Q:Which direction is the valve? Which direction is it?

Ball valve: handle and Guan Daocheng 90 degrees for the pass, 180 degrees to open (ie in line with the direction of the pipe open)The gate: clockwise, counterclockwise.

Q:What does the valve stroke mean?

The distance from one position to another. Usually in the first position of the cut position, the second position is put through the position. Unless the valve has 3 positions.

Q:What is a lift rod valve?

Lever valve stem nut in the valve plate, it with the disc (hand wheel) to open the turn, its stem pull the valve head and higher than the valve disk, also known as the bar valve. It is different from the dark rod valve, dark rod valve stem nut in the valve body, when the disc rotates, the stem will not rise.

Q:How does the valve rust die?

Valve rust, and see what material, what type, the normal model iron, small, then change it directly. Large direct buy derusting lubricants, stainless steel just, then take the acid wash

Q:How to check if the gas valve is open?

There is a switch on the valve indicating that you can follow the above operation

Q:What does the ZH41 valve ZH41 mean, and what other specifications?

Is the model wrong? The correct one should be Z41HGate valve, hand flange connection name, rod type single gate, sealing surface is alloy steel

Q:What do letters represent in the QF-2 and PX-32 valve models?

This is the material code, specific check: valve code. Just OK

Q:What kind of industry does valve belong to?

Valves are machinery and industry equipment；Valve belongs to general mechanical equipment

Q:What is the difference between the valve before the pump and the valve after the pump?

Pump front valve: current limit; pump rear valve: limit pressure.Pump operating procedures: the pump must be closed before and after the valve, open the pump, slowly open the pump front valve, pump pressure normal, slowly open the pump, valve until all open. If the pump is in front and rear valves are opened, the pump is very easy to burn the motor.

Q:How are the types of valves classified?

In addition to the cylinder or hydraulic cylinder piston to drive, but also the use of pneumatic film driven, because of its small stroke and driving force, it is mainly used for regulating valves.Manual valveThe manual valve is the most basic way of driving the valve. The utility model comprises a hand wheel, a handle or a plate hand, and is driven directly and driven by a transmission mechanism two kinds. When the starting torque of the valve is large, it can be driven by gear or worm gear to achieve the purpose of omitting. Gear drive, spur gear drive and bevel gear drive. Gear reduction ratio is small, suitable for gate valve and stop valve, worm gear drive is relatively slow, suitable for cock flashing, ball valve and butterfly valve