Supply of Gate Valve
Reference: SJG1305P20 5/4/2019, Location: Asia
Category: Gate Valves
Scope of Work
The company announces its need for supply of gate valve.
The instruments to be supplied are as follows: -
- Item 001 Qty=10 of 2'' NB valve, 600 class,Hand wheel operated, through conduit, full bore, rising stem gate valve complete with necessary companion flange and RTJ gasket and stud, bolts and nuts as per API 6D.
1. Gate Valve, hand wheel operated, 50.8 mm (2") NB, ANSI 600 Class, full bore, on- rising stem, bolted bonnet, double disc parallel expandable gate with Parallel seating arrangements, RTJ, Flanged end, complete with weld neck type RTJ companion flanges as per ASME B 16.5, ring joint gasket, stud and nuts.The valve should have back seating arrangement. Manufacturing and inspection standards of the Valve should be as per API 6D.
- Item 002 Qty=5 of Hand wheel operated API 6D, through conduit, Rising Stem Gate Valve complete with necessary companion flanges and RTJ gasket and stud, bolts & nuts etc.
Size : 76.2 mm NB (3")
Rating : ANSI 600 class complete with companion flanges and necessary ring joint gaskets and stud bolts & nuts etc. (as per specification), suitable to pass pigs, scrapers & spheres, for oil field (sweet) services, double disc / slab, parallel sliding gate, back seating arrangement to enable replacing the stuffing box under pressure, rising stem type with hand wheel on vertical axis. Both ends flanged as per ANSI B-16.5 with RTJ gasket. Valves shall be provided with pressure relief fittings and thrust bearing in the yoke for reducing torque. Face to face dimension as per ANSI B-16.10 valve testing as per API specifications 6D. The valves to be supplied with necessary companion flanges, RTJ gasket, Stud & Nuts etc.
Material of Construction :
a) Body & Bonnet : Cast carbon Steel (ASTM A-216, Gr. WCB). The casting must be of radiographic quality.
b) Gate & segment : AISI 410 510 S/S Nitrohardened, with HF-7 Molybdenum Disulfide coating).
c) Stem : AISI 410 S/S with HF-7 (Molybdenum Disulfide coating) ASTM A182 Gr.6 Fa
d) Seats : AISI 410 S/S, Nitrohardened / ASTM A 182 Gr. F 6a with PTFE insert
e) Back Seat Bush : AISI 410 S/S.
f) Handwheel : Cast Carbon Steel (ASTM A-216 Gr. WCB)
g) Gland packing : Chevron Rings with injectable Teflon Filament.
h) Gland Nut : AISI 410.
i) Yoke : NI-Resist
j) Bonnet Stud : ASTM A 193 Gr. B7.
k) Bonnet Nut : ASTM A 194 Gr. 2H.
l) Spring : Inconel - X750.
- Item 003 Qty=20 of Hand wheel operated API 6D, through conduit, Rising Stem Gate Valve complete with necessary companion flanges and RTJ gasket and stud, bolts & nuts etc.
Size : 101.6 mm NB (4")
Rating : ANSI 600 class
Gate valve, full opening through conduit design as per figure no. 1 & 2 illustrated in API 6D specification, 22nd Edition (or Latest edition) complete with companion flanges and necessary ring joint gaskets and stud bolts & nuts etc. (as per specification), suitable to pass pigs, scrapers & spheres, for oil field (sweet) services, double disc / slab, parallel sliding gate, back seating arrangement to enable replacing the stuffing box under pressure, rising stem type with hand wheel on vertical axis. Both ends flanged as per ANSI B-16.5 with RTJ gasket. Valves shall be provided with pressure relief fittings and thrust bearing in the yoke for reducing torque. Face to face dimension as per ANSI B-16.10 valve testing as per API specifications 6D. The valves to be supplied with necessary companion flanges, RTJ gasket, Stud & Nuts etc. Material of Construction :
a) Body & Bonnet : Cast carbon Steel (ASTM A-216, Gr. WCB). The casting must be of radiographic quality.
b) Gate & segment : AISI 410 510 S/S Nitrohardened, with HF-7 Molybdenum Disulfide coating).
c) Stem : AISI 410 S/S with HF-7 (Molybdenum Disulfide coating) ASTM A182 Gr.6 Fa
d) Seats : AISI 410 S/S, Nitrohardened / ASTM A 182 Gr. F 6a with PTFE insert
e) Back Seat Bush : AISI 410 S/S.
f) Handwheel : Cast Carbon Steel (ASTM A-216 Gr. WCB)
g) Gland packing : Chevron Rings with injectable Teflon Filament.
h) Gland Nut : AISI 410.
i) Yoke : NI-Resist
j) Bonnet Stud : ASTM A 193 Gr. B7.
k) Bonnet Nut : ASTM A 194 Gr. 2H.
l) Spring : Inconel - X750.
- Item 004 Qty=9 of 6inch(150mm) NB, ANSI 900 CLASS, API6D GATE VALVE.-Full opening through conduit design as per figure no. 1 & 2 illustrated in API 6D complete with companion flanges and necessary ring joint gaskets(for above 300 class) and stud bolts & nuts etc. (as per specification), suitable to pass pigs, scrapers & spheres, for gas field with high CO2, double disc / slab, parallel sliding gate, back seating arrangement to enable replacing the stuffing box under pressure, rising stem type with hand wheel on vertical axis. Both ends flanged as per ANSI B-16.5 with raised face / RTJ (for above 300 class valves). Valves shall be provided with pressure relief fittings and thrust bearing in the yoke for reducing torque. Face to face dimension as per ANSI B-16.10 valve testing as per API specifications 6D. The valves to be supplied with necessary Stud & Nuts etc.
Material of construction:
a) Body & Bonnet: Cast carbon Steel (ASTM A-216, Gr. WCB). The casting must be of radiographic quality.
b) Gate & segment: AISI 316 510 S/S Nitrohardened, with HF-7
c) Gland packing: Chevron Rings with injectable Teflon Filament.
d) Gland Nut: AISI 410.
e) Yoke: NI-Resist
f) Bonnet Stud: ASTM A 193 Gr. B7. Bonnet Nut : ASTM A 194 Gr. 2H.
g) Spring: Inconel - X750
h) Gate and Seat Ring material should be AISI 316
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