Concentric AB-W300 Pump-EU-2011-7 3 W300 DESCRIPTION The W300 pumps come in single configuration and have a two piece modular design. All, mounting flange, and rear cover are manufactured of high strength aluminium alloy. For optimum strength, gears and shafts are precision machined as a one-piecepart. The 11-tooth gear geometry has been optimized for lownoise level and lowpressure pulsation. All shaft bearing surfaces are continually cooled and lubricated by a controlled flow of fresh oil. This permits operation across a wide speed range at very high loads. Extra large slide bearings help guarantee a long service life. A wide range of mounting flanges and port sizes are available to meet all international standards. General data Displacement V 0.8 ... 5.7cm3 Speed n 800 ... 6000 rpm Pressure ratedpressure pl up to230bar intermettent pressure pll up to 255 bar Operating temperatures t up to 90°C Average volumetric efficiency 97% The maximum values for n, pl and t for a given pump specification may be applied sim-ultaneously. Options • Rectangular flanges, through bolt model. • Tapered shaft with key, tang shaft. • Thread ports of flange ports. • Clockwise or anti-clockwise rotation. • Integrated valve features. Operating pressure range Inlet port: continuous, minimum -0,20 bar intermittent, minimum -0,35 bar maximum +2,00 bar Outlet port (See tables on pages 4-6) Product has been tested to500,000 cycles at pll. Pressure pll is permitted at maxi. 10 sec loaded following 4 sec minimum unloaded. Above represents performance wich can be expected from units incorporating flange flange port styles. Speed range Minimum speed for all pump sizes depends on the pump model in question and can be identified fromTables below onwards for respective models. Maximum speed for single pumps depends on the pumpmodel in question and canbe identified fromTables onwards for respectivemodels. Noise performancedataaccordingtoDIN45635. Typical levels for pump type W3B1-2,5 at 160 bar using mineral oil with viscosity of 40mm2/s and at temperature of 50° C at different speeds: 1500 min-1 2300min-1 3000min-1 52 dB(A) 56 dB(A) 57 dB(A) Hydraulic fluids. The use of HL-or HLP-hydraulic oil according to DIN 51 524 is recommended. The permissible viscosity for all W3B pumps ranges from 800 to 12 mm2/s. The permissible cold start viscosity is 2000 mm2/s. We recommend to contact Concentric before using fire resistant or bio-degradable fluids. Temperature range Amb. temperature, mini.-25°C; maxi. +80° C Fluid temperature, continuous operation, maxi. +80° C short termoperation, maxi. +90° C Please note Viscosities -when operating at above temperature limits-have to remain within the range specified under ”Hydraulic Fluids”. Fluid cleanliness Fluid cleanliness according to ISO 4406/1986 Code 18/14 or better is required in order to assure the pump’s high level of efficiency in the long term. Drive arrangement Flexible couplings are preferred for direct drives. Please contact Concentric for indirect drive requirements. Mounting position As required. Symbol Single pump. PERFORMANCE DATA = Type = Series = Design revision = # of sections = Seal material = Displacement per section 4 sec. at minimum continuous pressure intermittent pressure 10 sec. at minimum Time Pressure pI pII pII pI Model code example for a single pump 1 2 3 4 5 6 7 8 9 10 11 WP 03 B 1 B 008 R 20 MA 124 N = Rotation = Mounting flange = Drive shaft = Portings = Valve options 1 2 3 4 5 6 7 8 9 10 11 quality products for mechanical & fluid power ~ jbj Techniques Limited, www.jbj.co.uk UK distributor for Concentric Hydraulics
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