RE 10 030/03.00 External Gear Pump Type G2, Series 4X: Up To 22.4 CM Up To 250 Bar NS 4 To 22 Replaces: 04.99
RE 10 030/03.00 External Gear Pump Type G2, Series 4X: Up To 22.4 CM Up To 250 Bar NS 4 To 22 Replaces: 04.99
00
1 PF 2 G2-4X/011 RC 20 MB
1 PFG2-4X/011 RR 20 MRK + Special version (S107) with a common suction port, on request
1 PFG2-4X/011 LN 20 MDN + 2 PF 2 G2-4X/011 + 05 LR 20 MR S107
1 PFG2-4X/008 LN 20 MDL
Functional description, section
Type G2 hydraulic pumps are self-priming external gear pumps. level in the tank causes the pressure fluid to flow to the pump
Their task is to produce a constant flow and at the same time from the tank. This pressure fluid fills the gear chambers and is
pass on the required forces. moved, in the direction of the arrow (see sectional drawing), from
They mainly consist of the housing (1), mounting flange (2), drive the suction to the pressure side.
shaft (3), 2 bearing blocks (4), bearing bush (5) and discs (6) for Here the gears mesh once more and push the pressure fluid out
the hydrostatic gap compensation. of the gear chambers and prevent return flow to the suction
The gears separating during the rotational movement releases chamber.
the gear chambers. The negative pressure resulting from this, as In order to avoid hard and jolting running of the pump, small
well as the atmospheric pressure acting on the pressure fluid unloading grooves are cut into the sides of the bearing blocks
(4). The so called "squashed fluid" is passed into the pressure
chamber.
7 Suction side
4 6 8 Pressure side
9 Drive gear
(clockwise
rotation)
9 10 Driven gear
7
5
3 8
10
2
1
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Ordering details
1 PF 2 G2 - 4X *
Series 40 to 49 = 4X Further details
(40 to 49: unchanged installation in clear text
and connection dimensions) No code = Single pump
(Nominal flow) NS K= Front pump for combination
4 cm3 4 = 004 L= Rear pump for combination
5.5 cm3 5 = 005 N= Centre pump for combination
8.2 cm3 8 = 008 B= Rectangular flange Ø 80 mm
11 cm3 11 = 011 P= 2-hole fixing Ø 50 mm
14.1 cm3 14 = 014 1) R= SAE-A-2-hole flange Ø 82.5 mm
16.2 cm3 16 = 016 M= 2-hole fixing Ø 52 mm
19 cm3 19 = 019 1) O= Rectangular flange Ø 36.5 mm
22.4 cm3 22 = 022 A= Front bearing Ø 80 mm
Clockwise rotation =R D= Combination flange for G2
Anti-clockwise rotation =L (rear and centre pump)
H= Combination flange for G3, G4
Conical shaft 1:5 Ø 17 mm =C
Splined shaft SAE-A 5/8", 9 teeth =R M= NBR seals up to 80 °C
Conical shaft with coupling for single pump, K= FKM shaft seal ring
centre/rear pump =N other seals NBR
Conical shaft 1:5 Ø 20 mm for front bearing =S (connection to diesel engines)
Cylindrical shaft ISO Ø 18 (with 01 ports) =A 20 = Suction and pressure port square
Conical shaft 1:8 Ø 17.4 mm =H flange, metric mounting threads
01 = Pipe thread to ISO 228/1
1
) Nominal sizes 14 and 19 are not available with (with cylindrical shaft A)
cylindrical shaft type A 30 = Suction and pressure port square flange,
metric mounting threads at the vertical and
Ordering examples for single pumps:
horizontal connection axis (Italian version)
1 PF 2 G2-4X/005 RC 20 MB Material No. 07363013
1 PF 2 G2-4X/016 RC 20 MBK Material No. 07363115
(only front pump) Note: Only pump types which are listed in the
catalogue sheets and have material numbers are
1 PF 2 G2-4X/008 LN 20 MDL Material No. 07363126
available.
(only rear pumps) Other types on request.
Flange fittings for pipe connections
Ordering example for multiple pumps:
and pump mounting brackets to catalogue sheet
1 PF 2 G2-4X/008 RC 20 MBK Material No. 07363109 RE 32 110 for rectangular flanges version "B"
1 PF 2 G2-4X/004 LN 20 MDL Material No. 07363122 have to be ordered separately.
Combination parts G2/008 + G2/004
Multiple pumps are supplied completely assembled. The combination parts, however, have to be listed as separate items within an
order (see ordering details). The material no. of the combination parts is entered during order processing.
It is possible to order the combination parts as a kit on their own. For the ordering codes see the multiple pump's example. The kit
consists of 2 tie rods and 2 nuts. The coupling is included within the scope of supply of the rear or centre pump.
