Zhejiang Weiguang Valve Manufacturing Co., Ltd.
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Title:Pneumatic regulating ball valve
  • Address:Yahe West Road, Kungyang Town, Pinyang County, Wenzhou City,Zhejiang Province ,China
  • Code:325400
  • Phone:0577-63883000
一、An overview of the
Pneumatic ball valve is made up of double (single) role of pneumatic piston type actuators and ball valves. It is powered by compressed air valve rod drives the valve core in the valve body rotate 90 °. At the same time with solenoid valves, limit switches and air source treatment components, realize the process line switch control of the media. It has a novel structure and professional control system design, and stomatal combination instrument, can accept the switch control signal. Suitable for gas, liquid cargo conditions containing particles suspended solids. Widely used in petroleum, chemical industry, light industry, pharmaceuticals, paper and other industrial automatic control system.
二、The characteristics of

1, ball core adopts the design of round hole for high flow capacity, the characteristics of small resistance;

2, ball core is the use of special processing technology and surface hardening treatment (or do lining fluorine handling), its smooth surface corrosion resistance, long service life;

3, the valve stem with self-lubricating materials, effective transfer sealing force, small friction coefficient, the valve torque is small, high mechanical stability, sensitivity, valve to reduce response time;

4, ball valve has simple structure, convenient maintenance.

三、The working principle of
When the pneumatic actuators after connected with gas source circuit and system, and the air into the cylinder to push the piston movement to end, thus promote the axis of rotation and the ball core rotate 90 °.
 □Pneumatic actuators at the top of the moving and visual, when the green flag to "open" sign when the valve opens.
 □Reply is light green light when the valve is in open position, and the red light when the valve is in closed position.
 □The locator adjustable valve pipe flow.
四、Main technical parameters of pneumatic actuator

Pneumatic actuators

model

QW series、AT series、AW series

Air pressure

0.4 ~ 0.7 MPa

Maximum turning Angle

90°

Letter opener

AC220V  AC110V  DC24V

Control signal

4 ~20 mA 

Control air supply

Clean, dry, non corrosive air

Working temperature

-20℃ ~ +90℃

五、The performance specification

 PN(MPa)

P(MPa)

Working temperature(℃)

Applicable medium

shell

seal

1.6

2.4

1.76

-50~500

(Working condition of different temperature, choose different material)

Water, oil, natural gas, acid and alkali, inorganic salt, etc

2.5

3.75

2.75

4.0

6.0

4.4

六、Pneumatic ball valve main parts material

Material \ code

The small pieces

The valve body

WCB(Or lining fluoride)

ZG1Cr18Ni9Ti(or lining fluoride) 

ZG0Cr18Ni12Mo2Ti(or lining fluoride) 

The ball body

2Cr13(or lining fluoride) 

ZG1Cr18Ni9Ti(or lining fluoride) 

ZG0Cr18Ni12Mo2Ti(or lining fluoride) 

The valve stem

2Cr13(or lining fluoride) 

1Cr18Ni9Ti(or lining fluoride) 

0Cr18Ni12Mo2Ti(or lining fluoride)

Sealing ring

Enhanced ptfe, para polystyrene, hard alloy steel

Fill in the material

Ptfe, flexible graphite

七、Overall dimensions

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