Pneumatic center line butterfly valve (switch type or regulating type)

NegotiableUpdate on 02/10

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Nature of the Manufacturer: Producers

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Overview

Pneumatic midline butterfly valve (switch type or regulating type) is a commonly used control valve that can be used to regulate fluid flow or perform fluid switch control. By controlling the rotation of the valve plate through pneumatic actuators, the pneumatic centerline butterfly valve can achieve reliable switch control or flow regulation functions. Its simple structure, reliable performance, and adaptability to various working conditions make it widely used in the industrial field.

Product Details

Q810-C carbon steel, Q810-B stainless steel seriesPneumatic center line butterfly valve (switch type or regulating type)

Product Features

01. Fast action speed
02. Can be installed at any angle, horizontally installed, and the cylinder valve position indicator device can be vertically upward to extend its service life
03. Can be equipped with emergency manual device (manual operating mechanism)
04. Equipped with a visual valve position indicator device
05. The medium has no viscosity or flow restrictions
06. Valve body materials: gray cast iron (code: C), ductile iron (code: Q), cast steel WCB (code: C), 304 stainless steel (code: B)
316 stainless steel (code: R), 316L stainless steel (code: L)
07. Sealing material: Ib type - Nitrile rubber (NBR, code: N)
IIb/IIc/IId type - conventional: EPDM (code: E), special requirement: IIe - fluororubber (VITON, code: V)
Type IIIa/IIIb/IIIc - Conventional: Fluoroplastic (PTFE, code: P), Special Requirement: Silicone Rubber (code: G)
08. Control mode: Q81011- Single acting normally closed Q81012- Single acting normally open Q8102- Double acting control
Q800114X - Single acting normally closed regulating type Q800124X - Single acting normally open regulating type Q80024X - Double acting regulating type
Note: X=1 is for regulating 4-20mA.DC input, no signal output (conventional) X=2 is for regulating 4-20mA.DC input and output (special requirement)

Pneumatic center line butterfly valve (switch type or regulating type)Working Principle:

Structural composition: Pneumatic centerline butterfly valves are usually composed of valve body, valve cover, valve plate (butterfly plate), valve stem, sealing ring and other components.

Switch type butterfly valve:

Switch control: When the pneumatic actuator applies a gas source signal, the air pressure inside the pneumatic actuator will cause the valve stem to move, which in turn drives the valve plate to rotate, causing the valve to open or close.

Adjustable butterfly valve:

Flow regulation: Regulating butterfly valves can control the rotation angle of the valve plate through pneumatic actuators, thereby adjusting the valve opening and achieving the regulation of fluid flow.

Working principle: The pneumatic actuator adjusts the position of the valve plate according to the control signal, causing the opening of the valve to change accordingly, thereby regulating the flow rate of the fluid.

Sealing performance: Butterfly valves use sealing rings to ensure the sealing performance of the valve, which can effectively prevent fluid leakage in the closed state.

Pneumatic actuator: The pneumatic centerline butterfly valve controls the action of the pneumatic actuator through the air source signal, achieving the function of opening or adjusting the valve.

Control system: Pneumatic centerline butterfly valves are usually connected to the control system, sending signals according to system requirements to control the opening and closing or adjustment of the valves.