Danfoss XD User guide

Technical Information
D Series and XD Series
Fixed Displacement Gear Pumps
www.danfoss.com
D Series and XD Series Gear Pumps
Revision history Table of revisions
Date Changed Rev
April 2020 Corrected XD Model Code Information 0202
December 2019 0201
October 2019 First edition 0101
2 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps

Contents

General Information
Overview..............................................................................................................................................................................................6
Features and benefits..................................................................................................................................................................... 6
Quick chart overview...................................................................................................................................................................... 6
Typical applications.........................................................................................................................................................................7
Design...................................................................................................................................................................................................7
System schematic.............................................................................................................................................................................8
Product features................................................................................................................................................................................9
Technical Specifications
Technical specifications...............................................................................................................................................................10
Fluid specifications........................................................................................................................................................................10
Inlet pressure...................................................................................................................................................................................10
Operating Parameters
Sizing equations.............................................................................................................................................................................11
Pressure............................................................................................................................................................................................. 11
Temperature and viscosity......................................................................................................................................................... 12
Speed..................................................................................................................................................................................................12
Hydraulic fluid.................................................................................................................................................................................13
Filtration............................................................................................................................................................................................ 13
Filters.............................................................................................................................................................................................13
Selecting a filter.........................................................................................................................................................................13
Reservoir...................................................................................................................................................................................... 13
Line sizing......................................................................................................................................................................................... 14
Pump life........................................................................................................................................................................................... 14
Pump shaft connection................................................................................................................................................................14
Radial and axial loading...............................................................................................................................................................15
D Series Model Code
Single pump order code..............................................................................................................................................................16
DE1: D series cast iron gear pump, single section........................................................................................................ 16
A Rotation - viewed from drive shaft........................................................................................................................... 16
B1 Displacement..................................................................................................................................................................16
B2 Input shaft........................................................................................................................................................................17
C Mounting flange..............................................................................................................................................................17
D Rear cover: Port options, integrated valves, and auxillary flange................................................................. 18
E Flow control valve setting............................................................................................................................................ 19
F Pressure control valve setting.....................................................................................................................................20
H Assembly Screws - depending on rear cover........................................................................................................21
J Nameplates.........................................................................................................................................................................23
K Special feature.................................................................................................................................................................. 23
Two section (tandem) pump order code.............................................................................................................................. 23
A Rotation - viewed from drive shaft.................................................................................................................................23
B1 Displacement.......................................................................................................................................................................24
B2 Input shaft.............................................................................................................................................................................24
C Mounting flange................................................................................................................................................................... 25
R Ports - First section............................................................................................................................................................... 25
S Displacement - Second section........................................................................................................................................26
D Rear cover: Port options, integrated valves and auxillary flange........................................................................26
E Flow control valve.................................................................................................................................................................28
F Pressure control valve..........................................................................................................................................................29
H Assembly screws...................................................................................................................................................................30
J Nameplate................................................................................................................................................................................33
K Special features......................................................................................................................................................................33
Three section (triple) pump order code.................................................................................................................................33
A Rotation - viewed from drive shaft.................................................................................................................................34
B1 Displacement - First section........................................................................................................................................... 34
B2 Input shaft.............................................................................................................................................................................34
C Mounting flange................................................................................................................................................................... 35
L Ports - First section................................................................................................................................................................35
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D Series and XD Series Gear Pumps
Contents
M Displacement - Second section......................................................................................................................................36
R Ports - Second section.........................................................................................................................................................37
S Displacement - Third section............................................................................................................................................ 37
D Rear cover: Port options, integrated valves and auxiliary......................................................................................38
E Flow control valve.................................................................................................................................................................40
F Pressure control valve..........................................................................................................................................................40
H Assembly screws...................................................................................................................................................................41
J Nameplate................................................................................................................................................................................41
K Special feature........................................................................................................................................................................42
Four section (quad) pump order code...................................................................................................................................42
A Rotation - viewed from drive shaft.................................................................................................................................42
B1 Displacement - First section........................................................................................................................................... 43
B2 Input shaft.............................................................................................................................................................................43
C Mounting flange................................................................................................................................................................... 44
L Ports - First section................................................................................................................................................................44
M Displacement - Second section......................................................................................................................................45
N Ports - Second section........................................................................................................................................................ 45
P Displacement - Third section............................................................................................................................................46
R Ports - Third Section.............................................................................................................................................................47
S Displacement - Fourth section.........................................................................................................................................47
D Rear cover: Port options, integrated valves and auxiliary flange........................................................................48
E Flow control valve.................................................................................................................................................................50
F Pressure control valve..........................................................................................................................................................51
H Assembly screws...................................................................................................................................................................51
J Nameplate................................................................................................................................................................................52
K Special feature........................................................................................................................................................................52
D Series Options
Shaft options....................................................................................................................................................................................53
Mounting flanges...........................................................................................................................................................................54
Multiple pump port options...................................................................................................................................................... 56
Rear cover - port options.............................................................................................................................................................58
Integrated Priority Flow Divider..........................................................................................................................................62
Integrated Priority Flow Divider..........................................................................................................................................64
Integrated Steering Cover.....................................................................................................................................................64
Integrated Steering Cover.....................................................................................................................................................65
Load Sense Priority Flow Valve............................................................................................................................................66
Pumps with Load Sense Priority Flow Valves.................................................................................................................67
D Series Dimension Drawings
One Section - Single......................................................................................................................................................................69
Two section - Tandem..................................................................................................................................................................70
Three Section - Triple....................................................................................................................................................................71
Four Section - Quad...................................................................................................................................................................... 72
D Series Performance Data
Flow performance..........................................................................................................................................................................73
XD Model Code Information
A Rotation - viewed from drive shaft...................................................................................................................................... 78
B1 Displacement - front section............................................................................................................................................... 78
B2 Input shaft.................................................................................................................................................................................. 78
C Mounting flange.........................................................................................................................................................................79
R Ports - first section......................................................................................................................................................................79
S Displacement - rear section....................................................................................................................................................79
D Rear cover.....................................................................................................................................................................................79
E Flow control valve...................................................................................................................................................................... 80
F Pressure control valve...............................................................................................................................................................80
H Assembly screws........................................................................................................................................................................ 80
J Name plate.................................................................................................................................................................................... 80
K Special features...........................................................................................................................................................................80
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D Series and XD Series Gear Pumps
Contents
XD Options
XD Shaft options.............................................................................................................................................................................81
XD Mounting flanges....................................................................................................................................................................81
XD Dimension Drawings Information
Dimensions.......................................................................................................................................................................................84
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Danfoss | April 2020 BC319684134607en-000202 | 5
300
250
200
150
100
50
0
0
10
20
30 40 50
Displacement
cm
3
/rev
P
ressure
psi
P107 949E
Group 3 Gear Pump
D SERIES Cast Iron Gear Pump
Group 2 Gear Pump
Bar
in3/rev
4000
3000
2000
1000
0
1.0
0
3.0
3.0
4.0 5.0
6.0
60 70
80 90 100
Group 1 Gear Pump
XD SERIES Cast Iron Gear Pump
D Series and XD Series Gear Pumps

