Vacuum Pumps for HVAC & Refrigeration
23 products
Showing 25 - 23 of 23 products
Reliable, high-vacuum pumps for HVAC/R evacuation.
Achieve faster pull-downs and deep vacuums with our range of 2-stage vacuum pumps. Whether you are commissioning residential splits or large commercial VRF systems, we stock pumps designed for Australian conditions from trusted brands.
Quick Guide: Sizing Your Vacuum Pump
| Application | Recommended Flow | Best Setup |
|---|---|---|
| Residential Splits | 40 - 100 L/min (2-4 CFM) | Standard 2-Stage Pump + Micron Gauge. |
| Large Commercial / VRF | 150 - 300+ L/min (6-12 CFM) | High Flow Pump + Wide-Bore Hoses + Core Removal Tools. |
| Automotive A/C | 40 - 80 L/min | Compact Single or Dual Stage Pump. |
The "Fast Evacuation" Formula
A pump alone isn't enough. To speed up your evacuation time by up to 50%, follow these rules:
- Remove Cores: Valve cores restrict flow by 90%. Always use a Core Removal Tool.
- Use Large Hoses: 1/4" hoses are for charging, not evacuating. Use a 3/8" or 1/2" Evacuation Hose.
- Verify with Microns: Analogue gauges are inaccurate for vacuum. Use a Digital Micron Gauge to prove you hit 500 microns.
- Change Oil: Wet/cloudy oil kills pump performance. Change your Vacuum Oil frequently.
Common Questions
Do I really need a micron gauge?
Yes. An analogue gauge cannot measure deep vacuum accurately. A digital micron gauge is the only way to prove you have removed moisture and non-condensables down to the required level (usually 500 microns).
How often should I change vacuum pump oil?
Ideally, every job. At a minimum, change it immediately if the oil looks cloudy or milky, as this indicates moisture saturation which destroys the pump's ability to pull a deep vacuum.
What is the difference between Single and 2-Stage pumps?
2-Stage pumps pull a much deeper vacuum (essential for refrigeration/HVAC drying) by using a second stage to clean up the exhaust of the first. Single-stage pumps are generally not recommended for deep evacuation work.
Compliance: Work involving refrigerant emissions generally requires an ARCtick Licence.