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Classification of check valves.


Classification of structure
According to the structure, it can be divided into three kinds: lifting check valve, swing check valve and butterfly check valve:
1. Lift check valve is divided into vertical and horizontal two kinds.
2. Swing check valve can be divided into single disc, double disc and multi disc three kinds.
3. Butterfly check valve is straight through.

The above types of check valves can be divided into thread connection, flange connection, welding connection and clamp connection.

Classification of material
1. Cast iron check valve
2. Brass check valve
3. Stainless steel check valve
4. Carbon steel check valve
5. Forged steel check valve

Classification of functions
1.DRVZ silent check valve
2.DRVG silent check valve
3.NRVR silent check valve
4.SFCV rubber flap check valve
5.DDCV double flap check valve
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