REPRESENTATIVE COMPANIES
TH-WITT

Metalex has strategic tie-up with leading international and Indian companies to provide best of the products for refrigeration industry.

TH. WITT GmbH (Germany):

TH. WITT refrigerant pumps are the world leader in re-circulation of different refrigerants including Ammonia. These pumps are available in two versions. One Hermetically Sealed Pumps HRP Series and Open Type Pumps GP Series. WITT refrigerant pumps are specially designed to deliver primary refrigerant liquids at their boiling points. They are characterized by their proven ability to pump liquid / vapor mixtures. With the available models in both types of pumps, large range of applications for industrial refrigeration re circulation systems can be covered.

  • Performance Characteristic Table for HRP Series Pumps
  • Performance Characteristic Table For GP Series Pumps

Robust, open standard pumps. Due tos the usage of flanged, normed motors, service is very convenient, which is of particular interest in remote countries.


Wherever the hermetic execution of a refrigeration system is required, e.g. due to local regulations, Hermetic refrigerant pumps of the HRP series are your best choice.


High pressure float regulators offer a simple, mechanical solution to expand refrigerant from the high to the low pressure side.


The WITT NGX maximum level switch is a TÜV design approved safety component to protect refrigerant compressors against liquid carry-over.


Represents the consequent improvement of the well established WITT BDP for automatic oil return in refrigerant systems.


GP – SERIES

1450 1 / min. (RPM)

Liquid Head H in m

Pressure Difference △p [bar]

Flow V in m3 / h

NH3

R 22

GP 41

GP 42

GP 51A

GP 51

GP 52

Evaporating Temperature t0

+40° C

+40° C

+40° C

+40° C

         
2 0.11 0.14 0.22 0.28 3.4 3.6 10.2 16.8 16.8
4 0.23 0.27 0.44 0.55 3.2 3.4 10.0 16.5 16.5
6 0.34 0.41 0.67 0.83 2.9 3.3 9.7 16.3 16.3
8 0.45 0.54 0.89 1.13 2.7 3.1 9.4 16.1 16.2
10 0.57 0.68 1.11 1.38 2.6 3.0 9.0 15.7 16.1
15 0.85 1.02 1.67 2.08 2.2 2.6 8.3 14.2 16.0
20 1.14 1.35 2.22 2.77 1.8 2.4 7.4 12.3 15.8
25 1.42 1.69 2.78 3.46 1.4 2.1 6.3 9.8 15.1
30 1.70 2.03 3.33 4.15 1.9 5.5 7.0 14.2
35 1.99 2.37 3.89 4.84 1.6 4.5 3.6 13.5
40 2.27 2.71 4.45 5.54 1.3 0 12.5
45 2.56 3.05 5.00 6.23 1.1 11.1
50 2.84 3.38 5.56 6.92 0.8 10.4
55 3.12 3.72 6.11 7.61 9.3
60 3.41 4.06 6.67 8.31 8.0
65 3.69 4.40 7.22 9.00 6.5
70 3.98 4.74 7.78 9.69 5.0

1m = 3.281ft
1bar = 14.504PSI
1m 3 /h = 4.403gal/min

GP – SERIES DOWNLOAD

HRP SERIES

50 H1, 3 x 400v

Delivery head

Pressure Difference △p [bar]

Volume flow V [m3 / h]

R717

R22, R134a

R507

CO2

HRP
3232

HRP
5040

HRP
5050

HRP
8050

HRP
10080

at evaporation temperature t0

H [m]

0° C

-40° C

0° C

-40° C

0° C

-40° C

0° C

-40° C

2 0.13 0.14 0.25 0.28 0.23 0.25 0.18 0.22 5.6 13.2 15 30.0 55.0
4 0.25 0.27 0.50 0.55 0.45 0.51 0.36 0.44 5.0 13.0 14.6 29.9 53.7
6 0.38 0.41 0.75 0.83 0.68 0.76 0.55 0.66 4.7 12.6 14.4 29.4 53.0
8 0.50 0.54 1.00 1.10 0.91 1.02 0.73 0.88 4.4 12.0 14.2 28.7 52.5
10 0.63 0.68 1.26 1.38 1.14 1.27 0.91 1.09 4.2 10.5 13.9 28.0 52.1
15 0.94 1.02 1.88 2.07 1.70 1.91 1.37 1.64 3.6 9.0 13.2 26.1 50.3
20 1.25 1.35 2.51 2.76 2.27 2.54 1.82 2.19 3.0 8.0 12.3 24.2 46.8
25 1.57 1.69 3.14 3.45 2.84 3.18 2.28 2.74 2.3 5.2 11.5 22.4 42.6
30 1.88 2.03 3.77 4.14 3.41 3.82 2.73 3.28 1.5 10.4 20.1 37.9
35 2.19 2.37 4.40 4.83 3.97 4.45 3.19 3.83 9.1 18.2 32.7
40 2.51 2.71 5.02 5.52 4.54 5.09 3.64 4.38 7.5 15.0 26.6
45 2.82 3.05 5.65 6.21 5.11 5.72 4.10 4.93 5.2 12.5 20.4
50 3.13 3.39 6.28 6.90 5.68 6.36 4.55 5.47 2.0 9.1 10.9
55 3.45 3.72 6.91 7.59 6.24 7.00 5.01 6.02
60 3.76 4.06 7.53 8.28 6.81 7.63 5.46 6.57
65 4.07 4.40 8.16 8.97 7.38 8.27 5.92 7.11
70 4.39 4.74 8.79 9.66 7.95 8.90 6.37 7.66
75 4.70 5.08 9.42 10.35 8.52 9.54 6.83 8.21

HRP SERIES DOWNLOAD

HR HS DOWNLOAD

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