Spring Return - Type B Hydraulic Diaphragm

Series SR - Type B - Hydraulic diaphragm dosing pump

"B" type hydraulic diaphragm metering pumps are suitable for use when the liquid to dose contains small suspended solids, when high pressure is required and when piston lackage are not accepted. 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

B125N

108 Lt/h 20 Bar

B175N

418 Lt/h 20 Bar

B250N

1068 Lt/h 12 Bar

 

Some standard execution 41 43 29
Pump head S.S.316 PVC PP
Diaphragm PTFE PTFE PTFE
Piston S.S.420 S.S.420 S.S.420
Piston gasket AU/NBR AU/NBR AU/NBR
Oil chamber All. All. All.
Valve seat S.S.316 PVC PP
Valve ball S.S.316 PYREX PYREX