Many engineers know how to tell butterfly valves apart. Here RMT Flowtech will show all types of butterfly valves for you, so that you can find suitable products easily.
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By Drive Mode:
(1) Electric butterfly valve
(2) Pneumatic butterfly valve
(3) Hydraulic butterfly valve
(4) Manual butterfly valve
By Structure Form:
(1) Center seal butterfly valve
(2) Single eccentric sealing butterfly valve
(3) Double eccentric sealing butterfly valve
(4) Triple eccentric sealing butterfly valve
By Material of Sealing Surface:
(1) Soft seal butterfly valve
(2) Metal hard seal butterfly valve
By Sealing Form:
(1) Forced seal butterfly valve
(2) Pressure sealing butterfly valve
(3) Automatic sealing butterfly valve:
By Working Pressure:
(1) Vacuum butterfly valve. A butterfly valve whose working pressure is lower than the standard stack atmospheric pressure.
(2) Low pressure butterfly valve. Butterfly valve with nominal pressure PN<1.6MPa.
(3) Medium pressure butterfly valve. Butterfly valve with nominal pressure PN of 2.5–6.4MPa.
(4) High pressure butterfly valve. Butterfly valve with nominal pressure PN of 10.0–80.0MPa.
(5) Ultra-high pressure butterfly valve. Butterfly valve with nominal pressure PN>100MPa.
By Working Temperature:
(1) High temperature. Butterfly valve for t>450 °C.
(2) Medium temperature butterfly valve. 120 C<t<450 ℃ butterfly valve.
(3) Normal temperature butterfly valve. A 40C<t<120 °C butterfly valve.
(4) Cryogenic butterfly valve. A 100<t< a 40 °C butterfly valve.
(5) Cryogenic butterfly valve. t<-100 °C butterfly valve.
By Connection method:
1. Wafer butterfly valve
The butterfly plate of the wafer butterfly valve is installed in the diameter direction of the pipeline. The valve is fully open.
The wafer butterfly valve has simple structure, small size and light weight. Butterfly valves have two sealing types: elastic seal and metal seal. For elastic sealing valves, the sealing ring can be embedded on the valve body or attached to the periphery of the butterfly plate.
2. Flanged butterfly valve
The flange butterfly valve is a vertical plate structure, and the valve stem is the sealing ring of the integral metal hard seal valve
It is a composite structure of flexible graphite plate and stainless steel plate, installed on the valve body, and the sealing surface of the butterfly plate is surfacing with stainless steel. The sealing ring of the soft seal valve is made of nitrile rubber and is installed on the butterfly plate.
3. Lug type butterfly valve
4. Welded butterfly valve
Post time: Dec-13-2023