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DR series

Product catalog summary

Overview: The DR Series Variable Displacement Piston Pump is designed to be compact and lightweight, offering quiet operation even at high pressure with minimal vibration. It features an aluminum casting body, precision characteristics, and a sturdy structure for high efficiency and long service life. The pump provides more compensator options than previous models.

Features: The pump includes various compensators such as the Standard Pressure Compensator (A0), Load-Sensing Compensator (HA), and several remote-controlled options with different functionalities like proportional pressure control and electronic unloading control.

Technical Data: The pump operates with petroleum-based hydraulic oils with anti-wear additives or R&O type hydraulic oils equivalent to ISO VG-32 or 46. The recommended viscosity range is 20 to 400 mm²/s, and the oil temperature should be between 0 to 60°C. Contamination should be maintained within NAS 10 grade, and a suction line filter of at least 100 μm is suggested.

Performance Characteristics: Under conditions of 800 r/min input speed, using ISO VG32 oil at 50°C, the pump's performance is characterized by its noise level, input power, efficiency, and output flow. Specific models like DR16 and DR22 have detailed performance metrics.

Ordering Information: The document provides a guide on how to order the pump with different compensator configurations, including DR16/22 models with various compensator types.

Remarks: It is crucial to ensure that the full cut-off pressure does not exceed the maximum intermittent pressure. For detailed information on compensators, contacting the manufacturer is recommended.

Catalog excerpts

DR Series Variable Displacement Piston Pump Feature : 1. Compact and light weight. 2. Quiet opeartion,even in high pressure range, with minimum vibration. 3. Aluminum casting body 4. Precision characteristics and prompt response. 5. Sturdy structure for high efficiency and long service lifetime. 6. More options of compensators than before . Technical Data Remark: Whenever setting pressure, please make sure the full cut-off pressure never exceeds the maximum intermittent pressure. A0: Standard Pressure Compensator HA: Load-Sensing Compensator GA: Remote controlled Pressure compensator GJ: Remote Pressure compensator with Proportional Pressure Control GR: Remote Pressure compensator with Electronic Unloading control GB: Remote Pressure compensator with Electronic 2 stage Pressure Control GC: Remote Pressure compensaotr with 2 stage Pressure + Electrical Unloading control GM: Remote Pressure Compensator with NG6 interface Remark: For detail of compensator, please contact with us. Handling: 1. Hydraulic Fluids: Petroleum base oil with anti-wear additives hydraulic oil, or R&O type hydraulic oils equivalent to ISO VG-32 or 46. 2 。 The recommended viscosityrage is from 20 to 400 mm /S. Oil temperature range is within 0 to 60 C. Both of above have to be satisfied for the use of the above hydraulic oils. 2. Contamination: Pleaes maintain the contamination degree within NAS 10 grade. We strongly suggest to use suction line filter of at least 100 μm.

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DR Series Variable Displacement Piston Pump Performance Characteristics Conditions: Input speed: 800r/min, Oil: ISO VG32, Oil temperature: 50° C DR16: Noise Level (1M from pump) Input Power Output Flow General performance characteristics Imput power Drain volume Output Flow Input Power Noise Level (1M from pump) Output Flow General performance characteristics Drain volume Imput power

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