Fireproof High Performance Lug Butterfly Valve

Products Description:

Fireproof valve seat (fire-resistant valve seat) Fire-resistant valve seats are considered for use when effective closing is required during fire. The metal seat ring is inlaid with RPTFE or PTFE and other materials, and RPTFE/PTFE is used as the first seal. When the RPTFE/PTFE burns out, the metal seat ring acts as a second seal to effectively close. Fire-resistant valve seats are also suitable for critical or severe service conditions. Butterfly valves with fire-resistant seats are tested and approved in accordance with API607 and BS6755 Part 2.

Eccentric shaft and eccentric butterfly plate design

There is no contact between the valve seat and the butterfly plate when open and in the intermediate position. There are no wear points on the upper and lower parts of the valve seat; the torque is low. Valve seat is easy to repair and maintain The valve seat can be replaced by simply removing the insert without disassembling the butterfly plate and valve shaft.

Both cutting and controlling

Has excellent control characteristics. The flow characteristic curve changes proportionally. Wide adjustment range. It can still be tightly sealed even when used for control.

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