PIETRO FIORENTINI SBC 782 Use And Maintenance Manual
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PIETRO FIORENTINI SBC 782 Use And Maintenance Manual

Slam-shut valve
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SBC 782
Slam-shut valve
Revision A - Edition 02/2023
USE, MAINTENANCE
AND WARNING
MANUAL
EN
EN

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Summary of Contents for PIETRO FIORENTINI SBC 782

  • Page 1 SBC 782 Slam-shut valve Revision A - Edition 02/2023 USE, MAINTENANCE AND WARNING MANUAL...
  • Page 2 SLAM-SHUT VALVE INTRODUCTION REV. A Use, maintenance and warning manual...

  • Page 3: Introduction

    It is of particular importance that the personnel responsible for the equipment be trained in its use, maintenance and ap- plication of the safety instructions and procedures indicated in this manual. Revision: A COPYRIGHT 2023 © PIETRO FIORENTINI S.P.A. SLAM-SHUT VALVE INTRODUCTION REV. A...
  • Page 4 SLAM-SHUT VALVE INTRODUCTION REV. A Use, maintenance and warning manual...

  • Page 5: Revision History

    1.1 - REVISION HISTORY Revision Date Revision contents index 02/2023 First issue Tab. 1.1 SLAM-SHUT VALVE INTRODUCTION REV. A Use, maintenance and warning manual...

  • Page 6: Table Of Contents

    INDEX 1 - INTRODUCTION ........................3 1.1 - REVISION HISTORY ..........................5 2 - GENERAL INFORMATION ....................11 2.1 - MANUFACTURER IDENTIFICATION ......................11 2.2 - IDENTIFICATION OF THE PRODUCT ...................... 11 2.3 - REGULATORY FRAMEWORK ......................... 11 2.4 - WARRANTY ............................11 2.5 - SYMBOLS USED IN THE MANUAL ......................
  • Page 7 5.1 - SPECIFIC WARNINGS FOR TRANSPORT AND HANDLING ..............35 5.1.1 - PACKAGING AND FASTENERS USED FOR TRANSPORT ..............36 5.2 - PHYSICAL CHARACTERISTICS OF THE EQUIPMENT ................38 5.2.1 - SBC 782 ...............................38 5.3 - EQUIPMENT ANCHORING AND LIFTING METHOD................39 5.3.1 - FORKLIFT HANDLING METHOD ......................40 5.3.2 - CRANE HANDLING METHOD .......................42...
  • Page 8 8.4 - CALIBRATION OF EQUIPMENT AND ACCESSORIES INSTALLED ............59 8.5 - SLAM-SHUT VALVE COMMISSIONING PROCEDURE SBC 782 ............. 60 8.5.1 - CHECKING THE TIGHTNESS OF THE SLAM-SHUT VALVE SBC 782 ...........60 8.5.2 - START-UP OF THE SLAM-SHUT VALVE SBC 782 ................62 8.5.3 - PRESSURISING WITH EXTERNAL SOURCE ..................64...
  • Page 9 11 - UNINSTALLATION AND DISPOSAL ................139 11.1 - GENERAL SAFETY WARNINGS ......................139 11.2 - QUALIFICATION OF THE OPERATORS IN CHARGE ................139 11.3 - UNINSTALLATION ..........................139 11.4 - INFORMATION REQUIRED IN CASE OF RE-INSTALLATION ..............139 11.5 - DISPOSAL INFORMATION ........................140 12 - RECOMMENDED SPARE PARTS ...................
  • Page 10 SLAM-SHUT VALVE INTRODUCTION REV. A Use, maintenance and warning manual...

  • Page 11: General Information

    PIETRO FIORENTINI S.P.A., with registered office in Arcugnano (Italy) - Via E. Fermi, 8/10, declares under its sole respon- sibility that the equipment in the SBC 782 series, which is the subject of this manual, is designed, manufactured, tested and controlled in accordance with the requirements of standard EN 14382.

  • Page 12: Symbols Used In The Manual

    2.5 - SYMBOLS USED IN THE MANUAL Symbol Definition Symbol used to identify important warnings for the safety of the operator and/or equipment. Symbol used to identify information of particular importance in the instruction manual. The information may also concern the safety of the personnel involved in using the equipment. Obligation to consult the instruction manual/booklet.

  • Page 13: Addressees, Supply And Storage Of The Instruction Manual

    Keep the instruction manual near the equipment, in an accessible place known by all qualified technicians involved in using and running it. PIETRO FIORENTINI S.p.A. shall not be held liable for any damage to people, animals and property caused by failure to adhere to the warnings and operating procedures described in this instruction manual.

  • Page 14: Applied Rating Plates

    Removing nameplates and/or replacing them with other plates is strictly not allowed. Should the plates be unintentionally damaged or removed, the customer must notify PIETRO FIORENTINI S.p.A. The equipment and its accessories are provided with nameplates (from Id.1 to Id.3).

