Pilsa Ppr Pipes

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FAQ

What's the difference between angle valve and ball valve?
Ball valve, as its name suggests, is the shape of a ball valve, water from the hole in the middle of the ball out, usually the handle to control the opening and closing. But the ball valve can only be switched on and off, and can not adjust the flow. To put it plainly, you take it half open and half closed, and its flow is not about 50%, and fluctuates greatly. In addition, if the ball valve will be half closed, it will damage the ball valve, greatly shorten its life. Ball valve is mainly used for heating hot and cold water inlet pipe.
Butterfly valve and ball how to distinguish from the appearance
The butterfly is oblate, the valve is cylindrical Oh, actually it is the name of the image
Difference between fireproof and antistatic ball valve and ordinary ball valve
Therefore, the general manufacturers will be made fire-resistant, anti-static.I do the valve above all hand typing, and if the answer is satisfactory, please adopt in good time Oh. There are questions to ask!!!
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.
What is the principle of forced sealing ball valve? How to achieve mandatory sealing function? Is it suitable for high pressure conditions?
With spring to achieve forced sealing, not applicable to high pressure
What does "DN PN" mean? DN25 PN18 stands for what is the thickness? With the usual said 4 in charge of what's the relationship?
*DN25 nominal diameter 25MM*PN18 nominal pressure 18 kg / cm2
3/4 inch ball valve specifically refers to the size of the ah? Great God pointing 5
Not counted. 3/4 is also called DN20, also called 6 points.DN20, that is to say, the caliber is 2 centimeters, so you see?.
Ball valve 11F, 41F, 11H, 41H
41F flanged ball valve type sealed through using tetrafluoroethylene; 11H is threaded through valve type the alloy steel seal;