Knowledge of pneumatic valve pneumatic brake valve (1) (2) the quality characteristics

general requirements for pneumatic pneumatic valves, pneumatic pneumatic valve specifications and categories, should accord with the requirement of pipe design documents. Pneumatic pneumatic valve type shall be marked according to gb code requirements. If the enterprise standards, should indicate the type of relevant specification. Pneumatic pneumatic valve working pressure, the requirement of pipe or work pressure, without affecting the price under the premise of pneumatic valve can withstand work pressure should be greater than pipeline of actual work; Pneumatic pneumatic valve closed condition should be able to withstand any side. Times the working pressure pneumatic valve value without leakage; Pneumatic valve open conditions, the body should be able to withstand 2 times the work pressure of the pneumatic valve requirements. The operation of the pneumatic valve pneumatic technology: the open-close direction of pneumatic pneumatic valve operation, all should be clockwise to shut down. Because pipe network in pneumatic pneumatic valve, often is the artificial opening and closing, opening and closing of revolution shoulds not be too much, is the large diameter pneumatic valves should also be within - turn. In order to facilitate a person's opening and closing operation, under the plumber pressure conditions, appropriate for N - open-close torque m。 Pneumatic air valve opening and closing operation side should be square tenon, standard and size, and face to the ground, so that people can be directly from the ground. Pneumatic valve does not apply to the underground pipe network with roulette. Pneumatic pneumatic valve opening and closing degree of display panel (1) pneumatic 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 pneumatic valve buried deep, operating mechanism and the display panel from the ground or greater distance. M, shall 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 pneumatic valve opening and closing operation in network, is well under the homework. Pneumatic performance test of pneumatic valves, pneumatic valves one batch manufacturing to a specification, should appoint the following performance tests: (1) pneumatic valve open-close torque under working pressure conditions; (2) under the working pressure condition, can guarantee the pneumatic valve closed tight continuous opening and closing times; (3) pneumatic flow resistance coefficient of valve in the pipeline condition detection. Pneumatic valves should undertake the following inspection before they go out: (1) pneumatic valve in open conditions, the pneumatic valve body shall be double pneumatic valve working pressure value internal pressure test; (2) pneumatic valve closed condition, two side respectively. Times the working pressure pneumatic valve value, no leakage; But the metal seal butterfly pneumatic valve, the leakage value is not greater than the relevant requirements. 。 Pneumatic pneumatic valve pneumatic valve body (internal and external anti-corrosion (1) Including variable speed drive cabinet inside and outside, should first deoxidization blasting derusting, strive for electrostatic spraying powder, non-toxic epoxy resin in thickness. Mm and above. Oversize pneumatic valve electrostatic spraying non-toxic epoxy resin are in trouble, should also be similar non-toxic epoxy paint brush, spraying. Pneumatic valve plate (2) pneumatic valve body and internal parts require comprehensive anti-corrosion, on the one hand, soaking in the water will not rust, do not produce electrochemical corrosion between two metals; Two aspects of smooth surface reduce water resistance.
YAZE( Pneumatic company's main products: pneumatic pneumatic valve pneumatic ball valve pneumatic butterfly valve pneumatic actuator