Centrifugal Pumps
SKGH Vertical Chemical Pump
Vertical inline pump with stainless wetted parts for corrosive liquids.
View specifications →Centrifugal Pumps
SKWH Horizontal Chemical Pump
The chemical version of the horizontal platform: stainless casing and impeller, rated to 120 degrees, for corrosive liquids with viscosity similar to water.
Overview
What This Pump Does
The SKWH handles corrosive liquids that behave like water but attack cast iron. Casing and impeller are stainless steel throughout, and the shaft sealing is chosen against the chemistry rather than defaulted.
It keeps the close coupled horizontal construction of the SKW family, with flow from 1.5 to 1500 m3/h, head to 150 m and drive ratings to 160 kW, at fluid temperatures up to 120 degrees Celsius.
| Working Principle | Centrifugal |
|---|---|
| Main applications | Corrosive liquids / Chemical |
| Driver | Electric motor |
| Power Specs | 380/415 V 220v,3phase;50hz/60hz |
| Max. permissible fluid temperature | 120°C |
| Type of connection | Flange |
Key Benefits
Built For The Liquid Not Just The Duty
Stainless Wetted Parts
Casing and impeller both in stainless steel, so the pump does not become the weak point in a corrosive line.
120 Degree Rating
A higher fluid temperature limit than the standard water model, which covers most chemical transfer duties.
Seal Choice Against Chemistry
Mechanical seal with hard alloy faces or packing gland, with the elastomer selected for the liquid.
Same Footprint As The Water Model
Close coupled construction keeps the installation compact, so a chemical duty does not cost extra floor area.
Application Scenarios
Where It Is Installed
Chemical Transfer
Moving corrosive liquids similar to water in viscosity between storage and process.
Process Circulation
Circulating treatment chemicals and process liquids where cast iron would corrode.
Utility Duty With Aggressive Water
Water containing chlorides or treatment chemicals that would shorten the life of a standard pump.
Who It Is For
- Chemical and petrochemical plants
- Water treatment works dosing and circulating chemicals
- Surface treatment and plating lines
- Plants replacing a corroded cast iron pump
Problems It Solves
The casing corrodes before the seal fails
Stainless construction moves the life of the pump back to the wear parts rather than the body.
Temperature and chemistry together
A 120 degree rating with stainless wetted parts covers hot chemical duty that neither a water pump nor a cold chemical pump handles.
Spares that fit the original
Standard platform construction means impellers and seals are available against the model number.
Technical Features
How It Is Built
- Stainless steel casing and impeller
- Close coupled horizontal construction
- Mechanical seal with hard alloy faces or packing gland
- Flanged connections, free passage 0.2 mm
- Maximum specific gravity 1.1
- Electric motor drive at 380 to 415 V three phase, 50 or 60 Hz
Specifications
Technical Data
Published SKWH data. Corrosive service selection depends on the specific chemical and concentration, so send those with the duty point.
| Working Principle | Centrifugal |
|---|---|
| Main applications | Corrosive liquids / Chemical |
| Driver | Electric motor |
| Power Specs | 380/415 V 220v,3phase;50hz/60hz |
| Max. permissible fluid temperature | 120°C |
| Type of connection | Flange |
| Installation position | Horizontal |
| Casing/Impeller material | Stainless steel/ Stainless steel |
| 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
- Stainless steel casing
- Stainless steel impeller
- Hard alloy mechanical seal faces
- Elastomers selected against the chemical
Manufacturing And Assembly
- Stainless casting and machining
- Impeller balancing
- Assembly and hydraulic test
- Packing with documentation
Quality Control
- Material verified before assembly
- Hydraulic test before dispatch
- Factory acceptance test record with the order
Customization Options
- Seal face and elastomer chosen against the chemical
- Mechanical seal or packing gland
- Motor rating and supply to site requirements
- Flange drilling to the required standard
Compared With Other Options
| SKW water pump | Same platform, but the SKWH has stainless wetted parts and a 120 degree rating for corrosive liquids. |
|---|---|
| SKGH vertical chemical pump | Identical duty in a vertical inline body, for plant rooms where the pipework rather than the floor decides the layout. |
Use Guide
Running A Chemical Duty Pump Safely
Confirm Compatibility
Send chemical, concentration and temperature so seal faces and elastomers are chosen, not assumed.
Install With Isolation
Valves and drain arrangements that let the pump be isolated and flushed before any maintenance.
Flush Before Service
Flush the casing before opening it, and follow the plant chemical handling procedure.
Monitor The Seal
Any trace of leakage at the seal drain on chemical duty is a reason to plan a change, not to wait.
Answers
SKWH Horizontal Chemical Pump FAQ
What fluid temperature is allowed?
Up to 120 degrees Celsius on the SKWH data sheet.
Which liquids is it intended for?
Corrosive liquids similar to water in viscosity and without solid particles. Send the chemical and concentration for confirmation.
What are the wetted parts made from?
Stainless steel casing and stainless steel impeller.
Can it be supplied with a magnetic drive instead of a seal?
Not in this model. Where no leak path is acceptable, look at the magnetic drive range, which has no shaft seal at all.
What is the maximum specific gravity?
1.1 as published. Denser liquids change the power requirement, so tell us the specific gravity with the duty.
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View specifications →Need SKWH Horizontal Chemical Pump Sized For Your Duty Point
Send the chemical, the concentration and the temperature with the duty point and the seal specification comes back with the quotation.