General Information

Overview

The D Series fixed displacement gear pump has been specifically designed for demanding mobile equipment applications where maximum performance is required at peak power levels and operating temperatures.
The design integrates cast iron construction with pressure balanced thrust plates to deliver consistent efficiency across the entire operating range of pressure, speed, and temperature; all in an industry­leading package size that maximizes power density.

Features and benefits

High strength cast iron construction allows consistently efficient performance and long life in continuous operation at 276 bar [4000 psi] and peak conditions of 303 bar [4400 psi].
Custom engineered bearings, pressure-balanced load plates, and viton seals optimize internal lubircation allowing for long life with intermittent fluid temperatures up to 115 °C [239 °F] and fluid viscosities as low as 8 mm2/sec (cSt) [36 SUS].
Compact three-piece design maximizes power density and creates one of the shortest multisection pumps (with up to four pumping sections) in the global marketplace.
Bearings located in the front flange increase radial/axial load carrying capability and eliminate the need for most bolt-on outrigger bearings.

Quick chart overview

The D Series pump blends the traditional Group 2 (SAE-A) and Group 3 (SAE-B) frame sizes in a single package with displacements from 7 to 45 cm3 (0.43 to 2.75 in3).
These displacements, in addition to a wide variety of shafts, flanges, ports, and integrated valve options can be used in virtually any combination to offer greater design flexibility and meet specific application requirements.
Gear pumps quick chart overview
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1
3
2
7
5
4
6
8
D Series and XD Series Gear Pumps
General Information

Typical applications

The D Series gear pump is commonly applied in the following type of applications:
Wheel loader - Aggressive duty cycles with continuous working pressures above 250 bar [3600 psi]
Mining equipment - Increased exposure to system contamination in a corrosive environment
Skid steer loaders - Multiple pump combinations with short length and common inlets
Work function attachments - Rapid loading of cylinders/motors in high bulk modulus systems causing pressure rise rates greater than 3000 bar/sec
Agricultural sprayers - Pumps with integrated valves including priority flow dividers and load sense steering
Pavers - D pumps integrated with other Turolla components including variable displacement piston pumps, aluminum gear pumps and cartridge valves
Fan drives - High levels of performance with elevated temperatures and minimal oil viscosities and restrictive envelope dimensions

Design

1. High-quality, heat-treated alloy steel integral gears and shaft
2. High-strength ductile iron body and covers
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3. Heavy-duty low-friction sleeve bushings
4. Pressure balanced bronze-on-steel thrust plates
5. High temperature Viton seals
6. Optional: flow control with load sensing priority flow or factory preset fixed priority flow divider valve
7. SAE-A/SAE-B 2-bolts mounting flange
8. Optional: Side or rear port options
Cast iron housings, bearings
The three piece structural members of the pump are made of high-strength cast ductile iron. Cast iron provides contamination resistance, thermal stability and the strength needed for consistently high levels of performance and durability needed in demanding off highway applications.
Heavy-duty low friction PTFE-lined sleeve bushings are optimized to provide long life in low viscosity, high pressure conditions. The bearings are located in the front mounting flange, rear cover, and bearing plate (for multiple section pumps) and allow the D pump to be 20% shorter than a typical bearing block
Microcontroller (PLUS+1TM)
Filter
T3
T2
T1
Temperature sensors
D Series gear pump
D Series gear motor
RESERVOIR
DIESEL ENGINE
P107 929E
case drain
CANBUS J1939
D Series and XD Series Gear Pumps
General Information
design pump. In addition, the proximity of the front bearing to the mounting flange increases the radial load capacity of the pump, eliminating the need for most bolt-on outrigger requirements.
Pressure balance, sealing
The pump incorporates two steel-backed bronze thrust plates seated in depressions in the mounting flange, rear cover, and bearing plate (for multiple section pumps). Underneath the front plate (known as the deflecting plate) is the load seal.
The E-shaped load seal distributes system pressure underneath the plate and enables the plate to deflect and maintain a tight sealing surface against the side face of the gears.
The tight sealing action allows the pump to maintain very high levels of volumetric efficiency, even when operating in extreme temperature, pressure and speed conditions.
One-piece gear design
All D Series pump gear shafts are of one-piece design. This enables the shaft to provide uniform high strength and accurate gear profile relative to the journals for smooth mesh operation. The integral gear shafts are made of heat treated AISI 8620 steel, manufactured to precise tolerances and surface finishes, for maximal life and minimal leakage. This integral design eliminates the potential problems of fatigue stress and gear face mismatch often associated with two-piece gear shaft designs.

