Group 20 High-Low Pumps

European 4 bolt flange
1:8 tapered shaft
Common inlet & outlet
Front pump: 10 cc/rev, Rear pump: 18 cc/rev, Rotation: Clockwise from shaft view
Unloading valve opening pressure 60-65 bar
From 4.5 to 30 cc/rev displacement options
First stage nominal pressure 200 bar, nominal speed 1500 rpm

Many systems require a high volume at low pressure for rapid traverse of a vise or tool, and then low volume, high pressure for clamping or feeding. This can be accomplished by a hi-lo circuit using two pumps. During rapid traverse, both pumps supply the system. When pressure rises during clamping or feed, the large-volume main pump unloads and the small pump maintains pressure. These gear pumps offer the advantage of requiring lower power of the motor.

Hidros offer high-low tandem gear pumps with integrated valves as below:

Applications:

Waste compactors
Log splitters
Clamp mechanisms
Crimping machines
Metal forming machines etc.

Code	Displacement Front pump cc/rev	Displacement Rear pump cc/rev	Max. pressure Front pump bar	Max. pressure Rear pump bar	Max. speed rpm	Rotation from shaft view
H22C5/12X815R	5	12	250	70	3000	Clockwise
H22C3.5/11X815R	3.5	11	250	70	3000	Clockwise
H22C3.5/6.5X815R	3.5	6.5	250	70	3000	Clockwise
H22C4.5/7X815R	4.5	7	250	70	3000	Clockwise
H22C10/18X815R	10	18	200	70	3000	Clockwise
* Unloading valve opens at 70 bar and oil returns to inlet from rear pump. Only front pump provides flow to the system. Ports are flanged as standard. For BSP threaded ports, ordering code should be 22C…/…X815RG.

Based on 0 reviews

0.0 overall

Be the first to review “Group 20 High-Low Pumps”

You must be logged in to post a review.

There are no reviews yet.