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Group 0
User guide
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Danfoss Group 0, Group 1 User guide

Technical Information
Gear Pumps
Group 0 and Group 1
www.danfoss.com
Technical Information
Revision history Table of revisions
Date Changed Rev
October 2019 First edition 0101
2 | © Danfoss | October 2019 BC320173499791en-000101
Technical Information

Contents

General Information
Overview..............................................................................................................................................................................................5
Features and benefits..................................................................................................................................................................... 6
Group 0
Design...................................................................................................................................................................................................7
Features................................................................................................................................................................................................7
Product Code..................................................................................................................................................................................... 8
Model code....................................................................................................................................................................................8
A Family.....................................................................................................................................................................................8
B Displacement.......................................................................................................................................................................8
C Rotation.................................................................................................................................................................................9
D Project version....................................................................................................................................................................9
E Mounting flange.................................................................................................................................................................9
F Drive gear..............................................................................................................................................................................9
G Rear cover.............................................................................................................................................................................9
H Inlet size; I Outlet size.......................................................................................................................................................9
J Ports positions & Special body.................................................................................................................................... 10
K Seals......................................................................................................................................................................................10
L Screws.................................................................................................................................................................................. 10
M Set valve.............................................................................................................................................................................10
N Type mark.......................................................................................................................................................................... 10
O Mark position....................................................................................................................................................................10
Dimensions.......................................................................................................................................................................................11
TFPONN-01FA............................................................................................................................................................................ 11
Group 1
Pump design....................................................................................................................................................................................12
SNP1NN............................................................................................................................................................................................. 12
SKP1NN..............................................................................................................................................................................................13
SKP1IN................................................................................................................................................................................................13
Pump displacements....................................................................................................................................................................14
General Information
Technical data................................................................................................................................................................................. 15
Product Code
Model code.......................................................................................................................................................................................17
A Family........................................................................................................................................................................................17
B Displacement..........................................................................................................................................................................17
C Rotation....................................................................................................................................................................................17
D Project version.......................................................................................................................................................................17
E Mounting flange....................................................................................................................................................................18
F Drive gear.................................................................................................................................................................................18
G Rear cover................................................................................................................................................................................18
H Inlet size; I Outlet size..........................................................................................................................................................18
J Ports positions & Special body..........................................................................................................................................19
K Seals........................................................................................................................................................................................... 19
L Screws........................................................................................................................................................................................20
M Set valve..................................................................................................................................................................................20
N Type mark................................................................................................................................................................................20
O Mark position.........................................................................................................................................................................20
Determination of Nominal Pump Sizes
Determination of nominal pump sizes.................................................................................................................................. 21
System Requirements
Pressure............................................................................................................................................................................................. 22
Speed..................................................................................................................................................................................................22
Hydraulic fluids............................................................................................................................................................................... 23
Temperature and viscosity......................................................................................................................................................... 23
Filtration............................................................................................................................................................................................ 24
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Technical Information
Contents
Filters.............................................................................................................................................................................................24
Selecting a filter.........................................................................................................................................................................24
Reservoir...................................................................................................................................................................................... 24
Line sizing......................................................................................................................................................................................... 25
Pump drive.......................................................................................................................................................................................25
Pump drive data form.................................................................................................................................................................. 26
Pump Life..........................................................................................................................................................................................27
Sound levels.....................................................................................................................................................................................27
Pump Performance
Pump performance graphs........................................................................................................................................................ 28
Product Options
Flange, shaft and port configurations....................................................................................................................................31
Shaft options....................................................................................................................................................................................32
Inlet/Outlet port configurations...............................................................................................................................................33
Ports....................................................................................................................................................................................................33
SNP1IN............................................................................................................................................................................................... 34
Variant codes for ordering integral relief valves.................................................................................................................35
Integral relief valve schematic...................................................................................................................................................37
Dimensions
SNP1NN - 01BA and 01DA.......................................................................................................................................................... 38
SKP1NN – 02BB and 02FA........................................................................................................................................................... 39
SNP1NN – 03CA.............................................................................................................................................................................. 40
SKP1NN – 06GA and 06SA.......................................................................................................................................................... 41
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Technical Information

General Information

Overview

The Danfoss Group 0 and Group 1 is a range of peak performance fixed-displacement gear pumps. Constructed of a high strength extruded aluminum body with aluminum cover and flange, all pumps are pressure-balanced for exceptional efficiency. The flexibility of the range, combined with high efficiency and low noise, makes the pumps in this series ideal for a wide range of applications, including: turf care, aerial lifts, material handling, and power packs.
TFP0NN 01FA
SNP1NN 01BA
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Technical Information
General Information
SKP1NN 06SA

Features and benefits

SNP1NN 03CA
Gear pump attributes:
•
Up to 16 displacements from 0,25 to 12 cm3/rev [from 0.015 to 0.732 in3/rev
•
Continuous pressure rating up to 250 bar [3625 psi]
•
Speeds up to 4000 min-1 (rpm)
•
SAE, ISO, and DIN mounting flanges and shafts
•
Compact, lightweight, quiet operation
•
Group 1 units are available as unidirectional and bi-directional motors, also with integral relief valve
•
You can combine groups 1, 2 and 3 to make multi-stage pump
6 | © Danfoss | October 2019 BC320173499791en-000101
Technical Information

Group 0

OwerTFP0NN pumps provide flexibility, numerous displacements, features, and shaft/port options. The TFP0NN series has earned an excellent reputation for rugged, dependable performance at continuous pressures and speeds.
TFP0NN 01FA

