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Pair of soldering gate valves

Pair of soldering gate valves

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Gate Valve
Describe
Product Usage
 
The welding gate valve is widely used in petrochemical, thermal power plants and other oil products, water vapor pipelines to open or cut off the medium in the pipeline.
 
Features
 
1. Compact structure, reasonable design, good valve rigidity, smooth passage, small flow coefficient
 
2, the sealing surface is made of stainless steel and hard alloy, and has a long service life.
 
3, using flexible graphite filler, reliable sealing, light and flexible operation
 
4, the driving mode is manual, pneumatic, electric, gear transmission
 
5, the structural form is elastic wedge type single gate, rigid wedge type single gate double gate type
 
Executive standard
 
Design specification: GB/T 12234
 
Structure length: GB/T 12221
 
Test and inspection: JB/T 9092
 
Pressure-temperature: GB/T 9131
 
Product identification: GB/T 12220
 
Performance parameter
 

Nominal pressure PN (MPa)

case

Test pressure (MPa)

Upper seal

Seal (liquid)

Sealed (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

Housing material

Applicable medium

Applicable temperature (°C)

Carbon steel (type C)

Water, steam, oil

≤425

Chrome nickel titanium steel (P type)

Nitric acid

≤200

Chrome nickel molybdenum titanium steel (R type)

Acetic acid

≤200

Chrome molybdenum steel (type I)

Water, steam, oil

≤550

 

Main part material

Valve body, bonnet

Valve plate, valve seat

Valve stem

Stem nut

filler

Hand wheel

Carbon steelHigh quality carbon steel + hard alloy or stainless steel

 

Chrome stainless steel

Aluminum bronze

Graphite asbestos packing

Malleable cast iron

Chrome nickel titanium steel

Stainless steel, stainless steel + hard alloy

Chrome nickel titanium stainless steel

Aluminum bronze

PTFE

Malleable cast iron

Chrome nickel molybdenum titanium steel

Stainless steel, stainless steel + hard alloy

Chrome nickel titanium stainless steel

Aluminum bronze

PTFE

Malleable cast iron

Chrome-molybdenum steel

Alloy steel + hard alloy

Chrome-molybdenum steel

Aluminum bronze

Flexible asbestos

Malleable cast iron

 

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