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Knife type Gate Valve Stainless Steel

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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  (K)Z43F(K)Z43W(K)Z43W(K)Z44F(K)244W(K)Z44W(K)Z543F(K)Z543W(K)Z543W(K)Z544F(K)Z544W(K)Z544W(K)Z643F(K)Z643W(K)Z643W(K)Z644F(K)Z644W.(K)Z644W(K)Z943F(K)Z943W(K)Z943W(K)Z944F(K)Z944W(K)Z944W
Pressure grade range PN 1.6-15.0MPa Class 150~900
Drift diameter range DN25~1000 NPS1~NPS40
Driving manner Hand wheel driving Gear driving and electric driving
Scope of application Class150-300(PN1.6-4.0) Class400(PN6.4) Class600-900(PN10.0-15.0) Class150-900
NPS1-NPS40(DN25-1000) NPS1-NPS28(DN25-700) NPS1-NPS12(DN25-300) NPS1-NPS40(DN25-1000)

Products Performance Specification

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Technical Specification

Structural reference GB API
Design standard JB/T5298 GB/T19672 API6D
ASME B16.34
Structural length Flanged GB/T 12221
GB/T19672. JB/T5298
API6D
ASME B16.10
Welded connection GB/T12221 GB/T19672
Flanged ends GB/T9113 JB/T79 ASME B16.5 MSS SP44
Butt-welding ends GB/T 12224 ASMEB16.25
Test & inspection GB/T13927 JB/T9092 API6D API598

Note: The sizes of valve connecting flange can be designed according to customer's requirement.

Major Parts Material Form

Body Bonnet Disc Stem Sealing face
Stainless steel,Carbon steel,Gray cast steel Carbons teal,Stainless steel Stainless steel Rubber,F4,Stainless steel,Hard alloy

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