7 GPM John S. Barnes 520374800 2 STAGE HYDRAULIC PUMP
new, John S. Barnes Model 520374800 two stage HI/LO pressure hydraulic gear pump. Ideal for applications such as log splitters, presses and other equipment where rapid movement of the cylinder at low pressure is required prior to automatically switching to the high pressure mode to meet load requirements. The change from LO to HI pressure is automatic. Minimum of 4 HP required for gas engine use
Displacement: 0.25 cu. in. / rev. HI press. stage 0.43 cu. in. / rev. LO press. stage
Pump Type Gear
Pressure: 3000 PSI
Speed: 3600 RPM
Flow: 3.5 GPM HI press. stage 7 GPM LO press. stage
Do you have the motor ( model no.: 40665D-L75-2 ) of the Hi-lo treatment table (John S. Barnes Corp.)? many thanks.
A: No. Any Barnes pumps or motors we have are strictly random surplus items and we do not have a complete range available.
Date Submitted: 07/28/2018
What horsepower is needed for this pump?
A: Minimum of 4 HP required for gas engine use
Date Submitted: 04/25/2018
Why does this pump have 3 ports in the picture?
A: Very little information was provided with this pump. What we know is listed. It appears to have been designed for a specific purpose which would need the separate outlet ports, but we have no information to clarify.
Date Submitted: 12/15/2017
What coupler is used for this pump?
A: We do not have a coupler to work with this pump. One would have to be manufactured, most likely.
Date Submitted: 04/10/2017
The rotation for this pump is looking at from the shaft side (front). correct?
A: Yes, we call out rotation as facing the shaft.
Date Submitted: 01/04/2017
Will a 3 hp 3600 rpm tefc motor run this at full psi?
A: No. While it may be possible to trigger the unloader with that HP if it's set low enough, the max pressure possible continuously at that flow with 3 HP is just over 1250 psi.