Hard seal ball valve classification: a one-way sealing: only in the direction of the valve seal sealing direction. Two-way sealing: can be sealed in two directions

Structure: structure of ball valve is divided into floating ball and fixed ball type, connection form welding connection and screw connection for flange connection.

The performance of the ordinary ball outside, also has the advantages of high temperature resistance, friction and double entryinto, exit from the sealing function, of which two block is equipped with the outlet one-way sealing, the stainless steel spring to adjust the seat, the valve torque is more balanced, the valve in the high frequency, high temperature difference, pressure differenceunder the condition of stable performance, switch.

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