Diaphragm Pumps Ltd

SIIPlastic 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. SIIPlastic 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 SIIPlastic pump reaches a point of balance and stalls without the need for bypasses or overload protection.SIIPlastic 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 SIIPlastic models can handle cPs into the 100's of 1000's. SIIPlastic 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 SIIPlastic 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 SIIPlastic pumps are offered for Zone 1 environments. SIIPlastic 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 SIIPlastic Pump needs.

SandPIPER ® SII Non-Metallic Range


For a pump that can pass the acid test, consider the new Sandpiper® II Nonmetallic Pump Series.
Rugged, all-bolted construction. No clamps. Models in PVDF, Nylon, Conductive Acetal and Polypropylene. Specially-coated, chemically-resistant hardware.
Optional spill containment and leak detection.

PB1/4

  • Pipe Size: .25" / 6mm
  • Displacement Per Stroke: .01 gal / .04 ltr
  • Max. Flow per Minute:4 gal / 15 ltr
  • Max. Solids Handling: .03" / 1mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal |

S05 Non-Metallic

  • Pipe Size: .5" / 12mm
  • Displacement Per Stroke: .026 gal / .098 ltr
  • Max. Flow per Minute: 14 gal / 52 ltr
  • Max. Solids Handling: .125" / 3mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S07

  • Pipe Size: .75" / 20mm
  • Displacement Per Stroke: .026 gal / .098 ltr
  • Max. Flow per Minute: 23 gal / 87 ltr
  • Max. Solids Handling: .15" / 4mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S10

  • Pipe Size: 1" / 25mm
  • Displacement Per Stroke: .026 gal / .098 ltr
  • Max. Flow per Minute: 23 gal / 87 ltr
  • Max. Solids Handling: .15" / 4mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S1F

  • Pipe Size:1" / 25mm
  • Displacement Per Stroke: .17 gal / .64 ltr
  • Max. Flow per Minute: 45 gal / 170 ltr
  • Max. Solids Handling: .25" / 6mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S15

  • Pipe Size: 1.5" / 40mm
  • Displacement Per Stroke: .36 gal / 1.36 ltr
  • Max. Flow per Minute: 90 gal / 340 ltr
  • Max. Solids Handling: .47" / 12mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S20

  • Pipe Size: 2" / 50mm
  • Displacement Per Stroke: .36 gal / 1.36 ltr
  • Max. Flow per Minute: 150 gal / 568 ltr
  • Max. Solids Handling: .66" / 17mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr

S30

  • Pipe Size: 3" / 80mm
  • Displacement Per Stroke: .9 gal / 3.41 ltr
  • Max. Flow per Minute: 238 gal / 901 ltr
  • Max. Solids Handling: .71" / 18mm
  • Max. Discharge Pressure: 100 PSI / 6.9 BAR
Datasheet | Service Manual | Performance Curves Gal | Performance Curves Ltr