System schematic

Multiple pump configuration
D Series pumps can be coupled together to produce tandem, triple and even quadruple section units. The interconnecting chambers accommodate fluid flow between sections and allow the number of inlet connections to be minimized. Systems that require operation with different fluids and/or reservoirs can be accommodated with sealed auxiliary covers between sections.
Gear Pump/Gear Motor Fan Drive System with Electronic Control
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D Series and XD Series Gear Pumps
General Information

Product features

Features Description Construction
Displacements Continuous Pressure Peak Pressure Speed Mounting Shaft (types) Ports Fluid viscosity Filtration requirement Fluids Operating
temperature* Configurations
Integrated valve options
*
Temperature and viscosity requirements must be satisfied concurrently.
Heavy duty ductile iron 3-piece construction with pressure balance load plates and viton seals
7 to 45 cm³ [0.43 to 2.75 in3/rev]
276 bar [4000 psi] up to 32 cm³ [1.94 in3/rev]
303 bar [4400 psi] up to 32 cm³ [1.94 in3/rev]
600 to 3400 min-1 (rpm) - up to 25cm³ [1.55 in3/rev]
SAE A two bolt, SAE B two bolt, Perkins engine mount
Straight keyed, 1:8 tapered keyed, 9T, 11T, 13T and 15T splined
SAE O-ring boss, SAE split flange, beaded tube inlet (axial and radial)
*
8 mm²/sec (cSt) [36 SUS] minimum, 1600 mm²/sec (cSt) [7500 SUS] maximum
22/18/13 ISO 4406 at motor inlet
Petroleum/mineral based
-40°C [-40°F] minimum for cold start 110°C [230°F] normal operating conditions 115°C [239°F] peak intermittent
Single, tandem, triple, and quadruple multisection pumps available with common inlets. Integrated auxiliary cover for through drive applications.
Priority flow divider with priority relief Priority steering with steering relief Load sense priority flow divider
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D Series and XD Series Gear Pumps

Technical Specifications

Technical specifications

Ratings Units 07 10 11 13 14 17 19 21 23 25 29 32 36 38 41 45
Displacement
Rated pressure
Peak pressure
Speed min (rpm)
Theoretical flow at max speed
Weight
Mass moment of inertia
*
minimum speed at maximum pressure
-1
cm3/rev 7.0 9.5 10.8 12.6 14.3 17.0 19.0 20.5 22.5 25.4 29.0 31.8 36.1 38.0 41.0 45.1
in3/rev
bar 276 276 276 276 276 276 276 276 276 276 276 276 241 228 207 190
psi
bar 303 303 303 303 303 303 303 303 303 303 303 303 265 250 228 209
psi
maximum 3400 3400 3400 3400 3400 3400 3400 3400 3400 3400 3200 3000 2750 2750 2500 2500
minimum
l/min 24.0 32.3 36.7 42.9 48.5 57.9 64.6 69.6 76.3 86.4 92.8 95.4 99.0 104.5 102.4 112.7
US gal/min
kg 7.2 7.3 7.4 7.5 7.6 7.8 7.9 7.9 8.1 8.3 8.4 8.6 8.8 9.0 9.1 9.4
lb
x10-6 kg•m² 60 71 77 85 92 104 105 119 128 141 157 170 188 197 218 228
x10-6 slug•ft²
0.43 0.58 0.66 0.77 0.87 1.04 1.16 1.25 1.37 1.55 1.77 1.94 2.20 2.32 2.50 2.75
4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 3500 3300 3000 2750
4400 4400 4400 4400 4400 4400 4400 4400 4400 4400 4400 4400 3850 3630 3300 3025
*
1200 900 900 700 700 600 600 600 600 600 600 600 600 600 600 600
6.3 8.5 9.7 11.3 12.8 15.3 17.1 18.4 20.2 22.8 24.5 25.2 26.2 27.6 27.1 29.8
15.8 16.1 16.3 16.5 16.7 17.1 17.4 17.5 17.8 18.2 18.6 19.0 19.6 19.8 20.2 20.7
44 53 57 63 68 77 77 88 95 104 116 125 139 145 155 168

Fluid specifications

Inlet pressure

Parameter Unit Minimum Continuous Maximum Viscosity
Temperature* Cleanliness Filtration efficiency, charge filtration
*
Temperature and viscosity requirements must be satisfied concurrently
*
mm2/sec (cSt)[SUS]
°C [°F] -40 [-40] 110 [230] 115 [239]
8 [52]
ISO 4406 Class 22/18/13 or better
b15-20 =75 (b10³10)
10 - 100 [59-456]
1600 [7500]
Ratings are based on operation with premium petroleum-based hydraulic fluids containing oxidation, rust, and foam inhibitors.
Maximum continuous vacuum Maximum intermittent vacuum Maximum charged inlet pressure
bar atmospheric [inches mercury vacuum]
bar atmospheric [psi] 3.0 [44]
0.8 [5.9]
0.6 [11.8]
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Peak pressure
Rated pressure
Reaction time (100 ms max)
Time

Pressure

D Series and XD Series Gear Pumps

Operating Parameters

Sizing equations

Use these formulas to determine the nominal pump size for a specific application.
Pressure
Definitions of the D Series operating parameters appear below. Consult Danfoss technical support for applications running outside of these parameters.
Peak pressure
Peak pressure is the highest intermittent pressure allowed. The relief valve overshoot (reaction time) determines peak pressure. It is assumed to occur for less than 100 ms. The illustration to the right shows peak pressure in relation to rated pressure and reaction time (100 ms maximum).
Rated pressure
Rated pressure is the average, regularly occurring operating outlet pressure that should yield satisfactory product life. The maximum machine load demand determines rated pressure. For all systems, the load should move below this pressure.
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Danfoss | April 2020 BC319684134607en-000202 | 11
D Series and XD Series Gear Pumps
Operating Parameters
System pressure
System pressure is the differential between the inlet and outlet ports. It is a dominant operating variable affecting hydraulic unit life. High system pressure reduces expected pump life. System pressure must remain at, or below, rated pressure during normal operation to achieve expected life.
Inlet vacuum
Inlet vacuum must be controlled in order to realize expected performance and pump life. System design must meet inlet vacuum requirements during all modes of operation. Expect lower inlet vacuums during cold start situations. Low vacuum condition should improve quickly as fluid warms.
Pressure rise rate
The maximum pressure rise rate is the rate of increase in system pressure as measured at the outlet port of the pump. High pressure rise rates are commonly seen on work function applications during motor start-up, completion of cylinder stroke, and during rapid shifting of control valves. The maximum pressure rise rate of the D pump is 11,720 bar/sec [170,000 psi/sec]. During rapid rise rate situations, the system pressure must not exceed the rated pressure of the pump.

