forged integral flange swing check valve

For 4" andsmaller API 602 Gate Globe and Check Valves, forged steel valves areintroduced. Compared with castings, forged valve bodies offer the advantages ofmore uniform structure, greater density, higher strength integrity, enhanceddimensional characteristics and closer dimensional tolerances.

The design ofAPI 602 forged steel GGC valves are also various: Full port, conventional port/ reduced port; bolt bonnet, welded bonnet and pressure seal bonnet; socketweld (SW), threaded, butt welded (BW) and flanged end. Special designs includebellows seal gate valve, cryogenic gate valve to -196C, extended body gatevalve, per customers' requirements.

Standard:
Basic Design: API 602, ASME B16.34, BS5352
Face to Face: ASME B16.10, EN 558, Manufacturer’s standard
Connecting End: ASME B1.20.1, ASME B16.11, ASME B16.25, ASME B16.5, EN 1092
Pressure Test: API598, EN 12266

Design Feature:
Outside Screw & Yoke ( OS&Y)

Integralbackseat

Solid wedge,Plug Disc Glob, Piston Check, Swing Check
Full port or conventional port (Regular Port)
Bolted Bonnet with spiral-wound gasket

Welded Bonnet orPressure Seal Bonnet
Socket Weld (SW), Butt Weld (BW), NPT, BSP Threaded End

Self aligningtwo-piece gland

The Forgings areprecision machined for high performance

Sizes: 1/2" - 4" (DN12 - DN100)
Pressure Class: Class 150 - Class 2500 or PN 16 - PN 420

Material:

Body: A105, LF2,F11, F22, F5, F304, F304L, F316, F316L, etc.
Trim: Trim 1, trim 2, trim 8, trim 5, etc. according to table 8 API 600

Operation:

Handwheel

Optional:

Stem Extension, Y-Pattern

Angle Globe Valve, Locking Device

NACE MR 01-75

Packing: Graphite + Inconel Wire

100mm welded nipple