Pneumatic Double Diaphragm Pumps

L2 Diaphragm pump with regulator and pressure gauge.

Rockingham Systems uses and supplies Larius and SKF Lincoln Industrial Pumps. When using these pumps we will analyse the application, chemical composition of the product to be used and required performance. We will then select the required gasket kit for the application and if necessary we make internal modifications to optimise how the pump works.

Diaphragm pumps work by introducing compressed air through the pneumatic exchange behind one of the two diaphragms, which generates compression and pushes the product into the delivery duct, at the same time the opposing diaphragm creates a vacuum and intakes product.

Once one stroke has been completed the pneumatic exchanger diverts the compressed air to the opposite diaphragm and the cycle is reversed.
Some of our diaphragm pumps carry ATEX certirfication, and they all come in either Aluminum or Stainless Steel, offering maximum flow-rates of 21-900 Litres per minute.


L2 Diaphragm Pump

L2 Diaphragm Pump

For the transfer of low-medium viscosity fluids.

Available in: Aluminium - Stainless steel.

Max Flow: 21 L/min.

Max Solids: 2.4 mm

L4 Diaphragm Pump

L4 Diaphragm Pump

For the transfer of low-medium viscosity fluids.

Available in: Aluminium - Stainless steel.

Max Flow: 40 L/min.

Max Solids: 3 mm

L5 Anti-corrosive Diaphragm Pump

L5 Anti-corrosive Diaphragm Pump

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 100 L/min.

Max Solids: 4 mm

L6 Anti-corrosive Diaphragm Pump

L6 Anti-corrosive Diaphragm Pump 

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 150 L/min.

Max Solids: 4 mm

L7 Anti-corrosive Diaphragm Pump

L7 Anti-corrosive Diaphragm Pump 

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 220 L/min.

Max Solids: 5 mm

L8 Anti-corrosive Diaphragm Pump

L8 Anti-corrosive Diaphragm Pump 

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 340 L/min.

Max Solids: 6 mm

L9 Anti-corrosive Diaphragm Pump

L9 Anti-corrosive Diaphragm Pump 

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 650 L/min.

Max Solids: 8 mm

LX Anti-corrosive Diaphragm Pump

LX  Anti-corrosive Diaphragm Pump 

High Capacity for Pumping liquids - Corrosive & aggressive acids.

Available in: PP - PVDF - ECTFE - Aluminium - AISI 316 Stainless steel.

Max Flow: 900 L/min.

Max Solids: 10 mm

Suitable Product Applications

  • Paints, Primers, Solvents and lacquers.
  • Ceramics and enamels.
  • Inks and dyes.
  • Resins and adhesives.
  • Lubricants, vegetable and mineral oils.
  • Petrochemicals.
  • General chemicals.
  • Acids and Caustics.
  • Release agents.
  • Detergents.
  • Food products.
  • Products used in tanneries.
  • Urea.
  • Galvanic fluids.
  • Textile chemicals.
  • Corrosive, abrasive and high density fluids.

Take advantage of our industry expertise and contact us with details of your application.

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