PIETRO FIORENTINI Cirval 200 Use And Maintenance Manual
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PIETRO FIORENTINI Cirval 200 Use And Maintenance Manual

Medium-low pressure gas regulator
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Cirval
Medium-low pressure gas regulator
Revision E - Edition 12/2024
USE, MAINTENANCE
AND WARNING
MANUAL
EN

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  • Page 1 Cirval Medium-low pressure gas regulator Revision E - Edition 12/2024 USE, MAINTENANCE AND WARNING MANUAL...
  • Page 2 MEDIUM PRESSURE REGULATOR INTRODUCTION REV. E 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. COPYRIGHT 2024 © PIETRO FIORENTINI S.P.A. MEDIUM PRESSURE REGULATOR INTRODUCTION REV.
  • Page 4 MEDIUM PRESSURE REGULATOR INTRODUCTION REV. E Use, maintenance and warning manual...

  • Page 5: Revision History

    1.1 - REVISION HISTORY Revision index Date 09/2022 03/2023 04/2023 10/2024 12/2024 Tab. 1.1. MEDIUM PRESSURE REGULATOR INTRODUCTION REV. E 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 4 - DESCRIPTION AND OPERATION ..................29 4.1 - GENERAL DESCRIPTION ........................29 4.1.1 - REGULATOR REACTION MODES ......................30 4.2 - OPERATION ............................30 4.3 - INTENDED USE ............................32 4.3.1 - ENVISAGED USE ..........................32 4.3.2 - REASONABLY FORESEEABLE MISUSE ....................32 4.3.3 - TYPES OF FLUIDS ..........................32 4.4 - TECHNICAL FEATURES/PERFORMANCE ....................
  • Page 8 6 - INSTALLATION ........................59 6.1 - INSTALLATION PRE-REQUISITES ......................59 6.1.1 - ENVIRONMENTAL CONDITIONS ALLOWED ..................59 6.1.2 - CHECKS BEFORE INSTALLATION ......................60 6.2 - SPECIFIC SAFETY INSTRUCTIONS FOR THE INSTALLATION STEP ............61 6.3 - GENERAL INFORMATION ON CONNECTIONS ..................62 6.4 - REGULATOR INSTALLATION POSITIONS ....................
  • Page 9 11.2 - HOW TO REQUEST SPARE PARTS ...................... 107 12 - CALIBRATION TABLES ....................109 12.1 - CALIBRATION TABLE CIRVAL 200 ....................... 109 12.2 - CALIBRATION TABLE CIRVAL 300 ....................... 111 12.3 - CALIBRATION TABLE FOR SLAM-SHUT VALVE ................... 112...
  • Page 10 MEDIUM PRESSURE REGULATOR INTRODUCTION REV. E Use, maintenance and warning manual...

  • Page 11: General Information

    PIETRO FIORENTINI S.P.A. guarantees that the equipment was manufactured using the best materials, with high quality workmanship, and complies with the quality requirements, specifications and performance set out in the order. The warranty shall be considered null and void and PIETRO FIORENTINI S.P.A. shall not be liable for any damage and/or malfunctions: •...

  • 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: Recipients, Supply And Storage Of The 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 manual.

  • Page 14: Applied Rating Plates

    Removing rating plates 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 rating plates. The rating plates specify identification details of the equipment and its accessories to be provided, if necessary, to PIETRO FIORENTINI S.p.A.

  • Page 15: Glossary For Rating Plates

    2.8.1 - GLOSSARY FOR RATING PLATES The terms and abbreviations used on rating plates 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 Units Of Measurement

    Term Description Full setpoint range with regard to tripping caused by decreased pressure in the pressure switch Wdsu built into the slam-shut valve. This range can be obtained by adjusting but not replacing the components. Tab. 2.6. 2.9 - GLOSSARY OF UNITS OF MEASUREMENT 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 •...
  • Page 18 MEDIUM PRESSURE REGULATOR GENERAL INFORMATION REV. E 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 Table 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 The risks associated with the equipment are assessed below and the principles adopted for their prevention are indicated, according to the following classification: a) Elimination and/or reduction of the risk. b) Application of appropriate protective measures. c) Information to users about residual risks.
  • Page 22 3.3.1 - TABLE SHOWING RESIDUAL RISKS DUE TO PRESSURE Effect and Risk and hazard Event and Cause Solution and prevention consequence Pressurised gas a. Handling and installation with appropri- leak. • Violent impact; • Deformation; ate devices to avoid localised stress. Projection of •...
  • Page 23 Effect and Risk and hazard Event and Cause Solution and prevention consequence Pressurised gas • Deformation; leak. a. With the exclusion of what is set out in • Cracking and fis- Projection of • External loads bear- the project, the user must verify that no sure formation;...

