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FAQ
- Can the ball valves be used in heating?
- Ball valve because of its geometry and the sealing of the pipeline is relatively good, so many applications. The heating is fine, of course.
- Is the ball valve installed in a direction?
- Valve installation generally no direction required, any end of the valve can be mounted on the upper end. If the valve marked the direction, then it should be installed in the direction of tagging installed.
- DN20 copper ball valve with large PPR converter connector
- What do you see a ball valve, PPR ball valve, ball valve with internal screw threads, ball valves, but if you look at the butt of the ball size, if the ball is 20. The tube is 20, then the 20*1/2 internal thread can be directly on the butt.
- Stainless steel ball valve, Q11F-10P, 16P, 11F, what does that mean?
- The first 1 that connect the second ball, 1 straight through valve, F PTFE sealing.
- Electric ball valve installation need to pay attention to what?
- 8, electric and pneumatic valve in order that no special contract allows only vertically installed in the indoor use. 9, after the completion of the pipeline construction, all the valves on the pipeline line shall be opened and the residual dirt shall be removed.
- Calculation formula of ball valve flow
- Q=Cd*A* (2*delta_P/rou) ^0.5Among them, Cd is the flow coefficient, generally take 0.6~0.8, you can go to check informationA is the opening areaDelta_P is the differential pressure between the inlet and outlet of the ball valveRou is the density of the fluid
- Difference between fireproof and antistatic ball valve and ordinary ball valve
- Ha ha, that is, non sparking metal, alloy, copper, alloy, aluminum is all right
- 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.
