FIXED DISPLACEMENT VANE PUMPS

PVV

Material #: R900931138

Model : PVV2-1X/040RA15UMB

Fixed displacement Long bearing life through hydraulic relief of the shaft Low wear due to hydraulically unloaded vanes Low operating noise Easy to service due to exchangable pump cartridges Good efficiency Position of the pressure ports can be chosen Drive direction of rotation clockwise or counterclockwise Drive shaft optionally cylinderical or splined Double pump Very compact build Position of the pressure ports can be chosen separately

This product is not available. Please call 888-REXROTH to speak to a local distrubutor who can assist in locating your part or a suitable replacement

Fixed displacement Long bearing life through hydraulic relief of the shaft Low wear due to hydraulically unloaded vanes Low operating noise Easy to service due to exchangable pump cartridges Good efficiency Position of the pressure ports can be chosen Drive direction of rotation clockwise or counterclockwise Drive shaft optionally cylinderical or splined Double pump Very compact build Position of the pressure ports can be chosen separately

Hydraulic pumps of type PVV are vane pumps with constant displacement. The rotor (2) running in a stator ring (3) is located on the tooth profile of the drive shaft (1). The slots of the rotor accommodate the vanes (4) which are pressed against the internal surfaces of the stator ring by the centrifugal force upon rotation of the rotor. The displacer chambers are laterally sealed by the control plates (5). Due to the double-eccentric design of the stator ring, there are in each case two pressure chambers opposite of two suction chambers, which provides for hydraulic unloading of the shaft. So it only has to transmit the torque. The vanes are partially unloaded upon passage through the suction range. This unloading has a wear-reducing effect and ensures high efficiency. By simply removing the cover (6), the pump insert (consisting of rotor, vane, stator ring and control plates) can be removed without the need of removing the housing (7) from the pump carrier. This allows for fast maintenance and repair of the pump.

Double pumps are formed by installing two pump installation kits on one joint shaft. The oil inlet is realized by one joint suction port in the central housing (10). The oil outlet is realized separately by both pump installation kits. For the front pump installation kit, the pressure port is located in the flange housing, for the back pump installation kit in the cover. The larger pump installation kit is always located on the flange housing side. Pump installation kits of the same frame size cannot be used as double pumps.

 

01

02

03

04

05

06

07

08

09

10

11

12

13

PVV

1X

/

15

*

Pump type

01

Industrial version

PVV

Frame size

02

See selection table

(e.g. single pump = 2, double pump = 52)

Component series

03

Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)

1X

Displacement

04

See selection table

(e.g. 55.2 cm3 = 055)

Direction of rotation

05

clockwise

R

counterclockwise rotation

L

Shaft end version

06

Cylindrical drive shaft (standard)

A 1)

Cylindrical drive shaft (reinforced version) only BG2 to B54

B

Multi-spline shaft

J

Line connection

07

Suction and pressure port: SAE flange connection, mounting thread UNC

15

Position of the pressure connection at the flange (looking at the cover)

08

top (0° from the input)

D

right (90° to the right of the input)

R

counterclockwise (90° to the left of the input)

L

bottom (180° from the input)

U

Position of the pressure connection at the cover (looking at the cover), only with double pumps

09

BG21, 41, 42, 51, 52

top (45° from the input)

D

right (135° to the right of the input)

R

counterclockwise (45° to the left of the input)

L

bottom (135° to the left of the input)

U

BG54

top (0° from the input)

D

right (90° to the right of the input)

R

counterclockwise (90° to the left of the input)

L

bottom (180° from the input)

U

Seal material

10

NBR seals

M

FKM seals

V

Flange design

11

BG1, 2, 21

101-2 (SAE-B)

B

BG4, 5, 41, 42, 51, 52, 54

127-2 (SAE-C)

C

Through-drive

12

Non through-drive

no code

82-2, 16-4 (SAE-A, 9T)

K01

101-2, 22-4 (SAE-B, 13T)

K02

127-2, 32-4 (SAE-C, 14T)

K07

Additional details

13

Further details in the plain text

*

1) Not available for through-drive pumps

Order example

Single pump: Industrial version (also as mobile version)

PVV 2-1X/055RA15DMB

Double pump: Mobile version (also as industrial version)

PVQ 52-1X/154-068RB15DDMC

Selection table

Single pump without through-drive

    