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

    3.3.2 - TABLE OF RESIDUAL RISKS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES Table 3.11 shows the conditions that can lead to the generation of a potentially explosive atmosphere respectively for: • CIRVAL pressure regulator; • of the built-in IFM monitor; • of the built-in IMD monitor; •...
  • Page 25 Potentially Management measures in- Operating explosive Normative references cluded in the instructions for conditions atmosphere use and warning Breakage This type of malfunction is not rea- of other non-metal- sonably expected as it involves static lic parts sealing (to the outside). (malfunctioning) •...

  • 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 MEDIUM PRESSURE REGULATOR SAFETY REV. E Use, maintenance and warning manual...

  • Page 29: Description And Operation

    4 - DESCRIPTION AND OPERATION 4.1 - GENERAL DESCRIPTION The equipment CIRVAL is a piloted pressure regulator for medium and low pressure which reduces the inlet gas pressure, keeping the downstream value stable even when the following varies: • inlet pressure value; •...

  • Page 30: Regulator Reaction Modes

    4.1.1 - REGULATOR REACTION MODES The CIRVAL equipment is a direct acting regulator with a “fail open” reaction (on-opening reaction), that is, it opens in the event of: • breakage of main diaphragm • downstream pressure signal missing. 4.2 - OPERATION pstrEam prEssUrE ownstrEam prEssUrE...
  • Page 31 In the absence of pressure, the plug (1) is held in the open position by the thrust of the spring (4), via the lever mechanism (3) connected to the stem (2). The downstream pressure value (Pd) is regulated by comparing: •...

  • Page 32: 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 33: Technical Features/Performance

    • Cirval 200: 3/4” Orifice • Cirval 300: 1” 1/2 • Cirval 200: 1" 1/4, 1" 1/2 and 2" NPT according to ANSI B1.20.1 Connections • Cirval 300: 2" NPT to ANSI B1.20.1, 2" S.125FF to ANSI B16.5 Tab. 4.16.

  • Page 34: Possible Configurations

    Size 1” 1/4 1” 1/2 2” CIRVAL 300 BP CIRVAL 300 MP/TR CIRVAL 200 BP CIRVAL 200 MP/TR Tab. 4.18. 4.5.2 - ACCESSORIES The CIRVAL equipment can have different configurations through the installation of the following accessories: • Regulator with monitor function •...
  • Page 35 MEDIUM PRESSURE REGULATOR DESCRIPTION AND OPERATION REV. E Use, maintenance and warning manual...

  • Page 36: Regulator In Monitor Function

    4.5.3 - REGULATOR IN MONITOR FUNCTION The regulator with monitor function (1) is used to keep the downstream pressure value (Pd) within the preset limits in case of failure of the main regulator. The regulator with monitor function is installed upstream of the main pressure regulator. A regulator with a monitor function is a regulator that has a different, application-specific balancing device.
  • Page 37 OPERATION IN STAND-BY CONDITIONS The regulator with monitor function is open during normal operation since it is calibrated higher than the setting of the main regulator (2). pstrEam prEssUrE ownstrEam prEssUrE Fig. 4.4. In-line operation of regulator-monitor in stand-by conditions MEDIUM PRESSURE REGULATOR DESCRIPTION AND OPERATION REV.
  • Page 38 OPERATION IN THE EVENT OF FAILURE OF THE MAIN REGULATOR pstrEam prEssUrE ownstrEam prEssUrE Fig. 4.5. Operation of regulator-monitor with main regulator in faulty conditions In the event of failure of the main regulator (2), the regulator with monitor function (1) will intervene maintaining the down- stream pressure value (Pd) within the established limit for its calibration.

  • Page 39: Built-In Monitor

    4.5.4 - BUILT-IN MONITOR The built-in monitor (1) is installed upstream of the main regulator (2) in a fully open position during normal operation. The built-in monitor (1) is used to keep the pressure value downstream of the main regulator (2) within the pre-set limits in case of failure.

