The mechanically actuated valves of Series 1 in G1/8 and G1/4 and of Series 3 in G1/8 are made with three different devices:
front actuation
roller lever actuation
one-way roller lever actuation.
Reset for each of the three devices is by mechanical spring.
Series 3 3/2-way monostable valves are normally closed in the rest condition when the pressure inlet is at 1; they become normally open when the pressure inlet is on connection 3, while the use at 2 always remains unchanged.
Series 3 5/2-way valves can be supplied from connections 3 and 5 with 2 different pressures, should a cylinder need to be operated with two different working pressures.
