Remote Pilot Valves

Pilot models are operated with a remote pressure source that shifts the spool. To shift the valve, remote pressure source is sent to the valve. Refer to the section on flow control to understand more on spool position and port flow.
Code Prefixes Description Symbol
RR RR, BRR
NRR, ZRR
ZNRR
2-position, double pilot, friction positioned. Spool stays in shifted position when pilot pressure is removed. RR
RO RO, BRO
NRO, ZRO
ZNRO
2-position, spring returned spool. Spool returns to position "C" when the pilot pressure is removed. RO
RY RY, BRY
NRY
3-position, spring centered. Spool returns to center position when pilot pressure is removed. RY
GR GR 2-position, double pilot. Main spool is shifted by pilot pressure from remote valve. Spool is shifted by pilot pressure (12 and 16P). GR
GY GY 3-position. Main spool is shifted by pilot pressure from remote valve. Spool is shifted by pilot pressure. Spool is centered by dual pressure on pilots (12 and 16P). GY