Single pump with through-drive

Frame size

Displacement

Frame size

Frame size

Displacement

1

18 cm3

= 018

2

40,1 cm3

= 040

27,4 cm3

= 027

45,4 cm3

= 045

36,4 cm3

= 036

55,2 cm3

= 055

39,5 cm3

= 040

60,0 cm3

= 060

45,9 cm3

= 046

67,5 cm3

= 068

2

40,1 cm3

= 040

4

69,0 cm3

= 069

45,4 cm3

= 045

81,6 cm3

= 082

55,2 cm3

= 055

97,7 cm3

= 098

60,0 cm3

= 060

112,7 cm3

= 113

67,5 cm3

= 068

121,6 cm3

= 122

4

69,0 cm3

= 069

5

138,6 cm3

= 139

81,6 cm3

= 082

153,5 cm3

= 154

97,7 cm3

= 098

162,2 cm3

= 162

112,7 cm3

= 113

183,4 cm3

= 183

121,6 cm3

= 122

193,4 cm3

= 193

5

138,6 cm3

= 139

153,5 cm3

= 154

162,2 cm3

= 162

183,4 cm3

= 183

193,4 cm3

= 193

Selection table

Double pump

Frame size

flange-side

cover-side

Displacement

21

40,1 cm3

= 040

18 cm3

= 018

45,4 cm3

= 045

27,4 cm3

= 027

55,2 cm3

= 055

36,4 cm3

= 036

60,0 cm3

= 060

39,5 cm3

= 040

67,5 cm3

= 068

45,9 cm3

= 046

41

69,0 cm3

= 069

18 cm3

= 018

81,6 cm3

= 082

27,4 cm3

= 027

97,7 cm3

= 098

36,4 cm3

= 036

112,7 cm3

= 113

39,5 cm3

= 040

121,6 cm3

= 122

45,9 cm3

= 046

42

69,0 cm3

= 069

40,1 cm3

= 040

81,6 cm3

= 082

45,4 cm3

= 045

97,7 cm3

= 098

55,2 cm3

= 055

112,7 cm3

= 113

60,0 cm3

= 060

121,6 cm3

= 122

67,5 cm3

= 068

51

138,6 cm3

= 139

18 cm3

= 018

153,5 cm3

= 154

27,4 cm3

= 027

162,2 cm3

= 162

36,4 cm3

= 036

183,4 cm3

= 183

39,5 cm3

= 040

193,4 cm3

= 193

45,9 cm3

= 046

52

138,6 cm3

= 139

40,1 cm3

= 040

153,5 cm3

= 154

45,4 cm3

= 045

162,2 cm3

= 162

55,2 cm3

= 055

183,4 cm3

= 183

60,0 cm3

= 060

193,4 cm3

= 193

67,5 cm3

= 068

54

138,6 cm3

= 139

69,0 cm3

= 069

153,5 cm3

= 154

81,6 cm3

= 082

162,2 cm3

= 162

97,7 cm3

= 098

183,4 cm3

= 183

112,7 cm3

= 113

193,4 cm3

= 193

121,6 cm3

= 122

01

02

03

04

05

06

INSTALLATION KIT

PVV

1X

/

Pump type

01

Industrial version

PVV

Frame size

02

Frame Size 1

1

Frame Size 2

2

Frame size 4

4

Frame size 5

5

Component series

03

Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)

1X

Size / displacement

04

Frame Size 1

18,0 cm3

018

27,4 cm3

027

45,4 cm3

036

39,5 cm3

040

45,9 cm3

046

Frame Size 2

40,1 cm3

040

45,4 cm3

045

55,2 cm3

055

60,0 cm3

060

67,5 cm3

068

Frame size 4

69,0 cm3

069

81,6 cm3

082

97,7 cm3

098

112,7 cm3

113

121,6 cm3

122

Frame size 5

138,6 cm3

139

153,5 cm3

154

162,2 cm3

162

183,4 cm3

183

193,4 cm3

193

Direction of rotation

05

clockwise

R

counterclockwise rotation

L

06

Installation kit for single pumps or flange-side for double pump

no code

Installation kit for cover-side installation in double pumps

D

Frame size

 

1 2 4 5

Size

 

18 27 27 27 46 40 45 55 60 68 69 82 98 113 122 139 154 162 183 193

Component series

 

1X

Mounting type

 

Flange mounting according to SAE J744

Line connections

 

SAE flange design (mounting thread: UNC)

Installation position

 

Any, inlet port at top preferred

Shaft load

 

Radial and axial forces cannot be transmitted

Direction of rotation

 

