4"end, side opening membrane housing

L-length of pressure container, different from the specification and quantity of film element.
D1- OD of pressure container
S- supporting span of pressure container
P-distance between side opening ports at the direction of length of pressure container

Technical requirements:
The fabricating method of membrane housing should be in accordance with JC692-1998;
The design pressure of membrane housing is 1000PSI and the permitted scope of work temperature is －7℃~49℃
The leakage test of membrane housing adapts hydraulic test. The test pressure is 1.2 times of the design pressure.