Q:What is the diameter of the 2 inch ball valve?

It depends on whether your ball valve is full diameter or necking

Q:It's the brass valve in front of the water meter. It doesn't move at all. It's broken. Found the following axis of rotation is not rust, copper plated iron, with a screwdriver to the ball screw, screw is not moving, the valve is much worse than PPR. Real junk products

There is a ball groove, the shaft is connected with a handle is installed in the tank, due to frequent water tap connecting parts have a certain slope groove and the shaft, causing slipping the ball still turn the handle when (the metal ball). Difficult to repair, usually replace the whole ball valve.

Q:Please professional help guide: accidental discovery of connection pipe and valve (mark position diagram) can rotate, but there is no problem with the 10 Water Leakage.Please professional help guide: accidental discovery of connection pipe and valve (mark position diagram) can rotate, but there is no Water Leakage problem, while the valve under the same position is fixed and can not rotate, will this situation is normal? Is it possible to leak water in the future?

Abnormal, should be fixed, a long time may leak.

Q:Would you please tell me why the spring is placed in the valve seat? What's the function?

Valve seat on both sides should be added spring, the seal pushed to the valve core to seal up, so put the spring.

Q:What does "F" and "C" mean in the Q11F-16C of the ball valve?

This model is not international standard number, but still can see, of which, F refers to the sealing material: fluorine plastic, C refers to the body material: carbon steel.

Q:Check valve, ball valve, check valve are used in what place, ah?

This problem may have two meanings: first, what are these pipe fittings used in? Two, globe valve, ball valve, check valve, their respective uses and occasions. First of all, these fittings are used in pipework, i.e., where gases, liquids, or gases are used as power sources. Therefore, almost all industries (Engineering) are required to use, especially chemical enterprises, water supply, hydraulic systems are more widely used.Pipe (valve) the most important parameters are the use of pressure, pipe nominal diameter, the use of medium, temperature, spool valve body material. Many types of valves, the most common are cut-off valve, gate valve, ball valve...... , check valve (many forms) is to prevent fluid back, such as the need to install the pump outlet, the pump stops to prevent fluid back, therefore, the fluid requirements in the process are not allowed back to places which need to install a check valve. Cut-off valve is mainly used for the need to cut off the fluid, it is good tightness (not easy to leak), but the resistance is greater. And the ball valve, its spool is a ball shaped body, simple structure, convenient switching, but its adjustment and pressure resistance is poor, so often used in the smaller diameter of the water pipe. For further information, please refer to the valve selection manual. If required, please provide the QQ mailbox for your electronic books.

Q:What does "ball pq340h-10c-1200" mean?

This is the worm gear eccentric hard seal hemisphere valve, 10 kilograms of pressure, caliber is 1200.

Q:What are the structural shapes of the eccentric hemisphere valve, what are their respective characteristics?

Two, characteristicsThe eccentric hemisphere valve is mounted type structure. The valve installed on the pipeline can be directly checked and maintained, which can effectively reduce the device parking and reduce the cost.Eccentric semi spherical valve is single valve seat design. The utility model eliminates the problem that the medium of the valve in the valve is influenced by the abnormal voltage increase.Low torque design. Special structural design of the valve stem, with only a small hand, the valve can easily open and close.No friction at opening and closing. This function completely solves the problem that the traditional [wiki] valve [/wiki] affects the sealing because of the friction between the sealing surfaces.Wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the ball wedge to the seat and seal, so that the valve sealing is not affected by changes in pipe pressure, in a variety of conditions, sealing performance has a reliable guarantee.The self-cleaning structure eccentric semi ball valve sealing surface. When the ball roll off the seat when the fluid in the pipeline along the sealing surface of the sphere into 360 degrees evenly through, not only eliminates the high speed fluid on the seat of local scour, also washed away the sediment on the sealing face, achieve the purpose of cleaning.

Q:What is the meaning of ball valve model Q947MF-2.5C?

Q stands for ball valves, 9 for electric installations, 4 for flange connections, 7 for straight through runners, 2.5 for 2.5 kg pressure, and C for carbon steel for valve bodies,