Drive direction of rotation clockwise or counterclockwise

Drive

 

Direct, coaxial drive

Drive speed 1) 2)

n

 

rpm

600 ... 1,800

Displacement

Vg

 

cm³

18 27.4 36.4 39.5 45.9 40.1 45.4 55.2 60 67.5 69 81.6 97.7 112.7 121.6 138.6 153.5 162.2 183.4 193.4

Drive power 3)

Pmax

 

kW

1.1 1.5 2.2 3 4 5.5 7.5 11

Flow, max. 4)

qV

 

l/min

26 39 53 59 70 59 66 80 89 100 101 120 141 167 177 203 223 234 267 285

Operating pressure, absolute

Inlet 5) 6)

pmin-max

 

bar

0.83 ... 2.4

Outlet

pmax

 

bar

210 160 140 175

Pressure peak

pmax

 

At most 10 % over the max. permanent output pressure; not longer than 0.5 s

Mass 7)

m

 

kg

12 14.8 23 34
1) At 1 bar inlet pressure
2) If phosphoric acid esters (HFD-R) are used, adm. nmax = 1200 rpm
3) At Δp ≈ 0 bar, n ≈ 1450 rpm
4) at n = 1500 rpm, p = 0,7 bar, v = 25 mm2/s
5) Recommended: 1 ... 1,35 bar
6) If liquids containing water and phosphoric acid esters are used, at least 0,9 bar
7) Single pump without through-drive

Hydraulic fluid

Permissible hydraulic fluid 1)

Mineral oil (HLP) to DIN 51524-2

Hydraulic fluid temperature range 2)

°C

-10 … +70

Viscosity range

mm²/s

13 … 860

Maximum admissible degree of contamination of the hydraulic fluid 3)

Class 20/18/15 according to ISO 4406 (c)
1) For more information and data on the use of other hydraulic fluids please contact us.
2) Observe the admissible viscosity range!
3) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

For applications outside these parameters, please consult us!

The specified values for the max. drive speed apply to an absolute pressure at the input of 1 bar.

Depending on the absolute pressure at the input, the admissible max. speed must be corrected according to the following diagram.

BG1; BG2; BG4; BG21; BG41; BG42

BG5; BG51; BG52; BG54

Drive torque (measured with ν = 41 mm2/s; ϑ = 50 °C)

Sound pressure level measured in the low-noise chamber according to DIN 45635 part 26.

Distance microphone - pump = 1 m. ν = 41 mm2/s; n = 1500 and ϑ = 50 °C

BG1

BG2

BG4

BG5

The sound pressure levels for double pumps are - on the average - 1 to 3 db(A) higher than the values for single pumps.

Drive power (measured with ν = 41 mm2/s; ϑ = 50 °C)

n = 1500 min-1

n = 1800 min-1

Displacement, speed-dependent (measured with ν = 41 mm2/s; ϑ = 50 °C; p = 7 bar)

Flow loss, pressure-dependent (measured with ν = 41 mm2/s; ϑ = 50 °C)

Double pump

Single pump

Single pump PVV / PVQ, BG1

Dimensions in mm

1

Suction port SAE 1 1/2“

2

Pressure connection SAE 3/4"

3

cylindrical drive shaft

Shaft end for BG1

Version "A"

Cylindrical drive shaft (standard)
4 fitting key ▢ 4.76 x 31.8
Admissible torque 250 Nm
Dimensions in mm

Version J

Multi-spline shaft SAE-B 7/8”
13 teeth 16/32DP
Tooth thickness t = 2.261
Admissible torque 316 Nm
Dimensions in mm

Single pump PVV / PVQ, BG2; 4; 5

Dimensions in mm

1

Suction port

2

Pressure port

3

Cylindrical drive shaft (nominal dimensions of the drive shafts see double pump PVV / PVQ, BG54)

BG

Suction port

ØD5

D8-2B

B3

L6

L4

H1

2

SAE 1 1/2"

38 mm

1/2"-13UNC; 22 mm

69,9 mm

35,7 mm

120,6 mm

76,2 mm

4

SAE 2"

50,8 mm

1/2"-13UNC; 23,8 mm

77,7 mm

42,8 mm

125,5 mm

82,6 mm

5

SAE 3"

76,2 mm

5/8"-13UNC; 28,6 mm

106,3 mm

61,9 mm

153,2 mm

93,6 mm

BG

Pressure port

ØD6

D7-2B

B4

L7

L3

2

SAE 1"

