Product description
Product overview:
Zsqn pneumatic piston two position three way valve (referred to as the piston two position three way valve), is a pneumatic execution units unit in the instrument cluster. It receives the signal from the regulator, cut off and turn on or switch channel control process pipeline fluid. The product has the operating force, body design, small flow resistance, rated flow coefficient, the allowable pressure, the sealing property is good. The production process has been widely used in petroleum, chemical, metallurgy, electric power, textile and other industrial department of automatic control and remote control system.
Product features:
Zsqn pneumatic piston two position three way valve by the pneumatic piston actuator and straight trip regulating mechanism is composed of two parts, which are connected by a middle bracket. According to the regulation mechanism of the type, zsqn type pneumatic shut-off valve piston is through the sleeve valve, pneumatic piston actuator has a single function (spring return) and double (dual inlet) two. Using a single actuator, the mode of action of the machine can be divided into the air to close (horizontal pipeline is connected) and open (horizontal lines disconnected). Pneumatic shut-off valve piston a hard seal and soft seal two seal forms, respectively, suitable for different temperature and pressure.
When the signal pressure is zero, because the spring (single action only) pretightening force, so that the valve is in the initial state (open or closed). When the actuator receives the signal pressure (0.4 ~ 0.6MPa), thrust, the piston compresses the spring, drives the push rod, valve, the spool moves to the limit position, so that the valve fully open or fully closed. To achieve or line switching control between medium on, cut off the pipeline. Equipped with a solenoid valve, hand wheel, air filter regulator, quick exhaust valve, pneumatic gear and other accessories, the piston type cutting more convenient, simple fluid control valve can control automation.
The material of main parts:
The valve body, valve cover: zg230-450; zg1cr18ni9ti; zg1cr18ni12mo2ti
The valve stem, valve core: 1Cr18Ni9
Packing: V type poly four vinyl chloride
O-ring: oil resistant rubber
A compression spring: 60Si2Mn
Packing: 1Cr18Ni9 with asbestos board
Worm: 45
Rod: 2Cr13
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