Q:How does the valve close?

This is a relatively vague ah, like the stem ah, usable spanner clamping, clockwise rotation in the end. The handle should be closed groove and the coincidence place.

Q:What's the sewage treatment valve with?

Sewage treatment system valve requirements are not high, the use of butterfly valve is one of the most cost-effective. Butterfly valve manufacturers are many, the price is also different, as long as the right can.

Q:Hydrant valve leaks, how do you close other valves? Specific steps?

In construction, according to the design specifications, fire hydrant water supply pipe is an independent water supply system, and the water supply pipeline is separated from the water supply. In the trench into door position, need to set up a system of fire fire well, there are valves, only by finding the position of tube wells into households completed fire system diagram, in turn off the total valve can.

Q:How about leaking water pipe valve?

It depends on where the place is leaking.1, if it is household valveA, the valve and pipe connections at the leakage, in the connection, do not rub tape (the best counter clockwise direction, so that when the valve is connected, the more twisted the more tight) ;B, if the valve itself in the leak, there are ways, it is necessary to open the valve, in which to add sealed or O ring, but it is recommended to replace a more convenient.2, if it is industrial valvesA, industrial valves leaking, if not the valve itself in the leak, then in the valve and pipe connections to join the sealing ring,B, if the valve itself is leaking, it is best to return to the manufacturer for maintenance, if not convenient, then only the manufacturers to come here for maintenance.

Q:the rest are hot, the living room outside all the heating pipe valve closed, the living room heating is still not hot, after the water for a while hot, and cold

1, whether the pipeline is too long, 2; block 3; distance is 4; water pressure is not enough 5; pipeline laying problems

Q:What is the flow medium of the valve?

What is the valve. If the water through the valve, the medium is water. I hope I can help you.

Q:How to quickly identify the types of valves?

There are many kinds of valves, such as butterfly valve, ball valve, globe valve, gate valve, check valve, plug valve, plunger valve and diaphragm valve...... Pneumatic, electric, worm, or handle......There are also pictures on the Internet, you can search their respective pictures, shape is visible

Q:What is the valve?

Is the switch, switch on the pipeline and can walk on water, air, oil and so on go. A lot of categories, you can control the on-off, control pressure safety valve, as well as a lot of filtering valves.

Q:How can the material be checked by valve approach? What experiments do you need?

Under normal circumstances, in the selection of the valve has been considered the main components of the valve material, the use of the valve to determine (for example, media, temperature, pressure, etc.), the valve can not change the material used. For higher or special purpose valves, in addition to the normal valve strength, sealing test, the main material must be used for the inspection and confirmation. The chemical composition and mechanical properties of the valve body, valve cover, sealing surface, valve stem, packing and sealing parts shall be examined. Samples can be taken in bulk or tested with test sticks attached to the product.

Q:Why is the valve on the pipeline not the same size as the pipe, and how much of a crude pipe can be given? Thank youI'm sorry, I didn't make it clear that when doing pipe work in the factory, for example, 60 of the pipe, and in this pipeline to install the valve to choose DN50, and so on.

Do you mean the form of welding? The size of the valve can be changed according to the size of the pipe!