SP Series:

The side channel pumps, also called liquid ring pumps, are able to separate air and liquid from a emulsion. This action is achieved grace to its radial vane impellers and side channels or diffuser holes.

These self-priming pumps have a high priming capacity, being able to pump liquid with high air or gas content. As the impeller rotates between the two diffuser, the discharge channel shape and location changes the fluid direction continuously, going out and back from the impeller. This way, the fluid pressure increases, achieving high discharge pressures in comparison with other pump designs.

The multistage design enables one or several stages assembly. The discharge pressure is directly related to the number of stages. Therefore, the side channel pumps achieve high discharge pressures at low rotating speeds and with much less stages than multistage centrifugal pumps.

Constructive Features:

Maximum Discharge Pressures:

Types MO, BO: 10 bar (1 Mla)
Types BR: 16 bar (1.6 Mla)
The discharge pressure is the suction pressure plus the manometric pressure created by the pump.

Maximum Fluid Temperature:

Standard Version: 90°C
Specially Required: 130°C

Shaft Seal:

Standard Version: Leak-less mechanical seal.
Specially Required: Soft packing.

Rotating Sense View From Motor:

Standard Option: Clockwise.
Specially Required: Anti-Clockwise.

Materials:

The pumps can also be manufactured in different materials as nodular cast iron, stainless etc.

Applications:

The pumped fluid must be clean and without abrasive solid particles.
The side channel self priming pumps SP series have among other, the following features:

*Capacity to pump liquid with air content.
*Excellent self priming capacity.
*Low NPSH required.
*High discharge heads with very few stages. Therefore, these pumps cover a wide range of applications as high temperature fluids, high vapour tension liquids or volatile liquids.

For capacities up to 12 m3l/h and 8 bar pressure, they are many more times economical than centrifugal pumps.

Industries:

• Fuel, petrol, nafta, kerosene, diesel oil.

• Boiler feeding.

• Condensed water extraction.

• Chemical products, emulsificated fluids etc.

In general, all kinds of clean liquids with difficult suction conditions.

Marine:

• Fresh water and sea water sanitary services.

• Sanitary hot water circulation.

• Condensed water extraction on fresh water generators.

Copyright © 2008 Castle Pumps Ltd.