Pneumatic concentric Butterfly Valve with 3 position actuator

Product: Pneumatic concentric butterfly Valve with 3 position actuator

Introduction.

Pneumatic concentric butterfly valve with 3 position actuator is a butterfly valve that can open and close twice between 0° and 90°. Pneumatic actuation is mainly composed of 3 position pneumatic actuator, two or three solenoid valves and related accessories. Different power supply modes of the solenoid valve can realize the functions of full opening, half opening and closing of the valve, so as to achieve the control of the flow in the pipeline.

How the actuator works

position 1 (middle position)

Air source pressure enters port 2 and port D at the same time, air is discharged from port 4 and port C, port 2 moves as an internal piston, and port D is limited by the auxiliary piston push rod to limit the internal piston to be positioned at a predetermined intermediate position.

Position 2 (full open position)

The air source pressure enters port 2 and port C at the same time, the air is discharged from port 4 and port D, and the internal piston of port 2 continues to move.

Position 3 (full closed position)

Air source pressure enters port 4, air is discharged from port 2, and the internal piston moves to the middle direction to reach the fully closed position. 0-45-90 spring-return models are available. When the air is cut off or the air supply fails, the internal piston is forced to return to the fully closed position by the spring.

Features:

1. Unique structure and low cost;

2. Small torque and flexible use;

3. It can be installed and maintained at any position to permit flow regulation;

4. The seat sealing performance is reliable to achieve zero leakage in terms of bi-directional performance;

5. The replaceable sealing material is resistant to aging, corrosion and long service life;

6. The piston cylinder has the characteristics of large torque and fast opening speed;

7. The solenoid valve can be used to achieve perfect control of the valve;

Specification

Valve Size	DN40-DN700 , 1 1/2 '' -28''
Valve Pressure	PN 0.6 Mpa – 1.6 Mpa, Class 150
Air Supply	2.5 bars -8 bars, Max 10 bars
Stroke	90° and customized stroke
Function	On-off, flow regulation, quick opening and closing, emergency shut-down, throttling,
Suitable media	Water, oil, gas, air, particles, etc
Working temperature	-40°C to 130°C
Ambient temperature	-20°C to 90°C
Optional accessories	solenoid valve, positioner, limit switch, filter, regulator, lubricator, etc

FAQ:

1.    Q: Do you have any certification for Pneumatic concentric butterfly valve with 3 position actuator?

A: Yes, it is certified by ISO 9001 and SIL Level 3.

2.    Q: Can I get one free sample to try in my market?

A: Yes, one set of free sample is dispatched by door-to-door courier.

3,  Q: Can you customize our design and logo for Pneumatic concentric butterfly valve with 3 position actuator?

A: Yes, we can do ODM and OEM for all customers.

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