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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE SAFETY SIGNS AND LABELS Signs or labels are included throughout this document. These signs or labels communicate the following messages: • The level of hazard seriousness • The nature of the hazard • The consequence of human or product interaction with the hazard •...
& Industrial cannot possibly be aware of, evaluate or advise, all of the conceiv able methods by which tasks might be performed, or of the possible hazardous consequences of each of those methods. Consequently, anyone who uses a procedure and/or tool, which is not recommended by Trillium Flow Technologies and Industrial, or...
• Never modify or change the valves, especially when they are under pressure. It is essential that you inform Trillium Flow Technologies in All instances if any machining of parts is to be considered. Deviation from critical dimensions can adversely affect the performance of a safety valve...
Trillium Flow Technologies warrants that its products (including performance) and work will meet the specifications of the customer’s Purchase Order. If any issue arises whilst operating the product, the customer should inform Trillium Flow Technologies as quickly as possible. A return to the original plant should then be considered in order for Trillium Flow Technologies to inspect the product.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 4 TERMINOLOGY For the purpose of this manual, the following abbreviations, definitions and terms apply ACCUMULATION The pressure increase over the maximum allowable working pressure of the vessel, expressed in pressure units or as a percentage of maximum allowable working pressure (MAWP) or design pressure.
It is important that all points of advice are followed closely and are implemented by suitably qualified personnel. Trillium Flow Technologies disclaims all responsibility for maintenance operations which may be performed by persons who are either not suitably qualified or are not considered to be an accepted part the Trillium Flow Technologies organisation. 5.2 IDENTIFICATION PLATE The data shown on the identification plate (figure 1) should be referenced with all requests for work, or for the supply of spare parts.
• Quick closing (no damping effect when reseating) The adjustment range of the spring must be within ± 5 % of the nominal value Spring data should be obtained from Trillium Flow Technologies Sarasin-RSBD Aftersales Department. When requesting information, please quote the serial number which is shown on the valve identification plate. Without this number, it may not be possible to identify the original valve.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 5.4 STORAGE ATTENTION ATTENTION Never lift the valve Make sure the valve is not horizontally, or hook to the dropped and does not receive lifting lever or the spring. strikes. Always lift by using the lifting eyes or sling.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 6 STARFLOW BASICS 6.1 DESCRIPTION Description STARFLOW RANGE • Certified ASME Section VIII Div. 1 (stamp UV) • Sizes: 1" x 2" to 12" x 12" x 12" (dual outlet) • API STD 526 orifices from D to T •...
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 6.2 FEATURES AND NOMENCLATURES Body design in accordance with ASME B16.34 • ASME B&PV Code section VIII div I design o 10% overpressure o Adjustable blowdown in between 7% (gas) and 20% (liquid) • Full nozzle design •...
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE Part SPARE Part Name PARTS N° Body Bonnet Nozzle Adjus�ng ring Guide Disc Spindle Adjus�ng screw Adjus�ng screw locknut Retaining ring Balanced Bellows Adjus�ng ring screw Bonnet stud Bellows plate Body/bonnet gasket Bonnet/cap gasket Adjus�ng ring screw gasket Spring washers (upper &...
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 7 INSTALLATION 7.1 GENERAL DANGER WARNING CAUTION CAUTION Be aware that the Never face the outlet of a Protect against high noise Helmets and gloves must environment might be valve when it is levels which occur during be worn to prevent any extremely hot.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 7.3 OUTLET PIPING The safety valve must not support either the weight or the installation stresses of the outlet piping. The backpressure should be reduced by using outlet piping with a nominal diameter at least equal to the nominal diameter of the safety valve outlet flange, together with large radius elbow.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 7.6 RECOMMENDATIONS • The safety relief valve must always be installed in the vertical position. • The safety relief valve must be subjected to no stress whatsoever from piping. • The outlet reaction force requires the use of reinforcement on the inlet piping connections, to support dynamic loading due to the outlet.
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE DA (mm) DB (mm) DC (mm) It is necessary to use a torque wrench to tighten the inlet and outlet flange bolting. A check should be made that the gasket is centered on the flange Tighten to 30% of the nominal torque according to the following figures: FIGURE 5 FIGURE 4...
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 8 MAINTENANCE DANGER CAUTION CAUTION Never face the outlet of a Any person who is Helmets and gloves must valve when it is working on the valve be worn to prevent any discharging as this may should be aware of any injures while operating or result in serious personal...
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 8.1 DISASSEMBLY • Remove the lifting device, where applicable. • Remove the cap (4). • Unscrew the lock nut (15) and then unscrew the adjustment screw (14) until it is no longer compressing the spring. To facilitate subsequent pre -adjustment of the safety relief valve, mark the po sition of the adjustment screw (14).
