3 Operating pressure range Inlet port: continuous, minimum -0,20 bar intermittent, minimum -0,35 bar maximum +2,00 bar Outlet port Product has been tested to 1,00,000 cycles at pll. Pressure pll is permitted at maxi. 20 sec loaded following 10 secminimumunloaded. Product has been tested to 500,000 cycles at pII. Above represents performancewich canbe expected fromunits incorporatingflange flangeport styles. Speed range Minimum speed for all pump sizes is n = 500 rpm at maximum pressure pI. Maximumspeed for single pumps depends on the pumpmodel in question and can be identified from Tables onwards for respective models. Maximum speed for multiple pumps is the lowest one specified on Tables onwards for respective models. Noise performance data according to DIN 45 635. Typical levels 200 barusingmineral oilwithviscosity of 40mm2/s and at temperature of 50° C at different speeds: W15B1-38 68dB(A) at n = 1500 rpm W15B1-38 74dB(A) at n = 2300 rpm W15B1-38 76dB(A) at n = 3000 rpm Hydraulic fluids. The use of HL-or HLP-hydraulic oil according to DIN 51 524 is recommended. The permissible viscosity for allW3Apumps ranges from 750 to 10 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, comntinuous operation, maxi. +90° C short term operation, maxi. +105° 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 Flexibble couplings are preferred for direct drives. Please contact Concentric for indirect drive requirements. Pumps with outboard side load bearing are available. Mounting position As required. Symbol Single pump Double pump Triple pump Quadruple pump PERFORMANCE DATA W1500 DESCRIPTION The W1500 pumps come in single or multiple configuration of up to four sections. The basic pump is of a three piecemodular design. Mounting flange and rear cover are of cast iron. The pump body is manufactured from high strength aluminium alloy. For optimum strength, gears and shafts are precision machined from one piece steel forgings. The 14-toothgear geo-metry has been optimized for low noise level. All shaft bearing surfaces are Teflon® coated and sizes are calculated for long service life. They are continually cooled and lubricated by a controlled flow of fresh oil. This enables operation across awide speed range at very high loads. Multiple pumps in theW1500 range are very compact. The drive shaft is capable of transmitting high torque even to the rear section. Each section has its own inlet and pressure ports. = Type = Series = Design = # of sections = Seal material = Displacement per section = Rotation = Mounting flange = Drive shaft = Portings = Valve options = ’N’ Specials Awide range of mounting flanges and port sizes are available to meet all international standards. General data Displacement V 19 ... 50cm3 Speed n 500 ... 3300 rpm Pressure rated pressure pl up to 276 bar intermettent pressure pll up to 300 bar Peak pressure pll up to 330 bar Operating temperatures t up to 105° C Average volumetric efficiency 97% The maximum values for n, pl and t for a given pump specification may be applied sim-ultaneously. Options • SAE mounting flange, through bolt model. • Splined, tapered or straight shaft with key, tang shaft. • Thread ports of flange ports. • Clockwise or anti-clockwise rotation. • Integrated valve features. Model code example for a double pump 4 sec. at minimum continuous pressure intermittent pressure 10 sec. at minimum Time Pressure pI pII pII pI 1 2 3 4 5 6 7 8 9 10 11 12 WP 15 A 1 B 190 R 04 DA 158 N N 1 2 3 4 5 6 7 8 9 10 11 12 quality products for mechanical & fluid power ~ jbj Techniques Limited, www.jbj.co.uk UK distributor for Concentric Hydraulics
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