  • Page 40: Built-In Imd Monitor

    4.5.4.2 - BUILT-IN IMD MONITOR pstrEam prEssUrE ownstrEam prEssUrE Fig. 4.7. Built-in IMD monitors During normal operation, the plug (3) is held in the open position by the load of the setting spring (4). In the event of a failure of the main regulator (2), the downstream pressure (Pd) is controlled by comparing the load of the setting spring (4) with the force that the downstream pressure itself exerts on the diaphragm (5).
  • Page 41 If, during operation, the following should occur: Operating conditions Operating consequences Outcome Drop in downstream pressure • the force it exerts on the diaphragm (5) (Pd) for: Increase in the flow rate until the is less than the spring load (4); •...

  • Page 42: Slam-Shut Valve

    4.5.5 - SLAM-SHUT VALVE The slam-shut valve is a safety device is used to shut off the gas flow if the pressure value at the control point exceeds the calibration value of the valve itself. The slam-shut valve built-into the regulator consists of: •...
  • Page 43 In the event of tripping due to a pressure drop: • the downstream pressure (Pd) drops below the calibration value • the spring holder (7) stops the stroke • the movement to the closed position of the drive shaft (9) moves the touch probe (10) via the cam, disengaging the lever mechanism.
  • Page 44 MEDIUM PRESSURE REGULATOR DESCRIPTION AND OPERATION REV. E Use, maintenance and warning manual...

  • Page 45: Transport And Handling

    5 - TRANSPORT AND HANDLING 5.1 - SPECIFIC WARNINGS FOR TRANSPORT AND HANDLING NOTICE! Transport and handling must be carried out in compliance with the regulations in force in the country of installation by personnel who are: • qualified (specially trained); •...

  • Page 46: 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. Table 5.25 shows the types of packaging used: Ref.
  • Page 47 MEDIUM PRESSURE REGULATOR TRANSPORT AND HANDLING REV. E Use, maintenance and warning manual...

  • Page 48: Physical Characteristics Of The Equipment

    5.2 - PHYSICAL CHARACTERISTICS OF THE EQUIPMENT 5.2.1 - CIRVAL Fig. 5.9. Physical characteristics CIRVAL Overall dimensions CIRVAL Model Cirval 200 Cirval 300 Cirval 300 AU 167.7 267* 391.2 391.2 99.1 99.1 185.4 279.4 279.4 177.8 256.5 256.5 3/4" NPT 3/4"...

  • Page 49: Cirval + Ifm

    5.2.2 - CIRVAL + IFM Fig. 5.10. Physical characteristics CIRVAL + IFM Overall dimensions CIRVAL + IFM Model Cirval 200 Cirval 300 Cirval 300 AU 167.7 267* 391.2 391.2 391.2 391.2 185.4 279.4 279.4 177.8 256.5 256.5 3/4" NPT 3/4" NPT 3/4"...

  • Page 50: Cirval + Imd

    5.2.3 - CIRVAL + IMD Fig. 5.11. Physical characteristics CIRVAL + IMD Overall dimensions CIRVAL + IMD Model Cirval 200 Cirval 300 Cirval 300 AU 167.7 267* 391.2 391.2 185.4 177.8 256.5 256.5 3/4" NPT 3/4" NPT 3/4" NPT 1/4" NPT 1/4"...

  • Page 51: Cirval + La

    5.2.4 - CIRVAL + LA Fig. 5.12. Physical characteristics CIRVAL + LA Overall dimensions CIRVAL + LA Model Cirval 200 Cirval 300 Cirval 300 AU 167.7 267* 391.2 391.2 208.3 241.3 241.3 185.4 279.4 279.4 165.1 185.4 185.4 177.8 256.5 256.5...

  • Page 52: Equipment Anchoring And Lifting Method

    5.3 - EQUIPMENT ANCHORING AND LIFTING METHOD HAZARD! Before handling a load, make sure that its weight does not exceed the load capacity of the lifting equip- ment (and any other lifting tools) specified on the specific plate. WARNING! Unloading, transport and handling activities must be carried out by operators qualified and specially trained: •...

