Danfoss D1P-145-R-A-TPE5-S-D4-N1-NN-035-350-NN-NN-FS-FS-NNN-NNN
Variable Displacement Pump
The Danfoss D1 pump series are high performance variable axial piston pumps designed primarily for open circuit hydraulic systems used in heavy duty mobile applications. Danfoss D1P open circuit high power axial piston pumps are designed to fit a flexible range of applications. Robust, reliable and equipped with a broad range of controls, with D1P you gain efficiency and optimization even in the harshest of conditions. Choose a pump that makes a difference and join us in pursuing global change for better.
The D1P pump family meets the highest pressure and flow needs of new machine applications requiring variable displacement open-circuit flow. Designed for heavy-duty mobile and industrial applications in the high-pressure range (up to 350 bar), the D1P family is available with a variety of control options and is robust for harsh conditions.
Control options
Mechanical power control
Electric power control
Pressure compensated control
Remote pressure compensated control
Electric proportional displacement control
Load sensing control
Features and benefits
Robust design for harsh conditions.
Swashplate, servo-controlled design, with proven reliability and performance.
Angled piston bore design improves self-priming capability.
The spherical valve plate and cylinder block interface provide stable cylinder block rotation, thus achieving high efficiency.
Integral charge pump option allows the pump to run at higher speed and achieve good cold start performance.
Full through-drive capability is suitable for adding axial piston pumps and gear pumps.
Optimized cradle bearing improves pump service life.
PLUS+1® compliant controls.
Can be used together in combination with other Danfoss Power Solutions products in the overall hydraulic system, such as:
‒ Pumps (S45, S90, H1P, gear pumps, etc.)
‒ PVG valves
‒ Motors (S90, H1B, etc)
Displacement: 145cc/rev (8.85 in3) Max Variable Displacement
Rotation: Clockwise (CW)
Product Version: A
Control Type: Power Control + Pressure Compensated Control + Positive Electric
Displacement Control (24V DEUTSCH, 2-pin) w/Manual Override (The control outline and size is the same as the 193/260 TPE2 control)
Input Shaft: 65: Spline, SAE J744 1.1/6", 14T 12/24 DP
S130/145/193/260 :Spline, SAE J744 1.3/4", 13T 8/16 DP
Weight: 74KG (163 lbs)
Ratings and performance data for D1 pumps are based on operating with premium hydraulic fluids containing oxidation, rust, and foam inhibitors. These include premium turbine oils, API CD engine oils per SAE J183, M2C33F or G automatic transmission fluids (ATF), Dexron II (ATF) meeting Allison C-3 or Caterpillar T0‑2 requirements, and certain specialty agricultural tractor fluids. For more information on hydraulic fluid selection, see Danfoss Power Solutions publications BC152886484524 Hydraulic Fluids and Lubricants, Technical Information, and 520L0465 Experience with Biodegradable Hydraulic Fluids, Technical Information.
D1P viscosity
Minimum Viscosity This should only occur during brief occasions of maximum ambient temperature and severe duty cycle operation.
Maximum This should only occur at cold start. Pump performance will be reduced. Limit
Viscosity speeds until the system warms up.
Maintain fluid viscosity within the recommended range for maximum efficiency and pump life.
D1P temperature overview
Minimum Temperature Relates to the physical properties of the component materials. Cold oil will not affect the durability of the pump components. However, it may affect the ability of the pump to provide flow and transmit power
Maximum Temperature Relates to material properties. Don’t exceed it. Measure maximum temperature at the hottest point in the system. This is usually the case drain.
D1P fluid velocity
Choose piping sizes and configurations sufficient to maintain optimum fluid velocity, and minimize pressure drops. This reduces noise, pressure drops, overheating and maximizes system life and performance.
Recommended fluid velocities
System lines - 6 to 9 m/sec
Suction line - 1 to 2 m/sec
Case drain - 3 to 5 m/sec
Typical guidelines; obey all pressure ratings.
Velocity equations
SI units
Q = flow (l/min)
A = area (mm²)
Velocity = (16.67•Q)/A (m/sec)
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