Classification of check valves

Compared with other types of valves, the amount of check valve is less, but its structure is still quite large.

According to the structure, it can be divided into three types: lift check valve, swing check valve and butterfly check valve:

1. The lift check valve is divided into two types: vertical and horizontal.

2. The swing check valve is divided into three types: single-lobe type, double-lobe type and multi-lobe type.

3. The butterfly check valve is a straight-through type.