  • Page 53: 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 54 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 55: 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 56: Packaging Removal

    • do not install the equipment; • contact PIETRO FIORENTINI S.p.A. and specify the details provided on the equipment rating plate. 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 57: Storage And Environmental Conditions

    NOTICE! PIETRO FIORENTINI S.p.A. recommends checking the condition of rubber parts in case of downtime or storage longer than 3 years. MEDIUM PRESSURE REGULATOR TRANSPORT AND HANDLING REV.
  • Page 58 MEDIUM PRESSURE REGULATOR TRANSPORT AND HANDLING REV. E Use, maintenance and warning manual...

  • Page 59: Installation

    6 - INSTALLATION 6.1 - INSTALLATION PRE-REQUISITES 6.1.1 - ENVIRONMENTAL CONDITIONS ALLOWED 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 “Rating plates applied”). The installation site must be suitable for the safe use of the equipment.

  • Page 60: 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 MIPd ≤ 1.1 PS MIPd = Maximum incidental downstream pressure value (for further information, see UNI EN 12186:2014).

  • Page 61: 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 62: 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. The online installation must include: Pos. Description 1 shut-off valve upstream of the equipment. 2 vent valves one upstream and one downstream of the equipment. 2 pressure gauges one upstream and one downstream of the equipment.

  • Page 63: Regulator Installation Positions

    NOTICE! When used in gas pressure reduction stations, the device must be installed at least according to the re- quirements of standards UNI EN 12186:2014 or UNI EN 12279:2007. Equipment vents must be ducted in accordance with UNI EN 12186:2014 or UNI EN 12279:2007 or the standards in force at the place of installation of the equipment.

  • Page 64: Installation Procedures

    6.5 - INSTALLATION PROCEDURES 6.5.1 - EQUIPMENT INSTALLATION PROCEDURE 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 65 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 66: Post-Installation And Pre-Commissioning Checks

    If there is a multiple sensing line, connect the equipment connections as shown below: • 1 and 2 to the sensing line of the control head of the main regulator and of the regulator with monitor function or built- in monitors; •...

  • Page 67: 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 68 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 Special key for IFM, IMD monitors Torx key Tab. 7.43. MEDIUM PRESSURE REGULATOR REV. E COMMISSIONING AND MAINTENANCE EQUIPMENT Use, maintenance and warning manual...

  • Page 69: Equipment Needed For The Different Configurations

    Type (size) or code of the equipment. Tab. 7.44. CIRVAL ( + CIRVAL with monitor function) Equipment Model Ref. Type CIRVAL 200 CIRVAL 300 K./Wr. 6 - 17 - 20 - 26 6 - 24 - 26 - 10 - 46 K./Wr. 3 - 5 5 - 6 Tab.
  • Page 70 MEDIUM PRESSURE REGULATOR REV. E COMMISSIONING AND MAINTENANCE EQUIPMENT Use, maintenance and warning manual...

  • Page 71: 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 72: Preliminary Procedures For Commissioning

    8.2 - PRELIMINARY PROCEDURES FOR COMMISSIONING HAZARD! Before commissioning the equipment, it must be ensured that any risk of explosion or ignition source has been eliminated. WARNING! Before commissioning, you need to make sure that the characteristics of the equipment are suitable for the conditions of use.

  • Page 73: Checking The Outer Seal

    8.3 - CHECKING THE OUTER SEAL Completely sprinkle the equipment with a foaming solution (or equivalent control system) in order to check the tightness of the regulator’s external surfaces and of the connections made during installation. 8.4 - SETTING OF EQUIPMENT AND OF INCLUDED ACCESSORIES NOTICE! To properly calibrate the equipment and accessories present, refer to the accuracy class indicated on the rating plates (see section 2.8).

  • Page 74: Regulator Commissioning Procedure

    8.5 - REGULATOR COMMISSIONING PROCEDURE In the application consisting of two pressure adjusting lines, it is advisable to commission one line at a time, starting with the line with the lowest set point. The set point value is mentioned on the test certificate enclosed with each piece of equipment. Fig.
  • Page 75 Step Action Partially open the bleed cock (6). Open the upstream shut-off valve (V1) very slowly. NOTICE! Check the pressure by referring to the pressure gauge (4) located upstream. Check the pressure of the line inlet pipe by referring to the upstream pressure gauge (4). To calibrate the regulator (1) to the required setting value, turn the setting ring nut (3): •...

