Centrifugal Pumps
SKWY Horizontal Oil Pump
Horizontal pump for gasoline kerosene and diesel to 750 cSt.
View specifications →Gear Pumps
K2CY Gear Pump
Hardened gears in replaceable bearing sleeves, with a safety valve in the cap, for oil transfer, fuel supply and hydraulic power.
Overview
What This Pump Does
The K2CY external gear pump delivers non corrosive lubricating oil or equivalent liquid without solid particles or fibre, at viscosity from 5 to 1500 cSt. It is used as a transfer or booster pump, as a fuel pump for delivery pressurisation and injection, and as a hydraulic or lubricating pump.
The pump is built from gears, axles, pump body, cap, safety valve and axle end seals. The heat treated gears have higher hardness and strength and rotate with the axles inside replaceable bearing sleeves.
| Working Principle | Double Gears |
|---|---|
| Main applications | Oil |
| Driver | Electric motor, diesel motor |
| Power Specs | 380/415 V 3phase; 220/240 V 1phase;50hz/60hz |
| Max. permissible fluid temperature | 300°C |
| Type of connection | Flange, Thread, Quick Coupled |
Key Benefits
Why This Pump Lasts On Oil Duty
Hardened Gears
Heat treated gears give higher hardness and intensity, which is what resists wear on continuous oil duty.
Replaceable Bearing Sleeves
The wearing element is a sleeve that can be renewed rather than a pump that has to be scrapped.
Built In Safety Valve
A safety valve in the pump cap protects the pump and the line if a downstream valve closes.
Electric Or Diesel Drive
Driven by electric motor or diesel engine, which suits sites without reliable mains power.
Application Scenarios
Where It Is Installed
Oil Delivery Systems
Transfer and booster duty moving lubricating oil between tanks and points of use.
Fuel Supply
Delivery, pressurisation and injection duty in fuel supply systems.
Hydraulic And Lubrication
Supplying hydraulic power in a system and feeding lubrication circuits across industry.
Who It Is For
- Oil depots and workshops
- Engine and boiler rooms
- Machine builders needing hydraulic power
- Plants running lubrication circuits
Problems It Solves
Centrifugal pumps will not build pressure on oil
Fixed displacement per revolution builds pressure regardless of viscosity inside the rated band.
Wear ends the pump life
Replaceable bearing sleeves and hardened gears move the wear into serviceable parts.
A closed valve damages the system
The integral safety valve relieves pressure instead of transmitting it to the pipework.
Technical Features
How It Is Built
- Double gear working principle
- Maximum permissible fluid temperature 300 degrees Celsius
- Viscosity range 5 to 1500 cSt for the intended liquid
- Flange, thread or quick coupled connections
- Cast iron or stainless steel casing with cast iron, stainless or bronze internals
- Shaft seal ring at the axle end
Specifications
Technical Data
Published K2CY data. The standard oil duty is quoted below 80 degrees Celsius while the pump temperature limit is higher, so state your working temperature.
| Working Principle | Double Gears |
|---|---|
| Main applications | Oil |
| Driver | Electric motor, diesel motor |
| Power Specs | 380/415 V 3phase; 220/240 V 1phase;50hz/60hz |
| Max. permissible fluid temperature | 300°C |
| Type of connection | Flange, Thread, Quick Coupled |
| Installation position | Horizontal |
| Casing/Inner parts material | Cast iron, Stainless Steel/Cast iron, Stainless steel, Bronze |
| Shaft seal type | Shaft seal ring; Mechanical seal; Packing Seal |
| Free passage | 00 mm |
| Maximum viscosity | 5X104CST |
| Maximum drive rating | 75 kW （100hp） |
| Maximum caliber | 6 inch(150mm) |
| Maximum discharge-side pressure | 2.5mpa (25bar) |
| Flow rate range | 1.1-150 m3/h (18.3-2500l/m) |
Materials And Process
What Goes Into Every Unit
Materials
- Cast iron or stainless steel casing
- Heat treated gears
- Replaceable bearing sleeves
- Shaft seal ring
Manufacturing And Assembly
- Body casting and machining
- Gear heat treatment and fitting
- Assembly with safety valve set
- Test run before packing
Quality Control
- Gear clearance checked at assembly
- Safety valve setting verified
- Test run and factory acceptance record
Customization Options
- Electric motor or diesel drive
- Flange, thread or quick coupled connection
- Casing and internal material selection
- Safety valve setting to the system pressure
Compared With Other Options
| SKWY centrifugal oil pump | The centrifugal pump moves far larger volumes at lower viscosity. The gear pump builds pressure on thicker oil. |
|---|---|
| Progressing cavity pump | A screw pump handles solids and much higher viscosity, but takes more space and costs more to service. |
Use Guide
Installing A Gear Pump On Oil Duty
Check The Liquid
Non corrosive lubricating oil or equivalent without solid particles and fibre, within 5 to 1500 cSt.
Set The Safety Valve
Set the integral valve to protect the system, not just the pump, and record the setting.
Prime Before Starting
Fill the pump before the first run. Gear pumps rely on the oil for lubrication.
Filter The Suction
Fit and maintain a suction filter, because particles are what wear gears and sleeves.
Answers
K2CY Gear Pump FAQ
Which liquids suit this pump?
Non corrosive lubricating oil or equivalent liquid without solid particles and fibre, at 5 to 1500 cSt.
What temperature can it handle?
The data sheet lists a maximum permissible fluid temperature of 300 degrees Celsius, with standard oil duty quoted below 80 degrees.
Is there over pressure protection?
Yes, a safety valve is built into the pump cap.
Can it be engine driven?
Yes, electric motor and diesel drive are both listed.
Which connections are available?
Flange, thread or quick coupled.
Related Equipment
Related Equipment From The Same Line
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View specifications →Need K2CY Gear Pump Sized For Your Duty Point
Send the oil grade, viscosity at working temperature, flow and discharge pressure for a model and a valve setting.