LPA Pump for Refrigeration Systems – Low-Pressure Ammonia or Glycol Circulation Pump

Hysaveasia

LPA low-pressure circulation pump designed for refrigeration systems using ammonia or glycol as the working fluid in industrial cooling applications....

Pumps & Compressors Hysaveasia 01 Apr 2026 ( )

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Advantage of LPA-Pump

There is no leakage of refrigerant due to magnetic pump.
LPA PUMP inhales high-pressured refrigerant liquid from exit of liquid receiver to increase refrigerant flow and prevent flash-gas, so pressure of the refrigerant liquid becomes 1~2bar higher and compressor could be cooled by supply of only small volume of refrigerant liquid.

Effect on compressor (Reciprocating, Scroll and Screw)

Temperature of the cooled gas discharged by compressor is from 60 to 80 degree.
Efficiency of compress improves as additional injection line for cooling compressor is no longer necessary.
Life of operation units (ex. Valve, Piston, Bearing, etc.) increases.
Oil carbonization and motor coil abrasion are prevented.
Effect on condenser (Air-cooled, Water-cooled and Evaporating)
In case of air-cooled condenser, leakage of refrigerant is very little as flexibility is low.
In case of water-cooled and evaporating condensers, consumption of coolant is low.

Technical Specifications

Item	Specifications	Remarks
Update Date	Hysaveasia	2026
Lead time	within 30 days	Can be expedited
Material	See product manual	Request Inspection Report
Application	Applicable to multiple industries	Complies with standards
Keywords	Refrigeration,Systems,Low-Pressure,Ammonia,Glycol

Procurement suggestions

LPA pumps for refrigeration must handle ammonia or glycol at low pressure with magnetic drive or double mechanical seals to prevent leaks. Materials should comply with ANSI/HI 9.6.1 and resist stress corrosion cracking (e.g., ASTM A351 CN7M for ammonia). Critical in industrial chillers or cold storage facilities. Avoid cast iron housings in ammonia systems. Verify NPSHa margin during defrost cycles to prevent cavitation. Choose suppliers offering pump curve validation and vibration analysis to ensure long-term reliability in 24/7 operation. (for reference only)