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Gate valve

Stainless steel gate valve: The valve body, bonnet, gate, and gate rod are made of stainless steel. The sealing surface of the valve seat is made of PTFE, stainless steel + hard alloy or surfacing hard alloy. The packing is generally made of hard alloy, PTFE. Vinyl, asbestos graphite or flexible graphite. Nominal size DN15~DN800, working pressure 1.6MPa~20.0MPa, applicable temperature ≤200℃, suitable for nitric acid and weak corrosive medium pipeline.
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Gate valve
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【Product Usage】

Stainless steel gate valve: The valve body, bonnet, gate, and gate rod are made of stainless steel. The sealing surface of the valve seat is made of PTFE, stainless steel + hard alloy or surfacing hard alloy. The packing is generally made of hard alloy, PTFE. Vinyl, asbestos graphite or flexible graphite. Nominal size DN15~DN800, working pressure 1.6MPa~20.0MPa, applicable temperature ≤200℃, suitable for nitric acid and weak corrosive medium pipeline.

 

【Features】

1. Austenitic stainless steel is used, which has good corrosion resistance to oxidizing acid medium.

2. When the medium flows through the stainless steel gate valve, it does not change its flow direction, and the fluid resistance is small.

3. The movement direction of the gate is perpendicular to the flow direction of the medium, the opening and closing torque is small, and the opening and closing is more labor-saving.

4. The flow direction of the medium is not restricted, the flow is not disturbed, and the pressure is not reduced. The medium can flow in any direction on both sides of the gate valve to achieve the purpose of use. It is suitable for pipelines where the flow direction of the medium may change.

5. The gate is placed vertically in the valve body, and the structural length is short.

6. Good sealing performance. When fully open, the sealing surface is less eroded.

 

【Execution standard】

Design specification: GB/T 12234

Structure length: GB/T 12221

Connection flange: JB/T 79.1 etc.

Test and inspection: JB/T 9092

Pressure-Temperature: GB/T 9131

Product identification: GB/T 12220

 

【Performance parameters】

Nominal pressure  PN
(MPa)
case test pressure(MPa) upper seal
seal(liquid) seal(gas)
1.6 2.4 1.8 0.6 1.8
2.5 3.8 2.8 0.6 2.8
4.0  6.0  4.4 0.6 4.4
6.4 9.6 7.0  0.6 7.0 
10.0  15.0  11.0  0.6 11.0 
16.0  24.0  18.0  0.6 18.0 

 

【Applicable medium and applicable temperature】

shell material Applicable media proper temperature(℃)
Chromium-nickel-titanium steel (P type) Nitric acid ≤200
Chromium Nickel Molybdenum Titanium Steel(R type) Acetic acid

≤200

 

【Material of main parts】

valve body、valve cover valve plate、valve seat stem Stem Nut filler handwheel
Chromium-nickel-titanium steel Stainless steel、 stainless steel + carbide chrome-nickel-titanium stainless steel aluminum bronze Teflon malleable cast iron
Chromium Nickel Molybdenum Titanium Steel Stainless steel、stainless steel + carbide chrome-nickel-titanium stainless steel aluminum bronze Teflon malleable cast iron

 

 

 

We could not find any corresponding parameters, please add them to the properties table
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Tel:0411-86734112
Tel:0411-86735038
Tel:0411-86735010
Fax:0411-86735468

Miss Han and Miss Song:18098804580
Email:xiangrui@dl-xiangrui.com

Address: No. 12, Xinfeng street, Ganjingzi District, Dalian, Liaoning

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