Temperature and viscosity

Temperature
High temperature limits apply at the inlet port of the pump. The pump should run at or below the maximum continuous temperature.
Minimum (cold start) temperature relates to the physical properties of component materials. Cold oil, generally, doesn’t affect the durability of pump components. It may affect the ability of oil to
flow and transmit power. For this reason, keep the temperature at 16°C [29 °F] above the pour point of the hydraulic fluid.
Continuous temperature is the temperature at or below the temperature which normal pump life can be expected.
Maximum temperature is the highest temperature that is tolerable by the machine for a transient/ limited time (duty cycle 1% or less). At maximum temperature, oil viscosity must not go lower than minimum recommended viscosity.
Viscosity Continuous viscosity: Recommended viscosity range for maximum efficiency and pump life. Minimum viscosity occurs only during brief occasions of maximum fluid temperature and severe duty
cycle operation. It’s the minimum acceptable viscosity to guarantee the pump life. (Duty cycle 1% or less) Maximum viscosity occurs only during cold start at very low temperatures. It is the upper limit of
viscosity that allows the pump to start. During this condition, limit speeds until the system warms up.
Temperature and viscosity requirements must be concurrently satisfied.

Speed

Maximum speed is the limit recommended for operation at rated pressure. It is the highest speed at
which normal life can be expected. The lower limit of operating speed is the minimum speed.
12 | © Danfoss | April 2020 BC319684134607en-000202
C
D Series and XD Series Gear Pumps
Operating Parameters

Hydraulic fluid

Ratings and data for gear pumps are based on operation with premium hydraulic fluids containing oxidation, rust, and foam inhibitors. These fluids must possess good thermal and hydrolytic stability to prevent wear, erosion, and corrosion of internal components.
Use only clean fluid in the pump and hydraulic circuit.
Caution
Never mix hydraulic fluids.

Filtration

Filters

Use a filter that conforms to Class 22/18/13 of ISO 4406 (or better). It may be on the pump outlet (pressure filtration), inlet (suction filtration), or reservoir return (return-line filtration).

Selecting a filter

When selecting a filter, please consider:
contaminant ingression rate (determined by factors such as the number of actuators used in the system)
generation of contaminants in the system
required fluid cleanliness
desired maintenance interval
filtration requirements of other system components
Measure filter efficiency with a Beta ratio (βX). For:
suction filtration, with controlled reservoir ingression, use a β
return or pressure filtration, use a pressure filtration with an efficiency of β10 = 75
βx ratio is a measure of filter efficiency defined by ISO 4572. It is the ratio of the number of particles greater than a given diameter ( “X“ in microns) upstream of the filter to the number of these particles downstream of the filter.
Fluid cleanliness level and βx ratio
Fluid cleanliness level (per ISO 4406) βx ratio (suction filtration) βx ratio (pressure or return filtration) Recommended inlet screen size
The filtration requirements for each system are unique. Evaluate filtration system capacity by monitoring and testing prototypes.

Reservoir

The reservoir provides clean fluid, dissipates heat, removes entrained air, and allows fluid volume changes associated with fluid expansion and cylinder differential volumes. A correctly sized reservoir accommodates maximum volume changes during all system operating modes. It promotes deaeration of the fluid as it passes through, and accommodates a fluid dwell-time between 60 and 180 seconds, allowing entrained air to escape.
Minimum reservoir capacity depends on the volume required to cool and hold the oil from all retracted cylinders, allowing for expansion due to temperature changes. A fluid volume of 1 to 3 times the pump output flow (per minute) is satisfactory. The minimum reservoir capacity is 125% of the fluid volume.
Install the suction line above the bottom of the reservoir to take advantage of gravity separation and prevent large foreign particles from entering the line. Cover the line with a 100-125 micron screen. The
= 75 filter
35-45
Class 22/18/13 or better
β
= 75 and β10 = 2
35-45
β10 = 75
100-125 µm [0.004-0.005 in]
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Danfoss | April 2020 BC319684134607en-000202 | 13
Pilot cavity
Ø 0.1 [0.004]
Mating spline
D Series and XD Series Gear Pumps
Operating Parameters
pump should be below the lowest expected fluid level. Put the return-line below the lowest expected fluid level to allow discharge into the reservoir for maximum dwell and efficient deaeration. A baffle (or baffles) between the return and suction lines promotes deaeration and reduces fluid surges.

Line sizing

Choose line sizes that accommodate maximum fluid velocity to reduce system noise, pressure drops, and overheating in order to maximize system life and performance. Line velocities shown in the following table provide a general rule of thumb. Final selection of line sizing and fittings must comply with all pressure ratings.

Pump life

Pump shaft connection

Inlet
Outlet 6-9 [20-30]
m/sec [ft/sec]
2.4-4.3 [8-14]
Most systems use hydraulic oil containing 10% dissolved air by volume. Over-areation, or entrained air is the result of flow line restrictions, where the dissolved air comes out of solution, or when air is allowed to leak into the hydraulic circuit. These include inadequate pipe sizes, sharp bends, or elbow fittings, causing reduction of flow-line cross-sectional area. This problem will not occur if these circuit recommendations are followed, rated speed requirements are maintained, and reservoir size and location are adequate.
Pump life is a function of speed, system pressure, and other system parameters (such as fluid quality and cleanliness).
All Danfoss gear pumps use hydrodynamic journal bearings with an oil film between the gear/shaft and bearing surfaces. If the oil film is sufficiently sustained through proper system maintenance and operating within recommended limits, long life can be expected.
ß10 life expectancy number is generally associated with rolling element bearings. It does not exist for hydrodynamic bearings.
When submitting an application for review, provide machine duty cycle data including percentage of time at various loads and speeds. We strongly recommend a prototype testing program to verify operating parameters and their impact on life expectancy before finalizing any system design.
Shaft options for gear pumps include tapered, splined, or parallel shafts. Plug-in drives, with a splined shaft, can impose severe radial loads when the mating spline is rigidly
supported. Increasing spline clearance does not alleviate this condition.
Pump shaft connection
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C
P107 928E
3:00
12:00
9:00
6:00
Shaft loading
All values measured 25.4 mm [1 inch]
from the mounting flange
For other orientations and distances,
higher radial loads at lower pressures contact your S-D representative
25.4 mm [1 inch]
Recommended loading position
CW Rotation
CCW Rotation
D Series and XD Series Gear Pumps
Operating Parameters
Lubricate all shaft couplings. Failure to do so will result in premature shaft failure.
Use plug-in drives if the concentricity between the mating spline and pilot diameter is within 0.1 mm [0.004 in]. Lubricate the drive by flooding it with oil. A 3-piece coupling minimizes radial or thrust shaft loads.
Caution
To avoid spline shaft damages it is recommended to use carburized and hardened steel couplings with 80-82 HRA surface hardness.

