Let me show you the size of Sanitary Diaphragm Valve

The structure of sanitary diaphragm valve is very different from that of general valves. It relies on soft rubber membrane or plastic membrane to control the movement of fluid. Commonly used diaphragm valve materials are divided into cast iron diaphragm valve, cast steel diaphragm valve, stainless steel diaphragm valve, and plastic diaphragm valve. Generally within 6kgf/cm2 (0.6MPa).

The dimensions of sanitary diaphragm valves are as follows:

Common name - inch in-DN - nominal outer diameter mm

4-inch - 1/2 - 15 - φ20

6-inch - 3/4 - 20 - φ25

1-inch - 1 - 25 - φ32

1-inch 2 - 11/4 - 32 - φ40

1.5-inch - 11/2 - 40 - φ50

2-inch - 2 - 50 - φ63

2.5-inch - 21/2 - 65 - φ75

3-inch - 3 - 80 - φ90

4-inch - 4 - 100 - φ110

5-inch - 5 - 125 - φ140

6-inch - 6 - 150 - φ160