Design

Features

TFP0NN pumps are available in five displacements from 0.25 to 1.27 cm3/rev [0.015 to 0.075 in3/rev]. Complete information can be found by referring to the specific sections in this technical manual.
Constructed of high strength aluminum, the TFP0NN rotation is either clockwise or counterclockwise.
Special features of Group 0 pumps include:
•
Wide range of displacements
•
Parallel shaft ends
•
Standard mounting flange (European, 2-bolt)
•
European port options
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Technical Information
Group 0
Technical data – Group 0 gear pumps
Displacement
Peak pressure
Rated pressure
Minimum pressure at maximum speed
Minimum speed at 103 bar [1500 psi]
Maximum speed 8000 8000 8000 7000 5000
Weight kg [lb]
Moment of inertia of rotating components
Theoretical flow at maximum speed
cm3/rev [in3/rev]
bar [psi]
-1
min
(rpm)
x 10-6 kg•m [x 10-6 lb•ft2]
l/min
[US gal/min]
Frame size
,25 ,45 ,57 ,76 1,3
0.25
[0.015]
200
[2900]
180
[2600]
103
[1500]
500 500 500 500 500
0.40
[0.88]
2
0.425
[10.09]
2.00
[0.53]
0.45
[0.027]
200
[2900]
180
[2600]
103
[1500]
0.45
[1.00]
0.544
[12.91]
3.60
[0.95]
0.57
[0.034]
200
[2900]
180
[2600]
103
[1500]
0.46
[1.01]
0.621
[14.74]
4.56
[1.20]
[0.045]
[2900]
[2600]
[1500]
[1.03]
0.737
[17.49]
[1.41]
0.76
200
180
103
0.47
5.32
1.27
[0.075]
200
[2900]
180
[2600]
103
[1500]
0.48
[1.06]
1.049
[24.89]
6.35
[1.68]

Product Code

1 kg•m2 = 23.68 lb•ft
2
For applications requiring parameters beyond those listed above, contact Danfoss.

Model code

A Family
A B C D E F G H I J K L M N O
● ● ● ● ● ● / /
TFP0NN TFR0NN
Std gear pump
Reversible pump
B Displacement
A B C D E F G H I J K L M N O
/ ● ● ● /
0,25 0,45 0,57 0,76 1,3
Displacement 0,25cc
Displacement 0,45cc
Displacement 0,57cc
Displacement 0,76cc
Displacement 1,3cc
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Technical Information
Group 0
C Rotation
A B C D E F G H I J K L M N O
/ ● /
L R B
Left rotation
Right rotation
Reversible pump
D Project version
A B C D E F G H I J K L M N O
/ ● /
N
Std gear version
E Mounting flange
A B C D E F G H I J K L M N O
/ ● ● /
Code Description (Type of flange • Type of drive gear • Preferred ports for configuration)
01
European 2-bolt flange
F Drive gear
A B C D E F G H I J K L M N O
/ ● ● /
CA FA
Tang drive 5xØ7
Parallel shaft 7,0 mm [0.276 in]
G Rear cover
A B C D E F G H I J K L M N O
/ ● ● /
P1 P3
H Inlet size; I Outlet size
A B C D E F G H I J K L M N O
/ ● ● ● ● /
Standard cover for pump
Standard cover for reversible pump
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Technical Information
Group 0
D1 M10x1- Threaded metric port
D3 M14x1,5- Threaded metric port
F2 1/4 GAS - Threaded BSP port
J Ports positions & Special body
A B C D E F G H I J K L M N O
/ ● ● /
NN
K Seals
A B C D E F G H I J K L M N O
N
L Screws
A B C D E F G H I J K L M N O
N
M Set valve
A B C D E F G H I J K L M N O
NNN
N Type mark
Std position from catalog
/ ● /
Standard Buna seal
/ ● /
Std screws
/ / ● ● ●
No valve
A B C D E F G H I J K L M N O
/ / ●
N A
Standard Danfoss Marking
Standard Danfoss Marking+Customer Code
O Mark position
A B C D E F G H I J K L M N O
/ / ●
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Technical Information
Group 0

Dimensions

N A
Std Marking position (on top)
Special Marking position on the bottom

TFPONN-01FA

Available 01FA configuration only.
TFP0NN dimensions
Frame size ,25 ,45 ,57 ,76 1,3
Dimension
Inlet/Outlet M10 x 1
A 53.5 [2.10] 55.0 [2.16] 56.0 [2.20] 61.5 [2.42] 61.5 [2.42] B 26.5 [1.04] 27.3 [1.07] 27.8 [1.09] 30.5 [1.20] 30.5 [1.20]
Model code examples and maximum shaft torque
Flange/drive gear Model code example 01FA TFP0NN/,57RN01FAP1D1D1NNNN/NNNNN 4.5 N•m [39.8 lb•in]
Maximum shaft torque
For further details on ordering, see Product Code on page 8.
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Technical Information

Group 1

Pump design

SNP1NN

SNP1NN pumps only include European flange and shaft configurations (code 01BA, 01DA, and 03CA).
SNP1NN 01BA (cut away)
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Technical Information
Group 1

SKP1NN

SKP1NN has a larger diameter shaft than the SNP1NN. It spans the complete displacement range at higher pressures than the SNP1IN and the SNP1NN. Configurations include European and SAE flanges and shafts (code 02BB, 02FA, 06SA, and 06GA).

SKP1IN

Danfoss offers an optional integral relief valve integrated in the rear cover. It is drained internally and directs all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. SNI1 pumps only include European flange and shaft configurations (code 01BA, 01DA, and 03CA).
SNP1IN 03CA (cut away)
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