Proportional Pressure Valves
Series RE*T / R*V
Operation Manual
13
Parker Hannifin Corporation
RE_-R_V obe_24-45-A-B 5715-651 UK 29.01.19
Pressure Fluids
The following rules applies for the operation with 
various pressure fluids:
This information serves for orientation and 
does not substitute user tests among the 
particular operating conditions. Particularly 
no liabiliy for media compatibility may be 
derived out of it.
Mineral oil: usable without restriction.
For operation with the following pressure fluids 
please consult Parker:
For detailed information concerning pressure 
fluids note VDMA-document 24317 as well as 
DIN 51524 & 51502.
Special gaskets may be available depending on 
the utilized fluid.
In case of insecurity please consult Parker.
Air Bleeding of Hydraulic System 
During initial startup, after an oil change as well as 
after the opening of lines or valves the hydraulic 
system must be air bleeded.
Filter
The function and lifetime of the valve are strongly 
affected by the cleanliness of the fluid.
purity level class of 18/16/13 acc. ISO4406 is re-
quired.  
Flushing  
It is recommended to flush the pipelines by short 
circuiting the pressure and return lines. This prevents 
the installation dirt from entering the valve.
HFA oil-in-water emulsion
HFB water-in-oil emulsion
HFC aqueous solution (glycols)
HFD unhydrous fluids (Phosphor-Ester)
Example: RE06M*T