Radial and axial loading

Allowable radial shaft loads are a function of the load position, load orientation, and operating pressure. All external shaft loads have an effect on bearing life, and may affect pump performance.
In applications where external shaft loads cannot be avoided, minimize the impact on the pump by optimizing the orientation and magnitude of the load. Use tapered input shafts for applications with radial shaft loads. The table below shows the preferred orientation for radial loads assuming maximum pressure. For assistance concerning shaft loading, contact your Danfoss representative.
Maximum radial and axial loads
Ratings Units 7 10 11 13 14 17 19 21 23 25 29 32 36 38 41 45 Maximum
radial load
Push/Pull axial load
lbf 1430 1430 1430 1430 1430 1430 1360 1300 1210 1070 870 700 420 270 450 620
6361 6361 6361 6361 6361 6361 5943 5783 5382 4760 3870 3114 1868 1201 2002 2758
N
lbf 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 350
1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557 1557
N
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Danfoss | April 2020 BC319684134607en-000202 | 15
D Series and XD Series Gear Pumps

D Series Model Code

Single pump order code

Example
A B1 B2 C D E F H J K
D E 1 R 2 1 S H A C F 0 9 A 1 5 X 1 7 2 C Z A N N N N
Code Position Description DE1R 21 SH AC F09A
15X 172 CZ AN NNN
A D Series pump, single section, right hand rotation
B1 21 cm³ displacement
B2 13 tooth spline input shaft
C SAE A two bolt mounting flange
D Integrated priority flow divider with cartridge style priority relief, 1 5/16-12 side inlet,
3/14-16 side priority, 7/8-14 side secondary
E 15.1 l/min[4 US gal/min] priority flow setting
F 172 bar [2495 psi] priority relief setting
H Assembly screws
J Standard Nameplate
K No special features, black paint

