Centrifugal Pumps

SKS Horizontal Water Pump

Name: SKS Horizontal Water Pump
Brand: SEKO Pump Solution

The traditional arrangement: pump and motor joined by a coupling, so the seal and bearings can be reached without disturbing the motor.

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SKS horizontal water pump with coupling guard and motor on a baseplate

Overview

What This Pump Does

The SKS is a single stage, single end suction water pump of international standard build, with a coupling between the motor and the pump. Where the SKW saves space, the SKS saves service time, because the rotating element can be worked on with the motor left in place.

Duty covers water supply and drainage, pressure boosting in high buildings, irrigation, fire fighting, long distance transfer and heating and cooling circulation. Maximum fluid temperature is listed at 80 degrees Celsius, with a 150 degree version in the range.

Working Principle	Centrifugal
Main applications	Water
Driver	Electric motor
Power Specs	380/415 V 220v,3phase;50hz/60hz
Max. permissible fluid temperature	80°C/150°C
Type of connection	Flange

Key Benefits

Why Plants Still Specify A Coupled Set

Seal Work Without Moving The Motor

The coupling gives access to the seal and bearings, which shortens a planned service and avoids re-terminating the motor.

Familiar Maintenance

Most maintenance teams already know how to align and service a coupled set, so nothing new has to be learned.

Motor Independent Of Pump

A failed motor can be changed without replacing the pump end, and vice versa.

Standard Hydraulics

Single stage single suction hydraulics of international standard design, with a mechanical seal in hard alloy or a packing gland.

Application Scenarios

Where It Is Installed

Municipal Supply And Drainage

Water supply and drainage duty for industry and city networks.

High Building Boosting

Pressure increasing supply where the set runs long hours and will be serviced in place.

Heating And Cooling Circulation

Cold and warm water circulation and matching equipment on plant circuits.

Who It Is For

Plants with an in house maintenance team that services pumps
Projects where a spare motor is held separately from the pump
Installations with floor space for a coupled set and baseplate
Operators replacing an existing coupled pump like for like

Problems It Solves

Servicing the seal means dismantling everything

With the coupling in place the rotating element is accessible, so a seal change does not become a motor job.

Spares availability over a long life

Standard construction means impellers, seals and bearings can be ordered against the model number years later.

Replacing an older pump

The traditional footprint often drops into the space an existing coupled pump occupied.

Technical Features

How It Is Built

Single stage single end suction hydraulics to international standard
Coupling between motor and pump for in place seal service
Mechanical seal with hard alloy faces, or packing gland
Compact horizontal structure with low noise and high concentricity
Flanged connections, horizontal installation
Cast iron, stainless steel or bronze casing and impeller

Specifications

Technical Data

Data sheet figures for the SKS. The high temperature build extends the fluid limit, which is why two figures appear against temperature.

Working Principle	Centrifugal
Main applications	Water
Driver	Electric motor
Power Specs	380/415 V 220v,3phase;50hz/60hz
Max. permissible fluid temperature	80°C/150°C
Type of connection	Flange
Installation position	Horizontal
Casing/Impeller material	Cast iron, Stainless steel/Cast iron, Stainless steel, Bronze
Shaft seal type	Mechanical seal; Packing gland
Free passage	0.0 mm
Maximum gravity	1.1
Maximum drive rating	110kW(148hp)
Maximum caliber	6 inch(150mm)
Maximum head	125m
Flow rate range	6.3-200 m 3 /h ( 105-3333 l /m)

Materials And Process

What Goes Into Every Unit

Materials

Cast iron casing and impeller
Stainless steel option for aggressive water
Bronze impeller option
Hard alloy seal faces

Manufacturing And Assembly

Cast casing machined in house
Impeller balanced dynamically and statically
Coupling aligned and set run on the test bay
Painting, packing and documentation

Quality Control

Alignment checked after assembly
Hydraulic performance verified on the test bay
Factory acceptance test record issued with the order

Customization Options

Mechanical seal or packing gland
Cast iron, stainless steel or bronze wetted parts
Motor rating and supply to site voltage and frequency
Baseplate and coupling guard arrangement

Compared With Other Options

SKW close coupled pump	The SKW takes less floor area and needs no alignment. The SKS is easier to service without disturbing the motor.
SKG vertical inline pump	The SKG saves floor area by sitting in the pipe run, but needs headroom above it for lifting.

Use Guide

Commissioning And Servicing The SKS

Align The Coupling

Check alignment after the baseplate is grouted and again after the pipework is connected, because pipe strain moves it.

Prime And Vent

Fill the casing and vent before starting. Confirm rotation direction before the first full run.

Set The Gland

On a packed pump, adjust to a slow drip. A dry gland burns the packing and scores the sleeve.

Record The Duty

Note flow, pressure and current at commissioning so later changes can be measured against something.

Answers

SKS Horizontal Water Pump FAQ

How does this differ from the SKW?

The SKS keeps a coupling between the motor and pump. That costs floor space but lets the seal and bearings be serviced without moving the motor.

What is the flow range?

6.3 to 200 m3/h on the listed data sheet, with a maximum head of 125 m, a maximum drive rating of 110 kW and a maximum caliber of 150 mm.

What temperature can it handle?

The data sheet gives a maximum permissible fluid temperature of 80 degrees Celsius, with a 150 degree build in the range. State the working temperature with the enquiry.

Is the baseplate included?

The pump is quoted as a set with motor, coupling and baseplate unless you ask for a bare shaft pump.

Can I fit a different motor later?

Yes, which is one reason coupled sets are chosen. Keep the coupling and alignment data with the maintenance record.

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