Valves with fast discharge to periodically extract scale deposits and other impurities from boilers, vessels and pressurized equipment.

• "Main features are: instantaneous opening and closing for residue extraction, minimum pressure loss and full valve sealing."
• VDFM: manual blowdown valve with manual actuation by means of a lever.
• VDFA: automatic blowdown valve with pneumatic actuation along with a time controller.