DP21 Medium‑High Pressure Vane Pump
Product Overview
DP21 Medium‑High Pressure Vane Pump is a fixed‑displacement double Hydraulic Vane pump. This reliable hydraulic pump adopts DP2 plus DP1 combined structure, delivering two independent flow outputs for medium‑high pressure industrial hydraulic system and multi‑action hydraulic‑driven Machine.
This double Hydraulic Vane pump features balanced vane design to lower pressure pulsation and running noise. Two separate pumping chambers can supply hydraulic oil to different circuits of one hydraulic system at the same time. It supports interchangeable DP2 and DP1 cartridge kits for convenient on‑site maintenance. It is widely installed on small‑medium hydraulic presses, packaging machinery and automation equipment, acting as stable power source for industrial Machine.
Technical Specifications
‑ Model: DP21 Medium‑High Pressure Vane Pump
‑ Product Type: Fixed‑displacement double Hydraulic Vane pump, medium‑high pressure hydraulic pump
‑ Structure: DP2 + DP1 double pump combination
‑ Displacement: Multiple displacement combinations optional for front and rear pump sections
‑ Continuous rated pressure: Up to 17.5 MPa
‑ Maximum rotating speed: 1800 rpm
‑ Mounting: Standard flange mounting
‑ Shaft: Standard keyed drive shaft
‑ Rotation direction: Clockwise as standard, counter‑clockwise optional
‑ Maintainable parts: Interchangeable DP2 & DP1 cartridge kit
‑ Working medium: Anti‑wear hydraulic mineral oil for industrial hydraulic system, ISO‑VG32 / VG46 recommended
‑ Operating oil temperature: ‑20℃ ~ +80℃
‑ Key Features: Balanced vane construction, dual independent flow output, compact layout, low pressure ripple, high volumetric efficiency, modular cartridge maintenance, stable continuous performance for light‑to‑medium‑duty industrial Machine
Working Principle
As a dual‑unit Hydraulic Vane pump, this hydraulic pump integrates two independent pumping assemblies inside a single pump housing and driven by a shared shaft. Driven by input shaft, rotors and vanes rotate inside respective cam rings. Centrifugal force pushes vanes closely against inner surface of cam rings. Periodic volume variation completes oil suction and pressure oil delivery, providing two separate pressure flows for the whole hydraulic system. The balanced‑vane structure counteracts radial hydraulic force, reducing vibration and noise during long‑time running of the Machine.
When vanes, cam ring or side plates become worn, the hydraulic pump will cause internal leakage, pressure drop, insufficient flow and abnormal noise. Replacing matched DP series cartridge kits can quickly restore full working performance of your hydraulic system.
Core Advantages
1. Balanced vane structure reduces pressure pulsation and noise, providing steady flow and pressure output for light‑medium load industrial Machine.
2. Dual independent flow output supplies oil for two different hydraulic circuits simultaneously, optimizing layout of complex hydraulic system.
3. Modular cartridge‑in‑housing design supports quick field overhaul. There is no need to remove the whole hydraulic pump from the Machine, effectively cutting downtime of the hydraulic system.
4. Standard mounting and port dimensions, excellent interchangeability for original replacement and existing hydraulic system retrofitting.
5. Compact double‑pump structure saves installation space, keeps high volumetric efficiency under continuous medium‑high‑pressure operating conditions.
Application Range
DP21 medium‑high‑pressure double Hydraulic Vane pump is an essential dual‑flow power‑supply hydraulic pump for industrial hydraulic system. Widely used in small‑medium hydraulic presses, packaging machinery, machine tools, automated auxiliary equipment and other hydraulic‑driven industrial Machine. Well‑received by hydraulic repair workshops, equipment integrators and global spare‑parts distributors.
