RVS Blow-Through Rotary Valves consist of a tubular cast iron or stainless steel casing, a horizontally mounted rotor with a certain number of oblique V-shaped cross section compartments, a drive unit and a casing cover at each end.
Function
Two compartments at a time of the continuously turning rotor are filled up with material through the inlet at the top of the Rotary Valve. After less than half a turn the material falls through the bottom opening into an air stream passing through a pneumatic conveying pipeline connected with the bottom part of the Rotary Valve.
Performance & Technical Features - Benefits
Feed rate: 5 9 14 20 38 litres per revolution (0.17 0.3 0.5 0.7 1.3 cu ft per revolution)
Available in ATEX zone 22 version
Robust and compact design
Rotor: integral with beveled blades, with scrapers (Viton, Vulkolan, Teflon)
Fixed rotor speed: 10 / 20 / 30 r.p.m.
Variable rotor speed: 4 22 r.p.m.
Rotor surface treatment: nickel plating, Teflon® coating, hardened blades
Casing: cast iron or 304 / 316 stainles steel
Casing surface treatment: nickel plating, Teflon® coating
Drives: direct with gear motor, with variable speed gear motor, coaxial with chain transmission, bare shafted without drive
Easy access to all internal mechanical parts
Options & Accessories
Shaft seals: lubricated, air- / nitrogen-purged, or high-temperature-resistant
Fan-cooled electric motor
Electric motor thermistors
Blade scrapers
