FNW 4348737 Installation, Operation And Maintenance Instructions Download Page 2

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HIGH PERFORMANCE BUTTERFLY VALVE

FIGURE HPA

2

Fig. 1

 Sample nameplate

PROD. CODE:-
REF NO:-
SIZE (NPS):-
ASME BODY PR. CLASS:-
PR. AT 38°C (100°F):-
Pmax (Tallow):-
BODY/DISC:-
STEM/SEAT:-
SR. NO:-
TAG NO:-
MFG DATE:-

CHECK:

 •

Tag numbers and details of valves upon receipt.

 •

Valves thoroughly for any damages that may have occurred during transit.

 •

Condition of end protectors.

In case of any discrepancies in the above-mentioned details or discovery of any kind of damage to the valve 

upon delivery, please contact a FNW or manufacturer representative.

2.  DELIVERY

2.1  HPA Butterfly Valves are shipped with the disc in 

fully closed position for the protection of the disc.

2.2  The valve specification details are marked on the 

nameplate and valve body. A typical nameplate is 

shown in Fig. 1.

2.3  The valves are delivered with end protecting caps 

to avoid damage of internals and flange facing.

2.4  Handwheels for gear operated valves are 

packed separately in the same packing box. The 

pin is attached to the gear box shaft using an 

adhesive tape.

2.5  For lever operated valves, the hand lever is 

either assembled with the valve or shipped loose 

depending on size.

1.  SAFETY INSTRUCTIONS

Do not exceed the valve pressure-temperature 

rating limitations. 

Exceeding the pressure-temperature 

rating limitations marked on the valve may result in 

significant damage to the valve and personal injury. Users 

of these valves should ensure that the process design 

pressure-temperature is less than or equal to the rated 

pressure-temperature of the valves. If required, user 

should incorporate appropriate limiting and monitoring 

devices in the system for safe operation of the valve.

Use the valve for specified application only. 

User to 

ensure that the valve is used only for the specified 

application as agreed between the manufacturer and 

the purchaser.

Follow the safety rules and regulations. 

User must be 

aware of all the safety rules and regulations related to the 

environment in which the valve is to be used.

Do not disassemble the valve or remove it from the 

pipeline while the valve is pressurized. 

Disassembling 

or removing a pressurized valve will result in uncontrolled 

pressure release. Always isolate the relevant part of the 

pipeline, release the pressure from the valve and remove 

the media before moving the valve. Be aware of the type 

of media involved. Protect people and the environment 

from any harmful or poisonous substances. Make 

sure that no dust or dirt can enter the pipeline during 

valve maintenance.

Beware of disc movement and keep hands, tools and 

other foreign objects out of the valve opening while 

valve is actuated. 

Disconnect supply sources and 

make sure valve actuation is in “fail safe” state before 

performing any work. Failure to do this may cause 

damage and/or personal injury.

Summary of Contents for 4348737

Page 1: ...to the needs of the end user FNW has built a product offering with an innovative approach to the market and has continued to grow its product range to meet those needs If you do not see the type or s...

Page 2: ...ng limitations Exceeding the pressure temperature rating limitations marked on the valve may result in significant damage to the valve and personal injury Users of these valves should ensure that the...

Page 3: ...before the valves are stored as dry contaminants like dust sand grit etc can scratch the metal seating surfaces and the soft inserts leading to leakages on full pressure operation 3 2 2 Valves shall b...

Page 4: ...representative for assistance before installing the valve 4 1 2 Check valve for any damage and check condition of end protectors Upon discovery of any damage contact an FNW or manufacturer representa...

Page 5: ...improper alignment of the pipe and the valve during installation can lead to unbalanced tightening of the flanges which may cause excessive stress on the bolts and lead to leakage Ensure all nuts flan...

Page 6: ...hanical stoppers if required Worm gear operators are packed with grease Normally the grease is suitable for 20 C 4 F to 80 C 176 F For other applications consult the nearest FNW or manufacturer repres...

Page 7: ...vide a fire safe metal sealing Valves are tested to meet the fire safety requirements of international standards according to either API 607 CAUTION Apply gradual force on the handwheel of the gear op...

Page 8: ...ire Safe 4 Stem Soft Seat Stem Fire Seat 5 Seat Retaining Ring 6 Disc Spacer 7 Bearing Soft Seat Bearing Fire Safe 8 Wedge Pin 9 Retainer Screw 10 Packing Spacer Item Description 11 Gland Packing Soft...

Page 9: ...Safe 4 Stem Soft Seat Stem Fire Seat 5 Seat Retaining Ring 6 Disc Spacer 7 Bearing Soft Seat 8 Wedge Pin 9 Retainer Screw 10 Packing Spacer 11 Gland Packing Soft Seat 12 Gland Packing Fire Safe Item...

Page 10: ...if found loose 8 1 5 Gland nuts and bolts to be inspected and ensured that they are intact and not loosened during service Properly tighten the nuts by means of spanner or wrench if found loose Over t...

Page 11: ...o repair shop 8 5 6 Before disassembly cycle open and close the valve several times to clear it of fluid then flush with water 8 5 7 Valve shall be positioned vertically by resting body side flange on...

Page 12: ...1 Remove the bottom bearings 7 8 6 REPAIR OF COMPONENTS 8 6 1 The metallic parts should be cleaned 8 6 2 After cleaning components examine for damaged parts Ensure that there are no scoring marks on t...

Page 13: ...and set disc in closed position 8 7 17 Disc pins to be Tig spot welded after leakage testing 8 7 18 When the gear operator or hand lever or actuator is reassembled on the valve it may be necessary to...

Page 14: ...t during cycling CAUTION All equipment must be fitted only with manufacturer s original spare parts When ordering for spare parts always convey the following information size of valve sr no and mfg da...

Page 15: ...PENDIX A TECHNICAL INFORMATION A1 References Design pressure temperature ratings API 609 Butterfly Valves Lug and wafer type ASME B 16 34 Valves flanged threaded and welding ends Face to face dimensio...

Page 16: ...rties 2 Excellent chemical resistance 3 Good temperature and pressure capabilities 4 Excellent abrasion resistant Resistance to most of the chemicals and solvents Table 4 Seat temperature range and ge...

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