Q:What does "S" mean by ball valve Q11S?

S stands for plastic sealing.Stainless steel ball valves only need to rotate 90 degrees of operation and small rotating torque can be closed tight. Full equality of the valve cavity for the media to provide a small resistance, through the flow channel.The main features of the valve itself is compact, easy operation and maintenance, stainless steel ball valve can be used to control air, water, steam, all kinds of corrosive media, mud, oil, metals and radioactive liquid media and other types of fluid flow.Ball valve body can be integrated, or can be combination.This kind of valve should be installed horizontally in the pipeline.Stainless steel ball valve classification: stainless steel pneumatic ball valve, stainless steel electric ball valve, stainless steel manual ball valve.Stainless steel ball valve is divided into 304316321 stainless steel ball valve.

Q:What does copper ball valve mean by "1/2"?

1/2 is inch inch, which is what is usually called "valve", and the caliber is "DN15". You can see the contrast chart of the valve diameter and inch.

Q:Difference between fireproof and antistatic ball valve and ordinary ball valve

Fire valve is generally aimed at soft sealing material valve, that is, after the fire on the valve, the ball valve can rely on medium force and metal valve seat (body) contact, to achieve sealing, so that the fire does not go down the pipeline. Anti-static valve is for soft sealing material of the valve, when the ball switch and soft seal friction, will produce static electricity, if the pipe is taking the flammable and explosive medium is very dangerous, so the valve will set a device outside the sphere will Unicom electrostatic oriented, to prevent static electricity.Generally like the market valve, a little better quality, they are the default valve is fire, anti-static, the production costs of these two types of valves is bad, at most two or three dollars, which is still much.

Q:What are the types of vacuum ball valves?

Shanghai Guardian valve has the production of GUD type electric high vacuum ball valve, GU manual high vacuum ball valve, GUQ pneumatic high vacuum ball valve, welcome to buy, thank you!The utility model has the advantages of simple structure, good tightness, small installation dimension, small driving moment, simple operation and rapid opening and closing

Q:DN15 ball valve with a bit of outer wire

Is. But we usually use engineering diameter in our country. A few is the imperial system, in addition to the domestic veteran workers still use, and now are using GB size.

Q:What are the differences and advantages between O ball valve and V ball valve?

5, high reliability1, the ball and valve seat a pair of sealing pairs, there will be no abrasions, rapid friction and other failures;2, stem into the built-in type, to eliminate the stem under the action of fluid pressure may be caused by the packing gland release flying accident hidden trouble;3 、 adopt antistatic and fireproof structure ball valve, which can be used to transport petroleum, natural gas and gas pipelinesV type ball valve structure of a right angle turn, can achieve flow regulation, according to the V type angle V type sphere, realize different proportions, V type ball valve and valve actuator and positioner supporting the use, the ratio can be adjusted V type valve adjustment for a variety of occasions, with a rated flow coefficient large, adjustable ratio, good sealing effect, regulate the performance of zero sensitivity, small size, can be vertical horizontal installation. For control of gas, steam and liquid medium.V type ball valve for rotary type rectangular structure by V type valve, pneumatic actuator, positioner and other accessories; there is a similar more than 100 of the inherent flow characteristics; dual bearing structure, the starting torque is small, with excellent sensitivity and speed sensors, the shear capacity of strong.

Q:The toilet water pipe valve is broken, with a new twist, how are the screw does not move, then they told me to go on to the pipe on the water and then tighten, did as he said, really screwed, but do not know why, please tell the master what is the principle, if it is water without water when the screw does not move, but when the water can twist. What a kink!Is the water valve normal, a pull rod, pulling it back flush, do not rush the kind, the middle is a hollow ball

This is because the ball valve in the factory after the test pressure, after the ball valve pressure test, there is a vacuum, and the ball core and gasket pressed.When the pipe is loaded, the ball core and the sealing surface are slightly moved by the water pressure, so the taxi is opened. There is no vacuum in the inner part of the opening. Ball valve is good to use.A pressure test valve is not open for the first time.

Q:Buy Ball Valves

Not let you buy the entire valve, you take this valve to the building materials market, see the valve handle can be sheathed in your valve stem, the valve handle is arranged to buy, your valve

Q:Ball valve? I require the valve to control both sides of the liquid, one side with liquid flow, and the other side closed!

Three way reversing ball valve. Three way ball valves are T and L. The T type can cause three orthogonal pipes to connect with each other and cut off third channels, thus diverting and merging the channels. Two pipeline L three ball type valve can only be connected mutually orthogonal, communicating with each other while maintaining the third pipeline, only as a distribution function.

Q:Replacement method of PPR hot melt ball valve

1, need to replace the valve, if the valve is flange or wire connection type, directly open flange or loosen the screw, the ball valve can replace a broken;