WZ41H forged steel bellows gate valve

Forged steel bellows valves are available in two valve cover designs. The first is the bolt-type valve cover, according to this design form of the valve, the valve body and the valve cover are connected with bolts and nuts, and the winding gasket (304L clamp flexible graphite manufacturing) is sealed. When customers have special requirements, metal rings can also be used to connect. The second design form is welded valve cover. According to this design form of the valve, the valve body and the valve cover with thread connection, fully welded seal. Full welding of the Contrived connection may also be used when the customer has special requirements.

Bellows valve design Structural features:
Bellows valve in accordance with APl602. MSS-SP-118.B55352 and ANSI B16.34, inspection and test according to APl598. The following structures are

used according to MSS-SP-25:
self-centering platen press sleeve
bolt connection, wound gasket sealed valve cover and threaded connection, all-welded sealed valve cover
integral on the seal seat
socket in accordance with ASME B16.11
threaded end in accordance with (NPT)AMME B1.20.1 open
rod bracket (OS&Y)
valve stem with grease valve

Specification of standard material for forged steel bellows gate valves

Serial numberPart nameCS toASTMAS to ASTMSS to ASTMTypeAl05TypeA182 F22Type A182 f304(L)Type A182 F316(L)lValve bodyA105A182 F22A182 F304(L)A182 F316(L)2Valve seatA276 420A276 304A276 3040A276 316(L)3RamA276 420A276 304A276 304(L)A276 316(L)4StemA182 F6aA182 F304A182 304(L) A182 F316(L)5Bellows304304(L)316(L)6BonnetA105NA182 F22A182 F304fLlA182 F316(L)7StuffingFlexl 'ble GraphiteA276 3048Hang the bolts/nutsA193 B8 / A194 2H A193 B8 / A194 4A193 B8/A194 B A193 V8/A194 8M9Packing press jacketA276 420A182 F30410Stuffing platenA105NA182 F3041lValve stem nutA276 42012HandwheelA19713Extended setA105 A182 F22 Al 82 F304(L) A182 F316(L)14Lower drag boardA182 F304 A182 F304 A182 F304(L) Al 82 F316(L)15Upper drag boardA182 F304 A182 F304A1 82 F304(L)A182 F316(L)16ScrewsA276 420A182 F30417Lock nutA194 2HA194 4A194 8A194 8MSuitable mediaWater, steam, oil, etcWater, steam, oil, etcNitric acid, acetic acid, etcApplicable temperature-29ºC ~ 425ºC-29ºC ~ 550ºC-29ºC to 180ºC

Note: Other materials required by customers can also be used. Sealing surface material pairing is determined by customer's specified interior code. As= alloy steel: ss= stainless steel

Forged steel bellows gate valve size (mm) and weight (kg)

NPSReduced sizing3/81/2"3/4"11 1/4"1 1/2"2Full diameter 3/81/2"Three quarters of11 1/4"1 1/2"L797992111120152172H(0PEN)220220225244321321347W100100100125160160180WeightBolt type3.23.04.87.911.016.825.2Welded type3.02.84.87.09.613.520.25

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