  • Page 15: Glossary For Nameplates

    2.8.1 - GLOSSARY FOR NAMEPLATES The terms and abbreviations used on nameplates are described in “Tab. 2.6”: Term Description Accuracy class. Slam-shut valve accuracy class due to pressure increase. AG max “OPSO” (Over pressure shut off). Slam-shut valve accuracy class due to pressure decrease. AG min ”UPSO”(Under pressure shut off).

  • Page 16: Glossary Of Measurement Units

    Term Description Full setpoint range with regard to tripping caused by decreased pressure in the pressure switch Wdsu incorporated in the slam-shut valve. This range can be obtained by adjusting but not replacing the components. Tab. 2.6 2.9 - GLOSSARY OF MEASUREMENT UNITS Type of measurement Unit of measurement Description Sm³/h...

  • Page 17: Qualified Professional Figures

    2.10 - QUALIFIED PROFESSIONAL FIGURES Qualified operators in charge of using and managing the equipment throughout its technical service life: Professional figure Definition Qualified technician able to: • perform preventive/corrective maintenance operations on all mechanical parts of the Mechanical equipment subject to maintenance or repair; maintenance techni- •...
  • Page 18 SLAM-SHUT VALVE GENERAL INFORMATION REV. A Use, maintenance and warning manual...

  • Page 19: Safety

    3 - SAFETY 3.1 - GENERAL SAFETY WARNINGS WARNING! The equipment described in this instruction manual is: • a device subjected to pressure in pressurised systems; • normally installed in systems carrying flammable gases (for example: natural gas). WARNING! If the gas used is a combustible gas, the installation area of the equipment is defined as a “danger zone” as there are residual risks that potentially explosive atmospheres may be generated.

  • Page 20: Personal Protective Equipment

    3.2 - PERSONAL PROTECTIVE EQUIPMENT ”Tab. 3.9” shows the personal protective equipment (PPE) and its description. An obligation is associated with each sym- bol. Personal protective equipment means any equipment intended to be worn by the worker in order to protect them against one or several risks that are likely to threaten their safety or health during work.

  • Page 21: Residual Risks

    3.3 - RESIDUAL RISKS In accordance with the requirements of PED 2014/68/EU, point 1.2 of Annex I, below is an assessment of the risks as- sociated with the equipment and an indication of the principles adopted for their prevention, according to the following classification: a) Elimination and/or reduction of the risk.
  • Page 22 3.3.1 - TABLE SHOWING RESIDUAL RISKS DUE TO PRESSURE Effect and Risk and hazard Event and Cause Solution and prevention consequence a. Handling and installation with appropri- Pressurised gas • Violent impact; • Deformation; ate devices to avoid localised stress. leakage.
  • Page 23 Effect and Risk and hazard Event and Cause Solution and prevention consequence Pressurised gas • Deformation; leakage. a. With the exclusion of what is set out in • Cracking and slot Projection of • External loads bear- the project, the user must verify that no formation;...

  • Page 24: Table Of Residual Risks For Potentially Explosive Atmospheres

    “Tab. 3.11” shows the conditions that can lead to the generation of a potentially explosive atmosphere by the slam-shut valve SBC 782 Considering that the silencer does not have active functional parts, in this analysis it is considered an integral part of the SBC 782 regulator.
  • Page 25 Potentially Management measures in- Operating explosive Regulatory references cluded in the instructions for conditions atmosphere use and warning Breakage of other This type of malfunction is not rea- non-metallic parts sonably expected as it involves static (malfunction) sealing (to the outside). •...

  • Page 26: Obligations And Prohibitions

    3.4 - OBLIGATIONS AND PROHIBITIONS The following is a list of obligations and prohibitions to be observed for the safety of the operator. It is mandatory to: • carefully read and understand the instructions for use and warning; • check whether the downstream equipment is suitably sized according to the performance required of the regulator in the actual operating condition;...

  • Page 27: Safety Pictograms

    Depending on the operating conditions, use and configuration required, the equipment may generate noise beyond the limits allowed by current legislation in the country of installation. For the value of the noise generated by the equipment and further information, contact PIETRO FIORENTINI S.p.A. ATTENTION!

  • Page 28: Description And Operation

    4.1 - GENERAL DESCRIPTION The slam-shut valve SBC 782 is a safety device that shuts off gas if the controlled pressure reaches the calibration value set for its tripping. The slam-shut valve SBC 782 can be installed individually or upstream of a regulator.
  • Page 29 Fig. 4.1. General descriptionSBC 782 pstream pressUre ownstream pressUre Fig. 4.2. HP2/2 bypass detail for slam-shut valve SBC 782 10” SLAM-SHUT VALVE DESCRIPTION AND OPERATION REV. A Use, maintenance and warning manual...

  • Page 30: Intended Use

    If no written approval is provided, use shall be considered improper. In the event of “improper use”, PIETRO FIORENTINI S.p.A. shall not be held liable for any damage caused to people or property, and any type of warranty on the equipment shall be deemed void.

  • Page 31: Technical Features/Performance

    TECHNICAL FEATURES/PERFORMANCE Slam-shut valve SBC 782 is suitable for medium and high pressure. SBC 782 is a “top entry” valve, therefore it allows easy maintenance without removing it from the line. It is also equipped with a button for local closing.

