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PD H90

Metering pumps

hydraulic diaphragm

Hydraulic Diaphragm Metering pump with rod crank mechanism, positive return crank, flow regulation with manual or servo assisted control.
The PD H90 hydraulic diaphragm 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 very sturdy structure assures high performance even in heavy duty applications and makes its maintenance very straightforward.
The hydraulic diaphragm system makes it possible to reach high operating pressures.

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Data sheet

Hydraulic Diaphragm system
Asynchronous Motor type MEC 90 A4 B5 Tropicalized
Standard three-phase 400 V 50Hz power supply
Gear motor in oil bath
Rod crank mechanism, crank with positive return
Protection level IP 55
Built-in safety valve

Nominal performance

Max flow rate (1) (2) l/h 500 1000 1500
Max press bar 10 8 6

Construction features

Diaphragm DN, mm mm 200 200 200
Strokes / 1’ (SPM) SPM 43 86 129
Flanged connections A/M EN 1092-1 PN 10/16 DN 40 40 40
Safety valve Built-in
Valve type Single breechblock
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Construction materials

Head and valve body PVC; AISI 316 stainless steel
Breechblock PTFE
Diaphragm PTFE covered NBR
Seals FPM (Viton®), EPDM
Pump body Light alloy
Painting RAL 5019 Nitrosynthetic enamel

Flow regulation

Manual regulation when stationary or in motion with automatic regulation option: Theoretical 0-100%, Useful 10-100%. The oil flow rate is regulated through a manual rotation of an adjustment knob, and in its turn it acts on the diaphragm stroke length.
The analog indicator shows the pump’s instantaneous flow rate.

Accessories on demand

A number of accessories are available on demand, such as, just to name a few, self-regulator with 4-20 mA signal, injection valve, flexible hose etc.

Weights and dimensions

Net weight kg 60,50
Gross weight kg 75,80
Packaging dimensions mm 900x700x620
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