PARKER R4V / R6V Pilot Operated Pressure Relief Valves

PARKER Series R4V*5 and R6V*5 pressure relief valves feature a manual adjustment pilot stage which controls a seated type main stage.
A vent function with a solenoid operated directional valve is available for circulation at minimum pressure.

Features
• Pilot operated with manual adjustment
• 2 interfaces:
– Subplate, ISO 6264 (DIN 24340 Form D) 
with VV01 vent valve (R4V)
– Subplate, ISO 6264 (DIN 24340 Form E) 
with CETOP 03 vent valve (R6V)
• 3 pressure ranges
• 3 adjustment modes:
– Hand knob
– Acorn nut with lead seal 
– Key lock
• Remote control via port 

 

Function
System pressure in port P is applied via the X gallery to the spring loaded cone in the pilot head. The pilot head controls the pressure in the Z area on top of the main cartridge which is additionally kept close by the main spring. If the pilot pressure exceeds the setting pressure the pilot cone opens and thus limits the pilot pressure.
When the system pressure exceeds the pilot pressure plus the spring force, the main cartridge opens to port T and limits the pressure in port P to the adjusted level.
Additionally to the relief function, a solenoid operated vent valve connects the Z area to tank. This allows oil circulation from P to T at minimum pressure drop. The vent valve can either be a standard CETOP 03 valves (mounting form E) or a sandwich unit (mounting form D). For both types the vent position can be either at the energized or de-energized solenoid.

 

 

Relative item numbers:

016-84797-0	R4V10  5D1 12       A1
016-84982-0	R4V03  535 W0       A1
016-84988-0	R4V06  535 W0       A1
016-84996-0	R4V10  535 W0       A1
016-85034-0	R4V03  513 10       A1
016-85108-0	R4V03  535 30       A1
016-85200-0	R4V06  533 10       A1
016-85235-0	R4V03  535 10       A4
016-85279-0	R4V10  5A3 10       A1
016-85325-A	R4V06  513 10       A1 DT
016-85325-0	R4V06  513 10       A1
016-85518-0	R4V03  535 31       A1
016-85519-0	R4V03  531 31       A1
016-85556-0	R4V06  563 10       A1
016-85564-0	R4V10  533 10       A1
016-85600-0	R4V06  511 10       A5
016-85740-0	R4V03  561 30       A1
016-85979-0	R4V03  561 32       A1
016-86051-0	R4V06  591 12       A1
016-86201-0	R4V10  535 30       A1

016-86459-0	R4V03  565 12 P1G0Q A1
016-86469-0	R4V06  5D5 20       A1
016-86487-0	R4V06  5A5 10       A4
016-86996-0	R4V06  535 10       A5
016-87004-A	R4V03  515 10       A5 DT
016-87004-0	R4V03  515 10       A5
016-87108-0	R4V03  561 12       A1
016-87241-0	R4V03  563 30       A1
016-87512-0	R4V10  531 30       A1
016-87653-0	R4V06  533 11       A1
016-87653-5	R4V06  533 11       A5
016-87702-0	R4V03  533 11       A1
016-87702-5	R4V03  533 11       A5
016-87751-0	R4V06  5A3 10       A1
016-87751-5	R4V06  5A3 10       A5
016-87819-0	R4V06  533 30       A1
016-87820-0	R4V10  533 30       A1
016-87947-0	R4V03  535 11       A4
016-87991-0	R4V10  535 11       A1