• Forged steel gate valve
  • Forged steel gate valve

Forged steel gate valve

Material of forged gate valve:  A105,LF2,F11,F22,F304,F304L,F316,F316L,F51,F321,Monel

Size of forged gate valve:  1/2inch(DN15) - 3 inch (DN80)

Pressure of forged gate valve:  150LB(PN16)-2500LB(PN420)

Connection type:  Flange(FF,RF,FM,RTJ) BW,SW,Screw

Kind of drive:   Wrench,Gear,Electric actuators and pneumatic actuators

Operating temperature :   -196℃ - 600℃

Working medium:   water, gas,oil,Sulfuric acid and hydrochloric acid

catalogue:

Forged gate,globe,check valve.pdf


Brief introduction for the API gate valve.

The open-close part name is gate,that  this forged gate valve only can fully open or fully closed, they can not adjust the flow,the gate have two sealing face and the sealing face are wedge type,the gate  solid gate type ,the forged gate valves only have small size. the biggest size up to 3"(DN80) and highest pressure can arrive to 3000LB(PN500).about the type of connection between the body and bonneet, it also have three type, one is bolt bonnet,anther is welded bonnet and the third type is pressure seal bonnet. they are use for the different pressure.



The kind of this Forged steel gate valve.

We can divided into two types according to the  type of stem, one is non-rising stem gate valve, anther is rising stem gate valve,non-rising stem gate valve is mean that the screw of stem are in the body , we don't see the stem rising or decline when we opened and closed the gate valve, rising stem gate valve is mean that the screw of the stem are out of the body,we can see the stem rising or decline when we opened and closed the gate valve .

We also can divided into two types according to structure of the gate, one type is wedge gate valve, anther type is flat gate valve,wedge gate valve is mean the sealing face of the gate is wedge type(it have angle between them),flat gate valve is mean the sealing face of the gate is parallel type,wedge gate valve must rely on exogenic action to  mechanical seal,but flat gate valve can rely on  pressure of the medium to seal. so teh wedge gate valve have the bigger market than flat gate valve.



Advantage for the gate valve

All of the gate valve are full bore,so they have the very small fluid resistance and the sealing face is very resistant to shock and wear.

The flow of medium is not restricted when valves are installed in the pipeline.they have simple structure and have the short face to face.so the price is lower than ball valve.



Matters needing attention during installation

The workers must clean up the impurities in the piping and valves before the gate valve installed on the piping line.



Forged steel gate valve

Features:

Gate Valve 800Lb

Standard Material Specifications

NO.
Part Name
CS to ASTM
AS to ASTM
SS to ASTM
Type A105
Type F22
Type F304(L)
Type F316(L)
1
Body
A105
A182 F22
A182 F304(L)
A182 F316(L)
2
Seat Ring
A276 420
A276 304
A276 304(L)
A276 316(L)
3
Wedge
A276 430&410
A182 F304
A182 F304(L)
A182 F316(L)
4
Stem
A182 F6
A182 F304
A182 F304(L)
A182 F316(L)
5
Gasket
Corrugated SS+graphite
SS+PTFE
6
Bonnet
A105
A182 F22
A182 F304(L)
A182 F316(L)
7
Bonnet Bolt
A193 B7
A193 B16
A193 B8
A193 B8M
8
Pin
A276 420
A182 F304
9
Gland
A276 410
A182 F304(L)
A182 F316(L)
10
Gland Eyebolt
A193 B7
A193 B16
A193 B8
A193 B8M
11
Gland Flange
A105
A182 F11
A182 F304(L)
A182 F316(L)
12
Gland Nut
A194 2H
A194 4
A194 8
A194 8M
13
Yoke Nut
A276 420
14
H.W.Lock Nut
A194 2H
A194 4
A194 8
A194 8M
15
Nameplate
SS
16
Handwheel
A197
17
Bearing Gasket
A473 431
18
Stem Packing
Flexible Graphite
PTFE
Suitable Medium
W.O.G.etc
W.O.G.etc
HNO3,CH2OOH etc
Suitable Temperature
-29~425
-29~550
-29~180
Note: Other materials are available upon request.

Dimensions (mm) and Weights (Kg)

NPS
Conv.
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
Full
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
L
79
79
92
111
120
120
140
178
H(OPEN)
158
158
169
197
236
246
283
330
W
100
100
100
125
160
160
180
200
Weights
Bolted
2.1
2.0
2.3
4.3
5.9
6.9
11.1
15.2
Welded
1.8
1.7
2.0
3.8
5.1
6.1
10.2
14.



Forged steel gate valvedrawing for Forged steel gate valve

Features:
Gate Valve 900Lb~1500Lb

Standard Material Specifications


NO.
Part Name
CS to ASTM
AS to ASTM
SS to ASTM
Type A105
Type F22
Type F304(L)
Type F316(L)
1
Body
A105
A182 F22
A182 F304(L)
A182 F316(L)
2
Seat Ring
A276 420
A276 304
A276 304(L)
A276 316(L)
3
Wedge
A276 430&410
A182 F304
A182 F304(L)
A182 F316(L)
4
Stem
A182 F6
A182 F304
A182 F304(L)
A182 F316(L)
5
Gasket
Corrugated SS+graphite
SS+PTFE
6
Bonnet
A105
A182 F22
A182 F304(L)
A182 F316(L)
7
Bonnet Bolt
A193 B7
A193 B16
A193 B8
A193 B8M
8
Pin
A276 420
A276 304
9
Gland
A276 410
A182 F304(L)
A182 F316(L)
10
Gland Eyebolt
A193 B7
A193 B16
A193 B8
A193 B8M
11
Gland Flange
A105
A182 F11
A182 F304(L)
A182 F316(L)
12
Gland Nut
A194 2H
A194 4
A194 8
A194 8M
13
Yoke Nut
A276 420
14
H.W.Lock Nut
A194 2H
A194 4
A194 8
A194 8M
15
Nameplate
SS
16
Handwheel
A197
17
Bearing Gasket
A473 431
18
Stem Packing
Flexible Graphite
PTFE
Suitable Medium
W.O.G.etc
W.O.G.etc
HNO3,CH3OOH etc
Suitable Temperature
-29~425
-29~550
-29~180

Dimensions (mm) and Weights (Kg)

NPS
Conv.
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
Full
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
L
92
111
111
120
120
140
178
210
H(OPRN)
169
197
197
236
246
283


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