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Gate Valve with Pneumatic Actuator

  • Product Name:  Gate Valve with Pneumatic Actuator
  • Product Details:  Gate Valve with Pneumatic Actuator

Gate Valve with Pneumatic Actuator
Gate valve with pneumatic actuator is a kind of low trestle rising-stem gate valve, with pneumatic actuator(namely double cylinder with buffer mechanism), manual actuator and its protective mechanism(namely manual, locked pneumatic and manual conversion device ). It has double cylinder structure, doubling its lifting force compared with single cylinder, which solve the problem thoroughly of some single cylinder wedged in the body tightly. It also has buffer mechanism, to slow the attrition caused by disk sealing surface and body sealing surface when valve is closed and piston is down to impacting, and to avoid valve plate stuck phenomenon. In order to fit the user to achieve automatic operation, in addition to supply the series, we can also provide cylinder block with stand individually to help users to have a large scales of modifications of varied manual valves and fit Double cylinder pneumatic actuator part in the body lid, namely constitute a duplex type pneumatic - manual gate valves. Because of its advanced technology, reliable performance, convenient operation and maintenance, it is widely used in petroleum, chemical industry, metallurgy, electric power, Marine and other departments as pipeline actuator to convey gas and liquid medium.

Specifications:
Working temperature: 425 ℃) Pressure environment 150 lb - 600 lb (Mpa) Applicable medium: air, water, steam, oil and nitric acid, acetic acid and other corrosive fluid Nominal diameter: 50 - 800 (mm) Material: carbon steel, Connection form: flange socket Application: petroleum, chemical industry, metallurgy, electric power, ocean shipping Standards: Design standard is according to DIN, ANSI/BS/JIS/EN are also available upon request.

Components/Materials:


Pneumatic actuators technical parameters
Valve body’s technical parameters
Type
Double-acting piston,
spring return type
Nominal diameter:
DN15-300mm
Air pressure
Double-acting2-8bar/Single-actin:4-8bar
Nominal pressure
1.6.2.5.4.0MPa etc
Output torque:
Double-acting:
4N·M-10560N·M
Valve shaft material
2Crl3
Single-actin:
7N·M-2668N·M
Valve body material
 
WCB cast iron
Working tempreture:
Normal temperature: -29℃-80℃
(o type ring nitrile rubber)
Valve plate material
A105
High tempreture: -29℃-160℃
(o type ring fluorine rubber)
Seat seal
Stainless steel
Actuation range:
0-100mm
Structural form
Direct connection
Interface thread:
SC60-SC200    G1/8″
tempreture
-29℃-425℃
SC260-SC450/350   G1/4″
Applicable medium
Water, oil, steam, etc
Valve position signal:
Positioner: 4-20mA /Reply device: open all signal
characters
Widely used,
overall low cost,
large flow,
small flow resistance

Performance Data:


DN
150Lb raised-face flange(RF)        Dimensions(mm)
(kg) Weight
mm
in
L
D
D1
D2
b
n-φd
H
D0
23 45 50 63 89 108 171 263 346 488 621
50
2
178
152
120.7
92
19.0
4-19
323
150
65
21/2
190.5
178
139.7
105
22.4
4-19
347
180
80
3
230
190
152.4
127
24
4-19
383
200
100
4
229
229
190.5
157
24
8-19
457
200
125
5
254
254
216
186
24
8-22.5
632
250
150
6
267
279
241.5
216
25.4
8-22.5
635
250
200
8
292
343
298.5
270
28.4
8-22.5
762
280
250
10
330
406
362
324
30.2
12-25.4
892
300
300
12
356
483
431.8
381
32
12-25.4
1080
350
350
14
381
533
476.3
413
35
12-29
1295
350
400
16
406
597
539.8
470
36.6
16-29
1435
400


Note:

Other standards available. Order instructions:
1, Pneumatic actuator type:double-acting,single acting.
2, Medium types(water,oil.,gas etc), temperature and pressure requirements should be noted.
3, Required accessories: solenoid valve, positioning device, signal feedback, Air Units, manual mechanism should be noted.
4, Seal form, the connection mode(flanged,socked etc)should be noted.