Very special double stage pumps with unloading valves. HL pumps are ideal for applications requiring a quick approach and/or return of the actuator at low loads (defined by the sum of the flows of the first and second stage) and slow motion of the actuator at high loads.
Marzocchi High-Low Multiple Pumps(HL)
First stage Low displacement high pressure: From 1,4 cm³/rev to 4,1 cm³/rev – P1 = 250 bar
Second stage High displacement low pressure: From 4,1 cm³/rev to 13,8 cm³/rev – (Pressure set by unloading valve)
Unloading valve: Standard setting 30 bar
RPM pump range: From 1,000 rpm to 3,500 rpm
Ports: Common inlet. Common outlet. Side ports code FG; FA
High-low hydraulic gears pump is the very ideal pump for applications which require a quick approach and/or return of the actuator at low loads and slow motion of the actuator at high loads.
Related Products
