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Flanged Forged Steel Gate Valve

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Product Detail

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Products Design Features

Flanged ends cast steel gate valve are used to cut or connect the pipe media under nominal pressure between PN1.6-42.0MPa(Cass150~2500)working temperatures ≤ 600in oil industry chemical industry fossil-fired power plants.

The main structure features include:
1.Both design and manufacture are carried out strictly following GB/T12234AP600and AP1602. The products feature a reasonable structure. reliable seal, good performance and nice modeling.
2.Co hard alloy welded sealing surface, which is wearing resistant erosion proof, abrasion proof and long-lived.
3.The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion and abrasion resistant.
4.PN≥15.0MPa(Class900), the middle cavity usea a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
5.There is no backward sealing structure in the valve, so the sealing id reliable
6.The material of the filling and the flange size can be chosen and matched according to the applications and the requirements of the use's. That can satisfies all kinds of working requirements.

Main Parameter Of The Products

Serial models  (HsPs)Z11H(HsPs)Z11Y(Ps)Z41H(Ps)Z41Y(Ps)Z441H(Ps)Z441Y(Ps)Z541H(Ps)Z541Y(Ps)Z941H(Ps)Z941Y
Pressure grade range PN1.6-42.0MPa(Class150-2500) 
Drift diameter range DN15-1000mm(NPS1-40)
Driving manner Hand wheel driving Gear driving and electric driving
Scope of application Class150-300(PN1.6-4.0) Class400-600(PN6.4-10.0) Class900-2500(PN15.0-42.0)  NPS2-40(DN50-1000mm) 
NPS1/2-24(DN15-600mm) NPS1/2-12(DN15~300mm) NPS1/2-10(DN15~250mm)

Products Performance Specification

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Major Parts Material Form

No. Part name Material
1 Flange ASTM A105

ASTMA182-F11F22 F5F9

ASTMA182-F304 F316 F321 F304LF316L

2 Body ASTM A105

ASTM A182-F11F22F5F9

ASTM A182-F304F316F321F304LF316L

3 Seat ASTM A105

ASTMA182-F11 F22 F5F9

ASTMA182-F304F316F321F304LF316L

4 Gate Disc ASTM A105

ASTMA182-F11F22F5F9

ASTM A182-F304F316F321F304LF316L

5 Stem ASTM A182F6aASTM A182F22

ASTMA182-F304 F316F321F304LF316L

6 Gasket Graphite & stainless steel
7 Bonnet ASTM A105

ASTMA182-F11F22 F5.F9

ASTMA182-F304 F316 F321 F304LF316L

8 Bolt ASTM A193-B7A193-B8 A193-16
9 Packing Graphite
10 Packing press-sleeve ASTM A182 F6aASTM A182 F22

ASTM A182-F304F316F321F304LF316L

11 Packing gland ASTMA216-WCBASTMA217-WCBWC9C5C12 ASTMA351-CF8CF8MCF8CCF3CF3M
12 Valve stem nut Copper alloy
13 Hand wheel ASTMA47-32510 ASTMA53660-40-18

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