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE • Unscrew nut (50) and take off bonnet stud (35) • Remove the bonnet (2), the bearing (104) (if there’s one) the spring and washers (46-45) and the stem (12 ). www.trilliumflow.com...
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE • Check that the spring remains cylindrical by rolling it on a flat surface. If the spring is distorted or shows signs of corrosion, it should be replaced. • For safety relief valves without bellows, remove the guide (9) and the as sembly disc / disc -holder (11- 56). •...
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Any machining must be subject to the tolerances defined by Trillium Flow Technologies & Industrial. Any machining subsequently outside tolerances will not give correct operation or performance. The Trillium Flow Technologies & Industrial Sales Department remains at your disposal for any other information you may require concerning tolerances.
This operation requires specific skills and experience and may be carried out only by qualified personnel. If such essential skills are not available, the valve should be returned to Trillium Flow Technologies Sarasin-RSBD or one of its identified...
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE • Disc • Use the disc lapping block Laid down flat on the work table • Cover it with a slight coat of lapping paste • Hold firmly then apply the bottom face of the valve disc (seat) •...
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE NOZZLES AND DISCS MAXIMUM REPAIR DIMENSIONS The maximum repair dimension must not go below 0.1 mm for all orifices. If the repair dimension is out of the tolerance, the disc or nozzle must be replaced. www.trilliumflow.com...
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 8.3 ASSEMBLY 8.3.1 RECOMMENDATIONS The safety relief valve should be reassembled with a set of new gaskets. Parts must be absolutely clean before assembly. Trim parts: nozzle, disc, disc -holder, guide and adjusting ring must be thoroughly degreased and dried before reassembly. Check that the re are no burrs on these parts.
If the safety valve is adjusted in cold condition, the cold test pressure will be the set pressure multiplied by the correction factor of table 2 p30. NOTE: For these tests, it is recommended that the fluid used be the same as that used by Trillium Flow Technologies &...
• Using the first method, the system pressure is increased until the popping point of the safety valves is reached. This method allows both verification of the set pressure and clarification of the blowdown. • For the second method, the Trillium Flow Technologies online testing device is used to deter mine the valve’s opening pressure at the normal system operating pressure.
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• To decrease the set pressure, screw the set screw upwards. The set pressure adjustment must not be above ± 5 % of the original nameplate set pressure. Any adjustment beyond this limit, please consult Trillium Flow Technologies so that we may check the possibility. Once the adjustment is acceptable, screw the locknut (15) into place.
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE SOUPAPE TYPE STARFLOW NOMBRE DE CRANS / NUMBER OF NOTCHES ORIFICES / OPENINGS VAPEUR * LIQUIDE STEAM * LIQUID *: May be adjusted in-situ. - For set pressure higher than 5 bar, the ring down to maximum. - For set pressure lower than 5 bar, get the ring down to 5 notches.
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SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 9.2.4 TIGHTNESS CHECK USING GAS Safety relief valve tightness is checked in compliance with the requirements of API Standard 527. The safety relief valve is connected to a reservoir with sufficient volume to enable clean safety relief valve opening. The proper pressure gauge is before hand controlled, and selected so that the graduation area used is between ¼...
9.4 CALIBRATION CHECK WITH ONLINE TESTING DEVICE It is sometimes required to check for the calibration of the valve at the commissioning stage or periodically. Such activity can be achieved using a specific online testing electronic device. Trillium Flow Technologies can arrange to perform such activity.
Seizing possibly due to Change the disc -holder and the guide chattering The disc does not Upstream capacity lower than Contact Trillium Flow Technologies to find the possible alternat go to th e rated lift the rated valve capacity according your application (smaller valve, modulating POPRV, etc …)
Such work must be carried out by a skilled technician. The Trillium Flow Technologies Group offers trainings and education programmes to cover all areas of maintenance and repair. Please consult your nearest Trillium Flow Technologies representative for more details.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE 14 GENUINE PARTS The use of spare parts which are not obtained from a genuine Trillium Flow Technologies source or a Trillium Flow Technologies accredited company exposes product, plant and personnel to high risk. • Sarasin-RSBD parts only are designed and produced to be used in Sarasin-RSBD valve designs.
SARASIN-RSBD STARFLOW SAFETY RELIEF VALVE • Starflow Model Coding Select the correct model number and designate the 15 CODIFICATION applicable options or accessories when ordering STARFLOW valves. • Model code system J - M Position 11) Special Nothing Nothing special Position Z Special device or requirement...
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