Spring Return - Type D Mechanical Diaphragm

Series SR - Type D - Mechanical diaphragm dosing pump

"D" type mechanical diaphragm metering pumps are suitable for use when the liquid to dose contains small suspended solids and when high pressure is not required. The gearbox is a standard wormwheel reduction system coupled with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specification. The mechanism for variation of the stroke length is a positive stroke spring return operated by an eccentric. Stroke adjustment can be done manually, electrically (4-20mA; Profibus) and pneumatically. Different multiple head units are available on request. All the series can be ATEX certified.

Type

Max. Capacity

Max. Pressure

D050N

49 Lt/h 10 Bar

D100N

374 Lt/h 5 Bar

D101N

406 Lt/h 8 Bar

D121N

574 Lt/h 3 Bar

 

Some standard execution 11 12 13 23
Pump Head S.S.316 PP/FRV PVC PVDF
Diaphragm PTFE/NBR PTFE/NBR PTFE/NBR PTFE/NBR
Valve seat S.S.316 PP PVC PVDF
Valve ball S.S.316 PYREX PYREX PYREX