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In Sealed Form
May 24, 2017

In sealed form

(1) Forced seal butterfly valve.

1 Elastic seal butterfly valve. The valve seat is extruded and the valve seat or the valve plate is elastically generated by the sealing pressure when the valve is closed.

2) plus torque seal butterfly valve. The sealing pressure is generated by the torque applied to the valve shaft.

(2) Filling pressure seal butterfly valve. The sealing ratio pressure is produced by filling pressure of the cartridge seals on the seat or valve plate.

(3) Automatic sealing butterfly valve. The pressure of the seal is produced automatically by the dielectric press.

According to the work pressure

(1) Vacuum butterfly valve. The pressure of work is lower than that of the standard reactor.

(2) Low pressure butterfly valve. Nominal pressure Pn 1. 6MPa butterfly valve.

(3) Medium pressure butterfly valve. Nominal pressure PN is 2. 5-6. 4MPa butterfly valve.

(4) High pressure butterfly valve. Nominal pressure PN is 10. 0--80. 0MPa butterfly valve.

(5) Ultra high pressure butterfly valve. Nominal pressure Pn 100mpa butterfly valve.


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