  • Page 32: Slam-Shut Valve Pressure Switches

    4.4.1 - SLAM-SHUT VALVE PRESSURE SWITCHES The pressure switch is a control device consisting of: Pos. Description Control element. NOTICE! The control element can be a diaphragm or a piston. Stem. Adjustment feeler gauges. Spring for maximum pressure tripping. Spring for minimum pressure tripping. UPSO minimum spring adjustment ring nut (6).
  • Page 33 Models of possible pressure switches for this valve are listed at Tab. 4.18: Model pressure Min [bar] Max [bar] switch 102M 0.2 - 2.8 0.2 - 5.5 102MH 2.2 - 5.5 0.2 - 5.5 103M 0.2 - 8 2 - 22 103MH 8 - 19 2 - 22...
  • Page 34 SLAM-SHUT VALVE DESCRIPTION AND OPERATION REV. A Use, maintenance and warning manual...

  • Page 35: Transport And Handling

    5 - TRANSPORT AND HANDLING 5.1 - SPECIFIC WARNINGS FOR TRANSPORT AND HANDLING NOTICE! Transport and handling must be carried out by personnel: • qualified (specially trained); • who are familiar with accident prevention and workplace safety regulations; • authorised to use lifting equipment; •...

  • Page 36: Packaging And Fasteners Used For Transport

    PIETRO FIORENTINI S.p.A.. NOTICE! PIETRO FIORENTINI S.p.A. shall not be liable for any damage to people or property caused by accidents due to failure to comply with the instructions provided in this manual. “Tab. 5.20” shows the types of packaging used: Ref.
  • Page 37 SLAM-SHUT VALVE TRANSPORT AND HANDLING REV. A Use, maintenance and warning manual...

  • Page 38: Physical Characteristics Of The Equipment

    5.2 - PHYSICAL CHARACTERISTICS OF THE EQUIPMENT 5.2.1 - SBC 782 Fig. 5.4. SBC 782 physical characteristics SBC 782 overall dimensions Size [inches] 1” 2” 2” 1/2 3” 4” 6” 8” 10” Nominal diameter [mm] S - ANSI 150/PN16 S - ANSI 300...

  • Page 39: Equipment Anchoring And Lifting Method

    5.3 - EQUIPMENT ANCHORING AND LIFTING METHOD HAZARD! Before moving the equipment, make sure that the capacity of the lifting equipment is suitable for the load. WARNING! Unloading, transport and handling activities must be carried out by operators qualified and specially trained: •...

  • Page 40: Forklift Handling Method

    5.3.1 - FORKLIFT HANDLING METHOD HAZARD! It is forbidden to: • Do not transit under suspended loads; • Do not move the load over the personnel operating in the site/plant area. WARNING! The following is not allowed on forklifts: • carrying passengers;...
  • Page 41 Step Action Image Sollevare lentamente il carico di qualche decina di centimetri e veri carne la stabilità facendo attenzio- Inclinare il montante all’indietro (verso il posto guida) per avvantaggiare il momento ribaltante e Adeguare la velocità d ne che il baricentro del carico sia posizionato al centro delle forche di sollevamento. garantire una maggiore stabilità...

  • Page 42: Crane Handling Method

    5.3.2 - CRANE HANDLING METHOD WARNING! It is mandatory to use CE marked chains, ropes and eyebolts or marked with conformity marks/markings in accordance with the regulations in force in the place of installation. Do not use chains connected to each other by bolts.

  • Page 43: Packaging Removal

    • do not install the equipment; • contact PIETRO FIORENTINI S.p.A. and specify the details provided on the equipment nameplate. 5.4.1 - PACKAGING DISPOSAL NOTICE! Sort the various materials making up the packaging and dispose of them in compliance with the regula- tions in force in the country of installation.

  • Page 44: Storage And Environmental Conditions

    For the replacement of the rubber parts of the equipment, please refer to “9 - Maintenance and functional checks”. NOTICE! PIETRO FIORENTINI S.p.A. recommends checking the condition of rubber parts in case of downtime or storage longer than 3 years.

  • Page 45: Installation

    6 - INSTALLATION 6.1 - INSTALLATION PRE-REQUISITES 6.1.1 - ALLOWED ENVIRONMENTAL CONDITIONS WARNING! To safely use the equipment, in full respect of the allowed environmental conditions, follow the data shown on the regulator plate and on any accessories (refer to paragraph “2.8 - Applied rating plates”). The installation site must be suitable for the safe use of the equipment.

  • Page 46: Checks Before Installation

    6.1.2 - CHECKS BEFORE INSTALLATION The equipment does not require any further upstream safety device for protection against any overpressure with respect to its PS admissible pressure when, for the upstream reduction station, the maximum incidental downstream pressure is: MIPd ≤ 1.1 PS MIPd = Maximum incidental downstream pressure value (for further information, see UNI EN 12186:2014).

  • Page 47: Specific Safety Instructions For The Installation Step

    6.2 - SPECIFIC SAFETY INSTRUCTIONS FOR THE INSTALLATION STEP WARNING! Before proceeding with installation, make sure that the upstream and downstream valves installed on the line are shut off. WARNING! Installation may also take place in areas where there is a risk of explosion, which implies that all necessary prevention and protection measures have to be taken.

