the valve is in a liquid system, to control the direction of liquid, pressure, flow rate of the machine equipment is to make the threading pipe and mechanical equipment in the chemical, Liquid, gas, powder) Liquidity or stop and can control the flow of machinery and equipment, the valve is an important automatic control system of liquid delivery system.

operation process of well-prepared

operation process before the valve, use heart to reading instructions. Operation process must be clear gas injection, check valves open and close logo should be paid attention to. Check valve appearance, whether the valve is damp, if there is a wet dry processing to be made; If found to have other difficult to dispose of, can't common problem operation process. If it is stopped for 3 months or more pneumatic valves, shall examine the clutch, before the start of the position clear analog stick in hand pull, check the motor cable sheath, into lines and electrical equipment.

the appropriate operation process of hand type valve

hand type valve is to use range of the valve and its rocker or analog stick, is made in accordance with the general human resources management, considering the tensile strength to convex and essential to switch off the power. So you can't use long long rod rod or spanner to board. Some people habitually use spanner, should pay strict attention to, open the valve should be smooth, hard to avoid too hard and cause the opening and closing valves, force should be smooth, can not be destructive. Some destructive opening and closing of the high pressure Industrial Valves the prefabricated have considering to come to this kind of impact with the general valve can't wait.

when the valve is fully open, rocker flip should be small, the inch thread right in the middle, loose to prevent harm. For non-rising stem valves, remember to open a full and full closed when the high pressure valve position, avoid open all hit top dead center. If everything is normal and beneficial to check the full close. If the valves do fall off, or right in the middle embedded in sealing valve heart very large smudgy, all closed when the high pressure valve position is required to change. convex or damage to the valve rocker arm.

open valve identification: globe valves, butterfly valves, plug valves, high pressure valve and export vertical wall of the groove excavation, indicating that the valve in full open position; When the high pressure valve on the left or to the right turn 90. , and export the vertical groove excavation, indicating that the valve in all the off position. Some globe valves, butterfly valves, plug valves for open to wrench and export a vertical plane, vertical to turn it off. Tee, four-way valve operation process should be according to open, turn off, a sign of commutation. After the operation should take activities under the analog stick.

the appropriate operation process of the valve

the valve before installing experienced suppression test, the symmetry. operation for a long time, clerk, operation process should pay attention to check the valve and check, avoid valve import and export, check the valve seal, use hand lever up plate valve, open a period of time, between drainage in addition to stains, check valve of coordination.

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