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Design Flexibility • Engineering Assistance
Most Pumps in Stock for Immediate Shipment

Rotary Piston Pump
Up to 40 GPM - Series 40

Rotary Piston Pumps Up to 40 GPM - Series 40

40AX
This unique design offers all the advantages of a relief valve placed directly in the line. This specially constructed relief valve bypasses flow directly from the discharge to the suction port. Discharge may be restricted of blocked entirely without shock or chatter. However heat will be generated over time. Design is extremely compact because the valve is a part of the pump head itself. For additional details see description under Model 20DX.
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40A
To efficiently move a liquid from point "A" to point "B" the TriRotor constant delivery pumps, this is just one size, is your choice. Due to the sliding piston action no change need be made in the "fit" of the pumping members in order to handle liquids of various viscosities. 40 GPM of 40 SSU (4 CPS) liquid at 600 RPM down to 8 GPM of 100,000 SSU (21,625 CPS) pumpage at 150 RPM. List / Compare | Quick Quote

Mounted Unit Drawings
Series 40 / Belt Driven (J6004)
Series 40 / Gear Motor (J6035)
Series 40 / Inline But Offset Helical Gear Reducer (J5955)
Series 40 / Spur Gear & Pinion Reduction (J4625)