DE1: D series cast iron gear pump, single section

A Rotation - viewed from drive shaft
A B1 B2 C D E F H J K
D E 1
Code Description L Lefthand (counterclockwise)
R Right hand (clockwise)
B1 Displacement
A B1 B2 C D E F H J K
D E 1 ● ●
Code Description 07 10 11 13 14 17 19 21 23 25
7.0 cm³/rev [0.43 in3/rev]
9.5 cm³/rev [0.58 in3/rev]
10.8cm³/rev [0.66 in3/rev]
12.6cm³/rev [0.77 in3/rev]
14.3cm³/rev [0.87 in3/rev]
17.0cm³/rev [1.04 in3/rev]
19.0cm³/rev [1.16 in3/rev]
20.5cm³/rev [1.25 in3/rev]
22.5 cm³/rev [1.37 in3/rev]
25.4 cm³/rev [1.55 in3/rev]
16 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps
D Series Model Code
Code Description 29 32 36 38 41 45
B2 Input shaft
A B1 B2 C D E F H J K
D E 1 ● ●
Code Description
*
SE SC SF SH SV PB PD PZ TA TG TH TX WT AB AC AH
*
Contact factory for units with SE (9T spline) to verify torque limits
29.0 cm³/rev [1.77 in3/rev]
31.8 cm³/rev [1.94 in3/rev]
36.1 cm³/rev [2.20 in3/rev]
38.0 cm³/rev [2.32 in3/rev]
41.0 cm³/rev [2.50 in3/rev]
45.1 cm³/rev [2.75 in3/rev]
SAE 9 tooth spline, 31.8 mm [1.25 in] length
SAE 11 tooth spline, 38.1 mm [1.5 in] length
11 tooth spline, 31.8 mm [1.25 in] length (special modified length)
SAE 13 tooth spline, 41 mm [1.62 in] length
15 tooth spline, 46 mm [1.81 in] length (use with mounting flange AR or BR)
22 mm [7/8 in] diameter, 41 mm [1.62 in] length, with 1/4 key
19 mm [3/4 in] diameter, 51 mm [2 in] length, with 3/16 key
25.4 mm [1 in] diameter, 46 mm [1.81 in] length with 1/4 key
1:5taper, 25mm [1 in] dia, 58mm [2.30 in] length, 5/8 thread, M5 key with locknut and washer
1:8taper, 22mm [7/8 in] dia, 50mm [1.95 in] length, 5/8 thread with key, locknut and washer
1:8taper, 22mm [7/8 in] dia, 49mm [1.94 in] length, 9/16 thread with key, locknut and washer
1:4 taper, 22mm [7/8 in] dia, 50mm [1.98 in] length, 5/16 internal thread with key
Input shaft similar to TH option with 34 tooth helical gear for Perkins engine mount
22mm[7/8 in] diameter, 41mm [1.62] length with 1/4 key with 9T spline through drive
SAE 11 tooth spline, 38.1 mm [1.5 in] length with 9T spline through drive
SAE 13 tooth spline, 41 mm [1.62 in] length with 9T spline through drive
C Mounting flange
A B1 B2 C D E F H J K
D E 1 ● ●
Code Description AA AC AL AM AP AR
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Danfoss | April 2020 BC319684134607en-000202 | 17
SAE A 2-bolt
SAE A 2-bolt, use with integral PFD/Steering Cover
SAE A 2-bolt, two shaft seals with weep hole
SAE A 2-bolt, with T seal
SAE A 2-bolt, with T seal, use with integral PFD/Steering cover
SAE A 2-bolt, use with 15 T spline input drive
D Series and XD Series Gear Pumps
D Series Model Code
Code Description AS AT BB BC BM BP BR BS BT BW PP
D Rear cover: Port options, integrated valves, and auxillary flange
A B1 B2 C D E F H J K
D E 1 ● ● ● ●
SAE A 2-bolt, use with integral PFD/Steering cover and 15 T input spline
SAE A 2-bolt, two shaft seals with weep hole, use with integral PFD/Steering cover
SAE B 2-bolt
SAE B 2-bolt, use with integral PFD/Steering cover
SAE B 2-bolt, with T seal
SAE B 2-bolt, with T seal, use with integral PFD/Steering cover
SAE B 2-bolt, use with 15 T spline input drive
SAE B 2-bolt, use with integral PFD/Steering cover and 15 T input spline
SAE B 2-bolt, two shaft seals with weep hole, use with integral PFD/Steering Cover
SAE B 2-bolt, two shaft seals with weep hole
Perkins 6 bolt flange with (2) seals (use with WT input shaft and clockwise rotation)
Code Inlet Outlet Description N101 N103 N104 N125 N501 N503 N504 N252
N402 N403 N404 N407 N408
N342
N704 N708 N715 N716 N720 B103 B104*
1 1/16-12 side inlet 7/8-14 side outlet
1 5/16-12 side inlet 7/8-14 side outlet
1 5/16-12 side inlet 1 1/16-12 side outlet
1 5/8-12 side inlet 1 1/16-12 side outlet
1 1/16-12 rear inlet 7/8-14 rear outlet
1 5/16-12 rear inlet 7/8-14 rear outlet
1 5/16-12 rear inlet 1 1/16-12 rear outlet
M33x2-6H rear inlet M22x1.5-6H side outlet SAE Metric Ports – No Integrated
3/4-14 side inlet 1/2-14 side outlet
1-11 side inlet 1/2-14 side outlet
1 1/4-11 side inlet 1/2-14 side outlet
1-11 side inlet 3/4-14 side outlet
1 1/4-11 side inlet 3/4-14 side outlet
1 1/4 side split flange inlet 3/4side split flange outlet (SAE
code 61)
1 1/4 side tube inlet 7/8-14 side ORB outlet
1 1/4 side tube inlet 1 1/16-12 side ORB outlet
1 1/4 REAR tube inlet 1 1/16-12 REAR ORB outlet
1 1/2 side tube inlet 1 1/16-12 side ORB outlet
1 1/4 REAR tube inlet 7/8-14 REAR ORB outlet
*
1 5/16-12 side inlet 7/8-14 side outlet
1 5/16-12 side inlet 1 1/16-12 side outlet
SAE O-ring boss ports No integrated valves No auxiliary flange
Valves British Standard Pipe Parallel
(BSPP) threads - No integrated valves
SAEsplit flange ports No integrated valves Noauxiliary flange
Beaded tube inlet port, SAE O­ring boss outlet port No integrated valves No auxiliary flange
SAE-A2-Bolt Auxiliary Flange SAEO-ring boss ports No integrated valves
18 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps
D Series Model Code
Code Inlet Outlet Description
R104
**
F09A
F09B
F13A**
F13B‡
F21A**
F21B‡
F25A**
F25B‡
D23A*
D23B**
D24A*
D24B**
L01A**
L01B‡
L08A**
L08B‡
*
Integrated auxilliary flange requires use of input shaft option AH or AC
**
Requires use of mounting flange option AC or AP
Requires use of mounting flange option BC or BP
1 5/16-12 side inlet 1 1/16-12 side outlet Integrated Relief Valve Internally
Drained Maximum Displacement 23cc
15/16-12 side inlet, 3/4-16 side priority, 7/8-14side secondary (SAE A flange)
1 5/8-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary (SAE A flange)
1 5/8-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary (SAE A flange)
1 5/8-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary (SAE B flange)
15/8-12 side inlet, 3/4-16 side priority, 7/8-14 side secondary (SAE A flange)
15/8-12 side inlet, 3/4-16 side priority, 7/8-14 side secondary (SAE B flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary (SAE A flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary (SAE B flange)
15/16-12 side inlet, 3/4-16 side priority, nosecondary port (SAE A flange)
15/16-12 side inlet, 3/4-16 side priority, nosecondary port (SAE B flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, no secondary port (SAE A flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, no secondary port (SAE B flange)
1 5/16-12 side inlet, 3/4-16 side priority, 7/8-14 side secondary, 7/16-20 side LS (SAE-A flange)
1 5/16-12 side inlet, 3/4-16 side priority, 7/8-14 side secondary, 7/16-20 side LS (SAE-B flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary, 7/16-20 rear LS (SAE-A flange)
1 5/16-12 rear inlet, 3/4-16 rear priority, 7/8-14 rear secondary, 7/16-20 rear LS (SAE-B flange)
Integrated Priority Flow Divider, cartridge style relief for settings up to: 221barand
34.3 l/min [3200 psi and 9 US gal/min]
Integrated Steering Cover, Priority Relief Valve (Cartridge Style) for settings up to: 221 bar and 34.3 l/min [3200 psi and 9 US gal/min]
Integrated Load Sense Divider (Dynamic), Priority Relief Valve
A variety of integrated load sense priority flow divider covers are available from Danfoss. Please contact your technical representative to determine which hardware best suits specific application needs.
E Flow control valve setting
A B1 B2 C D E F H J K
D E 1 ● ● ●
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Danfoss | April 2020 BC319684134607en-000202 | 19
D Series and XD Series Gear Pumps
D Series Model Code
Code Description
NNN Noflow control setting, standard for units without integrated flow control valves
04X 3.8 l/min [1 US gal/min] 08X 7.6 l/min [2 US gal/min] 11X 11.4 l/min [3 US gal/min] 15X 15.1 l/min [4 US gal/min] 19X 18.9 l/min [5 US gal/min] 23X 22.7 l/min [6 US gal/min] 27X 26.5 l/min [7 US gal/min] 30X 30.3 l/min [8 US gal/min] 34X 34.3 l/min [9 US gal/min]
38A 10 bar standby
38L 10 bar standby
R1N
R2N
Maximum flow not to exceed 75 l/min, pressure
rangefrom 7-55bar
Maximum flow not to exceed 75 l/min, pressure
rangefrom 41-248bar
For integrated PFD
Steering cover with cartridge style relief valve
(Cover options F09A, F09B, F13A, F13B, F21A, F21B,
F25A or F25B)
Forintegrated load sense divider (use with L08A or
L08B rear ports)
Forintegrated load sense divider (use with L01A or
L01B side ports)
For integrated relief valve, internally drained
(without flow control)
Use with R104 cover option
23cc and under
For integrated relief valve, internally drained
(without flow control)
Use with R104 cover option
23cc and under
F Pressure control valve setting
A B1 B2 C D E F H J K
D E 1 ● ● ●
20 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps
D Series Model Code
Code Description
000 Nopressure control settings, standard for units without integrated pressure control valves 034 34 bar [500 psi] 041 41 bar [600 psi] 048 48 bar [700 psi] 055 55 bar [800 psi] 062 62 bar [900 psi] 069 69 bar [1000 psi] 076 76 bar [1100 psi] 083 83 bar [1200 psi] 090 90 bar [1300 psi] 097 97 bar [1400 psi] 103 103 bar [1500 psi] 110 110 bar [1600 psi] 117 117 bar [1700 psi] 124 124 bar [1800 psi] 131 131 bar [1900 psi] 138 138 bar [2000 psi] 145 145 bar [2100 psi] 152 152 bar [2200 psi] 159 159 bar [2300 psi] 165 165 bar [2400 psi] 172 172 bar [2500 psi] 179 179 bar [2600 psi] 186 186 bar [2700 psi] 193 193 bar [2800 psi] 200 200 bar [2900 psi] 207 207 bar [3000 psi] 214 214 bar [3100 psi] 221 221 bar [3200 psi]
For integrated priority flow divider (PFD) cover
with cartridge style relief valve
(Cover optionsF09A, F09B, F13A, F13B, F21A, F21B,
F25A, F25B)
For integrated steering cover with cartridge style
relief valve (Cover options D23A, D23B, D24A,
D24B) For integrated load sense (LS) cover with cartridge relief valve (Cover options L01A, L01B, L08A, L08B)
H Assembly Screws - depending on rear cover
A B1 B2 C D E F H J K
D E 1 ● ●
(Choose Table 1 or Table 2)
Table 1. Single pumps without auxiliary cover or integrated valves
Displacem
ent
(Module
B) 07 AF AJ 10 AG AJ
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Danfoss | April 2020 BC319684134607en-000202 | 21
N101, N103, N104, N501, N503, N504, N704, N708 N125
Rear Cover - Controls & Ports (Module D)
D Series and XD Series Gear Pumps
D Series Model Code
Table 1. Single pumps without auxiliary cover or integrated valves (continued)
Displacem
ent
(Module
B) 11 AG AJ 13 AG AJ 14 AG AK 17 AH AK 19 AH AK 21 AH AL 23 AJ AL 25 AJ AL 29 AK AM 32 AK AM 36 AL AN 38 AL AN 41 AM AP 45 AM AR
Rear Cover - Controls & Ports (Module D)
N101, N103, N104, N501, N503, N504, N704, N708 N125
Table 2. Single pumps with auxiliary cover or integrated valves, dependent on rotation
Rear Cover - Controls & Ports (Module D)
Displacement
(Module B)
F09A F13A, F21A F09B F13B, F21B B104 F09A F13A, F21A F09B F13B, F21B B104 07 CV DG AG EM DG AG 10 CV DG AH EM DG AH 11 CV DG AH EM DG AH 13 CX DJ AH EP DJ AH 14 CX DJ AH EP DJ AH 17 CY DK AJ ER DK AJ 19 CZ DL AJ ES DL AJ 21 CZ DL AJ ES DL AJ 23 CZ DM AJ ES DM AJ 25 DA DN AK ET DN AK 29 DB DP AK EY DP AK 32 DC DR AL EU DR AL 36 DD DS AM EV DS AM 38 DE DT AM EW DT AM 41 DE DT AM EW DT AM 45 DF DU AN EX DU AN
Right Hand (CW) Rotation Left Hand (CCW) Rotation
22 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps
D Series Model Code
J Nameplates
A B1 B2 C D E F H J K
D E 1 ● ●
Code Description
AN Standard nameplate
K Special feature
A B1 B2 C D E F H J K
D E 1 ● ● ●
Code Description
NNN No special features, standard black paint

