Refrigeration Compressor Liquid Line Components Design | Sight Glass, Solenoid Valve and Filter Drier Layout
Improper liquid line layout causes 25% of expansion valve starvation and unstable system operation, xiteliduo Refrigeration Compressors gives piping layout rules. Piston refrigeration compressor liquid line solenoid valve must be installed before filter drier; valve outlet must keep full liquid refrigerant under normal load. Semi-hermetic refrigeration compressor liquid line sight glass shall be placed after filter drier, to observe liquid status and moisture indicator color. Cold storage refrigeration compressor liquid line shall avoid high points which trap gas; gas accumulation leads to insufficient liquid supply to expansion valve. Liquid line pressure drop should be controlled within 0.05 MPa; excessive pressure drop will generate flash gas before expansion valve inlet. 10 recommended hot search keywords: cold storage refrigeration compressor, piston refrigeration compressor, semi-hermetic refrigeration compressor, refrigeration liquid line design, refrigeration liquid solenoid valve, refrigeration sight glass, refrigeration flash gas prevention, refrigeration compressor manufacturer, cold storage refrigeration piping, refrigeration compressor supplier
FAQ
Q1: What percentage of expansion valve starvation faults are caused by poor liquid line layout? A: 25% of expansion valve liquid shortage and unstable operation come from improper liquid line arrangement. Q2: What is the installation sequence of liquid line main components? A: Solenoid valve → filter drier → sight glass → expansion valve. Q3: What is the function of sight glass? A: Observe full liquid status and check system moisture level. Q4: What hazard will high point trap gas in liquid pipeline? A: Flash gas occurs, expansion valve gets insufficient liquid supply. Q5: What is the allowable maximum pressure drop of liquid line? A: Less than 0.05 MPa. Q6: What is flash gas? A: Partial liquid refrigerant vaporizes due to pressure drop before expansion valve. Q7: What will happen if flash gas enters expansion valve? A: Reduced refrigeration capacity and unstable superheat control.
