Air Operated Double Diaphragm Pump, 44 GPM, 115 PSI

Air operated double diaphragm pump delivers fast, controlled transfer of waste oil, diesel, grease, and other compatible fluids while reducing downtime in shop and industrial setups. The bolted aluminum alloy body supports dependable sealing, and the dual-layer PTFE diaphragms help handle corrosive or dirty liquids. Built for pneumatic efficiency with standard port sizes, it integrates into existing lines for smooth fluid handling and easier maintenance.

• Delivers up to 44 GPM flow for quicker fluid transfer and less waiting at the drum or tank


• Handles up to 115 PSI air pressure for strong output across longer runs and higher lift needs


• Includes 2 extra PTFE diaphragms to keep you running and reduce unexpected downtime


• Fits 1.5 in inlet/outlet and 1/2 in FNPT air inlet to connect with common piping and fittings


• Reduces noise with an integrated silencer and detachable design for simpler cleaning and service

Designed for demanding fluid transfer, this pneumatic transfer pump supports waste oil collection, hydraulic fluid movement, diesel handling, and general shop applications where electricity isn’t ideal. The full-bolted construction helps resist loosening under vibration, while the diaphragm-driven design supports steady pumping with reduced risk during intermittent or low-fluid conditions. Use it in automotive, maintenance bays, workshops, water treatment, coatings, and more. Grab yours today and keep your operation moving with less interruption.

• Body material: Aluminum alloy


• Diaphragm material: PTFE (dual-layer)


• Max flow rate: 44 GPM


• Max air pressure: 115 PSI


• Max head lift: 226 ft / 69 m


• Max suction lift: 16.4 ft / 5 m


• Air inlet: 1/2 in FNPT


• Inlet/Outlet: 1.5 in (3.8 cm)


• Max particle/grain diameter: 0.2 in / 4.5 mm


• Net weight: 25.4 lb / 11.5 kg