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CVS type copper diaphragm check valve adopts a fully sealed valve body made of copper tube, integrated with filter screen, magnetic actuation and PTFE-coated diaphragm self-priming structure. This design ensures the automatic closing of the check valve is unaffected by installation angle and back pressure magnitude. It features extremely low flow resistance, high flow capacity, and nearly zero reverse leakage.
| Model | Connection Size (in) | Copper Tube OD (mm) | Max. Working Pressure (MPa) | Liquid Refrigeration Capacity (KW) | Filter Mesh | 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 |
Kv Value:The flow rate (in m³/h) of water with a density of 1 ton/m³ passing through the check valve at a pressure differential of 100 kPa.
Applicable Refrigerants: HCFC, HFC
Applicable Medium Temperature: -40℃ ~ +130℃
Maximum Working Pressure: Refer to the selection table for details
Minimum Opening Pressure Differential: △P = 0.03 MPa
Structure:
- Copper tube valve body; 2. Filter screen; 3. Valve seat; 4. Magnet; 5. Diaphragm; 6. Support; 7. Protective cap
Product Features:
- Designed with a brass valve seat and diaphragm self-priming structure, equipped with an internal filter screen, integrating the functions of a filter and a check valve.
- The automatic closing of the check valve is unaffected by installation angle and back pressure magnitude.
- Adopts a fully sealed copper tube valve body structure to ensure superior external sealing performance.
- Features a universal ODF connection for easy replacement, with ODF sizes ranging from 1/4″ to 3-1/8″.
- Extremely low flow resistance and high flow capacity.
- Straight-through design, compact size, light weight, and nearly zero reverse leakage.
- The PTFE-coated diaphragm makes it suitable for all refrigerants, with an applicable medium temperature range of -40°C ~ +130°C.
Product Application:
The CVS type copper check valve is installed in the compressor discharge line to prevent condensed liquid refrigerant from flowing back into the compressor.
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