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

OPEN REFRIGERANT PUMPS

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

HERMETIC REFRIGERANT PUMPS

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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

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

NGX MAXIMUM LEVEL SWITCH

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

BDP2

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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				GP 41	GP 42	GP 51A	GP 51	GP 52
	+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

GP Brochure (De En Fr Es)

GP Pump Curve

GP Manual (De En)

List Of Spare Parts GP (En)

Drawings GP 3d

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								HRP 3232	HRP 5040	HRP 5050	HRP 8050	HRP 10080
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

HRP Quick Start Instructions (En)

HRP Brochure (De En Fr Es)

HRP Pump Curve

HRP Checklist (En)

Int69v Manual (En)

HR HS DOWNLOAD

HR HS Short Instructions (En)

HR HS Manual (De En)

HR HS Brochure (De En Fr Es)

HR HS Flyer (En)

HR HS Selection Charts US Units

HR HS Selection Charts US Units

GP – SERIES

GP – SERIES DOWNLOAD

HRP SERIES

HRP SERIES DOWNLOAD

HR HS DOWNLOAD

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