  • Page 76: Commissioning Procedure For The Regulator Cirval And The Regulator In Monitor Function

    8.6 - COMMISSIONING PROCEDURE FOR THE REGULATOR CIRVAL AND THE REGULATOR IN MONITOR FUNCTION Fig. 8.21. Commissioning of CIRVAL regulator + regulator in monitor function Step Action Remove the cap (7) from the main regulator (1). Remove the cap (10) from the regulator in inline monitor function (2). Partially open the bleed cock (6).
  • Page 77 Step Action Check that the regulator with in-line monitor function (2) is fully open (100%). NOTICE! The main regulator (1) is fully open, when the pressure indicated on the intermediate pressure gauge (4) is the same as the upstream pressure gauge (8). Close the bleed cock (6).

  • Page 78: Start-Up Procedure Of The Regulator + Built-In Ifm Monitor

    8.7 - START-UP PROCEDURE OF THE REGULATOR + BUILT-IN IFM MONITOR In the application consisting of two pressure adjusting lines, it is advisable to commission one line at a time, starting with the line with the lowest set point. The set point value is mentioned on the test certificate enclosed with each piece of equipment. Fig.
  • Page 79 Step Action Remove the cap (7) from the main regulator (1). Remove the cap (10) from the built-in IFM monitor (2). Partially open the bleed cock (6). Very slowly open the upstream shut-off valve (V1), checking that the downstream pressure (Pd) indicated on the downstream pressure gauge (5) does not exceed the required calibration value by more than 50%.

  • Page 80: Start-Up Procedure Of The Regulator + Built-In Imd Monitor

    8.8 - START-UP PROCEDURE OF THE REGULATOR + BUILT-IN IMD MONITOR In the application consisting of two pressure adjusting lines, it is advisable to commission one line at a time, starting with the line with the lowest set point. The set point value is mentioned on the test certificate enclosed with each piece of equipment. Fig.
  • Page 81 Step Action Remove the cap (7) from the main regulator (1). Partially open the bleed cock (6). Very slowly open the upstream shut-off valve (V1), checking that the downstream pressure (Pd) indicated on the downstream pressure gauge (5) does not exceed the required calibration value by more than 50%. Check the pressure of the line inlet pipe by referring to the upstream pressure gauge (8).

  • Page 82: Commissioning Procedure For The Cirval Regulator + La Slam-Shut Valve

    8.9 - COMMISSIONING PROCEDURE FOR THE CIRVAL REGULATOR + LA SLAM-SHUT VALVE 8.9.1 - INTERNAL TIGHTNESS CHECK OF LA SLAM-SHUT VALVE Fig. 8.24. Commissioning of the CIRVAL regulator with LA slam-shut valve Step Action Check that the slam-shut valve is in the shut-off position. Open the bleed cock (6) to fully discharge the downstream section.
  • Page 83 MEDIUM PRESSURE REGULATOR COMMISSIONING REV. E Use, maintenance and warning manual...

  • Page 84: Commissioning Of The Cirval Regulator + La Slam-Shut Valve

    8.9.2 - COMMISSIONING OF THE CIRVAL REGULATOR + LA SLAM-SHUT VALVE Fig. 8.25. Commissioning of the CIRVAL regulator with LA slam-shut valve Step Action Make sure that the bleed cock (6) is partially open. Check that the LA slam-shut valve is in the shut-off position. Partially open the upstream shut-off valve (V1), checking the pressure indicated by the upstream pressure gauge (4).
  • Page 85 Step Action If the pressure downstream (Pd) is not at the required calibration value, proceed as follows: • downstream pressure value (Pd) lower than required calibration value: load the setting spring by turning the adjustment ring nut clockwise (3) • downstream pressure value (Pd) higher than required calibration value: load the setting spring by turning the adjustment ring nut anti-clockwise (3) Check the downstream pressure (Pd) referring to the downstream pressure gauge (5).

  • Page 86: Setting Procedure For The La Slam-Shut Valve (La-Bp, La-Mp, La-Tr)

    8.9.3 - SETTING PROCEDURE FOR THE LA SLAM-SHUT VALVE (LA-BP, LA-MP, LA-TR) Fig. 8.26. Setting of the LA slam-shut valve SPRING SETTING FOR MAXIMUM PRESSURE TRIPPING Step Action Increase the downstream pressure to the slam-shut valve's tripping value by connecting an external pressure source to the drain cock (fig.
  • Page 87 SPRING SETTING FOR MINIMUM PRESSURE TRIPPING (IF PRESENT) Step Action Partially open the drain cock (fig. 8.20, ref. 6) to the atmosphere and keep it open for the next steps. Turn the adjustment ring nut (fig. 8.20, ref. 3) of the regulator anti-clockwise to decrease the downstream pres- sure (Pd) to the minimum pressure required for tripping of the slam-shut valve.

