What is the difference between ordinary stainless steel ball valve and high temperature ball valve?

High temperature ball valve is suitable for working under high temperature conditions, ordinary ball valve performance will be reduced or even lost at high temperature; Stainless steel ball valve and high temperature ball valve in two different classification of the name, is not comparable.

Ball valve refers to the opening and closing parts (ball) driven by the stem, and around the ball valve axis for rotation of the valve.

Ball valve can be classified according to the driving mode, function, use, structure, body material, sealing form, application and so on. Stainless steel ball valve is classified according to the body material name, high temperature ball valve is classified according to the application of the name.

No ball valve is "ordinary" in the strict sense of the word. But the largest use in the actual application is unidirectional soft seal floating ball valve. The sealing material of this kind of ball valve is made of plastic, easy to seal, easy to process, low cost, but it is easy to deformation and damage the sealing material at high temperature resulting in leakage.

High temperature ball valve refers to the use of high temperature ball valve. In fact, what is high temperature, different occasions, standards in the division is different, there is no strict definition. Generally speaking, the use of plastic sealing materials, can work to 160℃ or above, can be called "high temperature", but often at the same time will explain the sealing form; Using metal elastic material as a seal (soft seal) ball valve, can withstand the temperature of about 300℃; Ball valves that can be used at 420℃ and above are hard metal seals.

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