See how the structure of the pneumatic valve operating institutions
Pneumatic valve consists of body, the body in the middle of the fluid channel, the inlet and outlet of the fluid at both ends of the channel are respectively, fluid channel is equipped with rubber hose, rubber hose with the valve body on both ends of the lining of the sealing connection, the body has a vent on the wall and external intake pipe and exhaust pipe respectively, intake pipe and exhaust pipe were installed in the control valve, inlet pipe external gas source;
A space between the body and the rubber hose and form a airtight gasbag.
Operator the open-close direction of 1, pneumatic valve operation, all should be clockwise closing.
2, as the pneumatic valve in the pipeline, often artificial opening and closing, opening and closing of revolution shoulds not be too much, is the large diameter valves also should be within 200-600 RPM.
3, in order to facilitate a person's opening and closing operation, the plumber pressure conditions, the largest open-close torque appropriate for n - 240
4, pneumatic valve opening and closing operation side shall be the square tenon, standard and size, and face to the ground, so that people can be directly from the ground.
Valves shall not apply to the underground pipe network with roulette.
5, pneumatic valve opening and closing degree of display panel (1) pneumatic valve opening and closing degree of calibration, shall be cast on or after the transformation direction of gearbox cover plate shell, face to the ground without exception, the scale line brush on phosphor powder, as a prominent;
(2) of the dial needle material under the condition of management better available stainless steel plate, or paint for steel plate, do not use the aluminum skin production;
(3) dial needle striking, fixation, once the open-close adjustment accurately, the rivet lock.
If, pneumatic valve buried deep, operating mechanism and display plate distance from the ground 1 or more.
5 m, should be equipped with facilities of extension rod, and fixed firmly in mind, so that people from the face of the earth observation and operation.
That is to say, the valve opening and closing operation in pipe network, unfavorable under operation.