Plunger valves consist of a cylindrical brass body, a steel plunger with a conical valve and a thrust spring. Connected to vacuum, they are normally closed; they open when operating on the plunger.
The valves of this series consist of a body in anodized aluminium, a steel pin integral with a conical valve and a stainless steel thrust spring. Connected to vacuum, they are normally closed; they only open when the pin is operated by a cam or any other mechanical device.
They are special unidirectional valves that, when suitably calibrated, allow a certain quantity of fluid to go through, afterwards, if the fluid continues to go through, they automatically close.
They are unidirectional valves made in bronze and with seals in oil-resistant rubber. Their function in a vacuum circuit is of auto check. When fitted on the vacuum pumps suction inlets, when the pumps stop, they prevent the air returning through the pump to the plant brought to vacuum.
These hand-operated valves are used to intercept vacuum in those circuits where it is not possible to use solenoid valves.
They consist of a body in die-cast brass, turned and nickel-plated, a ball valve in steel chromium plated at thickness and teflon gaskets in order to guarantee a seal even in high temperature applications.