The MSD valve is a direct operated sequence valve of the spool type and is used to control two or more actuators in succession.
At rest position, it is normally closed and the spool is subject to pressure in line P1 on one side and to the adjustment screw on the other side. When the pressure in line P1 reaches the set value of the screw, the valve opens and allows passage of the fluid in the pressure line of the main circuit.
The valve stays open until the pressure in the circuit drops below the calibrated value set by the spring.
It is made as a modular version with ports according to the ISO 4401 standards and can be assembled quickly without the use of pipes under the ISO 4401-03 directional solenoid valves.
It is normally supplied with a hexagonal head adjustment screw. Upon request, it can be equipped with a SICBLOC adjustment knob with micrometric indication and automatic locking.