Symbols
Single pump Double pump
P P P P P
S S S S
On request
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RE 10 030/03.00
Technical data (for applications outside these parameters, please consult us)
Pressure fluid: Mineral oil to catalogue sheet RE 07 075. Maximum permissible degree of contamination of the pressure
For operation with HFC-, HFD-, HETG-, HEPG- and HEES fluid is to NAS 1638, class 10. We, therefore, recommend a filter
fluids see RE 10 025-S. with a minimum retention rate of ß20 ≥ 100. To ensure a long
service life we recommend class 9, NAS 1638; achievable with
Pressure fluid temperature range: – 15 to + 80 °C. a filter retention rate of ß10 ≥ 100.
For higher temperatures please consult us
Drive type: Elastic operating, for other drive types please
Ambient temperature range: – 15 to + 60 °C consult us
Viscosity range: Installation: Optional
10 to 300 mm2/s (recommended viscosity range ) Direction of rotation: The pump must only be driven in the
1000 mm2/s (permissible start-up viscosisty) given direction of rotation
Weight: See table for individual pump types
Nominal size 4 5 8 11 14 16 19 22
Nominal flow cm3 4 5.5 8.2 11 14.1 16.2 19 22.4
Operating pressure, inlet: bar pabs min 0.7
absolute pressure pabs max 3.0
Max. continuous pressure p1 bar 250 250 250 250 250 250 240 210
Max. peak pressure p2 (106 peaks) bar 275 275 275 275 275 275 270 230
Max. speed at continuous pressure p1 min-1 5000 4000 4000 4000 3500 3000 3000 2500
Min. speed at p = 180 bar min-1 1000 1000 700 500 500 500 500 500
Min. speed at p1 min-1 1200 1200 1000 700 700 700 700 700
90
NS
NG88 NS22
NG22
80 NS 19
NG 19
30
Drive torque T in Nm →
70 NS 16
NG 16
60 NS
NG 14
14
NS 55
NG
20 50 NS 11
NG 11
40
NS 44
NG NS 88
NG
30
10 NG
NS 55
20 NG
NS 44
10
0 0
1000 2000 3000 4000 50 100 150 200 250
Speed in min-1 → Pressure p in bar →
250
10 p in bar 10 p in bar
NG
NS 44 NG
NS 55
Drive power P in kW →
Drive power P in kW →
250 200
8 8
200 150
6 6
150
100
4 4
100
50 50
2 2
0 0
1000 2000 3000 4000 1000 2000 3000 4000
1450 1450
Speed in min-1 → Speed in min-1 →
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RE 10 030/03.00
Characteristic curves (measured at ν = 41 mm2/s and ϑ = 50 °C)
20 p in bar 20 p in bar
NS
NG 8 NG
NS11
11 250
Drive power P in kW →
Drive power P in kW →
250
15 15 200
200
150
10 10
150
100
100
5 5 50
50
5 5
0 0
1000 2000 3000 4000 1000 2000 3000 4000
1450 1450 3500
Speed in min-1 → Speed in min-1 →
p in bar 250
20 20
NG
NS 14
14 250 NS 16
NG 16 p in bar
200
Drive power P in kW →
Drive power P in kW →
200
15 15
150
150
10 10
100
100
5 5 50
50
5
5
0 0
1000 2000 3000 4000 1000 2000 3000 4000
1450 1450
Speed in min-1 → Speed in min-1 →
p in bar
25 240 25 p in bar
NS19
NG 19 NS 22
NG 22
200 210
20 20
200
Drive power P in kW →
Drive power P in kW →
150
15 15 150
100
10 10 100
50
5 5 50
0 0
1000 2000 3000 4000 1000 2000 3000 4000
1450 1450 2500
Speed in min-1 → Speed in min-1 →
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C R
Conical shaft 1: 5, Ø 17 mm Splined shaft SAE-A 5/8", 9 teeth, 16/32 D/P
tooth thickness t = 2.357 -0,030
31
Tightening torque:
+10
70 0 Nm
24
3 – 0,025 16
1,8
M12 x 1,5
Ø 15,456
Ø 17,5
Ø 17
1:5
13 17
1 Dimension is
dependent on the
flange type
(see page 6) 1
S N
Conical shaft 1: 5, Ø 20 mm Shaft with claw coupling for single pump,
for front bearing centre/rear pump
7,2
3,2 +0,1
Tightening torque: 2
+10
1111 ±0,1
±0,1
70 0 Nm 4 h7
8 d9
1,9
f7
–0,1
M14 x 1,5
Ø 17,8
X
Ø 52
Ø 32
Ø29
Ø 29
Ø 20
Ø 47,5
1:5
"X"
15,5 20 9,5
3 ±0,2
45 2
+0,2
6,5
2 O-ring and coupling are
included within the scope of
supply
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Shaft end (Dimensions in mm)
A H
Cylindrical shaft ISO Ø 18 mm Conical shaft 1:8, Ø 17.4 mm
Tightening torque:
70 +10
0
Nm
3h9
M12 x 1,5
6h9
1,8
ø18js7
16,65
20,5
17,4
1:8
3 22
28 12
36 12,5 28
L
B
L2
7,2 13 90
5 72
9 ±0,11
43,5
34,5
Ø 80 -0,060
102,5
100
118
D2 D1 3
4 84
±0,15