  • Page 48: General Information On Connections

    6.3 - GENERAL INFORMATION ON CONNECTIONS The equipment must be installed in-line with an arrow on the body pointing to the gas flow direction. They must be present in the online installation (see Fig. 6.5): Pos. Description 1 shut-off valve upstream of the equipment. 2 vent valves one upstream and one downstream of the equipment.

  • Page 49: Regulator Installation Positions

    6.4 - REGULATOR INSTALLATION POSITIONS Fig. 6.6 and Fig. 6.7 illustrate typical regulator arrangements: Fig. 6.6. Standard position Fig. 6.7. Inverted position SLAM-SHUT VALVE INSTALLATION REV. A Use, maintenance and warning manual...

  • Page 50: Installation Procedures

    6.5 - INSTALLATION PROCEDURES 6.5.1 - EQUIPMENT INSTALLATION PROCEDURES Step Action Place the equipment in the section of the line designated for it. Place the gaskets between the line flanges and the regulator flanges. Insert the bolts into the appropriate holes of the connecting flanges. Screw the bolts following the technical rules for tightening flanges.
  • Page 51 To calculate the flow rate, use the following formula: 1 − 0,002 = 345,92 V = gas velocity in m/sec Q = gas flow rate Sm³/h DN = nominal pipe diameter in mm Dp = regulator outlet pressure in barg NOTICE! All on-site pneumatic connections must have pipes with a minimum internal diameter of 8 mm.

  • Page 52: Post-Installation And Pre-Commissioning Checks

    If there is a multiple sensing line, connect the equipment connections as shown below: • 1 and 2 free sensing lines • 3 and 4 regulator sensing lines (if applicable) • 5 and 6 pressure switch sensing lines. NOTICE! If there is a multiple sensing line, it is not recommended to place shut-off valves on sensing lines. In any case, follow the regulations in force in the place of installation and use of the equipment.

  • Page 53: Commissioning/Maintenance Equipment

    7 - COMMISSIONING/MAINTENANCE EQUIPMENT 7.1 - LIST OF EQUIPMENT Use of commissioning/maintenance equipment • Mechanical maintenance technician; • Electrical maintenance technician; Operator qualification • Installer; • Name of the user. WARNING! The PPE listed in this table is related to the risk associated with the equipment. PPE required For the PPE required to protect against risks associated with the workplace, installation or operating conditions, please refer to:...
  • Page 54 Ref. Equipment type Image T-handle hex socket wrench Phillips screwdriver Slotted screwdriver O-ring extraction tool Circlip pliers Fiorentini special key Fiorentini special key Fiorentini special tool Tab. 7.32 SLAM-SHUT VALVE REV. A COMMISSIONING AND MAINTENANCE EQUIPMENT Use, maintenance and warning manual...

  • Page 55: Equipment Needed For The Different Configurations

    Indicates the Nominal Diameter of the reference configuration. Length, referred to the equipment. Ref. Reference to the equipment. Type Type (size) or code of the equipment. Tab. 7.33 SBC 782 Equipment Size [inches] | DN [mm] Ref. Type 1” | 25 2” | 50 2”...
  • Page 56 SLAM-SHUT VALVE REV. A COMMISSIONING AND MAINTENANCE EQUIPMENT Use, maintenance and warning manual...

  • Page 57: Commissioning

    8 - COMMISSIONING 8.1 - GENERAL WARNINGS 8.1.1 - SAFETY REQUIREMENTS FOR COMMISSIONING HAZARD! During commissioning the risks associated with any discharges to the atmosphere of flammable or nox- ious gases must be evaluated. HAZARD! In case of installation on distribution networks for natural gas, consider the risk associated with explosive mixtures (gas/air) being formed inside the piping, if the line is not subjected to inerting.

  • Page 58: Preliminary Procedures For Commissioning

    8.2 - PRELIMINARY PROCEDURES FOR COMMISSIONING HAZARD! Before commissioning the equipment, it must be ensured that any source of explosion has been eliminat- ed if there is such a danger. WARNING! Before commissioning, you need to make sure that the characteristics of the equipment are suitable for the conditions of use.

  • Page 59: Proper Commissioning Check

    8.3 - PROPER COMMISSIONING CHECK Completely sprinkle the equipment with a foaming solution (or equivalent control system) in order to check the tightness of the external surfaces of the regulator and the connections made during the installation. 8.4 - CALIBRATION OF EQUIPMENT AND ACCESSORIES INSTALLED NOTICE! To properly calibrate the equipment and accessories present, refer to the accuracy class indicated on the nameplates (see section “2.8 - Applied rating plates”).

  • Page 60: Slam-Shut Valve Commissioning Procedure Sbc 782

    8.5 - SLAM-SHUT VALVE COMMISSIONING PROCEDURE SBC 782 8.5.1 - CHECKING THE TIGHTNESS OF THE SLAM-SHUT VALVE SBC 782 Fig. 8.11. Checking the tightness of the slam-shut valve SBC 782 Step Action Check that the slam-shut valve is in the shut-off position.
  • Page 61 SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...

