Function, Type Overview - Gavilar VR75 Betriebsanleitung

Function
Various orifices can be integrated into the
actuator body . Thereby a wide pressure
and capacity range can be covered . For
the desired controlled pressure reference
value springs for the range 0,45 to 16 bar
are available .
The device works without auxiliary en-
ergy . For operation of the actuator the
pressure gradient between inletpressure
and outletpressure is used . The controlled
pressure is led either directly across an
Type Overview
Type Controlled Value
VR 75 - RE Outlet pressure
VR 75 - RF
VR 75 - ÜE
VR 75 - ÜF
Overflow Regulator with inter-
nal pulse VR 75 - ÜE or exter-
nal pulse VR 75 - ÜF
12
(internal pulse pick-up)
Inlet pressure
Pressure Regulator with inter-
nal pulse VR 75 - RE
internal pulse pipe (VR 75 - RE/ÜE), or
across a separate pulse pipe (VR 75 -RF/
ÜF) under the diaphragm of the actuator .
There the actual value of the controlled
pressure, which adjusts itself depending
upon the flowrate, is compared with the
given value of the reference value spring .
With Q=0 the regulator locks closely .
E = Internal Pulse
•
•
F = External Pulse
(external pulse pick-up)
•
•
Pressure Regulator with exter-
nal pulse VR 75 - RF