CVS copper diaphragm check valve is of a diaphragm self-suction design, which has a copper tube full hermetic valve body structure with inside filter screen, magnetic and PTFE coated metal diaphragm. Therefore, the check valve self-closing will not be influenced by the angle of installation or the reversal pressure. It enjoys a lot of advantages such as the minimum flow resistance, high flow rate and almost zero leakage in reverse operation.
 
Application:
CVS copper diaphragm check valve is used on the exhaust pipe of the compressor to prevent the condensed liquid refrigerant flowing back to the compressor.

Technical Parameters:
Applicable Refrigerants: HCFC, HFC
Applicable Medium Temperature: -40℃~+130℃
Maximum Working Pressure:  Refer to the attached Specification sheet
Minimum Opening Valve Pressure Differential: △P=0.03MPa

Features:
The brass valve seat, the diaphragm self-suction structure design and the inside filter screen make the produce with both filter and check valve functions.
The self-closing of the check valve will not be restricted by the angle of installation, neither be influenced by the reversal pressure.
The higher external sealing performance is ensured by the red copper tube full hermetic valve body structure.
The universal ODF port is convenient in replacement. ODF port size: 1/4”~3-1/8”.
It has high flow rate and minimum flow resistance.
Straight-through type product is compact and lightweight with almost zero leafage in reverse operation.
With PTFE coated metal diaphragm, it is applicable to all types of refrigerants and the applicable medium temperature: -40℃~+130℃.
 
Structure：
 
 
1. copper tube valve body;   2. filter screen;    3. valve seat;   4. magnet;    5. diaphragm;    6. support;    7. protective cap
 
Specification
Type Port Dimension  d(in) Copper Tube OD D(mm) Max. Working Pressure(MPa) Liquid Refrigeration Capacity(KW) Filter Screen Mesh Number L(mm)
CVS-6 1/4 Φ22 5.5 6.8 40 102
CVS-10 3/8 Φ22 5.5 14.2 40 102
CVS-12 1/2 Φ28.6 5.2 38.2 40 127
CVS-16 5/8 Φ28.6 5.2 42.6 40 127
CVS-19 3/4 Φ41 4.1 79.7 40 178
CVS-22 7/8 Φ41 4.1 108.5 40 178
CVS-28 1-1/8 Φ54 4 188.5 40 212
CVS-35 1-3/8 Φ54 4 232.8 40 212
CVS-42 1-5/8 Φ79.4 3 397.7 40 265
CVS-54 2-1/8 Φ79.4 3 691.1 40 265
CVS-67 2-5/8 Φ105 3 927.3 40 330
CVS-79 3-1/8 Φ105 3 1262.5 40 330