25,4 mm

3/8"-16UNC; 19 mm

52,4 mm

26,2 mm

38,1 mm

4

SAE 1 1/4"

31,8 mm

7/16"-14UNC; 22 mm

58,7 mm

30,1 mm

38,1 mm

5

SAE 1 1/2"

38,1 mm

1/2"-13UNC; 23,8 mm

69,9 mm

35,7 mm

42,9 mm

BG

Mounting flange

B2

L1

H2

B1

ØD1

ØD2

ØD3

ØD4-0,05 mm

L2

L5

2

SAE-B

174 mm

14 mm

146 mm

121 mm

101,6 mm

9,5 mm

13 mm

117 mm

163 mm

64 mm

4

SAE-C

212 mm

17,5 mm

181 mm

148 mm

127 mm

9,5 mm

16 mm

140 mm

186 mm

70 mm

5

SAE-C

212 mm

17,5 mm

181 mm

148 mm

127 mm

12,7 mm

16 mm

159 mm

216 mm

83 mm

PVV / PVQ 2...K.. - with through-drive

Dimensions in mm

PVV / PVQ 4...K.. - with through-drive

Dimensions in mm

PVV, PVQ 5...K.. - with through-drive

Dimensions in mm

Double pump PVV / PVQ, BG21; 41; 42; 51; 52

Dimensions in mm

1

Suction port

2.1

Pressure connection, flange-side

2.2

Pressure connection, cover-side

3

Cylindrical drive shaft (nominal dimensions of the shaft ends see shaft end for BG2 to 54)

BG

Mounting flange

B1

ØD1

ØD2

ØD3

ØD4-0,05 mm

L2

L5

21

SAE-B

174 mm

14 mm

146 mm

121 mm

101,6 mm

9,5 mm

13 mm

41; 42

SAE-C

212 mm

17,5 mm

181 mm

148 mm

127 mm

9,5 mm

16 mm

51; 52

SAE-C

212 mm

17,5 mm

181 mm

148 mm

127 mm

12,7 mm

16 mm

BG

Suction port

ØD5

D8-2B

B3

L6

L4

H1

21

SAE 1 1/2"

63,5 mm

1/2"-13UNC; 23,8 mm

88,5 mm

50,8 mm

101,6 mm

84,1 mm

41; 42

SAE 3"

76,2 mm

5/8"-11UNC; 28,6 mm

106,3 mm

61,9 mm

114,4 mm

88,9 mm

51; 52

SAE 3 1/2"

88,9 mm

5/8"-11UNC; 31,8 mm

120,7 mm

69,9 mm

119,3 mm

102,4 mm

BG

Pressure connection, flange-side

ØD6

D7-2B

B4

L7

L3

H4

21

SAE 1"

25,4 mm

3/8"- 16UNC; 19,1 mm

52,4 mm

26,2 mm

38,1 mm

76,2 mm

41; 42

SAE 1 1/4"

31,8 mm

7/16"- 14UNC; 21,6 mm

58,7 mm

30,1 mm

38,1 mm

82,6 mm

51; 52

SAE 1 1/2"

38,1 mm

1/2"- 13UNC; 23,8 mm

69,9 mm

35,7 mm

42,9 mm

93,6 mm

BG

Pressure connection, cover-side

ØD11

D12-2B

B5

L12

L11

H6

B2

L1

H2

21

SAE 3/4"

19,1 mm

3/8"-16UNC; 19,1 mm

47,6 mm

22,2 mm

88 mm

76,2 mm

132 mm

252 mm

64 mm

41

SAE 3/4"

19,1 mm

3/8"-16UNC; 19,1 mm

47,6 mm

22,2 mm

99,5 mm

74,7 mm

140 mm

275 mm

70 mm

42

SAE 1"

25,4 mm

3/8"-16UNC; 19,1 mm

52,4 mm

26,2 mm

109,5 mm

76,2 mm

143 mm

288 mm

74 mm

51

SAE 3/4"

19,1 mm

3/8"-16UNC; 19,1 mm

47,6 mm

22,2 mm

119,5 mm

74,7 mm

162 mm

306 mm

85 mm

52

SAE 1"

25,4 mm

3/8"-16UNC; 19,1 mm

52,4 mm

26,2 mm

135,8 mm

76,2 mm

162 mm

324 mm

85 mm

Double pump PVV / PVQ, BG54

Dimensions in mm

1

Suction port

2.1

Pressure connection, flange-side

2.2

Pressure connection, cover-side

3

Cylindrical drive shaft (nominal dimensions of the shaft ends see tables)