  • Page 62: Start-Up Of The Slam-Shut Valve Sbc 782

    8.5.2 - START-UP OF THE SLAM-SHUT VALVE SBC 782 For the following procedure, please refer to “Fig. 8.12. Start-up of the slam-shut valve SBC 782”. Fig. 8.12. Start-up of the slam-shut valve SBC 782 Fig. 8.13. HP2/2 by-pass detail only valid for 10".
  • Page 63 Step Action a- VALID FOR VALVE MOUNTED INDIVIDUALLY Check that the drain cock (6) is closed. b- VALID FOR VALVE MOUNTED UPSTREAM OF THE REGULATOR Make sure that the bleed cock (6) is partially open. Check that the slam-shut valve (3) is in the closed position. NOTICE! If the slam-shut valve (3) is in the open position, close it using the manual button (Fig.

  • Page 64: Pressurising With External Source

    8.5.3 - PRESSURISING WITH EXTERNAL SOURCE It is possible to pressurise the chamber (A) of the pressure switch control head (1) using an external source. The intro- duced pressure is controlled by using pressure gauges or transducers. To correctly discharge the introduced pressure, make sure there is an additional bleed cock (2). Fig.
  • Page 65 SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...

  • Page 66: Calibration Procedure For Pressure Switches Mod. 100

    8.5.4 - CALIBRATION PROCEDURE FOR PRESSURE SWITCHES MOD. 100 8.5.4.1 - CALIBRATION PROCEDURE WITHOUT REGULATOR Fig. 8.15. Calibration of pressure switches Mod.100 SPRING CALIBRATION FOR MAXIMUM PRESSURE TRIP Step Action Increase the downstream pressure (Dp) to check correct calibration: • of the line, using an external pressure source •...
  • Page 67 SPRING CALIBRATION FOR MINIMUM PRESSURE TRIP (IF ANY) Step Action Partially open the drain cock (Fig. 8.11, ref. 6) and keep it open for the next steps. Decrease the downstream pressure to the minimum required slam-shut valve pressure. NOTICE! Check the pressure referring to the downstream pressure gauge (Fig. 8.11, ref. 5). If the slam-shut valve: •...

  • Page 68: Calibration Procedure With Regulator

    8.5.4.2 - CALIBRATION PROCEDURE WITH REGULATOR Fig. 8.16. Calibration of pressure switches Mod.100 SPRING CALIBRATION FOR MAXIMUM PRESSURE TRIP Step Action Increase the downstream pressure (Dp) to the slam-shut valve's tripping value to check the correct setting: • of the line, using an external pressure source •...
  • Page 69 SPRING CALIBRATION FOR MINIMUM PRESSURE TRIP (IF ANY) Step Action Partially open the drain cock (Fig. 8.11, ref. 6) and keep it open for the next steps. Decrease the downstream pressure to the minimum required slam-shut valve pressure. NOTICE! Check the pressure referring to the downstream pressure gauge (Fig. 8.11, ref. 5). If the slam-shut valve: •...
  • Page 70 SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...

  • Page 71: Maintenance And Functional Checks

    WARNING! In case of doubt, do not perform any work. Contact PIETRO FIORENTINI S.p.A. for the necessary clarifica- tions. The management and/or use of the equipment includes interventions that are necessary as a result of normal use such as: •...
  • Page 72 Before beginning disassembly of the equipment, make sure that: • the spare parts and parts used in replacements have adequate requirements to ensure the original performance of the equipment. Use original, compliant spare parts; • the operator must have the necessary equipment (see chapter “7 - Commissioning/maintenance equipment”). NOTICE! The recommended spare parts are unambiguously identified with tags indicating: •...

  • Page 73: Periodically Checking And Inspecting The Equipment For Proper Operation

    9.2 - PERIODICALLY CHECKING AND INSPECTING THE EQUIPMENT FOR PROPER OPERATION Periodic checks and inspections Operator qualification Mechanical maintenance technician WARNING! The PPE listed in this table is related to the risk associated with the equipment. PPE required For the PPE required to protect against risks associated with the workplace, installation or operating conditions, please refer to: •...

  • Page 74: Routine Maintenance

    9.3 - ROUTINE MAINTENANCE 9.3.1 - GENERAL SAFETY WARNINGS HAZARD! • Put the equipment in a safe condition (close the downstream shut-off valve and then the upstream one, and drain the line completely); • ensure that the pressure upstream and downstream of the equipment is “0”. NOTICE! Before installing new sealing elements (o-rings, diaphragm, etc.), they must be checked for integrity.

  • Page 75: Replacement Frequency For Components Subject To Wear

    9.3.2 - REPLACEMENT FREQUENCY FOR COMPONENTS SUBJECT TO WEAR NOTICE! The following provisions shall apply to equipment components only. The non-metallic parts of the equipment concerned are divided into the following two categories: Preventive maintenance work Parts subject to wear and/or abrasion, where: •...
  • Page 76 Minimum Category Part description Evaluation criterion replacement frequency Shut-off valves Yearly Lubricating parts Other equipment Yearly Filter elements Filters needed Tab. 9.47 SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...

