Yellow Jacket 77930 Oil Pump

The Yellow Jacket 77930 Max-Flow Deluxe Oil Pump is engineered for high-volume refrigeration oil charging in large-scale HVACR systems. Capable of delivering 3.8 ounces per stroke (approximately 8.5 strokes per quart), this manual oil pump significantly reduces labor time during routine compressor maintenance. Designed to overcome internal system pressures up to 250 PSI, the integrated foot stand provides the necessary leverage and stability when pumping against high backpressure. The versatile design ensures compatibility with all standard oil container sizes, eliminating the need for specialized adapters or messy transfers. For technicians requiring oil removal, this unit can be operated in reverse when paired with the compatible 77934 siphon hose accessory. Built for the rigors of field use, the Yellow Jacket 77930 ensures clean lubricant transfer without air contamination, making it a staple tool for any HVAC technician servicing commercial refrigeration equipment.

Key Benefits

• High Capacity Transfer: Delivers 3.8 oz per stroke to expedite oil charging in large systems.
• Pressure Resilience: Specifically rated to pump against internal system pressures up to 250 PSI.
• Universal Fit: Adjustable design fits all sizes of oil containers for maximum job site flexibility.
• Reverse Functionality: Can be used for oil removal when fitted with the 77934 siphon hose accessory.

Common Questions

What is the flow rate of the Yellow Jacket 77930?
This pump moves 3.8 oz of oil per stroke, meaning a full quart can be transferred in approximately 8.5 strokes.

Can this pump be used while a compressor is under pressure?
Yes, the pump and foot stand are designed to allow technicians to pump oil into systems with up to 250 PSI of pressure.

What oil types is this pump compatible with?
It is compatible with most standard refrigeration lubricants, including mineral, polyolester (POE), and polyvinyl ether (PVE) oils.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.