Direction of rotation: Anti-clockwise (version "L") viewed on the shaft end. 3 Suction side 5 Cylindrical shaft
With clockwise rotation version "R" the suction and pressure ports are exchanged! 4 Pressure side Ø 18
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Unit dimensions, ordering details (dimensions in mm, A = preferred types)
90° 90°
43,5
–0,106
–0,060
34,5
4 5° 45°
Ø80
102,5
100
118
16,2
+0,55
7,7 +0,90
3
38 20*) 15
84 ±0,15
4 4xM6; 13
4xM6; 13 40 35
90° 90°
45° 45°
34
–0,025
Ø50 –0,050
14,5
±0,1
102,5
16,2
60
+0,3
10,5–0,4
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Unit dimensions, ordering details (dimensions in mm, A = preferred types)
90° 90°
47,5
45° 45°
Ø82,55 h8
116
102,5
16,2
20*) 84±0,15 15
4xM6; 13
40 3 35
4
*) Ø 15 with nom. sizes 4 and 5
3 Suction side 5 Splined shaft
Direrction of rotation: Anti-clockwise (version "L") viewed on the shaft. (see page 5)
With clockwise rotation version "R" the suction and pressure ports are exchanged! 4 Pressure side
7,2 B 4xM6; 13 30
5; 6
90° 90°
34
45° 45°
14,5
Ø52f7
6 ±0,1
102,5
16,2
60
Ø11–0,1 3 15
20*) 4xM6; 13
60 ±0,1 35
40
84 ±0,15 3 Suction side
4 4 Pressure side
(M10 – 10.9)MA = 60 Nm
*) Ø 15 with nom. sizes 4 and 5 5 Shaft with claw
coupling
Dirrection of rotation: Anti-clockwise (version "L") viewed on the shaft. (see page 5)
With clockwise version "R" the suction and pressure ports are exchanged! 6 Pump without
Attention: With NS 19 and 22 pressure limitation due to maximum permissible torque (see page 3). shaft seal ring
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5 8 13,5 90
0,5x45° 72
9,5 ±0,5
43,5
90° 90°
34,5
45° 45°
Ø80 –0,0
–0,1
102,5
100
118
16,2
20*) 15
4xM6; 13 84±0,15 35
40 4xM6; 13
4 3
Direction of rotation: Anti-clockwise (version "L") viewed on the shaft end. 3 Suction side
With clockwise rotation version "R" the suction and pressure ports are exchanged! 4 Pressure side
Attention: With NS 19 and 22 pressure limitation due to maximum permissible 5 Conical shaft
torque at the front bearing (see page 3). 1 : 5; Ø 20 mm
(see page 5)
7
b b = 45 mm
6 F b = 37 mm
Fa = 0
b = 30 mm
5
b = 24 mm C
106
Lh = ( dyn )3
b = 20 mm n • 60 F'dyn
F'dyn in KN →
3
n = Speed in min-1
Lh = Theorectical bearing life in hours
2
F 'dyn = Equivalent dynamic load
Cdyn = Dynamic load constant 21,2 kN
1
0
0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,5
Radial force F in KN →
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87,5
L
ø36,5 f7
13
1,8
40,5
33,5
32,5
112
96
102
16,3
øC
12,5 28 ø13,5 84 øD
ø30,2 44holes
trous M6x13 44 trous
holes ExF
3 4
3 Suction side
4 Pressure side
Direction of rotation: Clockwise (version "R") viewed on the shaft end. 5 Conical shaft
With anti-clockwise rotation version "L" the suction and pressure ports are exchanged! 1:8 ; Ø 17.4 mm
(see page 6)
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Pump I Pump II
Technical data (for applications outside these parameters, please consult us)
– The same general parameters apply as with single pumps Weight: See table of individual pump types
(see page 3) Combination parts: plus 0.4 kg
90
NS 22
NG Permissible torques at shaft end:
80 NS 19
NG 19
Drive torque T in Nm →
70 NS 16
NG 16 A = Cylinderical shaft Ø 18 mm Tmax = 70 Nm
NS 14
NG 14 C = Conical shaft 1 : 5; Ø 17 mm Tmax = 150 Nm
60
50 NS 11
NG 11 R = Splined shaft SAE-A 5/8" Tmax = 110 Nm
40 H = Conical shaft 1 : 8; Ø 17.4 mm Tmax = 150 Nm
NS 88
NG
30 N = Shaft with tongued coupling Tmax = 70 Nm
NG
NS 5
20 NS 44
NG Coupling between pump I and pump II Tmax = 70 Nm
10
0
50 100 150 200 250
Pressure p in bar →
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Direction of rotation:
Clockwise =R
Dim. C and D Anti-clockwise =L Shaft ends (A, C, N, R)
Front pump
Dim. C
Dim. D
005 008 011 014 016 019 022
004 84.75 84.5 86.5 88.75 92.25 94.25 94.75 46.0
005 84 83.75 85.75 88 91.5 93.5 94 51.5
008 87.5 89.5 91.75 95.25 97.25 97.75 48.0
Rear pump