groove gate open if working conditions in the middle valve plate because it is depend on both sides of the guide rail, full close mutual cooperation are inseparable, and the middle parts, valve plate and guide rail gap is big and cause vibrations. Thus, even in the low incidence of cavitation area, make the throttle valve operation for a long time, guide also can produce deformity, wear or damage, and because of the high pressure Industrial Valves is not fully touch, the touch location surface working pressure is very high, usually caused by biting the corrosion or conglutination, therefore, is not suitable for to flow monitoring. Also want to pay attention to, gate in small opening, the total flow change is big, if emergency opening and closing, the valve would result in higher working pressure sharply or negative pressure, is very close the valve of water hammer.

groove gate six big operation:

1. With handwheel or handle of gate valve, rotating the handwheel clockwise is close and the direction to open. When the valve is fully open, the handwheel reverse rotation should be 1 - 2 laps. Contain other electric actuator valve operation method should be strict according to product manuals.

2。 Under the high differential pressure valve, and half shut perishable gate half shut case, and so are not can be used to throttle valve or gate valve adjustment, one-time on or off.

3。 Contains bypass valve gate valve in the open before you open the inlet valve ( To balance out the gas pressure, reduce the open torque) 。

4。 Operation, the body should not be directly facing the seat at the top, to prevent the seat mechanical spray out to death.

5。 Power switch operation stability and hard bite symmetry, prohibited application impact force, general situation of operation can be hard, to prevent the application, production, processing and leverage new Industrial Valves operation.

6。 The handwheel ( The handle) Design scheme of the compressive strength is numerical reference torque according to the operation needs, and therefore cannot be handwheel ( The handle) As an operating the pedals and arbitrarily raise or hooking, extend the leverage or to too much increase torque spanner, effect and so on can be applied to the rope in the handwheel ( The handle) , to operation or lifting hoisting equipment or block valves.

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For details on ductile iron gate valve, see Shenzhen Mech Valve Trading Co., Ltd. at Mech Valve.
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