Page 168 - Valve Selection Handbook
P. 168
Check Valves 155
Diaphragm Check Valves
Diaphragm check valves such as those shown in Figure 4-12 through
Figure 4-15 are not as well-known as other check valves, but they
deserve attention.
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Figure 4-15. Diaphragm Check Valve Incorporating Flattened Rubber Sleeve
Closure Member, Used as Tide Gate. (Courtesy of Red Valve Company, Inc.)