Pumping elements PEH

BIERI Pumping element PEH are high reliable, robust, suited for use in manually operated pumps and for pumps in radial design with an eccentric shart bearing as drive.

Operating pressure: up to 1000 bar
Stroke: 0,16 up to 1,23 cm³

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[Translate to EN:] Pumpenelemente PEH
Features Advantages
Self priming High reliability
The direction of flow is independent of the direction of rotation of the actuator The direction of flow is independent of the direction of the actuator
The direction of flow is determined by the suction and pressure valves and cannot be reversed Designed for very high pressures

Applications

  • For manuelly operated pumps in which the element is actuated by a lever
  • For pumps in radial design with an eccentric shaft bearing as drive

Design

  • Consists of a cylinder with built-in nonreturn valves in the suction and the pressure port, a piston and a piston return spring
  • The medium is sucked at the front, the pressure outlet is at the side of the piston movement
  • The direction of the flow is determined by the suction and pressure valves and can not be reversed
  • The pump element must always be immersed in the medium

Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -20 up to 80°C
Viscosity range 12 bis 400 mm²/s
Max. operating pressure up to 1000 bar, see technical data sheet
Filtration (recommendation) According to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Max. speed 2000 rpm
Installation position Any
Suction -0.042 bar (gives max. 500 mm of suction height with hydraulic oil)
Fixation screws (not included in the scope of supplier) M10 x 30
Quality 8.8
Tightening torque 40 Nm
Weight See technical data sheet
Material Piston: Case-hardened steel
Cylinder: Heat treated steel