Feed Pumps

FZP / MFZP

Symbol Operation Data

Operating pressure max. 10 bar
Pressure at the suction port ll max. -0.4 bar suction underpressure
ll max. 0.5 bar overpressure
Medium Mineral oil to DIN 51524 Part 1 and Part 2
Permissible contamination ≤ NAS 12
Temperature of medium -20 °C to +80 °C for mineral oil
Viscosity See characteristic curves
Ambient temperature -20 °C to +40 °C
Mounting position No restrictions
RPM ll min. 1,000 rpm
ll max. 2,000 rpm
Direction of rotation – right-turning (view of motor fan wheel)
Drive (only MFZP) Drive type: electric motor
Current type: three-phase current
General For power and voltage see model code
Protection class: IP 55
The feed pump from the FZP series Insulation class: F
is a vane pump for the low-pressure Volumetric efficiency > 90% (at υ = 40 mm²/s)
range with constant flow rate.
Weights FZP-1: 1.4 kg
FZP-2: 3.9 kg
Product Features
FZP-3: 9.6 kg
ll Direct drive pump – MFZP-1/2.0 0.18 kW 6.0 kg
no bell housing or coupling required
MFZP-1/2.0 0.37 kW 7.4 kg
ll Standard with internal pressure
limitation valve MFZP-2/2.1 0.75 kW 13.5 kg
ll Optional with flange-mounted motor MFZP-2/2.1 1.50 kW 19.5 kg
ll Small construction lengths MFZP-3/3.0 2.20 kW 32.5 kg
MFZP-3/3.0 4.00 kW 39.5 kg
Application Field Noise levels ccm/rev 1 bar 6 bar
ll Filter circuits 3.5 58 62
ll Cooling circuits Size 1 7.0 58 63
ll Lubrication technology 10.0 60 64
ll Pump transfer units 20.0 66 68
Size 2 30.0 67 68
40.0 69 70
70.0 69 71
Size 3 100.0 76 78
130.0 77 78
Test fluid: ISO VG46 at 40 °C (40 mm²/s)
The noise level values serve as guidelines,
as room acoustics, connections, viscosity and reflection
affect the level of noise.
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 Design
Rotor
Motor flange
Control disk

Pump flange

Interior ring

Retaining ring

O-ring

Liner

Radial shaft seal

O-ring

Vane
Pressure limitation valve
O-ring

Note regarding tubing

pressure differences (flow loss)
ll Simplified for hydraulic oils:
l [m]
Dp [bar] = 5.84 ⋅ 4 ⋅ Q [l/min] ⋅ g [mm2/s]
d [mm]

ll Influence of the interior diameter on flow losses

with the following example values:
l = 1 m, Q = 150 l/min, g = 200 mm²/s

Internal diameter [mm]

di1 (38) di1 (32) di1 (25)

Δp [bar] 0.084 0.167 0.45

ll Observations apply only for straight pipes

ll Additional threaded joints and pipe bends increase flow loss

Note:
ll As few threaded connections as possible
ll Few pipe bends – where bends are used, with large bending radius
ll Difference in height between pump and oil level as small as possible
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ll Hoses must be suitable for a vacuum of min. 5,000 mmW

(e.g. by means of steel wire insert)
ll Do not reduce the pipe cross-section determined by the threaded connection

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Control Curves
FZP-1 FZP-2 FZP-3

1,800 1,800 1,800

1,600 1,600 1,600

1,400 1,400 1,400

1,200 1,200 1,200

F
V [mm2/s]

V [mm2/s]

V [mm2/s]
1,000 1,000 1,000 F
F
E
800 800 800

E
600 600 600

D
400 400 400
C D E
B
200 200 200
D
A
A B C A B C
0 0 0
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
p [bar] p [bar] p [bar]

A 10.0 cm³ / rev – 0.18 kW / 0.2 kW DC A 40 cm³ / rev – 0.75 kW A 130 cm³ / rev – 2.2 kW

B 7.0 cm³ / rev – 0.18 kW / 0.2 kW DC B 30 cm³ / rev – 0.75 kW B 100 cm³ / rev – 2.2 kW
C 3.5 cm³ / rev – 0.18 kW / 0.2 kW DC C 20 cm³ / rev – 0.75 kW C 70 cm³ / rev – 2.2 kW
D 10.0 cm³ / rev – 0.37 kW D 40 cm³ / rev – 1.5 kW D 130 cm³ / rev – 4.0 kW
E 7.0 cm³ / rev – 0.37 kW E 30 cm³ / rev – 1.5 kW E 100 cm³ / rev – 4.0 kW
F 3.5 cm³ / rev – 0.37 kW F 20 cm³ / rev – 1.5 kW F 70 cm³ / rev – 4.0 kW

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 Viscosity-temperature graph
to DIN 51519 viscosity index 50

10,000

5,000
4,000
IS
3,000 O
VG
2,000 IS
O 15
IS VG 00
O 1
1,000 IS VG 000
O 6
IS VG 80
500 O 46
400 IS VG 0
O 32
Kinematic viscosity in mm²/s

300 IS VG 0
O 2
V 2
200 IS G 1 0
O
V 50
IS G 1
O
100 V 00
IS G 6
O
V 8
50 ISO G 46
V
40 ISO G 3
30 V 2
ISO G 22
20 VG
ISO 15
VG
ISO 10
10
VG
ISO 7
VG
5 5
4
ISO
VG
3 ISO V 3
G2
2

1
10 20 30 40 50 60 70 80 90 100
Temperature in °C

Design
Pump (FZP or MFZP) selected in accordance with customer specifications.

