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Accessories

Accessories Sprinkler pumps Mechanical accessories Subject to change 09/2008 WILO SE Wilo Catalogue B5 - 50 Hz - Sprinkler pumps with VdS approval

Pressure shroud

Submersible-motor pumps can be installed in a pressure shroud for the purpose of pressure boosting. This makes it possible to install the unit directly in the pipe itself (similar to dry well installation).

Pressure shroud pumps can be installed vertically and, up to a certain number of stages, also horizontally. The connections for the pipeline system can be attached axially or laterally. The connections are also available as flange or threaded connections. The construction of the pressure shrouds has been standardised up to a size of 8". Starting with a size of 10", the con-struction can be customised. The pressure shrouds can be equipped with a pedestal on re-quest. You can choose between galvanized steel and stainless steel as the material.

Cooling jacket pipes

Submersible-motor pumps can be equipped with a cooling jacket pipe to achieve the flow ve-locity necessary for motor cooling. This is recommended especially if:

• Sludge deposits could form on the motor (e.g. for application in a pump sump immediately above ground)

• Improved motor cooling is required because of unusual operating conditions

• No unperforated well casing is present in the well, and the pump must be installed in the filtra-tion pipe system

• Sand appears in the well

• Installation takes place in rock springs without pipe networks

Cooling jacket pipes are suitable for vertical and horizontal installation. You can choose be-tween galvanized steel and stainless steel as materials (depending on type). For information on availability and order number, please see the catalogue pages for the respective type

Anti-vortex plate

The anti-vortex plate is mounted in the intake area of the submersible-motor pump, thus pre-venting air turbulence during operation. The fluid is fed to the unit in defined fashion through the use of an anti-vortex plate. This makes it possible to minimise the required minimum water submersion and better utilise the tank.

The anti-vortex plate is manufactured specifically for each type of unit in terms of size and construction. You can choose between galvanized steel and stainless steel as the material.

Availability, materials used and order number can be found on the catalogue pages for the re-spective type.

Accessories

Sprinkler pumps

Mechanical accessories

Accessories Sprinkler pumps Mechanical accessories Subject to change 09/2008 WILO SE Wilo Catalogue B5 - 50 Hz - Sprinkler pumps with VdS approval

Non-return valves RV, RVF

Non-return valves prevent the backward flow of the volume flow and thus the emptying of the ascending pipe, the reverse running of the switched-off submersible-motor pump and any potential blocking of the pump by the trickling backward of solid matter. In addition, any water hammering that may occur as the result of reverse oscillations in the volume flow after the submersible-motor pump is switched off is reduced.

The non-return valve is installed on the pressure port of the submersible-motor pump and, in the case of larger systems, also after the elbow in the ascending pipe. Non-return valves are available in the following versions:

• Normal version with shutter (RV)

• Spring-mounted version (RVF)

• Non-return nozzle valve

We recommend the use of spring-mounted non-return valves (RVF) or non-return nozzle valves where there is a danger of water hammering.

For RV and RVF versions, the housings are available in cast iron or (on request) in zinc-free bronze. Flange connection in accordance with DIN 2501; Threaded connection per Whitworth pipe thread DIN 2999 or B.S.2779

Non-return nozzle valves are available in nominal diameters DN80 to DN300 and in pressure stages PN10 to PN40. The materials utilised include rust-free steel, bronze and elastomer parts (KTW-approved).

Bearing brackets for horizontal installation

Bearing brackets are used for reinforcement for horizontal installation of submersible-motor pumps. These are to be manufactured specifically for each type of unit in terms of size and construction. You can choose between galvanized steel and stainless steel as the material.

Availability, materials used and order number can be found on the catalogue pages for the re-spective type.

Watersupply Glandless pumps and accessories, package heat exchanger assembly

Heating, air-conditioning, cooling Glanded pumps

Pumps with in-line design and accessories

Heating, air-conditioning, cooling, water supply Monobloc and norm pumps, axial split case pumps Pumps and accessories

Water supply

Domestic water supply, rainwater utilisation Pumps, systems and accessories

Water supply

Borehole pumps, 3" to 24"

Pumps and systems for building services, domestic, municipal and industrial water supply

Water supply

High-pressure multistage centrifugal pumps Pumps and accessories

Water supply

Pressure boosting systems

Single-pump and multi-pump systems in dry well installations

Water supply

Sprinkler pumps with VdS approval Borehole pumps and accessories

Drainage and sewage Drainage pumps

Submersible pumps, self-priming pumps and accessories

Drainage and sewage

Sewage pumps, DN 32 to DN 600

Submersible pumps and accessories for building services, municipal and industrial applications

Drainage and sewage

Wastewater and sewage lifting units, pumps stations Pump systems and accessories

Drainage and sewage Submersible mixers

Mixers, re-circulation pumps, jet cleaners, grit collector pumps and accessories for municipal application in water treatment systems

Catalogue A2

WILO SE

Nortkirchenstraße 100 44263 Dortmund Germany T +49 231 4102-0 F +49 231 4102-7363 [email protected] www.wilo.com

WILO EMU GmbH Heimgartenstraße 1 95030 Hof Germany T +49 9281 974-0 F +49 9281 96528 [email protected] www.wilo.com

Algeria

Bad Ezzouar, Dar El Beida T +213 21 247979 [email protected] Armenia

375001 Yerevan T +374 10 544336 [email protected]

Bosnia and Herzegovina 71000 Sarajevo T +387 33 714510 [email protected] Georgia

0179 Tbilisi T +995 32 306375 [email protected]

Macedonia 1000 Skopje T +389 2 3122058 [email protected] Mexico

07300 Mexico T +52 55 55863209 [email protected] T +976 11 314843 [email protected]

Tajikistan 734025 Dushanbe T +992 37 2232908 [email protected] Turkmenistan 744000 Ashgabad T +993 12 345838 [email protected]

Uzbekistan 100015 Tashkent T +998 71 1206774 [email protected]

March 2009