PD S
Metering pumps
with eccentric movement
Plunger Metering Pump with eccentric movement, spring return and flow regulation with manual control.
The PD S plunger metering pump has been designed and constructed to meet the most varied metering demands of liquids and chemical reagents.
This pump features simple and tested operating principles, yet it does not forgo the high metering precision that characterises all Sodi Scientifica pumps.
Its sturdy and compact structure assures high performance in heavy-duty applications and makes its maintenance very straightforward.
Data sheet
Motor type MEC 56 Special Tropicalized
Gear motor in oil bath
Eccentric crank mechanism with spring return
Protection level IP 55
Power supply 230 V single-phase or 400 V three-phase
Analog flow indicator
Nominal performance
| Max flow rate(1) (2) | l/h | 5 | 10 | 15 | 15 | 30 | 45 |
| Max. press. with three-phase motor | bar | 10 | 10 | 10 | 10 | 10 | 10 |
| Max. press. with single-phase motor | bar | 7 | 3 | 3 | 3 | 3 | 3 |
Construction features
| Stroke length | mm | 15 | |||||
| Plunger DN, mm | mm | 16 | 16 | 16 | 27 | 27 | 27 |
| Strokes / 1’ (SPM) | SPM | 45 | 90 | 135 | 45 | 90 | 135 |
| Connections A/M | 7/10 mm hose connector | ||||||
| Valve type | Single sphere, Single sphere with spring AISI316 (PVC valve body only), High viscosity | ||||||
Construction materials
| Head and valve body | Glass fibre filled polypropylene |
| Plunger | Ceramic |
| Valves | Ceramic, AISI316 stainless steel, Glass, PTFE |
| Seals | FPM (Viton®), EPDM |
| Pump body | Light Alloy |
| Painting | RAL 6011 Nitrosynthetic enamel |
Manual flow regolation
Manual regulation when stationary or in motion: Theoretical 0-100%, Useful 10-100%. Plunger stroke length is regulated through a manual rotation of a graduated wheel with locking knob. The flow rate is indicated on a printed analog scale.
Supplied accessories
| Polyethylene Hose 7/10 | 4,5m | Set of head seals | 1 |
| AS 1/2″ Valve | 1 | Foot valve with filter | 1 |
| Vent hose | 1 | Plunger disassembly wrench | 1 |
Weights and dimensions
| Net weight | kg | 5,60 |
| Gross weight | kg | 5,80 |
| Packaging dimensions | mm | 340x270x240 |