Two section (tandem) pump order code

Example
The order code below provides an example of a single section pump with integrated priority flow divider
A B1 B2 C R S D E F H J K
D E 2 R 2 3 S H B B 1 0 4 1 3 N 1 1 3 N N N O O O A V A N N N N
Code Position Description DE2R 23 SH BB 104 13 N113 NNN 000 AV AN NNN
A D Series pump with two pumping sections, right hand rotation
B1 23 cm³ displacement on first section
B2 13 tooth spline input shaft
C SAE B two bolt mounting flange
R 1 5/16-12 side inlet, 1 1/16 side outlet on first section
S 13 cm³ displacement on second section
D No inlet and 7/8-14 side outlet on second section
E No flow control setting
F No pressure control setting
H Assembly screws
J Standard Nameplate
K No special features, black paint

A Rotation - viewed from drive shaft

A B1 B2 C R S D E F H J K
D E 2
Code Description L R
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Danfoss | April 2020 BC319684134607en-000202 | 23
Lefthand (counterclockwise)
Right hand (clockwise)
D Series and XD Series Gear Pumps
D Series Model Code

B1 Displacement

A B1 B2 C R S D E F H J K
D E 2 ● ●
Code Description 07 10 11 13 14 17 19 21 23 25 29 32 36 38 41 45
7.0 cm³/rev [0.43 in3/rev]
9.5 cm³/rev [0.58 in3/rev]
10.8cm³/rev [0.66 in3/rev]
12.6cm³/rev [0.77 in3/rev]
14.3cm³/rev [0.87 in3/rev]
17.0cm³/rev [1.04 in3/rev]
19.0cm³/rev [1.16 in3/rev]
20.5cm³/rev [1.25 in3/rev]
22.5cm³/rev [1.37 in3/rev]
25.4cm³/rev [1.55 in3/rev]
29.0cm³/rev [1.77 in3/rev]
31.8cm³/rev [1.94 in3/rev]
36.1cm³/rev [2.20 in3/rev]
38.0cm³/rev [2.32 in3/rev]
41.0cm³/rev [2.50 in3/rev]
45.1cm³/rev [2.75 in3/rev]

