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Pumps tanks mixers and sanitary fittings built in Wenzhou since 2002

Centrifugal Pumps

SKG Vertical Centrifugal Pump

An inline pump that drops straight into the pipe run, with suction and discharge on the same centreline and the motor above the casing.

SKG vertical inline centrifugal pump with motor mounted above the casing

Overview

What This Pump Does

The SKG is a single stage, single suction vertical centrifugal pump, also called an inline pump. Because it sits in the pipework rather than on the floor, it removes bends and the floor area a horizontal set would occupy.

The series covers clear water duty to 80 degrees Celsius, with hot water, high temperature, corrosive and oil variants developed on the same body. Flow runs from 1.5 to 1500 m3/h with head to 150 m and drives to 160 kW.

Working PrincipleCentrifugal
Main applicationsWater
DriverElectric motor
Power Specs380/415 V 220v,3phase;50hz/60hz
Max. permissible fluid temperature80°C
Type of connectionFlange

Key Benefits

Why An Inline Pump Suits A Tight Plant Room

Goes Into The Pipe Run

Suction and discharge share a centreline, so the pump replaces a section of pipe instead of taking floor area.

Fewer Bends

Straight through flow removes the elbows a horizontal set needs, which reduces pipe losses and installation work.

Power Saving And Low Noise

The series is built around a tested hydraulic model, and the published characteristics are power saving with low noise and steady operation.

One Body Many Duties

Hot water, high temperature, chemical and oil variants use the same installation envelope.

Application Scenarios

Where It Is Installed

Plant Room Circulation

Heating and chilled water circuits where the pipework is already routed at high level.

Pressure Boosting

Supply boosting inside buildings where floor area is committed to other plant.

Process Water Transfer

Clear water and liquids with similar properties inside a works.

Who It Is For

  • Building services engineers fitting pumps into existing pipework
  • Plant rooms where floor space is already allocated
  • Contractors replacing an inline pump like for like
  • Projects that want one pump body across several duties

Problems It Solves

There is no floor space left

An inline pump is carried by the pipework and takes no separate floor footprint.

Extra bends add resistance

Straight through flow means fewer fittings and less head loss to design around.

Mixed duties in one building

Water, hot water, high temperature, chemical and oil variants share the same envelope, which simplifies layout and spares.

Technical Features

How It Is Built

  • Single stage single suction vertical inline hydraulics
  • Motor mounted above the pump casing
  • Mechanical seal with hard alloy faces or packing gland
  • Free passage 0.2 mm, maximum specific gravity 1.1
  • Flanged connections to 500 mm caliber
  • Cast iron, stainless steel or bronze wetted parts

Specifications

Technical Data

Published SKG data. Check headroom above the pump as well as the duty point, because the rotating element lifts upward for service.

Working PrincipleCentrifugal
Main applicationsWater
DriverElectric motor
Power Specs380/415 V 220v,3phase;50hz/60hz
Max. permissible fluid temperature80°C
Type of connectionFlange
Installation positionVertical
Casing/Impeller materialCast iron, Stainless steel/Cast iron, Stainless steel, Bronze
Shaft seal typeMechanical seal; Packing gland
Free passage0.2 mm
Maximum gravity1.1
Maximum drive rating160kW(215hp)
Maximum caliber20 inch(500mm)
Maximum head150m
Flow rate range1.5-1500 m3/h ( 25-25000 l /m)

Materials And Process

What Goes Into Every Unit

Materials

  • Cast iron casing and impeller
  • Stainless steel option
  • Bronze impeller option
  • Hard alloy seal faces

Manufacturing And Assembly

  • Casing cast and machined in house
  • Impeller dynamically and statically balanced
  • Assembly and hydraulic test
  • Painting, packing and documentation

Quality Control

  • Impeller balance verified
  • Hydraulic test on the works bay
  • Factory acceptance test record with the order

Customization Options

  • Cast iron, stainless steel or bronze wetted parts
  • Mechanical seal or packing gland
  • Motor rating and supply voltage and frequency
  • Flange drilling standard

Compared With Other Options

SKW horizontal close coupled pumpThe SKW is easier to reach from all sides; the SKG saves floor area but needs headroom above it.
SKGH vertical chemical pumpSame body with stainless wetted parts and a 120 degree rating for corrosive liquids.

Use Guide

Installing A Vertical Inline Pump

Support The Pipework

The pipe carries the pump, so supports either side must take the weight without transferring strain to the flanges.

Leave Headroom

Allow space above the motor to lift the rotating element for seal and bearing work.

Vent Before Start

Fill and vent, then confirm rotation direction before running at duty.

Record The Duty

Log flow, pressure and current at commissioning as the baseline for later checks.

Answers

SKG Vertical Centrifugal Pump FAQ

What is the flow and head range?

1.5 to 1500 m3/h with a maximum head of 150 m, drives to 160 kW and caliber to 500 mm.

How hot can the liquid be?

80 degrees Celsius on the standard SKG. The SKGR is rated to 120 degrees and the SKGS to 240 degrees.

Does an inline pump need a baseplate?

No. It is supported by the pipework, which must be properly braced either side of the pump.

How is the seal replaced?

The rotating element lifts out from above, which is why headroom above the motor matters at installation.

Can it handle liquid with solids?

No. Free passage is 0.2 mm, so it is a clear liquid pump.

Related Equipment

Related Equipment From The Same Line

Other vertical inline variants and the horizontal equivalent.

SKGH vertical chemical pump with stainless casing and inline flanges

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SKGH Vertical Chemical Pump

Vertical inline pump with stainless wetted parts for corrosive liquids.

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SKGR vertical hot water pump with inline flanges and motor above

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SKGR Hot Water Pump

Vertical inline pump for hot water circulation to 120 degrees.

View specifications →

Need SKG Vertical Centrifugal Pump Sized For Your Duty Point

Send the duty point and the available headroom, and we will confirm the model and the installation envelope.