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Pneumatic fixed ball valve

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  • Pneumatic fixed ball valve
 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 DiameterDN25-600mm
Nominal PerssurePN1.6MPa;2.5MPa;4.0MPa;6.4MPa
Type of ConnectionFlange
Driving TypePneumatic
Working Temperature-40~+425ºC
Body MaterialCarbon steel(WCB),Stainless steel(CF8,CF83,CF3,CF3M)
Seat MaterialPTFE,H,Y
Mode of ActionSingle action(spring return),Double Action(normal open&normal close)
Control TypeAdjust type; On-off type
AccessorySolenoid valve, positioner, limit switch,
manual mechanism
Application rangePetrochemical, gas equipment, electric equipment, environmental protection water treatment, etc.
FeaturesIt can be used in all kinds of pipelines with high pressure or large diameter
Optional functions
Driving TypeCompressed air (with handwheel)
Pressure0.4-0.7MPa
Air connectionG1/4"; G1/8"; G3/8"; G1/2"
Environment temperature-30-+70ºC
Type of actionSingle action; double action
Optional accessoryPositioner, solenoid valve, air filter pressure reducer, position retaining valve, limit switch,  transmitter, handwheel mechanism, etc.
 The Specification of Body
Body TypeTwo Stage Cast Body
Nominal DiameterDN50~1000mm
Nominal PressurePN1.6,2.5,4.0,6.4,10.0 MPa;ANSI 150 300 600 900 LB;JIS 10 20 30 40 K
ConnectionFlange Connection
Flange StandardJIS,ANSI,GB,JB,HG, etc.
Bonnet TypeIntegrated
Gland TypeBolted type
Packing MaterialV-type PTFE packing,Teflon impregnated asbestos packing,Asbest gland packing,Graphite packing
Materials for Main Parts
1SeatWCB,CF8,CF8M,CF3M
2Left bodyWCB,CF8,CF8M,CF3M
3Valve spindle2Cr13,304,316,316L
4Right boayWCB,CF8,CF8M,CF3M
5Ball2Cr13,304,316,316L
6O-ringPTFE,PPL,304,316,316L
7Spring65Mn,Stainless Steel
8Pin25,35,45
9Valve spindle2Cr13,304,316,316L
10StandWCB,CF8,CF8M,CF3M
11GlandWCB,CF8,CF8M,CF3M
12ActuatorProvide configuration according to customer requirement.
Main Performance Spcification
TestPressure(MPa)Nominal Pressure(MPa)Pressure Stage(class)JIS(K)
1.62.54.06.410.015030060010K20K
Strength Test2.43.756.09.615.03.07.516.52.43.8
Sealing Test1.762.754.47.0411.02.25.512.11.52.8
Air Tight Test0.4~0.7MPa

Pneumatic Fixed Type Ball Valve (AT Series Actuator)Pneumatic Fixed Type Ball Valve (AT Series Actuator)


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