  • Page 77: Routine Maintenance Procedures

    9.4 - ROUTINE MAINTENANCE PROCEDURES Routine maintenance Operator qualification Operator qualification WARNING! The PPE listed in this table is related to the risk associated with the equipment. PPE required For the PPE required to protect against risks associated with the workplace, installation or operating conditions, please refer to: •...

  • Page 78: Tightening Torques

    9.4.1 - TIGHTENING TORQUES 9.4.1.1 - SLAM-SHUT VALVE TIGHTENING TORQUES SBC 782 Fig. 9.17. Tightening torques SBC 782 SBC 782 1” Pos. Description Torque (Nm) Torque (ft - lb) Screw M6X12 UNI 5931 Screw M6X20 UNI 5931 Screw M6X20 UNI 5931...
  • Page 79 Fig. 9.18. Tightening torques SBC 782 SBC 782 2” Pos. Description Torque (Nm) Torque (ft - lb) Screw M12X35 UNI 5739 Screw M6X12 UNI 5931 Screw M6X20 UNI 5931 Screw M6X20 UNI 5931 Screw M6X20 UNI 5931 Screw M12X45 UNI 5931 Tab.
  • Page 80 Fig. 9.19. Tightening torques SBC 782 SBC 782 3” Pos. Description Torque (Nm) Torque (ft - lb) Screw M12X40 UNI 5739 Screw M12X40 UNI 5739 Screw M6X12 UNI 5931 Screw M6X12 UNI 5931 Screw M6X20 UNI 5931 Screw M6X20 UNI 5931...
  • Page 81 Fig. 9.20. Tightening torques SBC 782 SBC 782 4” Pos. Description Torque (Nm) Torque (ft - lb) Screw M16X50 UNI 5739 Screw M6X16 UNI 5931 Screw M6X12 UNI 5931 Screw M6X14 UNI 5934 Screw M6X20 UNI 5931 Screw M6X14 UNI 5933 Screw M6X20 UNI 5931 Tab.
  • Page 82 Fig. 9.21. Tightening torques SBC 782 SBC 782 8” Pos. Description Torque (Nm) Torque (ft - lb) Safety valve screw M10 Screw M14X55 UNI 5737 Screw M6X16 UNI 5931 Screw M6X10 UNI 5931 Screw M8X25 UNI 5931 Screw M6X40 UNI 5931...
  • Page 83 Fig. 9.22. Tightening torques SBC 782 SBC 782 10” Pos. Description Torque (Nm) Torque (ft - lb) Screw M16X90 UNI 5737 Screw M16X70 UNI 5737 Screw M6X16 UNI 5931 Nut M20 UNI 5589 Screw M6X20 UNI 5931 Screw M8X25 UNI 5931...
  • Page 84 9.4.1.2 - TIGHTENING TORQUES FOR PRESSURE SWITCHES MODELS 102M/102MH - 105M/105MH Fig. 9.23. Tightening torques for pressure switches models 102M/102MH - 105M/105MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 85 MOD. 102M/102MH Pos. Description Torque (Nm) Torque (ft - lb) Screw M4X10 UNI 5931 Screw M5X10 UNI 5933 Screw M6X16 UNI 5931 Nut M6 UNI 5588 Screw M5X15 UNI 8112 Screw M6X25 UNI 5931 Nut M20X1 Screw M5X16 UNI 5931 Tab.
  • Page 86 SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...

  • Page 87: Replacing Elements Subject To Wear And Abrasion

    9.4.2 - REPLACING ELEMENTS SUBJECT TO WEAR AND ABRASION 9.4.2.1 - INITIAL OPERATIONS ATTENTION! Before carrying out any work, it is important to ensure that the line on which the regulator is installed has been shut off upstream and downstream, and discharged. ATTENTION! During assembly, make sure to tighten the screws as per the tables (tightening torques), according to the size for which maintenance is being carried out.