  • Page 88: Commissioning Procedure Of Regulation Line Cirval, In Line Regulator With Monitor Function + La Slam-Shut Valve

    8.10 - COMMISSIONING PROCEDURE OF REGULATION LINE CIRVAL, IN LINE REGULATOR WITH MONITOR FUNCTION + LA SLAM-SHUT VALVE Fig. 8.27. Commissioning of CIRVAL regulator + regulator with in-line monitor function + LA Step Action Partially open the bleed cock (6). Remove the cap (7) from the main regulator (2).
  • Page 89 Step Action Pull the reset stem of the slam-shut valve outwards until the LA slam-shut valve engages. NOTICE! Check the calibration pressure of the regulator with inline monitor function in the pressure gauge (5) after inserting the cap (10) into the regulator with inline monitor function (1). If the pressure downstream (Pd) is not at the required calibration value, proceed as follows: •...
  • Page 90 MEDIUM PRESSURE REGULATOR COMMISSIONING REV. E Use, maintenance and warning manual...

  • Page 91: 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 92: Operator Qualification Specification

    9.2 - 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 93 MEDIUM PRESSURE REGULATOR TROUBLESHOOTING REV. E Use, maintenance and warning manual...

  • Page 94: Troubleshooting Tables

    9.4 - TROUBLESHOOTING TABLES 9.4.1 - TROUBLESHOOTING CIRVAL REGULATOR CIRVAL 300 LID DETAIL CIRVAL 300 BALANCING BLOCK Fig. 9.28. Troubleshooting CIRVAL Failure Possible causes Intervention Broken main diaphragm (321) Replace Leakage from regulator vent in Relief valve (307) not calibrated Repeat calibration delivery Dirty or worn relief valve O-ring (317)
  • Page 95 Failure Possible causes Intervention Relief valve (307) not calibrated Repeat calibration Dirty or worn reinforced gasket (211) Clean and replace if needed Damaged valve seat (102) Replace Damaged valve seat O-ring (104) Replace Downstream pressure (Pd) ONLY VALID FOR CIRVAL 300 increases in static Damaged O-ring (215) of reinforced Replace...

  • Page 96: Troubleshooting Regulator Cirval With Monitor Function

    9.4.2 - TROUBLESHOOTING REGULATOR CIRVAL WITH MONITOR FUNCTION CIRVAL 300 LID DETAIL CIRVAL 300 BALANCING BLOCK Fig. 9.29. Troubleshooting CIRVAL in monitor function Failure Possible causes Intervention Broken main diaphragm (321) Replace Leakage from regulator vent in Relief valve (307) not calibrated Repeat calibration delivery Dirty or worn relief valve O-ring (317)
  • Page 97 Failure Possible causes Intervention Relief valve (307) not calibrated Repeat calibration Dirty or worn reinforced gasket (211) Clean and replace if needed Damaged valve seat (102) Replace Damaged valve seat O-ring (104) Replace Downstream pressure (Pd) ONLY VALID FOR CIRVAL 300 increases in static Damaged O-ring (215) of reinforced Replace...

  • Page 98: Built-In Ifm Monitor Troubleshooting

    Leakage from regulator vent in ONLY VALID FOR CIRVAL 300 delivery Clean and replace if needed Dirty or worn O-ring (216, 217) VALID ONLY FOR CIRVAL 200 Clean and replace if needed Dirty or worn O-ring (210, 216) MEDIUM PRESSURE REGULATOR TROUBLESHOOTING REV.
  • Page 99 ONLY VALID FOR CIRVAL 300 increases in dynamic Clean and replace if needed Dirty or worn O-ring (216, 217) VALID ONLY FOR CIRVAL 200 Clean and replace if needed Dirty or worn O-ring (210, 216) Relief valve (307) not calibrated...
  • Page 100 Failure Possible causes Intervention Broken main diaphragm (321) Replace Dirty or worn reinforced gasket (211) Clean and replace if needed Blocked stem (203) Clean Damaged valve seat (102) Replace Damaged valve seat O-ring (104) Replace Downstream pressure (Pd) Damaged O-ring (215) of reinforced decreases in static Replace gasket...
  • Page 101 MEDIUM PRESSURE REGULATOR TROUBLESHOOTING REV. E Use, maintenance and warning manual...