B2 Input shaft

A B1 B2 C R S D E F H J K
D E 2 ● ●
Code Description
*
SE SC SF SH SV PB PD PZ TA TG TH WT
*
Contact factory for units with SE (9T spline) to verify torque limits
SAE 9 tooth spline, 31.8 mm [1.25 in] length
SAE 11 tooth spline, 38.1 mm [1.50 in] length
11 tooth spline, 31.8 mm [1.25 in] length (special modified length)
SAE 13 tooth spline, 41 mm [1.62 in] length
15 tooth spline, 46 mm [1.81 in] length (requires mounting flange AR or BR)
22 mm [7/8 in] diameter x 41 mm [1.62 in] length, with 1/4 inch key
19 mm [3/4 in] diameter x 51 mm [2.0 in] length, with 3/16 inch key
25.4 mm [1 inch] diameter x 46 mm [1.81 in] length, with 1/4 inch key
1:5taper, 25mm [1 in] dia, 58mm [2.30 in] length, 5/8 thread, M5 key with locknut and washer
1:8taper, 22mm [7/8 in] dia, 50mm [1.95 in] length, 5/8 thread with key, locknut and washer
1:8taper, 22mm [7/8 in] dia, 49mm [1.94 in] length, 9/16 thread with key, locknut and washer
Input shaft similar to TH option with 34 tooth helical gear for Perkins engine mount
24 | © Danfoss | April 2020 BC319684134607en-000202
D Series and XD Series Gear Pumps
D Series Model Code

C Mounting flange

A B1 B2 C R S D E F H J K
D E 2 ● ●
Code Description AA AC AM AP AR AS AL AT BB BC BM BP BR BS BT BW PP
SAE A 2-bolt
SAE A 2-bolt, use with integral PFD/Steering Cover
SAE A 2-bolt, with T seal
SAE A 2-bolt, with T seal, use with integral PFD/Steering cover
SAE A 2-bolt, use with 15 T spline input drive
SAE A 2-bolt, use with integral PFD/Steering cover and 15 T input spline
SAE A 2-bolt, two shaft seals with weep hole
SAE A 2-bolt, two shaft seals with weep hole, use with integral PFD/Steering cover
SAE B 2-bolt
SAE B 2-bolt, use with integral PFD/Steering cover
SAE B 2-bolt, with T seal
SAE B 2-bolt, with T seal, use with integral PFD/Steering cover
SAE B 2-bolt, use with 15 T spline input drive
SAE B 2-bolt, use with integral PFD/Steering cover and 15 T input spline
SAE B 2-bolt, two shaft seals with weep hole, use with integral PFD/Steering Cover
SAE B 2-bolt, two shaft seals with weep hole
Perkins 6 bolt flange with (2) seals (use with WT input shaft and clockwise rotation)

R Ports - First section

A B1 B2 C R S D E F H J K
D E 2 ● ● ●
Code Description
101 1 1/16-12 side inlet, 7/8-14 side outlet 103 1 5/16-12 side inlet, 7/8-14 side outlet 104 1 5/16-12 side inlet, 1 1/16-12 side outlet 113 No inlet, 7/8-14 side outlet 125 1 5/8-12 side inlet, 1 1/16-12 side outlet 126 No inlet, 1 1/16-12 side outlet 341 Noinlet, 3/4 side split flange outlet (SAE Code 61)
342
11/4 side split flange inlet, 3/4 side split flange outlet(SAE Code
61)
SAE O-ring boss ports No integrated
SAESplit Flange Ports - No
integratedvalves
valves
©
Danfoss | April 2020 BC319684134607en-000202 | 25
D Series and XD Series Gear Pumps
D Series Model Code
Code Description
401 No inlet, 1/2-14 side outlet 402 3/4-14 side inlet, 1/2-14 side outlet 403 1-11 side inlet, 1/2-14 side outlet 404 1 1/4-11 side inlet, 1/2-14 side outlet 405 No inlet, 3/4-14 side outlet 407 1-11 side inlet, 3/4-14 side outlet 408 1 1/4-11 side inlet, 3/4-14 side outlet 704 1 1/4 side tube inlet, 7/8-14 side ORB outlet 708 11/4 side tube inlet, 1 1/16-12 side ORB outlet 716 11/2 side tube inlet, 1 1/16-12 side ORB outlet 717 1 1/2 side tube inlet, 7/8-14 side ORB outlet

S Displacement - Second section

A B1 B2 C R S D E F H J K
D E 2 ● ●
British Standard Pipe Parallel (BSPP)
threads - No integrated valves
Beaded tube inlet port
SAE O-ring boss outlet port No
integrated valves
Code Description 07 10 11 13 14 17 19 21 23 25 29 32 36 38 41 45
7.0 cm³/rev [0.43 in3/rev]
9.5 cm³/rev [0.58 in3/rev]
10.8cm³/rev [0.66 in3/rev]
12.6cm³/rev [0.77 in3/rev]
14.3cm³/rev [0.87 in3/rev]
17.0cm³/rev [1.04 in3/rev]
19.0cm³/rev [1.16 in3/rev]
20.5 cm³/rev [1.25 in3/rev]
22.5 cm³/rev [1.37 in3/rev]
25.4 cm³/rev [1.55 in3/rev]
29.0 cm³/rev [1.77 in3/rev]
31.8 cm³/rev [1.94 in3/rev]
36.1 cm³/rev [2.20 in3/rev]
38.0 cm³/rev [2.32 in3/rev]
41.0 cm³/rev [2.50 in3/rev]
45.1 cm³/rev [2.75 in3/rev]

D Rear cover: Port options, integrated valves and auxillary flange

A B1 B2 C R S D E F H J K
D E 2 ● ● ● ●
26 | © Danfoss | April 2020 BC319684134607en-000202
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