Double acting VBD, single acting VBS pilot check valves
The valves guarantee the blocking of a certain load in the desired position, they are used with double and single-acting cylinders, for the release they require a pilot pressure. The external body is made of high-strength steel and externally protected from oxidation with a zinc plated treatment, it is possible to request a surface treatment in zinc/nickel to increase the resistance to oxidation, in the event that, for example, the valve is not very protected, and exposed to atmospheric agents.
The seal is guaranteed by a hardened and ground conical shutter.
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