4

Fitting key (dimensions see table)

Shaft end for BG2 to 54

Dimensions in mm

Shaft design A

BG

L8

L9

H3

ØD9

Fitting key

Tmax in Nm

2; 21

46,8 mm

59 mm

24,5-0,2 mm

22,23-0,3 mm

▢ 4,76 mm x 31,8 mm

250

4; 41; 42

61,9 mm

73,2 mm

35,2-0,3 mm

31,75-0,3 mm

▢ 7,9 mm x 38,1 mm

407

5; 51; 52; 54

47,8 mm

62 mm

35,2-0,3 mm

31,75-0,3 mm

▢ 7,9 mm x 28,4 mm

610

Shaft design B

BG

L8

L9

H3

ØD9

Fitting key

Tmax in Nm

2; 21

64 mm

78 mm

28,3-0,2 mm

25,37-0,02 mm

▢ 6,36 mm x 50,8 mm

400

4; 41; 42

74,6 mm

86 mm

38,6-0,3 mm

34,9-0,03 mm

▢ 7,9 mm x 54,6 mm

600

5; 51; 52; 54

73 mm

88 mm

42,37-0,23 mm

38,07-0,02 mm

▢ 9,5 mm x 54,6 mm

810

Shaft design J

BG

L8

L9

L10

ØD10

Tmax in Nm

Gearing data

2; 21

33,3 mm

41 mm

4 mm

27,8 mm

316

SAE-B 7/8", 13 teeth, 16/32 DP

4; 41; 42

42,1 mm

56 mm

3,04 mm

35,05 mm

580

SAE-C 1/4", 14 teeth, 12/24 DP

5; 51; 52; 54

46,6 mm

56 mm

9,7 mm

41,28 mm

818

SAE-C 1/4", 14 teeth, 12/24 DP

Maximum admissible through-drive torques in Nm

BG

Through-drive

K01 (SAE-A, 9T)

K02 (SAE-B, 13T)

K07 (SAE-C, 14T)

2

131

316

-

4

131

316

437

5

131

384

702

SAE connection flanges

Suction port

Pressure connection for PVV / PVQ

1)​

NG

Seal material

Material number for flange with

B1

B2

B3

B4

ØD1

ØD2

D3

Mounting screws

Welded connection

Threaded connection

1; 21; 41; 51

3/4“

NBR

R900211169

R900063050

47,6 mm

65 mm

22,2 mm

52 mm

25 mm

19 mm

G3/4

3/8"-16UNC

2; 21; 42; 52

1“

NBR

R900211170

R900211175

52,4 mm

70 mm

26,2 mm

59 mm

30 mm

22 mm

G1

3/8"-16UNC

4; 41; 42; 54

1 1/4"

NBR

R900211363

R900211172

58,7 mm

79 mm

30,2 mm

68 mm

38 mm

28 mm

G1 1/4

7/16"-14UNC

5; 51; 52; 54

1 1/2"

NBR

R900211168

R900211171

69,9 mm

95 mm

35,7 mm

76 mm

38 mm

30 mm

G1 1/2

1/2"-13UNC

1; 2

1 1/2"

NBR

R900211165

R900211171

69,9 mm

95 mm

35,7 mm

76 mm

48 mm

39 mm

G1 1/2

1/2"-13UNC

4

2"

NBR

R900211434

R900211173

77,8 mm

102 mm

42,9 mm

90 mm

60 mm

49 mm

G2

1/2"-13UNC

21

2 1/2"

NBR

R900063063

R900211174

88,9 mm

114 mm

50,8 mm

104 mm

76 mm

62 mm

G2 1/2

1/2"-13UNC

5; 41; 42

3"

NBR

R900211362

106,3 mm

135 mm

61,9 mm

131 mm

76 mm

70 mm

5/8"-11UNC

51; 52

3 1/2"

NBR

R900211166

130,7 mm

152 mm

69,9 mm

140 mm

89 mm

82 mm

5/8"-11UNC

54

4"

NBR

R900211167

130,2 mm

162 mm

77,8 mm

152 mm

114 mm

107 mm

5/8"-11UNC

1) Bold figure specifies the stage for which the flange (with double pumps) is intended.

The material numbers comprise the flange, the O-ring and the mounting screws.

