4 Inch Stainless Steel Butterfly Valve

Classification by structural form
(1) Center seal butterfly valve

(2) Single eccentric sealed coal valve

(3)Double eccentric seal butterfly valve

(4) Triple eccentric seal valve

Classification by work pressure
(1) Vacuum butterfly valve. Butterfly valve whose working pressure is lower than the standard reactor 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.

Advantages and Disadvantages of Folding Stainless Steel Butterfly Valve
1. Advantages of stainless steel butterfly valve

1. Opening and closing is convenient, fast, labor-saving, has small fluid resistance, and can be operated frequently.

2. Simple structure, small size and light weight.

3. It can transport mud with minimal liquid accumulation at the pipe mouth.

4. Under low pressure, good sealing can be achieved.

5. Good adjustment performance.

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