Wafer Damper Valves
Fully CNC machined for optimum resistance for heavy duty applications !
These dampers are primarily wafer design but can, if necessary, be produced with flanges, spool piece or lugg.
The valve is intended to be used as an isolating (shutoff) or control (regulating) valve in which closing is realized by turning the disc attached to the shaft in a range of 0-90°.
The valve is designed for bi-directional flow of the fluid where the tightness of the obturator depends on the design. Achievable class I – II – III according to Ansi FCI 70/2.
The valves are equiped with adjustable stuffing box and graphite braids.
Above 300°C, the valves are equiped with external bearing. It is possible to install a lantern ring in the stuffing boxes that will enable flushing and overpressure – securing a perfect tightness to atmospher in chemical applications.
The face to face of these valves are kept to the shortest pattern but can be extended on request
Industrial Applications of the Machined Butterfly Damper Valve
- Petrochemical plants
- Galvinized units
- Glass and cement systems with high abrasion and temperatures
- Pyrolizis and gazifications units
- Power plants
- Incinerations units
- Boilers
- Biomass plants
- Heat recovery
- Unités ORC (Organic Rankine Cycle)
- ORC (Organic Rankine Cycle) units.
- Exhaust, smoke flue, flue gas
- Industrial process burners
Product properties
range of diameters: Ø 50 mm – Ø 2 000 mm (and other sizes on request)
Technical Design and Performance Features
- design pressure < 0,5 bar
- design pressure < 3,0 bar (with PED Directive)
- design temperature -30°C do +1050 °C (max up t o 1100ºC)
Actuator Connection and Automation Options
- according to ISO 5211
- adapted to work with customer actuators or on site actuators
Coatings and Materials for High-Temperature Use
- Carbon steel elements: 1 layer Thermal coating.
- Stainless steel elements: acid treatment and passivation
- other on request, all painting systems acc. to EN ISO 12944, sy stems C2 up t o C5 – industrial/marine
Applicable directives
- Declaration of Conformity in compliance with Machinery Directive
- CE Directive
- Declaration of Conformity in compliance with EU Directive
- ATEX Directive (all g roups and z ones)
- PED Directive
Tightness class
possible class I, II and III ac c. to FCI 70-2 (ex ANSI B16.104)