 

Pipe thread "G" according to ISO 228/1

Comprehensive information and suggestions are contained in the Hydraulics Trainer, volume 3, RE 00281, “Project planning information and design of hydraulic systems".

When using vane pumps, we recommend particularly observing the information specified below.

Technical data

All specified Technical data depend on production tolerances and are valid at certain boundary conditions.

Please note that consequently, fluctuations are possible and that with certain boundary conditions (e.g. viscosity), the Technical data may also change.

Characteristic curves

When designing the drive motor, please observe the maximum application parameters possible shown by the presented characteristic curves.

Noise

The values for sound pressure level shown on page 8 have been measured based on DIN 45635, sheet 26. That means that only the sound emission of the pump is shown.

Environmental influences (place of installation, piping, etc.) have not been considered.

These values are in each case only valid for one pump.

With unfavorable influences at the place of installation of the power unit, the sound pressure level may, however, still be 5 to 10 db(A) higher than the values of the pump itself.

Drive

Electric motor + pump carrier + coupling + pump

Attention!

no radial and axial forces on the pump drive shaft admissible! Motor and pump must be exactly aligned! use a torsionally flexible coupling

Fluid tank

Adjust useful volume of the tank to the operating conditions.

Attention!

The admissible fluid temperature must not be exceeded use coolers, if necessary!

Lines and connections

Cut with an inclination of 45° Remove the protective plug at the pump We recommend using seamless precision steel pipes according to DIN 2391 and releasable pipe connections. Select the inner width of the pipes according to the connections Pipelines and fittings must be carefully cleaned before assembly. – min. distance 120 mm to the tank bottom Dirt deposits are not sucked in or raised min. 50 mm immersion depth, also with lowest fluid level admissible Foam formation is avoided Leakage and return fluid must not be directly sucked in again under any circumstances! Liquid temperature remains low For the inlet pressure refer to the Technical data

Recommendation for pipe-laying

Return fluid must not be directly sucked in again under any circumstances, i.e. select the largest distance possible between suction and return line Return flow outlet must always lie below the oil level Ensure suction-tight assembly of the pipelines

 

Filter

Use return flow or pressure filter if possible. (Suction filters only in connection with underpressure switch/clogging indicator).

Hydraulic fluid

Please observe our provisions according to catalog sheet RE 07075. We recommend brand hydraulic fluids. Different hydraulic fluid types must not be mixed as this might result in degradation and deterioration of the lubricity. According to the operating conditions, the liquid must be renewed at certain time intervals. In this connection, it is also necessary to clean the fluid tank from residues.

admissible installation positions

horizontal position preferred

B3

B5

V1

Commissioning

Check whether the system has been assembled carefully and properly. Only fill in hydraulic fluid through filters with the required minimum retention rate. Observe the arrow indicating the direction of rotation. Start up the pump without load and allow to pump at zero pressure for some seconds in order to allow for sufficient lubrication. Do not operate the pump without oil under any circumstances. If the pump does not deliver medium without bubbles after approx. 20 seconds, the system must be checked once again. After the operating values have been reached, check the pipe connections for leak-tightness. Check the operating temperature.

Bleeding

Before the initial commissioning, we recommend filling the housing and the suction line of the pump with oil. This increases the operational safety and prevents wear in case of unfavorable installation conditions. During the initial commissioning, the foaming oil has to be discharged in circulation at zero pressure by carefully opening the pressure flange (provide splashguard, if necessary). Only re-tighten the fitting applying the specified torque if bubble-free oil exits.

General information

The pumps delivered by us have been checked for function and performance. Changes of any kind at the pump are not admissible; otherwise, the warranty will become void! Repair works may only be carried out by the manufacturer or their authorized dealers and agencies. No warranty is accepted for independently performed repairs.

Notice!

Assembly, maintenance and repair of the pump may only be carried out by authorized, trained and instructed personnel. Pump may only be operated with the admissible data (see Technical data)! The pump may only be operated if it is in an unobjectionable condition. For all works at the pump, depressurize the system! Unauthorized modifications or changes which affect the safety and function are not admissible! Apply protective devices (e. g. coupling guard) and/or do not remove existing protective devices! Always ensure tight seat of all mounting screws! (Observe the specified tightening torque) The generally valid safety and accident prevention regulations must be imperatively complied with!

For limitation of the operating pressure or (and) for the solenoid-actuated unloading of the operating pressure, we recommend our pump safety blocks according to RE 25880 and RE 25890.