Technical data: 1. The working air pressure: 3.0mpa, hydraulic pressure: 6.5mpa 2. Suitable medium: R12, R22, R502, R407c, R134A, R404A, R410aect refrigerants and other refrigerating oil. 3. Suitable temperature: -50° C+ 150° C 4. Material: Brass 5. Structure: Check 6. Pressure: Medium pressure Pressure relief valve /safety valve Compressor Brass safety valve for CARRIER compressor : Safety Valve is the very important parts for compressor. It is very popular in the market with good quality, long durability, etc. All production processes are strictly controlled in accordance with ISO quality management system. Operating principle : Internal pressure relief valves are compressor safety devices that limit the maximum operating pressure of the compressor .valves are designed in accordance with individual country code requirements,and are set to open at specific setting when the high side to low side differential pressure has been exceeded. When the valve opens,high side pressure is relieved to the low side and once equalized the IPR valve will reseat. When evaluating compressor problems,it is important to note that small amount of system contaminants may become trapped in the relief valve seat area,potentially allowing some high to low side leakage within the compressor .