Centrifugal Pumps
SKGS High Temperature Centrifugal Pump
Vertical inline pump rated to 240 degrees for pressurised circuits.
View specifications →Centrifugal Pumps
SKGR Hot Water Pump
Inline mounting for hot water circuits, rated to 120 degrees, so a heating loop does not have to give up floor area.
Overview
What This Pump Does
The SKGR is the hot water build of the vertical inline range. It handles pressurised circulation of high temperature water while sitting directly in the pipe run.
Flow runs from 1.5 to 1500 m3/h with head to 150 m, drives to 160 kW and a maximum permissible fluid temperature of 120 degrees Celsius.
| Working Principle | Centrifugal |
|---|---|
| Main applications | Water |
| Driver | Electric motor |
| Power Specs | 380/415 V 220v , 3phase ; 50hz / 60hz |
| Max. permissible fluid temperature | 120°C |
| Type of connection | Flange |
Key Benefits
Hot Circulation In A Small Footprint
120 Degree Rating Inline
Hot water duty without the floor space a horizontal set needs, which suits boiler houses and energy centres.
Fewer Fittings
Straight through flow removes elbows, which matters more on a hot circuit where every fitting is an expansion point.
Seal For Hot Duty
Hard alloy mechanical seal faces or a packing gland, specified with temperature and system pressure in mind.
Material To Suit The Water
Cast iron, stainless steel or bronze wetted parts depending on treatment chemistry.
Application Scenarios
Where It Is Installed
Building And District Heating
Circulating hot water in closed pressurised circuits inside buildings and energy centres.
Process Heating Loops
Feeding jacketed vessels and exchangers with hot water at controlled flow.
Heat Recovery
Moving recovered hot water between source and consumer.
Who It Is For
- Energy centre and boiler house contractors
- Process plants with hot water circuits
- Building services engineers working in tight plant rooms
- Maintenance teams replacing a failed hot duty pump
Problems It Solves
Standard pumps fail above 80 degrees
A 120 degree rating removes the cause of repeated seal failures on hot circuits.
The plant room is full
Inline mounting means the pump takes pipe length rather than floor area.
Hot circuits punish fittings
Fewer bends and a straight flow path reduce the number of joints on a circuit that expands and contracts daily.
Technical Features
How It Is Built
- Maximum permissible fluid temperature 120 degrees Celsius
- Vertical inline installation
- 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
- Drives to 160 kW at 380 to 415 V three phase
Specifications
Technical Data
Published SKGR data. On closed circuits, send the system pressure as well as the temperature so the seal arrangement is right.
| Working Principle | Centrifugal |
|---|---|
| Main applications | Water |
| Driver | Electric motor |
| Power Specs | 380/415 V 220v , 3phase ; 50hz / 60hz |
| Max. permissible fluid temperature | 120°C |
| Type of connection | Flange |
| Installation position | Vertical |
| Casing/Impeller material | Cast iron, Stainless steel/Cast iron, Stainless steel, Bronze |
| Shaft seal type | Mechanical seal; Packing gland |
| Free passage | 0.2 mm |
| Maximum gravity | 1.1 |
| Maximum drive rating | 160kW ( 215hp ) |
| Maximum caliber | 20 inch( 500mm ) |
| Maximum head | 150m |
| Flow rate range | 1.5-1500 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
- Casting and machining at the works
- Balanced impeller
- Hydraulic test before painting
- Documentation and packing
Quality Control
- Seal arrangement checked against the stated duty
- Hydraulic test recorded
- Factory acceptance test record issued
Customization Options
- Material selection for treated water
- Seal type and faces
- Motor rating and supply
- Flange standard
Compared With Other Options
| SKGS vertical high temperature pump | The SKGS carries a 240 degree rating for circuits that run above the SKGR limit. |
|---|---|
| SKWR horizontal hot water pump | Same hot water duty on the horizontal platform, with easier all round access. |
Use Guide
Commissioning A Hot Inline Pump
Support The Pipework
Hot pipework moves. Supports and guides must take the weight and the expansion without loading the flanges.
Vent Thoroughly
Air collects at the highest point, often the pump. Vent before start and after every refill.
Raise Temperature Gradually
Bring the circuit up in stages so the casing and seal heat evenly.
Log Hot Running Data
Record flow, pressure and current at working temperature as the baseline.
Answers
SKGR Hot Water Pump FAQ
What temperature is allowed?
Up to 120 degrees Celsius on this model.
What if the circuit runs hotter?
Use the SKGS vertical or SKWS horizontal models, rated to 240 degrees.
Can I use it for thermal oil?
No. Thermal oil circuits should use the magnetic drive heat transfer line rated to 350 degrees.
Does it need a baseplate?
No, it is carried by the pipework, which must be supported either side of the pump.
What flow can it cover?
1.5 to 1500 m3/h with head to 150 m.
Related Equipment
Related Equipment From The Same Line
Hot duty options across the vertical and horizontal ranges.
Centrifugal Pumps
SKWR Horizontal Hot Water Pump
Horizontal pump for pressurised hot water circulation to 120 degrees.
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Centrifugal Pumps
SKG Vertical Centrifugal Pump
Vertical inline pump for clear water where floor space is scarce.
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High Temperature Pumps
Hot Oil Pump
Magnetic drive heat transfer pump for hot oil and hot water to 350 degrees.
View specifications →Need SKGR Hot Water Pump Sized For Your Duty Point
Send circuit temperature, system pressure and flow, and the model and seal come back together.