vacuum pump air conditioner gas/vapour extraction pump. works perfect with a set of vacuum/pressure gauges.
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Mini Vacuum Pump DC2-5V 85mA Micro Air Pump 650ml/min Flow Rate -400mbar Vacuum Degree Small Air Pump Gas Detect Sampling Pump
Aliexpress UK
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DC 555 Micro Vacuum Pump Low Noise Electric Pumps 12V 24V Vacuum Coating Machine Air Pump Fish Tank Oxygen Pump Silent Air
Aliexpress UK
Specification Color: Silver Style: Modern Material: Die-casting Aluminum, Rubber Process: Spray Painting Motor Type: Pure Copper Motor Assembly Required: No Mount Type: Freestanding Power Source: Corded Electric Plug Type: UK Standard Horsepower: 1/4HP Voltage: 220V Vacuum Degree: 600mmHG Air Volume: 65-68L/14.3-14.96Gal/min Speed: 1450rpm Interface Size: 1/4 Noise: 50dB Power Cord Length: 1.8m/5.91ft Product Size: 28*12*17cm/11.02*4.72*6.69in Package Size: 35*18*27cm/13.78*7.09*10.63in Gross Weight: 4.95kg/10.91 lbs Net Weight: 4.7kg/10.36 lbs Package Included 1* Oil-free Vacuum Pump .
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3.7V 6V 12V Small Mini 370 Motor Diaphragm Air Pump Vacuum Pump Negative Pressure Suction Breast Pump Inflator Aquarium DIY
Aliexpress UK
With a3.5 cfm flow rate, it can draw systems down to37.5 microns (5 Pa) for quick and easy servicing of AC systems employing R12, R22, R134a, R410a, R502, and R1234yf refrigerants. Easily monitor the pump's oil level and quality using the built in sight glass.
eBay
YW11 Micro Mini Piston Diaphragm Pump DC 3V-6V 3.7V 5V Air Water Suction Vacuum Pump Gas Fluid Self-Priming Pump
Aliexpress UK
With a3.5 cfm flow rate, it can draw systems down to37.5 microns (5 Pa) for quick and easy servicing of AC systems employing R12, R22, R134a, R410a, R502, and R1234yf refrigerants. Easily monitor the pump's oil level and quality using the built in sight glass.
eBay
Micro Mini 130 Vacuum Pump DC 3V-6V 3.7V 5V Large Flow Small Negative Pressure Air Breast Pump Household Appliances Oxygen Pump
Aliexpress UK
With a7.6 m3/h flow rate, it can draw systems down to5 Pa (37.5 microns) for quick and easy servicing of AC systems employing R12, R22, R134a, R410a, and R502 refrigerants. Easily monitor the pump's oil level and quality using the built in sight glass.
eBay
Gas Analysis Pump Accessories Suction Pump Vacuum Suction Pump Negative Pressure with Stand ‑80kpa 10W DC24V/DC12V Vacuum Pump
Aliexpress UK
Description Applicable fields: Widely used in food packaging, vacuum packaging and storage of high-elastic items, handicrafts, toy production, air-conditioning fluorine, product processing and other industries, and can also be used in industries such as medicine, chemical industry, scientific research, experiment, automation tooling, etc. Matching. Features: 1. No oil lubrication, diaphragm structure, large air displacement; 2. The vacuum gauge shows the actual vacuum degree; 3. Noise 50 decibels Product parameters: Power: 1 / 6HP Air flow: 20-23L/min Speed: 1450/1700r.p.m Vacuum degree: 600mmHG Net weight: 3.4kg/7.50lb Gross weight: 3.7kg/8.16lb Product size: 28*12*17cm/11.02*4.72*6.69in Packing size: 24*12*17cm/9.45*4.72*6.69in Packing list: 1*pump.
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1PC DC 3V 3.7V 5V 6V Mini 030 Motor Pump Negative Pressure Air Pump Oxygen Diaphragm Vacuum Pump for Fish Tank
Aliexpress UK
Type: 1L Vacuum Pump. Non Slip Cushion Handle. Oil Sight Glass For Monitoring Oil Levels. Oil Drain Plug Positioned at Bottom of Oil Reservoir. Air inlet thread: 7/16 "- 20. Motor power: 150w. Product weight: 4kg.
eBay
3.7V 6V 12V Small Mini 370 Motor Diaphragm Air Pump Vacuum Pump Negative Pressure Suction Breast Pump Inflator Aquarium DIY
Aliexpress UK