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 inside parts of the ball valve?

The ball valve consists of a ball, stem, valve seat, upper bearing, lower bearing, spring and valve body.

Q:Can the check valve replace the ball valve?

Can not be replaced, because the ball valve to play a maintenance, cut off the role of water sources

Q:The valve nominal 1/2, 3/4 is how much?

Nominal diameter 1/2 3/4 corresponding to DN15 DN20

Q:The working principle of the track type ball valve

No wear and tear of switch:The ball core deviates from the valve seat and then rotates, eliminates the friction of the valve seat, and solves the abrasion problem of the seat of the traditional ball valve, gate valve and plug valve.Anti friction valve hard and dense cover:The surface of the ball core is welded with a hard polished sealing surface, which can ensure the sealing performance under very severe working conditions.

Q:Into the tap valve, with globe valve or ball valve?

Just don't buy cheap goods, cheap ball valves use a period of time, gland leakage, spool corrosion must be replaced.

Q:Why is there a water or oil in the new ball valve?

Forged steel ball valve installation will add butter to prevent damage to the seal, test pressure, if you use the water test pressure, generally will remain some of the normal

Q:Hello, I would like to ask the household tap water valve selection of stainless steel ball valve or brass ball valve is better, thank you

I have used two kinds, but stainless steel gate valve is better. Note that it must be made of stainless steel 304. I bought more than 300 yuan a gate valve. Total valve, no way to save money.

Q:Replacement method of PPR hot melt ball valve

The above problems belong to the wire type, and the name is: double live catch valve, directly loosen the lock nut, replace the valve can be.When the valve is purchased, the merchant sells a full valve. When the change is made, both ends of the live joint lock nut are removed and the valve is directly connected with the original lock nut on the pipe.

Q:What are the applicable conditions of ball valves?

Ball valve is also suitable for light structure, low pressure cut-off (small pressure), corrosive medium piping system. Ball valves can be used in cryogenic (cryogenic) units and piping systems. In the oxygen pipeline system of metallurgical industry, ball valve with strict degreasing treatment should be used. The main line in the oil pipeline and gas pipeline shall be buried in the ground, and all pass welding type ball valves shall be used. The ball valve with a V shape opening shall be used when required to adjust the performance. In the petroleum, petrochemical, chemical, electric power and urban construction, the piping system with working temperature above 200 degrees can choose metal to metal sealed ball valve.