Specifications

WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: [phone] FAX: [phone]
westlockcontrols.com
4/7/10 TECH-382/D.W.O. 17072 Page 7 of 15
4.2.3 Usage Instructions for Option Valves
N - No-Voltage Release (Latching)
Push palm button to shift valve completely and latch by depressing small
button underneath the valve with finger. Open position will be sustained and
latch will automatically disengage when air and voltage are applied. When the
coil is de-energized, the valve will return to its original position. Available for
1.2Cv and 3.5Cv valves only (see Fig. 3).
R - No-Voltage Release (Non-Latching)
Energize coil and push palm button to manually shift valve. Valve will not
shift unless the palm button is depressed but will remain shifted until coil is
de-energized or air is lost. Available for 1.2Cv and 3.5Cv valves only (see
Fig. 4).
L - Locking Manual Override
Push palm button and rotate clockwise to maintain shifted position until
manually disengaged (see Fig. 5).
Coils must be de-energized before operating manual override.
M - Momentary Manual Override
Push palm button and hold to maintain shifted position until button is released
(see Fig. 5).
Coils must be de-energized before operating manual override.
E - External Pilot
Provide auxiliary pressurized air supply to the external pilot connection of the
valve. Supply a pressure signal (min. 45 psi) to this auxiliary port in
conjunction with electrical signal to solenoid to shift the valve. This feature
should be used when the pressure supplied to inlet port 1 is below the
minimum 45 psi operating pressure.
Fig. 3 Fig. 4 Fig. 5