The NLF series is single seat valves Pneumatically operated, specially designed for installation at the bottom of a container in the pharmaceutical and food industries, beverage production, dairy production, and fine chemistry processes.
The principle of operation
Seat valves they are powered by simple or double-acting actuators. When air is supplied, the stem is activated, leaving the valve in the "open" or "closed" position.
The following configuration is possible: the seat opens inside the valve to avoid accidental openings and possible contacts with the scrapers.
Design and characteristics
A fully drained valve eliminates product stagnation.
The valve is normally closed (NC, spring for closing) as standard.
Installation of a normally open valve (NO, spring to open)
by simply turning the drive.
The valve seat opens inside the tank to avoid accidental opening when there is excessive pressure in the tank