  • Page 102: Built-In Imd Monitor Troubleshooting

    9.4.4 - BUILT-IN IMD MONITOR TROUBLESHOOTING Fig. 9.31. Built-in IMD monitor troubleshooting Failure Possible causes Intervention Broken diaphragm (411) Replace Dirty or worn balancing block O-ring Leakage from the built-in IMD Clean and replace if needed (202) monitor vent Dirty or worn balancing block O-ring in delivery Clean and replace if needed (224)
  • Page 103 Failure Possible causes Intervention Broken diaphragm (411) Replace Dirty or worn balancing block O-ring Clean and replace if needed (202) Downstream pressure (Pd) Dirty or worn balancing block O-ring Clean and replace if needed increases in static (224) Dirty or worn flange O-ring (422) Clean and replace if needed Clogged nozzle (487) Clean and replace if needed...

  • Page 104: La Slam-Shut Valve Troubleshooting

    9.4.5 - LA SLAM-SHUT VALVE TROUBLESHOOTING WARNING! If the built-in slam-shut valve has tripped, close the upstream and downstream shut-off valves (V1 and V2) of the line before any operation and relieve the pressure. Fig. 9.32. Troubleshooting of the LA slam-shut valve Failure Possible causes Intervention...

  • Page 105: Uninstallation And Disposal

    10 - UNINSTALLATION AND DISPOSAL 10.1 - 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 106: Information Required In Case Of Re-Installation

    10.4 - INFORMATION REQUIRED IN CASE OF RE-INSTALLATION NOTICE! Should the equipment be reused after uninstallation, refer to chapters: • 6 “Installation”; • 8 “Commissioning”. 10.5 - 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.

  • Page 107: 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 parts PIETRO FIORENTINI S.p.A. PIETRO FIORENTINI S.p.A. shall not be held liable for any damage caused by using non-original parts. 11.2 - HOW TO REQUEST SPARE PARTS NOTICE! For specific information, please refer to the sales network of PIETRO FIORENTINI S.p.A.
  • Page 108 MEDIUM PRESSURE REGULATOR RECOMMENDED SPARE PARTS REV. E Use, maintenance and warning manual...

  • Page 109: Calibration Tables

    12 - CALIBRATION TABLES 12.1 - CALIBRATION TABLE CIRVAL 200 The spring setting ranges for the CIRVAL regulator are shown in the tables below: CIRVAL 200 BP Pos. Spring item code Spring colour Min. Max. 64470137RO 0.013 0.016 64470024BI White...
  • Page 110 CIRVAL 200 BP - IFM Pos. Spring item code Spring colour Min. Max. 64470139NE Black 0.015 0.026 64470024BI White 64470140MA Brown 0.027 0.05 64470024BI White 64470071GR Grey 0.051 0.08 64470031RO d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Min./Max.

  • Page 111: Calibration Table Cirval 300

    12.2 - CALIBRATION TABLE CIRVAL 300 CIRVAL 300 BP Pos. Spring item code Spring colour Min. Max. 64470382NE Black 0.014 0.027 2700525 Orange 64470301GI Yellow 0.028 0.04 2700645 64470302VI Purple 0.041 0.083 2700999 Grey d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Min./Max.

  • Page 112: Calibration Table For Slam-Shut Valve

    12.3 - CALIBRATION TABLE FOR SLAM-SHUT VALVE LA/BP “Max pressure” Pos. Spring item code Spring colour Min. Max. 64470112 0.03 0.049 64470115 Grey 0.05 0.18 d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Min./Max.
  • Page 113 LA/TR “Min pressure” Pos. Spring item code Spring colour Min. Max. 64470038 Yellow 0.499 64470045 Brown 0.999 Blue 1.999 64470046 Black 64470149 d = Wire Diameter (mm) Lo = Spring Length (mm) De = External Diameter (mm) Min./Max. = pressure (bar) Tab.
  • Page 114 TM0029ENG...

This manual is also suitable for:

Cirval 300Cirval 200 bpCirval 200 bp-ifmCirval 200 mp-ifmCirval 200 tr-ifmCirval 200 mp ... Show all

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