Low pressure pumps ACD
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Product Description Flow volume: 10 - 42 l/min Max differential pressure: 7 bar Applications: Circulation, lubrication and transfer

1. Applications 1.1 Functionality The ACD pumps come in two executions; Lube Line and Fuel Line. The main difference is the shaft seal design; V-seal - optimized for light duty and T-seal - heavy duty respectively. The ACD pump is used for a number of different fluids: Lubrication oil, fuel oil, vegetable oil, hydraulic oil and other hydraulic fluids, polymers, emulsions and any non-aggressive fluid with sufficient lubricating properties. If requested, the ACD pump may be certified according to any of following classification societies: DNV, BV, LRS, ABS, RS, GL, KR or RMR. 1.2 Applications...

2. Pump model code A C D Pump series ACD Size Power rotor diameter [mm] 025 L = Low lead N = Normal lead Generation Design generation 6 Material in pump body N = Nodular cast iron Shaft seal design V = Carbon/Ni resist seal with elastomers in Viton T = Silicon Carbide/Silicon Carbide with elastomers in Viton Mounting B = Flange mounting P = Internal pressure relief valve Special design Code group omitted for standard design (A-number)

3. Technical Data 3.1 Pressure Information Pressure relief valve The pump is equipped with an integral pressure relief valve with internal return, limiting the differential pressure across the pump and protecting the pump. Should the discharge line be blocked, the relief valve will open by the pressure. The valve is adjustable for different opening pressures. The value of the pressure limit can be set at the factory and should be adjusted at installation (see Installation & Start-up instruction for low-pressure pumps). The maximum pressure accumulation is 4 bar. The valve has a maximum set...

3. Technical Data 3.3 Sound level Typical pump sound levels refer to free field conditions at a distance of 1 m from the pump. Noise of driver excluded in the quoted figures. The sound levels are measured at a discharge pressure of 5 bar, 2940 rpm and viscosity 40 cSt, according to ISO-3741. Sizes 025 Sound level dB [A] 58 3.4 Moment of Inertia Moment of intertia [10-6 kgm2] Size 025 Value 34 3.5 luid viscosity F Lube Line seal (Seal version V): 1,4 – 800 cSt Fuel Line seal (Seal version T): 1,4-1500 cSt For higher viscosity, contact IMO AB.

4. Design 4.1 Ball bearing No ball bearing for the pump is needed since the forces are handled by the ball bearing of the motor. 4.2 Material & design Model Material pump Material rotor Material idler Material seal Material Elastomers Pearlitic cast iron, surface treated Carbon/Ni resist ACD NT Nodular cast iron Steel, surface treated Steel, surface treated Pearlitic cast iron, surface treated ACD NV Nodular cast iron

5. Performance Guide Typical performance values at 5 bar Flow calculated at 26 cSt, power at 260 cSt.

Pos No Denomination Shaft seal Rear cover Gasket Valve cover Sealing washer O-ring Regulating screw Retaining ring Valve piston Valve spring Complete power rotor Shaft Locking screw Shaft sleeve Idler rotor Pump body Drip nipple Screw Front cover O-ring Notes: - Components with Pos No within parenthesis are parts of subassembly

Drawing remarks: (1) Drain. ISO G3/8 (2) For counter flanges dimensions see Pump unit dimensions page 12 Notes: - Dimensions in mm - Bare shaft pump approximate 8kg

9. Pump Unit dimensions

Drawing remarks: (1) Drain. ISO G3/8 (2) Butt weld counter flanges of IMO design necessary *) Dimensions valid for Brook Crompton motor WU-DA 71 Notes: - Dimensions in mm - Pump unit approximate 16kg 9. Pump Unit dimensions

10. Accessories A bare shaft pump (Fig. 1) can be ordered with the accessories in fig. 2-5. Fig. 1 Bare shaft pump 10.2 alve block V Two pump units can be mounted to a valve block with inlet and outlet pipe connections. The valve block solution saves space and facilitates installation, maintenance, service and supervision. Spare parts for these pumps are easily available from stock. For detailed information and know-how about service, see the Maintenance & Service Instruction for ACD-pumps or contact IMO AB.

IMO AB: P.O. Box 42090, SE 126 14 Stockholm, Sweden. Telephone: +46 8 50 622 800 For latest updates, check: www.imo.se