Q:What is the service valve?

In front of the valve will need to be all pass, that is, the hole and the ball valve line diameter consistent, the ball will not be card.

Q:How can the eccentric hemisphere valve be repaired? What are the things you should pay attention to when installing?

Standard light valve professionals to answer for you, eccentric semi spherical valve installation methods and precautions:1. Check the cleanliness of the inner cavity of the valve before installation. Make sure the parts are perfect and no foreign objects can be installed.2, ball drive device breaking up, moving and electric way two, can be installed according to user needs, valve installation before test, start and shut two times. When after a period of time, there is a leak valve, adjustable manual and electric driving device for limiting the fastening bolt due to eccentric structure, can compensate for the wear, you must read the "manual and electric drive manual adjustment".3, eccentric axis and valve seat sealing adjustment, must be experienced personnel can be carried out.

Q:What's the difference between a copper ball valve and a stainless steel ball valve?

The difference between copper ball valve and stainless steel ball valve:1, they use the material is completely different, steel ball valve adopts copper, stainless steel ball valve is stainless steel.2, copper ball valve corrosion resistance is excellent, switch operation is smooth, labor-saving, durable without leakage. Stainless steel will not cause corrosion, pitting corrosion, corrosion or wear, and high temperature resistance. The average stainless steel is more expensive.3, according to the same pressure environment, the price is stainless steel cheaper, and copper ball valve medium temperature is much higher than the stainless steel ball valve, if the medium temperature is too high. Copper ball valve must be used! If the medium temperature is not more than 80 degrees. With stainless steel ball valve on it

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

The cut-off valve is generally used in the inlet pipe, the outlet valve is generally used in the official website, convenient switch, check valve is to allow water to flow past the water directed, anti back, generally used in vertical pipe, the equivalent of the pump valve

Q:Advantages of track ball valves

10, the valve refractory design, API, 6FA and API 607 standards. All valves are fire resistant and safe.The valve seat sealing surface., all metal seal structure, when the fire, still can guarantee the sealing medium leakage, stop.The flange. In stainless steel and graphite gasket, can meet the requirements of fire;The stuffing box is arranged. Flexible graphite packing, can lose the effect due to fire and other reasons in other packing flexible graphite packing to seal effect can meet the requirements of fire;11, the valve stem through the stem nut, valve cover, valve body, between the core of the ball formed a continuous circuit conduction, to achieve anti-static effect.12, in order to improve the reliability of the valve, safety and sealing capacity, to reduce the failure rate, the valve low-pressure air tightness does not depend on the seat spring to achieve.13, the stem and valve ball position by stem guide pin and stem to cut off the coordination to control, in order to ensure the stability of valve operation, stem guide pin for double guide pin, and stem guide pin can be removed and replaced from the outside.14, hand wheel or bearing fixed, use bolt or nut compression, do not use elastic clasp.15, the valve installation size and the existing valve consistent, with good interchangeability.

Q:3/4 on the elbow of the water pipe. How about that ball valve?

3/4 inches converted approximately equal to 20mm, that is, DN20, can be equipped with DN20 caliber ball valve, commonly used for brass material

Q:What's a twin hot melt ball valve?

Is a plastic ball valve, connecting France is hot melt.

Q:1 and 1/2 ball valve is how much?

1 and 1/2 ball valves, DN40mm.The ball (ball valve as the cut-off valve in the marine and marine field), standard GB/T21465-2008 "valve terminology" is defined as: opening and closing parts (ball) driven by the stem, and around the valve axis for rotation of the valve. Can also be used to regulate and control fluid, strong shear force between the metal seat seal V type ball valve V type ball core and welding hard alloy, especially suitable for containing fibers, small solid particles and other media. Switch and multi way valve in the pipeline not only can flow, and flow diversion, flexible control of the medium, but also to turn off any channel to the other two channels. This kind of valve should be installed horizontally in the pipeline. In accordance with the way to drive the ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve.

Q:How to distinguish between cold water valve and hot water ball valve?

By the way, do you only require the working medium of the valve, general cold water and hot water?;Can provide the next 1, the valve's general use temperature of 2, whether the media granular impuritiesBoiling hot water is only 100 degrees; general, general valve can reach this use conditions,So cold water and hot water can choose the same type of valveI think the valve you want to know is not the drinking water valve you use at school?

Q:DN20 pressure 6000PSI, one piece of thread on the threaded, full diameter ball valve body length and flow hole to how much?

1, the valve body and the valve cover as a whole bear cavity, must meet the design manual on the minimum wall thickness requirements, at the same time to add corrosion allowance, at the same time calculation, large value as the wall thickness of 2, then according to the height of gate valve diameter, to ensure that the valve in the fully open under the condition, ensure the seal and the valve cover seal gate, so that we can determine the height of