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Refrigerant Recovery

Application Summary

Application Refrigerant Recovery
Description Recovery of refrigerants from cooling and air-conditioning systems for recycling or reclaiming
How Used Pumping liquid (pressurized) refrigerant from cooling systems and transferring it to a storage tank
Key Feature Smooth flow to avoid forming vapor
Micropump Products GC and GD
End Equipment Refrigerant recovery equipment
Pump Function Transfer
Fluids All commonly used refrigerants
Flow Rate <20 lbs/min of freon
Differential Pressure <450 psi (<31 bar)

Application Overview

A refrigerant is a substance or mixture, usually a fluid, used in a heat pump or refrigeration cycle in a variety of automotive, commercial and residential applications. Many fluids have been used as refrigerants, and most of them, if released would have a significant impact on the environment. As a consequence the recovery of these fluids during system recharging and at the end of product life is essential. Recovery is the process of removing refrigerant from a system and storing it for future recycling or reclaiming.

Gear pumps provide a simple solution for removing liquid refrigerant from the “high side” of the system and transferring it to a storage tank.

Diagram: Critical Pumping Requirements

Gear pump used to recover liquid refrigerant.

PUMPING REQUIREMENTS MICROPUMP SOLUTIONS
FLOW RATE: < 20 lb./min (Freon) We have variable speed pumps for this application with flows from 0.2 to 20 lb./min
MAX SYSTEM PRESSURE: 450 psi (31 bar) Our pumps operate up to 1500 psi (103 bar) max system pressure
MAX DIFFERENTIAL PRESSURE: 40 psi (2.76 bar) Our pumps operate up to 125 psi (8.6 bar) max differential pressure
CHEMICAL COMPATIBILITY: With refrigerant and acids formed from moisture and impurities Our chemically resistant construction materials stand up to the aggressive fluids found in refrigerants (PEEK, PSS, TEV, 316SS)
LEAK FREE Our magnetic drives eliminates dynamic shaft seals, keeping fluid securely inside the pump and potential contaminants out
MAINTAINABILITY We offer Service Kits for easy field serviceability

Micropump Products Optimized for this Application

Micropump GD Series and GC Series are most commonly used in this application. These gear pumps offer smooth pulseless flow avoiding vaporization caused by large pulsations from diaphragm, piston, or centrifugal pumps. The wetted materials of these pumps are well suited for use with common refrigerants. When installing these pumps, maximize the diameter and minimize the length of input lines to avoid vapor formation. Ideally the pump should be placed below the liquid source.

Series GD MAGNETIC DRIVE GEAR PUMP

GD

Series GD Pump:
Magnetic Drive Gear Pump

FLOW RATE: 1.74 to 13.9 L/min (27.6 to 221 USG/hr)

MAX DIFFERENTIAL PRESSURE: 100 psi (6.9 Bar)

MAX SYSTEM PRESSURE: 1500 psi (103 Bar)

WETTED MATERIALS: 316SS, PEEK, PSS, TEV

DRIVES: NEMA, IEC, drive mounts

Series GC MAGNETIC DRIVE GEAR PUMP

GC

Series GC Pump:
Magnetic Drive Gear Pump

FLOW RATE: 0.405 to 13.9L/min (6.4 to 221 USG/hr)

MAX DIFFERENTIAL PRESSURE: 125 psi (8.6 Bar)

MAX SYSTEM PRESSURE: 1500 psi (103 Bar)

WETTED MATERIALS: 316SS, PEEK, PPS, FKM, FFKM

DRIVES: NEMA, IEC, drive mounts

Performance Summary

This chart indicates optimal operating ranges for recommended products.

Micropump Advantage

The unparalleled quality, performance record, reliability and long operating life of Micropump pumps and our extensive engineering expertise make Micropump a vital partner in this demanding market.

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Micropump products are manufactured with minimal environmental impact enabling earth-friendly pumping innovations.