  • Page 88: Slam-Shut Valve Maintenance Procedure Sbc 782

    9.4.3 - SLAM-SHUT VALVE MAINTENANCE PROCEDURE SBC 782 9.4.3.1 - SBC 782 1” Fig. 9.25. SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 89 • 1”: Tab. 9.49 NOTICE! Tighten the screws as shown in the diagram at “SBC 782 1””. Unscrew and remove the screws (30) from the plug unit. Undo and remove the toothed washers (60). Take out the plug unit (48, 4, 18, 1, 19, 40, 25, 2).
  • Page 90 SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 91 Step Action Undo the plug screw (5). Remove the washer (26). Remove the spring (48) and the spring support (4). Undo and remove the screws (22) of the pressure switch. Remove the cover (119) together with the gasket (29). Unscrew and remove the side screws (39) located inside the pressure switch. Unscrew and remove the screws (35) from the pressure switch.
  • Page 92 SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 93 Step Action Insert and fasten the screws (34) into the intermediate casing (13) according to the tightening torques: • 1”: Tab. 9.49 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Fit the cup (15). Fit the pressure switch unit.
  • Page 94 SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 95 Step Action Insert and fix the screws (36) according to the following tightening torque: • 1”: Tab. 9.49 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Schema a croce per il serraggio delle viti”. Unscrew and remove the screws (64) from the lower flange (3). Remove the lower flange (3).
  • Page 96 9.4.3.2 - SBC 782 2” - 3” Fig. 9.26. SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 97 Step Action Unscrew and remove the upper screws (64) that secure the control head to the valve body. Remove the O-ring (37, 14) from the flange (9) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Unscrew and remove the screws (11) from the slam-shut valve body.
  • Page 98 SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 99 Step Action Undo and remove the screws (22) of the pressure switch. Remove the cover (119) together with the gasket (29). Unscrew and remove the side screws (36) located inside the control pressure switch. Undo and remove the outer screws (35). Take out the pressure switch unit.
  • Page 100 SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 101 Step Action Insert and fix the screws (34) according to the following tightening torque: • 2”: Tab. 9.50 • 2” 1/2: Tab. 9.51 • 3”: Tab. 9.52 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Fit the cup (15).
  • Page 102 SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 103 Step Action Insert and fix the screws (64) according to the following tightening torque: • 2”: Tab. 9.50 • 2” 1/2: Tab. 9.51 • 3”: Tab. 9.52 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Unscrew and remove the screws (100) from the lower flange (3).
  • Page 104 9.4.3.3 - SBC 782 4” - 8” VALID FOR 6" - 8" Fig. 9.27. SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 105 Step Action Unscrew and remove the screws (31) securing the control head to the regulator body. Remove the O-ring (37, 14) from the flange (9) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Unscrew and remove the screws (11) from the slam-shut valve body.
  • Page 106 VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 107 Step Action Remove the O-ring (40) from the plug (2) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Fit the ring nut (1). Insert and fix the screws (33) according to the following tightening torques: •...
  • Page 108 VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 109 Step Action Remove the I/DWR ring (25) from the cup (15) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before fitting the replacement I/DWR ring, clean the retaining slots using a cleaning solution. Place the seeger ring (58) in the cup (15). Take out the pressure switch unit.
  • Page 110 VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 111 Step Action Insert and fix the screws (35) according to the following tightening torques: • 4”: Tab. 9.53 • 6”: Tab. 9.54 • 8”: Tab. 9.55 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Insert and fix the side screws (36) into the pressure switch according to the following tightening torques: •...
  • Page 112 VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 113 Step Action Remove the O-ring (14) from the lower flange (3) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Fit the lower flange (3). ONLY VALID FOR 6”- 8”...
  • Page 114 9.4.3.4 - SBC 782 10” Fig. 9.28. SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 115 Step Action Unscrew and remove the screws (31) securing the control head to the regulator body. Remove the O-ring (37) from the flange (9) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Unscrew and remove the screws (11) from the slam-shut valve body.
  • Page 116 SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 117 Step Action Undo the screws (36). Remove the cup (15). Remove the O-ring (42) from the cup (15) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Remove the I/DWR ring (38) from the cup (15) and replace it, taking care to lubricate it with synthetic grease.
  • Page 118 SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 119 Step Action Place the stem (6) in the bush (10). NOTICE! Lubricate the stem surface with silicone grease. Fit the intermediate body (13). Fit the pressure switch unit. Insert and fix the screws (35) according to the following tightening torque: •...
  • Page 120 SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 121 Step Action Position and secure the nuts (131), together with the washer (32). Insert and fix the screws (31) according to the following tightening torque: • 10”: Tab. 9.56 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Tab.

  • Page 122: Maintenance Procedure For Pressure Switches Mod. 100

    9.4.4 - MAINTENANCE PROCEDURE FOR PRESSURE SWITCHES MOD. 100 9.4.4.1 - PRESSURE SWITCH MOD. 102M/102MH Mod. 102 Fig. 9.29. Pressure switch Mod. 102M/102MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 123 Step Action Unscrew and remove the cap (18). Remove the O-ring (16) from the cover (18) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Completely release the spring (11) by adjusting the ring nut (13).
  • Page 124 Mod. 102 Pressure switch Mod. 102M/102MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 125 Step Action Position the bush (35) together with the O-ring (27). NOTICE! Before inserting the bush (35), lubricate the inner surface with silicone grease. Fit the lower cover (41). NOTICE! Make sure there is a gasket between the lower cover and the pressure switch body. Insert and fix the screws (48) according to the following tightening torque: •...
  • Page 126 9.4.4.2 - PRESSURE SWITCH MOD. 103M/103MH Mod. 103/103MH Fig. 9.30. Pressure switch Mod. 103M/103MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 127 Step Action Unscrew and remove the cap (18). Remove the O-ring (16) from the cover (18) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Completely release the spring (11) by adjusting the ring nut (13).
  • Page 128 Mod. 103/103MH Pressure switch Mod. 103M/103MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 129 Step Action Insert and fix the screws (48) according to the following tightening torque: • Mod. 103: Tab. 9.58 NOTICE! • Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”; • Make sure there is a gasket between the lower cover and the pressure switch body. Fit the diaphragm protection disc (44).
  • Page 130 9.4.4.3 - PRESSURE SWITCH MOD. 104M/104MH - 105M/105MH Mod. 104M/104MH Mod. 105M/105MH Fig. 9.31. Pressure switch Mod. 104M/104MH - 105M/105MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 131 Step Action Unscrew and remove the cap (18). ¹ Remove the O-ring (16) from the cover (18) and replace it, taking care to lubricate it with synthetic grease. NOTICE! Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution. Completely release the spring (11) by adjusting the ring nut (13).
  • Page 132 Mod. 104M/104MH Mod. 105M/105MH Pressure switch Mod. 104M/104MH - 105M/105MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
  • Page 133 Step Action Insert and fix the screws (48) according to the following tightening torques: • Mod. 104-105: Tab. 9.59 NOTICE! Tighten the screws as shown in the diagram at “9.4.2.2 - Cross diagram for tightening screws”. Fit the upper cover (40). Insert and fix the screws (42) according to the following tightening torques: •...

