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FAQ

What's the meaning of the ball valve bore 14 "x 12"?
The inner diameter of the two ends of the ball valve is 14 inches at one end and 12 inches at the other.
Calculation formula of ball valve flow
The sectional area of diameter of DN15, DN25 and DN50 is respectively:DN15:15*3.14/4=176.625 mm, 0.0177 square decimeter.DN25:25*3.14/4=490.625 mm, 0.0491 square decimeter.DN50:50*3.14/4=1962.5 mm, 0.1963 square decimeter.A pipe flow rate of V=4 M / s V=40 decimeter / s, and the 1 liter =1 cubic meter, the pipe flow respectively (cross-sectional area multiplied by the velocity):DN15 pipe: flow Q=0.0177*40=0.708 L / sec,It's 2.55 cubic meters per hour.DN25 pipe: flow Q=0.0491*40=1.964 L / sec,It's 7.07 cubic meters per hour.DN50 pipe: flow Q=0.1963*40=7.852 L / sec,It's 28.27 cubic meters per hour.Note: a flow rate must be given to calculate the flow rate, which is calculated in accordance with 4 meters per second.
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
PP-R double joint hot melt copper ball valve DN50 connection method how to connect?
There are two kinds of adjustable temperature control and fixed temperature control. The specifications are the same as those of the tube. It can be controlled by temperature control. It can be used in other material pipes. Such as: PE, PP and so on.
How does ball valve indicate?
Start with Q, such as Q41F-16P DN50Q is a ball of the code, second bit 4 is connected, third bit 1 is the structure form, the F fourth is sealing surface material is PTFE, 16 represents the pressure is 16KG, P stainless steel,,Specific refer to valve selection manual,,
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
For our valve beginners, how intuitive decision is floating ball valve or fixed ball valve?
Floating ball valves and fixed ball valves can be located in the lower stem position, if there is a lower stem is fixed ball valve
Can the ball valves be used in heating?
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.