A sequence valve makes a circuit do things in order. It stays closed until the set pressure is reached — which happens once the first cylinder has bottomed out — then opens and passes flow to the second function.

The classic use is a clamp-then-cut circuit: the clamp closes first, pressure builds against the stop, the sequence valve opens and only then does the cutting cylinder move. No electrics, no limit switches.

Set it correctly: the sequence pressure must be comfortably above the pressure needed to complete the first movement, but below the system relief setting. Too close to either and the sequence becomes unreliable.

Manufactured by CBF Hydraulic, Montecchio Maggiore, Italy. Recommended oil viscosity 10–420 cSt, working temperature −20 to +90 °C, absolute filtration 25 µm.