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> Yellow jacket superevac 4 cfm vacuum pump #93540
Yellow jacket superevac 4 cfm vacuum pump #93540
Yellow Jacket Superevac 4 CFM Vacuum Pump # 93540
Yellow Jacket Superevac 4 CFM Vacuum Pump #93540
IMPORTANT NOTE: Photo is representative of a Yellow Jacket Vacuum Pump. Photo label may indicate CFM rating other than acual model # we're selling.
* High efficiency two-stage pump
* Vacuum indicator gauge at pump intake fitting shows evacuation process
* Heavy-duty high torque motor assures cold weather starting
* Gas ballast speeds evacuation and keeps oil cleaner
* Low operating temperature to improve efficiency and vacuum
* Large sight glass for easier oil monitoring
* Blank-off valve to isolate pump from the system
* Large oil drain valve, large oil fill fitting
* Factory rating: 15 microns
Important Issues concerning deep vacuum pumps and HVAC & Refrigeration Service:
Moisture: Moisture within sealed refrigeration systems cause CFC, HCFC & HFC refrigerants to break down, forming hydrochloric and hydrofluoric acids. These acids will attack the hermetic motor winding insulation and ultimately result in compressor failure. Several variations of acid test kits are available to determine the presence of acid. Pulling a deep vacuum (500 microns or less) is the only method which assures you've "boiled" off and removed all moisture from a sealed system. And a system which will hold a deep vacuum, is also leak-free.
Oil: It's the specially formulated, low vapor pressure vacuum pump oil that absorbs the moisture (water vapor) during the evacuation process, and this oil has a finite moisture capacity. This is why ALL vacuum pump manufacturers' instructions will state that it's important to change your pumps oil AFTER EVERY USE. You should be able to take your used vacuum pump oil to a local PepBoys, Jiffy Lube, etc. for recycling. Furthermore, the hygroscopic nature of polyolester (POE) refrigeration oils contained in systems utilizing HFC refrigerants (R410A - aka Carrier's PuronTM), R404A, R134A, may require multiple vacuum pump oil changes to effectively dehydrate, especially if the system has been open to atmosphere for more than a brief moment.
NOTE: WE ARE NOT RESPONSIBLE FOR ANY TARIFF CHARGES OR SURCHARGES ISSUED BY YOUR COUNTRY.
Local pick-up in Philadelphia is available for all our items.
