Foot Pedal/Treadle Valves

Foot pedal/treadle models are operated with a foot pedal/treadle that shifts the spool. The standard treadle position for a 3-position valve is the center of the valve (Position "B"). To fully shift the valve, the pedal/treadle is stepped on towards the operator (Position "A") or the treadle may be stepped on away from the operator (Position "C"). On 2-position valves, there is no positive detent for centering the spool (Position "B").
User must assume full safety responsibility for the use of foot valves. Guards are recommended and may be ordered as optional extras for certain models.
Code Prefixes Description Symbol
FO FO, NFO
ZFO, ZNFO
2-position, spring returned spool. Spool returns to position "C" when the pedal is released. FO
FR FR, NFR
ZFR, ZNFR
2-position, pilot returned spool. Spool returns to position "C" from auxiliary control valve furnished by the user. FR
TE TE, NTE
ZTE, ZNTE
2-position, friction positioned. Spool stays in any position when treadle is released. TE
TO TO, NTO
ZTO, ZNTO
2-position, spring returned spool. Spool returns to position "C" when the treadle is released. TO
TA TA, NTA
ZTA, ZNTA
2-position, spring returned spool. Spool returns to position "A" when the treadle is released. TA
TR TR, NTR
ZTR, ZNTR
2-position, pilot returned spool. Spool returns to position "C" from auxiliary control valve furnished by the user. TR
TY TY, NTY
ZTY, ZNTY
3-position, spring centered. Spool returns to position "B" when treadle is released. TY
TD TD, NTD
ZTD, ZNTD
3-position, friction position, positive detent in all positions. Spool stays in position when lever is released. TD
TW TW, NTW
ZTW, ZNTW
3-position, positive detent in position 'C', spring return from position 'A' to center position 'B'. Previously known as 189VY action. TW
TX TX, NTX
ZTX, ZNTX
3-position, positive detent in position 'A', spring return from position 'C' to center position 'B'. Previously known as 360VY action. TX