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Australian Pipeline Valve - Installation, Operation and Maintenance Manual

3

WAFER PATTERN CHECK VALVES - ‘SLP’ & ‘SW’ STYLE

S A F E T Y   I N F O R M A T I O N 

The following general safety information should be taken into account in addition to the specific warnings 
and cautions specified in this manual. They are recommended precautions that must be understood and 
applied during operation and maintenance of the equipment covered in this I.O.M.

This manual provides instructions for storing, general servicing, installation and removal of valves.
APV and it’s resellers refuse any liability for damage to people, property or plant as well as loss of 
production and loss of income under any circumstances but especially if caused by: Incorrect installation 
or utilisation of the valve or if the valve installed is not fit for intended purpose.  It is the sole 
responsibility of the user to ensure the valve type and materials are correctly specified.

DURING OPERATION TAKE INTO ACCOUNT THE FOLLOWING WARNINGS:
a- The valve’s internal parts (disc/stem/hinge pin/seats/gaskets/seals, etc.) shall be handled with care 

avoiding scratches or surface damage.

b- All tools and equipment for handling the internal parts shall be soft coated, or else take care.
c- Valves can be fitted with gaskets or seals in PTFE, Buna, Viton, etc., hence high temperatures and some 

cleaning fluids may damage sealing components.

For all operations make reference to position number on part list of the applicable drawing.

To avoid injury, never attempt disassembly while there are pressures either 
upstream or downstream. Even when replacing gaskets or packings, caution is 
necessary to avoid possible injury. Disassemble with caution in the event all 
pressures are not relieved.

To prevent valve bending, damage, inefficient operation, or early maintenance 
problems, support piping on each side of the valve.

• A valve is a pressurised mechanism containing fluids under pressure and 

consequently should be handled with appropriate care.

• Valve surface temperature may be dangerously too hot or too cold for skin contact.
• Upon disassembly, attention should be paid to the possibility of releasing 

dangerous and or ignitable accumulated fluids.

• Ensure adequate ventilation is available for service.

Summary of Contents for SLP

Page 1: ...www australianpipelinevalve com au INSTALLATION OPERATION MAINTENANCE MANUAL WAFER PATTERN CHECK VALVES SLP SW STYLE...

Page 2: ...et Oilfield Products Valves Wellheads Gate Globe Check Valves Forged Steel Plug Valves Lubricated Sleeved Lined Gate Globe Check Valves Cast Steel Diamond Gear Gearboxes Flowturn Gate Globe Check Valv...

Page 3: ...aning 6 2 5 Direction of flow 6 2 6 Horizontal piping 7 2 7 Distance between single flap check valve and butterfly valve 7 2 8 Orientation of single flap wafer check valve to pump discharge 7 8 2 9 Ga...

Page 4: ...lications requirements of the service application RECEIVING INSPECTION AND HANDLING Valves should be inspected upon receipt to ensure Conformance with all purchase order requirements Correct type pres...

Page 5: ...l parts disc stem hinge pin seats gaskets seals etc shall be handled with care avoiding scratches or surface damage b All tools and equipment for handling the internal parts shall be soft coated or el...

Page 6: ...e uniflap checks SLP SERIES retainer type Light and strong Supercheck SLP SW series valves are light so line stress is reduced to a minimum Yet the installed valve assembly is more rigid than an equiv...

Page 7: ...ANSI 150 285 psi 1964 kpa ANSI 300 740 psi 5099 kpa ANSI 600 1480 psi 10197 kpa ANSI 900 2220 psi 15296 kpa ANSI 1500 3705 psi 25527 kpa TABLE E 200 psi 1378 kpa 2 0 I N S T A L L A T I O N ORIENTATI...

Page 8: ...NSTALLATION Remove protective end caps or plugs and inspect valve ends for damage to flange faces Thoroughly clean adjacent piping system to remove any foreign material that could cause damage to seat...

Page 9: ...plate of the Supercheck check valve does not touch the disc of the other valve in the open position For separating other valves such as butterfly valves a spacer spool may be required to stop the disc...

Page 10: ...n caustics are to be used to flush the line additional flushing with clean water is required The valve should be opened and closed after installation to ensure proper operating function With the line...

Page 11: ...have maintenance personnel effect repairs Flange face gasket sealing surfaces should be scraped clean avoid radial marks 5 2 REMOVING VALVE FROM PIPELINE Only one half of the stud bolts need to be rem...

Page 12: ...Place the wound spring 5 in position between the disc hinge lugs ensuring the long convex side of the spring s leg is against the disc the other end must be energised against the wall of the valve as...

Page 13: ...Diagram 5 SLP type shown but guard spring in the same manner and caution note on previous page about guarding spring during disassembly to prevent eye damage Refer to exploded view in Appendix 5 6 AS...

Page 14: ...cording to size class trim RESILIENT O RING SEAT OPTION SLP SW 1 BODY 2 DISC 1 3 HINGE PIN 4 SEAT INTEGRAL 5 SPRING 6 BUSHINGS 2 8 HINGE PIN RETAINERS 9 EYE BOLT SLP STYLE COMPONENTS 1 Integral versio...

Page 15: ...98 d 300 12 18 0 36 Not required per API598 d 0 c Not specified c 3 b Not required per API598 d 350 14 21 0 42 Not required per API598 d 0 c Not specified c 4 b Not required per API598 d 400 16 24 0 4...

Page 16: ...tact us for a prompt response Continuous development of Australian Pipeline Valve products may necessitate changes in the design or manufacture process Australian Pipeline Valve reserves the right to...

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