Split Casing Pump

Water supply systems

Power plants and industry

Pressure boosting

Main Application

Irrigation and drainage pumping stations

Fire-fighting systems

Air conditioning and cooling systems

Water transport

Desalination pivants

Offshore platforms and shipbuilding

Operating Data

Fluids Handled

WLN/WLNV pumps are very versatile and can be used for the following fluids:

River water, lake and groundwater
Brackish water, sea water
Storm and drainage water
Service water
Fire-fighting water
Cooling and condensate water
Drinking water

Pump Shaft

Completely dry shaft for design with rolling element bearings
Shaft protecting sleeves in the seal area

Bearings

For horizontal installations:

Rolling elements bearings

For vertical installations:

Product-lubricated plain bearing at the bottom /
rolling elements bearing on top

Shaft seal

Gland packing
Mechanical seal

Depending on the material and size
Standard design up to max. 80 ° C [176 ° F]

NOMENCLATURE
EXAMPLE: 10 WLNV 22 A CB PO

Impeller type

Double – entry radial
impeller wear rings

Design details

Volute casing pump
Horizontal / vertical installation
Single – stage
Nominal diameter of the discharge. nozzles 80 mm to 350 mm

Pump casing

Axially split volute casing
Volute cassing with integrally cast pump feet
Replaceable wear rings
Mating dimensions to EN or ASME

Types of Installation

WLN

Options of installation parts:
• Base frame for pump and motor, including foundation bolts
• Special base frame for pump and motor, including foundation bolts

Coupling options:
• Torsion ally flexible 3-piece jaw coupling
• Torsion-resistant flexible disc coupling with spacer
Coupling guard options:
• Light-duty design, no tread-proof
• Heavy-duty, tread proof design (on request)

Deliver/transport:
• Up to motor size ≤ IEC 280M or NEMA 444/5T or a max. total weight ≤ 1500 kg [3307 lb]
pump and motor supplied on the base frame
• From motor size>IEC280MorNEMA444 /5Toramax. total weight > 1500 kg [3307 lb] pump,
motor and base frame are supplied separate

WLNV

Options of installation parts:

Pump foundation (foot) including foundation
blocks
Pump foundation (foot) including foundation
blocks, motor support frame,
foundation rails and foundation bolts (on
request)

Coupling options:

Cardan shaft with/without intermediate
bearing(on request)
Coupling with spacer (on request)

Coupling guard options:

Light-duty design, not tread-proof
Delivery /transport:
Pump on corresponding pump foot.
Motor and motor support frame are
supplied

LNV: motor mounted on the drive lantern

Options of installation parts:

Pump foundation (foot) including foundation
blocks and drive lantern
Pump foundation including foundation
blocks and special drive lantern

Coupling options:

Torsion ally flexible 3-piece jaw coupling
Torsion-resistant flexible disc coupling
with spacer

Coupling guard options:

Lightweight, not tread-proof design
Delivery /transport:
Pump supplied on pump foundation
with drive lantern mounted. The motor is supplied separately.

Product Benefits

Low maintenance costs:
• Fast and easy to install
• Thanks to self-centering components (upper casing part, rotor, casing cover)
• Materials resistant to corrosion and abrasion
• Smooth operation with low vibration levels
• Replacement and spare parts fit several pump sizes

Excellent efficiencies and NPSH values:
• Computer-optimized impeller
• Large impeller inlet for optimum suction behaviour
• Cost-effective replacing of casing and impeller
• Wear rings
• Vortex-free intake elbow with low energy losses
• Impeller trim med to match the specified duty point
• Several hydraulic systems per pump size

Acceptance inspections/tests:
• Functional and acceptance tests for information on acceptance tests and inspections
refer to the QCPs (see WPIL Standard)

Long service life: