67Variable Displacement Vane Pumps

Variable Displacement Single Vane Pump

The ‘VPVR’ series variable displacement single vane pump is widely used for machine tools etc.

VPVR-SF-20A-10

VPVR-SF-20B-10

VPVR-SF-20C-10

VPVR-SF-20D-10

VPVR-SF-30A-20

VPVR-SF-30B-20

VPVR-SF-30C-20

VPVR-SF-30D-20

VPVR-SF-40A-20

VPVR-SF-40B-20

VPVR-SF-40C-20

VPVR-SF-40D-20

Ratings

Model Number

Deliveryat unloading

1/min.1500 rpm

Pr. Adj. Rangekgf/cm2

Shaft SpeedRangerpm

min. max.

Max. operatingpressurekgf/cm2

Masskg

17

25

35

10 ~ 20

15 ~ 35

30 ~ 55

50 ~ 70

10 ~ 20

15 ~ 35

30 ~ 55

50 ~ 70

10 ~ 20

15 ~ 35

30 ~ 55

50 ~ 70

800 1500

20

35

55

70

20

35

55

70

20

35

55

70

5

9

Note :For performance characteristics, Ref. page 69 .The pump shaft should be rotated clock wise viewed from the shaft end.

Graphic symbol

VANE PUMPS

68

VPVR

Model Number DesignationVPVR -S F - 20 A - 10

SeriesNumber

Number ofStage

Type ofMounting

Delivery atUnloading

1/min.at 1500 rpm

Max. Oper.Pressurekgf/cm2

DesignNumber

S:SingleStage

F: FlangeType

20 : 17

30 : 25

40 : 35

10

20

A : 20

B : 35

C : 55

D : 70

VPVR-SF-20h-10

VPVR-SF- *-203040

DIMENSION INMILLIMETRES

PT 1/4”

INLETPT 3/4” 4-φ11

79.0

142

SQ. 90

140

101

OUTLETPT 1/2”

ADJUSTMENTFLOW

113

5936.5

37

4

PRESSUREADJUSTMENT

DR

28

34.76

-0.020

19.05-0.210

φ95.

02-0

.04

0

113

21.4

Variable Displacement Vane Pumps

69Variable Displacement Vane Pumps

Operating CharacteristiesTypical delivery and input performance at 1500 rpm are shown in the graph. For any other delivery and pressuresetting, performance curve will be nearly in parallel with shown. The in put can be calculated with the followingformula;

Input (kW) =

Where P = Presure kgf/cm2

Q = Outputt Flow l/min.

Performance Characteristcs

VPVR-SF-20*-10 VPVR-SF-30*-20

VPVR-SF-40*-20

PQ612

VANE PUMPS