Special radial piston pumps SRK-ATEX

BIERI special radial piston pumps SRK-ATEX are extremely robust radial devices with highest reliability, even under roughest conditions and suitable for use in explosion hazardous areas.

Operating pressure	up to 700 bar
Displacement volume	0,24 up to 8,14 cm³/rev
Max. rotation speed:	1800 rpm

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[Translate to EN:] Spezial-Radialkolbenpumpen SRK-ATEX

Features	Advantages
Robust radial piston pump, valve controlled	Very high volumetric efficiency on a wide speed range
Low piston clearance	Self-venting
Bearings are designed for maximum constant pressure (700 bar)	Low pulsation
Minimized dead volume of pistons, linked together with optimized design of suction valves	Long operating lifetime
Modular pump system	Suitable for operation with fluids with reduced lubricating properties
	Ambient temperature up to -40°C

Applications

Specially designed for demanding applications with continuous pressures up to 700 bar → long economic lifetime!
Test stands
Explosion-prone hydraulic constructions (according ATEX standard)

Design

Radial piston pump of modular design
With valve controlled pump elements
Can be supplied with 3, 5 or 7 pistons per section (depending on size)
Design as multiple circuit pump on request
Special eccentric

Technical Data

Hydraulic fluid	mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range	-20 to 80°C
Ambient temperature range	-20 to 40°C (-40°C on request)
Viscosity range	5 to 220 mm²/s
Max. operating pressure	700 bar
Operation pressure suction side	-0.2 bar to 0.5 bar gauge pressure
Displacenement volume	0,24 to 8,14 cm³/rev
Filtration (recommendation)	according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Axial force onto driving shaft	can't be taken up
Radial force onto driving shaft	on request
Max. rotation speed	1800 min⁻¹
Direction of rotation	Any
Suction height	max. 500 mm
Weight	see technical data sheet
Materials	pressure flange: forged steel driving shaft: steel cover: diecast aluminium