Supply Hai Qiwei safety device CGA540B valve oxygen cylinders

CGA540B valve oxygen cylinders CGA540B valve oxygen cylinders Model CGA540B product names valve oxygen cylinders for medium oxygen, air, nitrogen nominal working pressure MPa 15 Nominal diameter mm 4 mm CGA540 outlet threaded connection with the threaded cylinder mm GB8335, PZ27.8 safety device temperature or pressure MPa 21 ± 1.5 Hai Qiwei safety device on the cylinder valve oxygen cylinders Definition: oxygen cylinder valve is to control the oxygen bottle oxygen out of the valve. Construction: l oxygen valve structure made of three kinds: one is the valve type, one is the diaphragm, there is a needle type. Diaphragm valves gas house is good, but easy to damage, life is short. Therefore, the current use and needle valve valve type valve (directly through the stem seal), its wholly-structure as shown. Valve type cylinders structure of the main body, sealing washers, hand wheels, compression nut, valve reputation, switch chip, valves and safety devices and other components. In addition to the hand wheel, open and films, gaskets, the reputation I are made of brass or bronze pressing and machining made. In order to close the bottle and valve reputation combined with the valve body and the end of the oxygen bottle, processed into tapered pipe threads to screw the cylinder lying in the mouth, the outlet port of the valve body, processed into a thread shape, for Connect pressure reducer. Turn back the body outlet, equipped with safety devices. Off using oxygen when the handwheel counterclockwise swirling turn, is to open the oxygen valve. Rotate handwheel silt lever also will rotate through the switch chip to make live leopard rotate together, causing the valve up or down notice. Valve moves upward, the gas ": open the bottle to take gas from the outlet spout. Shutter pressed down, due to valve inline helpful nylon material gas doormat, so you can make the valve closed. Cylinders up and down the shutter moving in the range of 1. 5-3mm. Durability: opening and closing moments 7N.m oxygen cylinders full stroke valve open and close 8000 should be no leakage. hoist torque 10N.m pin type oxygen cylinders full stroke opening and closing 1000 should be no leakage. hoist torque 10N.m diaphragm oxygen cylinders full stroke hoist 2500 should be no leakage. tightness: high-pressure and low-pressure valve to the test, asking: 1 in 1.2 times the nominal working pressure When the valve is closed and any open, at least there should be no leakage packing 1min. 2 In 0.05MPa pressure, the valve is closed and any open, at least there should be no leakage packing 1min. pressure resistance: oxygen cylinder valve Working pressure 15MPa or 20MPa, should be able to withstand four times the nominal working pressure (69MPa or the smaller value), at least packing 5min, no permanent deformation and no leakage.