Pneumatic Fixed Type Ball Valve
Summary:
Pneumatic fixed type ball valve is generally flange connection, and the ball is fixed. It adopts the upper and lower stem fixed spool (shaft support) and movable seal seat design. When closed, under the action of medium pressure, the ball will not produce displacement, and is more stable operation,. It is often used for high pressure and large diameter of various pipelines. Pneumatic fixed ball valve is usually connected with the ball on the upper and lower axis, and is equipped with rolling bearings or sliding bearings to reduce the opening and closing of the journal friction force, and reduce the operating torque.
| Technical parameters |
| Nominal Diameter |
DN25-600mm |
| Nominal Perssure |
PN1.6MPa;2.5MPa;4.0MPa;6.4MPa |
| Type of Connection |
Flange |
| Driving Type |
Pneumatic |
| Working Temperature |
-40~+425ºC |
| Body Material |
Carbon steel(WCB),Stainless steel(CF8,CF83,CF3,CF3M) |
| Seat Material |
PTFE,H,Y |
| Mode of Action |
Single action(spring return),Double Action(normal open&normal close) |
| Control Type |
Adjust type; On-off type |
| Accessory |
Solenoid valve, positioner, limit switch,
manual mechanism |
| Application range |
Petrochemical, gas equipment, electric equipment, environmental protection water treatment, etc. |
| Features |
It can be used in all kinds of pipelines with high pressure or large diameter |
| Optional functions |
| Driving Type |
Compressed air (with handwheel) |
| Pressure |
0.4-0.7MPa |
| Air connection |
G1/4"; G1/8"; G3/8"; G1/2" |
| Environment temperature |
-30-+70ºC |
| Type of action |
Single action; double action |
| Optional accessory |
Positioner, solenoid valve, air filter pressure reducer, position retaining valve, limit switch, transmitter, handwheel mechanism, etc. |
| The Specification of Body |
| Body Type |
Two Stage Cast Body |
| Nominal Diameter |
DN50~1000mm |
| Nominal Pressure |
PN1.6,2.5,4.0,6.4,10.0 MPa;ANSI 150 300 600 900 LB;JIS 10 20 30 40 K |
| Connection |
Flange Connection |
| Flange Standard |
JIS,ANSI,GB,JB,HG, etc. |
| Bonnet Type |
Integrated |
| Gland Type |
Bolted type |
| Packing Material |
V-type PTFE packing,Teflon impregnated asbestos packing,Asbest gland packing,Graphite packing |
| Materials for Main Parts |
| 1 |
Seat |
WCB,CF8,CF8M,CF3M |
| 2 |
Left body |
WCB,CF8,CF8M,CF3M |
| 3 |
Valve spindle |
2Cr13,304,316,316L |
| 4 |
Right boay |
WCB,CF8,CF8M,CF3M |
| 5 |
Ball |
2Cr13,304,316,316L |
| 6 |
O-ring |
PTFE,PPL,304,316,316L |
| 7 |
Spring |
65Mn,Stainless Steel |
| 8 |
Pin |
25,35,45 |
| 9 |
Valve spindle |
2Cr13,304,316,316L |
| 10 |
Stand |
WCB,CF8,CF8M,CF3M |
| 11 |
Gland |
WCB,CF8,CF8M,CF3M |
| 12 |
Actuator |
Provide configuration according to customer requirement. |
| Main Performance Spcification |
| Test Pressure(MPa) |
Nominal Pressure(MPa) |
Pressure Stage(class) |
JIS(K) |
| 1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
150 |
300 |
600 |
10K |
20K |
| Strength Test |
2.4 |
3.75 |
6.0 |
9.6 |
15.0 |
3.0 |
7.5 |
16.5 |
2.4 |
3.8 |
| Sealing Test |
1.76 |
2.75 |
4.4 |
7.04 |
11.0 |
2.2 |
5.5 |
12.1 |
1.5 |
2.8 |
| Air Tight Test |
0.4~0.7MPa |
Company Introduction:
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
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