Example:
Flow rate: 190 l/min
Counter-pressure: 5 bar
Viscosity: 200 cSt
Motor voltage: 400 V – 50 Hz

Selection:
190 l/min → FZP-3 / MFZP-3 (approx. 130 ccm/rev at 1,500 rpm)
5 bar and 200 cSt → drive power 4 kW (= motor size 112)

Result:
FZP-3/3.0/P/100/130/RV6
MFZP-3/3.0/P/112/130/RV6/4/400-50
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Dimensions
FZP B
H I

E4

S P

E3

E2
E1
G

A
K

C
J

L
45°
D

[mm]

Assembly Flow capacity Pump dimensions

l/min at
n = 1,500 rpm
A B C D E1 E2 E3 E4 F G H I J K L

1 5 – 15 105 75 70 26 14 17 24 5 70 G¾ 20.00 20.00 G½ 85 7

19 20 35 7
2 30 – 60 160 100 100 33 110 G 1 ¼ 30.00 35.00 G1 130 9
24 25 35 7

3 100 – 200 200 130 140 35 28 30 40 7 130 G2 43.75 43.75 G 1 ½ 165 11

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 Dimensions
MFZP

G F

E
C
A B H I

K D

[mm]

A B C D E F G H I

MFZP-1/2.0/X/63 89 80 7 100 63 G½ G¾ 20.00 20.00

MFZP-1/1.1/X/AMG 117 80 7 100 63 G½ G¾ 20.00 20.00

MFZP-1/1.1/X/71 120 90 7 112 71 G½ G¾ 20.00 20.00

MFZP-2/2.1/X/80 150 100 9 125 80 G1 G 1 ¼ 30.00 35.00

MFZP-2/2.1/X/90 156 125 9 140 90 G1 G 1 ¼ 30.00 35.00

MFZP-3/3.0/X/100 193 140 12 160 100 G 1 ½ G2 43.75 43.75

Construction length “K” of motor pump groups:

El. motor size Flange Length “K” [mm]

MFZP-1 63 / 0.18 kW Spec. flange approx. 260

MFZP-1 AMG / 0.2 kW / B34 Small flange approx. 245

MFZP-1 71 / 0.37 kW / B34 Small flange approx. 320

MFZP-2 80 / 0.75 kW / B34 Large flange approx. 340

MFZP-2 90 / 1.2 kW / B34 Large flange approx. 380

MFZP-3 100 / 2.2 kW / B34 Large flange approx. 450

MFZP-3 100 / 4 kW / B34 Large flange approx. 480

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Model Type
 MFZP-2 - 2.1 - P - 90/40 - RV6 - 1.5/400-50
Motor pump group MFZP
(with motor)

Direct drive pump FZP

Assembly
1
2
3

Modification number
(see flow rate table)

Seals
P = Perbunan
V = Viton
(other seals on request)

Motor size and flow rate

Flow rate in ccm/revolutions
Modification (other rates on request)
Assembly Motor size
number
3.5 7 10 20 30 40 70 100 130
63 (0.18 kW, only MFZP) 2.0 ● ● ●
1 AMG (0.2 kW, DC) 1.1 ● ● ●
71 (0.37 kW) 1.1 ● ● ●
80 (0.75 kW) 2.1 ● ● ●
2
90 (1.5 kW) 2.1 ● ● ●
100 (2.2 kW) 3.0 ● ● ●
3
112 (4.0 kW) 3.0 ● ● ●

Pressure relief valve

RV3 (3.0 bar)
RV4.5 (4.5 bar)
RV6 (6.0 bar) (preferred size)
RV10 (10.0 bar)

Motor power and voltage

n = 1,500 rpm
(other voltages and frequencies on request)

Size 1:
0.18 kW
0.37 kW

Size 2:
0.75 kW
1.50 kW

Size 3:
2.20 kW
4.00 kW

Standard voltages and frequencies in three-phase motors

400 V star / 230 V delta – 50 Hz
(other voltages and frequencies on request)
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 Design Data Sheet, Feed Pumps

Project:

Contact:

Telephone:

E-mail:

Medium: (Enclose data sheet for the medium)

Fluid temperature: °C

Fluid purity:

Spec. materials prescribed?

Seal material: ○ Perbunan (NBR) ○ Viton (FPM)

○ Other:
Flow rate: l/min

Suction height: m

Operating pressure: bar

Max. pressure: bar (pressure limitation valve)

Electrical data
Motor rating: kW

Voltage: V Hz

Speed: rpm

Direction of rotation:

Installation position
of the pump:

Installation space limited?

Permitted noise level: dB(A)

Ambient temperature: °C

Unit qty. per year:

Remarks /miscellaneous:
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E 5.701.7 / 08.16
 Note
The information in this brochure
relates to the operating conditions and
applications described.
For applications and operating conditions
not described, please contact the
relevant technical department.
Subject to technical modifications and
corrections.

HYDAC COOLING GMBH Industriegebiet

66280 Sulzbach/Saar
Germany
Tel.: +49 6897 509-01
Fax: +49 6897 509-454
E-mail: cooling@hydac.com
Internet: www.hydac.com

HYDAC AG Via Sceresa, Zona Industriale 3

Mezzovico 6805 Mezzovico
branch office Switzerland
E 5.701.7 / 08.16

Tel.: +41 91 9355-700

Fax: +41 91 9355-701
E-mail: info@hydac.ch
Internet: www.hydac.com

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