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...
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 ......................
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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...
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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...
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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 ...................
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SLAM-SHUT VALVE INTRODUCTION REV. A Use, maintenance and warning manual...
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.
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.
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.
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).
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).
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...
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- •...
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SLAM-SHUT VALVE GENERAL INFORMATION REV. A Use, maintenance and warning manual...
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.
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.
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.
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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.
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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;...
“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.
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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). •...
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;...
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!
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.
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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...
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.
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.
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).
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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...
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SLAM-SHUT VALVE DESCRIPTION AND OPERATION REV. A Use, maintenance and warning manual...
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; •...
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.
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SLAM-SHUT VALVE TRANSPORT AND HANDLING REV. A Use, maintenance and warning manual...
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: •...
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;...
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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...
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.
• 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.
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.
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.
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).
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.
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.
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.
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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.
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.
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:...
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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...
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”...
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SLAM-SHUT VALVE REV. A COMMISSIONING AND MAINTENANCE EQUIPMENT Use, maintenance and warning manual...
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.
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.
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”).
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.
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SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...
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".
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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.
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.
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SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...
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 •...
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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: •...
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 •...
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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: •...
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SLAM-SHUT VALVE COMMISSIONING REV. A Use, maintenance and warning manual...
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: •...
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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: •...
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: •...
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.
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: •...
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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...
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: •...
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.
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• 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).
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SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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SBC 782 1” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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).
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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...
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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.
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SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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).
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SBC 782 2” - 3” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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).
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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...
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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.
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VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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: •...
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VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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: •...
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VALID FOR 6" - 8" SBC 782 4” - 8” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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”...
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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...
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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.
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SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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: •...
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SBC 782 10” SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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.
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...
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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).
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Mod. 102 Pressure switch Mod. 102M/102MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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: •...
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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...
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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).
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Mod. 103/103MH Pressure switch Mod. 103M/103MH SLAM-SHUT VALVE MAINTENANCE AND FUNCTIONAL CHECKS REV. A Use, maintenance and warning manual...
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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).
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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).
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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...
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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: •...
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...
• 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;...
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: •...
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...
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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...
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.
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.
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.
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SLAM-SHUT VALVE RECOMMENDED SPARE PARTS REV. A Use, maintenance and warning manual...
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.
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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.
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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.
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