| Customization: | Available |
|---|---|
| Media: | Regfrigerants and Lubricating Oil and Water |
| Temperature: | -40~105ºC |
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The safety valve for refrigerators (central air conditioning safety valve) is a compact and lightweight safety device suitable for overpressure protection of refrigeration equipment hosts; The whole body is made of brass rod processing, and the seal is made of polytetrafluoroethylene F4 material, with high sealing performance and leakage in accordance with ANSI standards.
Working principle and purpose of the product:
SFA freezer safety valve is used on refrigeration equipment as an overpressure protection device. When the operating pressure of the equipment exceeds the allowable value, the valve can automatically open and discharge a certain amount of medium according to the equipment operation requirements to prevent the equipment pressure from continuing to rise and protect the entire system.
Product Structure Features:
1. Compact structure, light weight, suitable for safety devices for overpressure protection of refrigeration equipment hosts
2. The whole body is made of brass rod processing, and the seal is made of polytetrafluoroethylene F4 material, with high sealing performance
| Type | SFA-22C300T |
| Nominal pressure | 5.0MPa |
| Nominal diameter | DN8~32(1/4~1-1/4) |
| Shell test pressure | 7.5MPa |
| Relieving pressure | ≤ 1.1 times the set pressure |
| Seal pressure | 0.9 times the set pressure |
| Seal property | Pressure test for 2 minutes with no leakage, halogen leak test with leakage rate ≤ 0.1 g/year |
| Suitable temperature | -40~105ºC |
| Suitable medium | Refrigerants, oil, water, etc |
| size | do mm | set pressur psi(MPa) | ||||
| 200(1.38) | 250(1.72) | 300(2.07) | 350(2.41) | 400(2.76) | ||
| DN8(1/4in) | 6.3 | 9.0 | 11.5 | 13.5 | 15.5 | 18.0 |
| DN10 (3/8in) | 7.0 | 12.0 | 14.5 | 17.0 | 20.0 | 22.5 |
| DN15(1/2in) | 7.8 | 14.5 | 18.0 | 21.5 | 25.0 | 28.0 |
| DN20 (3/4in) | 11.0 | 29.0 | 35.5 | 42.5 | 49.5 | 56.0 |
| DN25(1in) | 18.0 | 77.5 | 95.5 | 114.0 | 132.5 | 150.5 |
| DN32(1-1/4in) | 26.5 | 168.0 | 207.0 | 247.0 | 287.0 | 319.5 |
Note:Set pressure can be set according to customer requirements |
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