FLOW SWITCHES

Typ		41vS	31d	107	167	172-173	700-721	776-778
small volume from 0,6 l/h
flow.<0,3 m/s , from DN15
flow.>0,3 m/s
pressure up to 1000 bar Temp up to 500°C
dirty Media
DN> 250 mm
For Gas
vibrations
corrosive media
Turbulence
EEx d
EEx ia
certified

Flow switch with pendulum Series 107
The construction of these pendulum units has been developed over more than 30 years operational usage.

FLOW SWITCH EARL Type 107 GKL
The small yet reliable EARL type 107 GKL flow switch has been designed for constant operation controlling the flow in pipelines 3/8" to 1" diameter. Further models for 1 1/4" to 2" pipelines are available on request.

Air flow switches
Tough and unaffected by non-adhesive impurities in the medium these flow switches controls the flow of gases regardless of high operating pressures. For type 167 the units are mounted by a flanged boss (provided by the installer) either to horizontal pipes or sideways to vertical square channel. Flow direction upwards only with special flange.

The flow switch type 172 and 173 controls the flow of liquids and gases in pipes DN 40 to DN100.

Flow switch type 31d
These rugged and hard wearing float operated units measure and control gases and uncontaminated liquids. The units can be mounted in either horizontal or vertical pipes, DN 15 to DN 150, and are suitable for use with pressure ranges PN 10 to PN 320.

Flow switch for low gas- or liquid flows type 41vS
The unit has been developed for long-term operational use and controls liquid flows from 0.1 l/h or gas flows from 20 l/h referred to air with standard conditions. The unit is suitable for horizontal pipes with threaded process G ¼. The set point is factory set.

Flow switch with nozzle type 776 for DN 15 type 778 for DN 15 – 32
These units are mostly suitable for applications where vibration is likely to occur and where contaminated media have to be controlled in either horizontal or vertical pipes. The internal nozzle installed enables to control low flow velocities. The flexible sealing bellows protects the unit from metal parts which may be found in the medium when controlling lubricating oil in large gear boxes.