Middle cooler is used for twin-stage or multi-stage compressor refrigerating system. It is equipped between low pressure and high pressure stage of twin-stage or multi-stage compressors to cool the overheating ammonia steam.
Designing pressure and test pressure
1. Test pressure
Water pressure test case stroke2.0MPa
Air-tight pipe stroke4.0MPa
Case stroke 1.75MPa
2. Designing pressure
Case stroke 1.4MPa