  • Page 134: Procedure For Recommissioning After Maintenance

    9.4.5 - PROCEDURE FOR RECOMMISSIONING AFTER MAINTENANCE NOTICE! For the re-commissioning procedure, please follow the instructions in section “8.5 - Slam-shut valve com- missioning procedure” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...

  • Page 135: Troubleshooting

    • qualified and authorised to carry out activities related to the equipment. WARNING! PIETRO FIORENTINI S.p.A. shall not be held liable for any damage to people and property due to services: • other than those described; • performed according to methods other than those specified;...

  • Page 136: Operator Qualification Specification

    10.2 - OPERATOR QUALIFICATION SPECIFICATION Commissioning • Mechanical maintenance technician; • Electrical maintenance technician; Operator qualification • Installer; • Name of the user. WARNING! The PPE listed in this table is related to the risk associated with the equipment. PPE required For the PPE required to protect against risks associated with the workplace, installation or operating conditions, please refer to: •...

  • Page 137: Troubleshooting Tables

    10.4 - TROUBLESHOOTING TABLES NOTICE! See chapter “9 - Maintenance and functional checks” for pictures of the regulator SBC 782 and its acces- sories. 10.4.1 - TROUBLESHOOTING SBC 782 REGULATOR Failure Device Possible causes Service Max. and min. pressure Carry out the calibration...
  • Page 138 Failure Device Possible causes Service Clean and replace if needed O-ring (40) not sealing SB/82 BUILT-IN Plug pad (19) not sealing Clean and replace if needed SLAM-SHUT VALVE Conical seat (8) Replace ONLY VALID FOR 1” - 3” damaged Clean and replace if needed O-ring (39) not sealing Clean and replace if needed O-ring (40) not sealing...

  • Page 139: Uninstallation And Disposal

    11 - UNINSTALLATION AND DISPOSAL 11.1 - GENERAL SAFETY WARNINGS HAZARD! Make sure that there are no potentially explosive ignition sources in the work area set up to uninstall and/ or dispose of the equipment. WARNING! Before proceeding with uninstallation and disposal, make the equipment safe by disconnecting it from any power supply.

  • Page 140: Disposal Information

    11.5 - DISPOSAL INFORMATION NOTICE! Bear in mind that the laws in force in the country of installation must be complied with. Illegal or improper disposal involves the application of the penalties provided for by the legislation in force in the country of installation. NOTICE! Proper disposal prevents damage to humans and the environment and promotes the reuse of precious raw materials.

  • Page 141: Recommended Spare Parts

    If non-original spare parts are used,PIETRO FIORENTINI S.p.A. their declared performance cannot be guaranteed. It is recommended to use original spare partsPIETRO FIORENTINI S.p.A. PIETRO FIORENTINI S.p.A. shall not be held liable for any damage caused by using non-original parts. 12.2 - HOW TO REQUEST SPARE PARTS NOTICE! For specific information, please refer to the sales network of PIETRO FIORENTINI S.p.A.
  • Page 142 SLAM-SHUT VALVE RECOMMENDED SPARE PARTS REV. A Use, maintenance and warning manual...

  • Page 143: Calibration Tables

    13 - CALIBRATION TABLES 13.1 - CALIBRATION TABLES FOR PRESSURE SWITCHES MOD. 100 Mod. 102M/102MH - Max pressure Pos. Spring item code Spring colour Min. 2701260 White 2701530 Yellow 0.801 2701790 Yellow/black 1.601 2702280 White/red 2.601 d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Tab.
  • Page 144 Mod. 103M - Min pressure Pos. Spring item code Spring colour Min. 2700464 Orange 2700513 0.501 2700713 Green 0.801 2700750 Black 1.701 2700985 Brown 4.001 d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Tab.
  • Page 145 Mod. 105M/105MH - Max pressure Pos. Spring item code Spring colour Min. 2702280 White/Red 2702450 65.001 d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Tab. 13.80 Mod. 105M - Min pressure Pos. Spring item code Spring colour Min.
  • Page 146 TM0041EN...

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