Vertical Pumps

Overview

CTV is a single stage vertical centrifugal pump that is simple but very reliable in duty. The pump is specialized for transfer and circulation of various liquids from containers, sumps and tanks.

How they work

CTV is installed vertically with the motor above the liquid surface. In this way the pump does not need any mechanical seal that usually is a source for leakage problems. Further on the pump is designed to be dry running safe.
The simple design without bearings or mechanical seals grants for a pump that is usually maintenance free. CTV is also insensitive of solids, up to 6 mm are allowed (depending of pump size).
In many installations the CTV pump replaces a self priming pump. The pump head of the CTV is submersed in the liquid. The pump operates more reliable compared with a self priming pump. The submersion depth is 419-425 mm (depending on model) but may also be equipped with a suction extension.

Materials

CTV is manufactured from PP (polypropylene), PVDF or stainless steel AISI 316L.

PP (polypropylene) is suitable for most type of chemicals at temperatures up to 70°C. Ideal for pickling baths and acid degrease solutions etc.

PVDF

PVDF (polyvinylidene fluoride) has superior chemical and mechanical features. Ideal with hot acids up to 100°C, for example hot hydrofluoric acid.

Stainless steel pumps

The stainless steel version is ideal at higher temperatures, up to 100°C and in special applications like hot sodium hydroxide.

All wetted metal components are made from corrosion resistant stainless steel AISI 316L.

For special applications like handling of chromium nickel, electro polished models are available.

Pumps in stainless steel (click to enlarge)

Typical applications

Industry	Example of application
Surface treatment	Transfer and return pumping in galvanizing, hot zinc, pickling and oxidation processes
Water treatment	Transfer and return pumping
Heat exchangers	Return pumping in heat exchangers
Waste disposal	Emptying sumps

Material of components Performance overview – PP or PVDF pumps

Component	Material/Info
Pump casing and impeller	PP, PVDF or stainless steel AISI 316L
Casing O-ring	EPDM, FKM or FEP

Performancecurveoverview-CTV-Pumps.en

Performance overview – stainless steel pumps

Technical data

PP & PVDF Vertical pumps

Dimension	CTV 25	CTV 32
A	285	285
B	200	200
E	85	85
F	56	56
G	95	95
H	1”	1 1/4”
J	25	25
K	419	419
L	123	126
M	60	60
N	1”	1 1/4”

Motor power	D	I
0.55 kW	196	213
0.75-2.2 kW	214	267

General characteristics	25-wrz	25-paź	25-lis	25-11.5	32-8.5	paź-32	32-12.5
Max capacity (m3/h)	10.2	13.2	15.6	18.0	19.8	24.0	27.0
Max head (m)	10	14	16	19	10	17	23
Motor power (kW)	0.55	0.75	1.1	1.5	1.1	1.5	2.2
Outlet dimension (male BSP)	1”	1”	1”	1”	1 1/4”	1 1/4”	1 1/4”
Motor data	3-phase, 2-pole (~2900 rpm), 380-420 VAC, 50 Hz, IP 55
Max temperature	Pump in PP: 70°C, pump in PVDF: 100°C

Materials
Pump casing and impeller	PP or PVDF
Casing o-ring	EPDM, FKM or FEP

Plastic Vertical pumps dimensional drawing

Stainless steel Vertical pumps

Dimension	CTV 20	CTV 25		CTV 40
A	267	267		267
B	207	207		207
E	102.6	102.6		102.6
F	36	50		66
G	93.5	93.5		93.5
H	1”	1 1/2”		1 1/2”
J	8	8		8
K	420.5	420.5		425
L	113.5	127		139
M	60	60		60
N	3/4”	1”		1 1/2”
Motor power	D		I
0.55 kW	214		211
0.75-2.2 kW	253		265

General characteristics	20-wrz	25-9.8	25-9.8	40-12.5	40-12.5	40-13.5
Max capacity (m3/h)	12.0	17.0	17.0	19	34	20
Max head (m)	10	11	11	22	22	31
Motor power (kW)	0.55	0.75	1.1	1.5	2.2	2.2
Outlet dimension (male BSP)	3/4”	1”	1”	1 1/2”	1 1/2”	1 1/2”
Motor data	3-phase, 2-pole (~2900 rpm), 380-420 VAC, 50 Hz, IP 55
Max temperature	100°C

Materials
Pumpcasing and impeller	Stainless steel AISI 316L
Casing o-ring	EPDM, FKM or FEP

Metal Vertical pumps dimensional drawing

Certificates

EN 10204 material traceability
The EN 10204 norm gives you a checklist and traceability of materials used in the equipment. 2.1 is a general statement of compliance with material specifications, while 3.1 provides specific track records all the way to the steel mill batch (normally only on metals in contact with the product).

CE conformance
A product classified as machinery that carries the CE mark fulfill the essential health and safety requirements of the EC Machinery Directive 2006/42/EEC.