Diaphragm Pumps Ltd

SIIMetal Air Operated Double Diaphragm (AODD) Pumps are becoming the most common pumps for use when Only Air is available or when pumping solid laden liquids or slurries. SIIMetal Diaphragm Pumps have no seals as the diaphragm acts as the barrier between the Liquid side and the drive side of the pump. When the liquid pressure reaches the air pressure, the SIIMetal pump reaches a point of balance and stalls without the need for bypasses or overload protection.SIIMetal Diaphragm Pumps pump can run dry indefinately and have the ability to self prime to 7 metres or more in some cases. They can handle viscosities up to 20000 Centipoise as standard and some SIIMetal models can handle cPs into the 100's of 1000's. SIIMetal Pumps are some of the most reliable AOD's in the marketplace, Self Priming, Dry running, Intrinsically safe, these are just a few of the features of SIIMetal Diaphragm Pumps. Models include pumps for pumping hygienic products, aggressive chemicals aswell as standard industrial duties. High pressure models are also available for filter press applications or for pumping into closed systems. ATEX regulated SIIMetal pumps are offered for Zone 1 environments. SIIMetal Pumps and spares are available from Diaphragm Pumps Ltd, Stoke On Trent, England. As one of the largest stockists of pumps and spares in Europe, we hope we can supply all your SIIMetal Pump needs.



SandPIPER ® SII Metallic Range


This metal Sandpiper® pump has wetted components in Aluminum, Cast Iron, Stainless Steel, and Hastelloy-C.
They provide exceptional suction lift capacity for solids-free materials from low to high viscosity.

E02

  • Pipe Size: .25" / 6mm
  • Displacement Per Stroke: .003 gal / .01 ltr
  • Max. Flow per Minute: 4.4 gal / 16.6 ltr
  • Max. Solids Handling:.079" / 2mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S05

  • Pipe Size: .5" / 12mm
  • Displacement Per Stroke: .026 gal / .098 ltr
  • Max. Flow per Minute: 15 gal / 57 ltr
  • Max. Solids Handling: .125" / 3mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S1F

  • Pipe Size: 1" / 25mm
  • Displacement Per Stroke: .11 gal / .42 ltr
  • Max. Flow per Minute: 45 gal / 170 ltr
  • Max. Solids Handling: .25" / 6mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S15

  • Pipe Size: 1.5" / 40mm
  • Displacement Per Stroke: .41 gal / 1.55 ltr
  • Max. Flow per Minute: 106 gal / 401 ltr
  • Max. Solids Handling: .25" / 6mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S20

  • Pipe Size: 2" / 50mm
  • Displacement Per Stroke: .42 gal / 1.59 ltr
  • Max. Flow per Minute: 150 gal / 567 ltr
  • Max. Solids Handling: .25" / 6mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S30

  • Pipe Size: 3" / 80mm
  • Displacement Per Stroke: .94 gal / 3.56 ltr
  • Max. Flow per Minute: 235 gal / 889 ltr
  • Max. Solids Handling: .38" / 9.5mm
  • Max. Discharge Pressure: 125 PSI / 8.6 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr