Chemistry Pump VPC

 

Multi purpose gear pump with wide application range. Specialized for dosing applications.
Even for corrosive and abrasive fluids.

 

 

Typical range of applications

viscosity      

 0,3 ... 2.000.000 mPas

 (standard design)

temperature  

-50 ... +320 °C

 

system pressure
(absolute pressure at pump inlet port)

vacuum ... 100 bar

 

differential pressure     

up to 200 bar

 

 

 

Specific output [cm³/rev.]

1,28 - 2,78 - 4,7 - 10,2 - 25,6 - 46,3 - 92,6 - 176

 

 

 

Output diagram

(remarks for use see below)

Example:

To assess pump size the following specifications are necessary:

-   dyn. viscosity (e.g.: 3.000 mPas)

-   discharge (e.g.: 30 l/min)

The top diagram determines the maximum permissible speed corresponding to the respective viscosity.
One follows the appropriate line into the lower diagram part, until it cuts itself with the desired discharge capacity. The next intersection point on the left of this with the pump characteristic indicates pump size. The associated number of revolutions is be read on the horizontal axis.

As result one receives the following values:

-   max. speed.: 2,3 m/s

-   pump size: VPC-46,3

-   revolutions: approx. 650 rpm

Remark: For an optimized design of the gear pump further operational data as well as material combinations are to be considered. Therefore please contact variopumps.

 

 

Materials (details) and seals (details)

gears/shafts

-   stainless steel (hardened)
-   duplex steel
-   Hastelloy C4
-   hard material coatings

housing

-   stainless steel
-   Hastelloy C4

bearings

-   carbon
-   Bronze
-   Silicon carbide
-   Zirconium oxide
-   Nickel-Silver

Customer and/or user-specific special materials and constructions can be realized at short notice!

internal mechanical seal 

external mechanical seal

double mechanical seal

gap seal

magnetic coupling

 

 

Dimensions (details)

 

direction of flow: from right to the left, seen from motor (standard)

pump size

A

B

C

øD

E

F

øG

H

I

K

L

VPC-1,28

34,5

51,5

110

20

11

74

160

185

205

145

96

VPC-2,78

39,5

53,5

110

20

11

74

160

185

205

145

96

VPC-4,7

44

58

110

20

11

74

160

185

205

145

96

VPC-10,2

52

66

110

25

14

88

160

185

205

145

116

VPC-25,6

63

78

120

40

18

100

200

185

205

145

136

VPC-46,3

76,5

91,5

-

50

22,5

116

-

185

205

145

161

VPC-92,6

91

113

-

50

28

142

-

260

355

210

198

VPC-176

112

132

-

65

35

170

-

260

355

210

240

VPC-371

138

160

-

80

45

210

-

-

-

-

300

*  These dimensions depend on the drive type and size.
All dimensions are only for design purpose. Right to modify reserved.

 

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