Q:What is the shell and seal of the valve?

The general valve body (including the valve cover some points), valve seat, valve core (or valve plate, valve inside that gate), stem (or not), actuator, positioner, accessories (filter valve, solenoid valve, seal etc.).The valve pressure test (pressure test) is divided into 1. shell tests. 2. sealing test. 3. sealing testShell test: open the valve, the valve pipe inlet and outlet, (note that put the stem opening blocked or compression packing gland in the flange, import or export blocked on the left eye, inside water, usually water.) Draw water gradually into it, increase to a certain pressure, and see if there is eye leakage on the case.The seal test: open the valve, the valve pipe inlet and outlet, what are installed (on the stem seal check is to look at the stem and valve body sealing contact place is good), with top, also from the side to inside the water, or air (air to play the entire valve in water look, don't take bubble). Look at the leak between the stem and the valve.Seal test: close the valve, plug valve inlet (outlet without blocking), from the inlet valve blocked the small eyes to water or air, at the exit to see if you can come to water or air (air can not see, you have to put the valve in the water, look at the export risk not bubble.

Q:What is the function of the gear box valve? What if it doesn't work?

The body of the general gearbox is used for high and low conversion, there is a change gear, the bad will be replaced

Q:How to calculate the selection of each valve body in the pneumatic system? Determine the type of valve, work pressure, flow, and then determine the path, and then you can determine the specific model, so that right?

I don't know if you're a fluid control system or an executive system. It's a little different.From the point of view is to choose the execution system from the valve actuator, the actuator of the gas consumption and the movement determines the valve type and caliber valves only affect the flow, diameter of valve working pressure is not decided, general working pressure air system decision.

Q:The best thing is the valve body is copper, the ball is also copper? Or is a sphere good for steel? FiveWent to the building materials market, saw a lot of ball valves, spheres are white, like iron and steel. With a magnet on the suction on, some master said "can absorb the iron is easy to rust, not to live." I would like to ask 1 geothermal ball valve in the end what material good? 2, the ball valve sub cold hot water? 3 ball valve can seal? Use it as the plug of the heater, will one day leak out?Good quality valve Weixing? 1 inches of valve, 135 one, that is what the core of it?" Ball valve capable of sealing cover, it is connected with the switch can be used to do long-term, but as a direct plug welding pipe plug, or wire, wire and copper wire directly, gambling plug is how to understand this sentence? The valve will one day be made? With the wire, copper wire and wire directly, bet plug "is what?

1 Weixing valve quality is good in the industry, what is the core to ask business or your own judgment2 ball valve capable of sealing cover, it is connected with the switch can be used to do long-term, but as a direct plug welding pipe plug, or wire, wire and copper wire directly, gambling plug is how to understand this sentence?Ball valve is used to connect the two sides of the pipe, sealing is lax, that is, a little drop water, because the other side of the faucet and the like switch, sealing is lax, also nothingBut if you use it as a plug, wouldn't it be a drop of water if the seal wasn't tight?Such as directly plugged, common PPR plug, good fusion welding can also be used directly with a copper wire, wire bet, if you don't know what it is, to building materials stores, let them bring you look at the lineCopper core steel core can, steel core and the core problem is difficult to distinguish, but shoddy business for core posing as steel core, and rusted, twist does not open the valve, big losses, or suggest that you choose the better copper core

Q:How many oil ports are there on the valve body?

Three position four way solenoid valve, belonging to the working fluid system, including the installation of the valve on the electromagnet control of the four stop part, divided into two groups: installed in the valve, the valve on the same side of the power supply in parallel, the electromagnet, while opening and closing;

Q:Speed box valve above the solenoid valve generally has several points, what functions and role?

Basically 5-8, each stall with different stalls and oil pressure. It's an electrical signal, it doesn't have any special function!

Q:What are the materials used for long tube trailers and container valves?

Tank containers are generally liquid, powder, chemicals, asphalt, tank containers can also be used.

Q:What is the difference between the valve body and the valve?

The valve body is part of the valveWhich is the largest part of the valve?

Q:What is the body material of the solenoid valve?

Copper, cast iron, cast steel, 304 stainless steel, 316 stainless steel

Q:Q341F-25C DN150 ball valve outside the surface welding marks, I do not know whether it conforms to the manufacturing standards, please Tongren answer, thank you!

First of all, to determine whether the welding site after welding heat treatment. Generally, after heat treatment, there is no problem.