Chemical Compatibility & Media Suitability
Butterfly and multiblade FRP control dampers for balancing airflow in corrosive fume scrubbing duct networks.
Operating Temp
-20°C to +110°C
Capacity / Scope
Ø 150mm to Ø 1500mm
Design Standard
AMCA 500 / BS 4994
Testing Protocol
Low Leakage Seat Tested
Corrosion-Proof Heavy Wall FRP Butterfly Damper with Locking Quadrant
Engineering Architecture & Construction
1. Solid Molded FRP Blade & Shaft
Solid composite blade and chemical-grade PTFE/Viton shaft bushings eliminate seizing, rusting, and chemical jamming.
2. Multi-Mode Actuation Options
Available with manual lever quadrant locking, worm gear handwheel, pneumatic cylinder, or modulating electric actuator.
Technical Specifications & Design Parameters
| Engineering Parameter | Standard Specification |
|---|---|
| Damper Types | Butterfly Round Dampers, Multi-Blade Opposed Dampers, Isolation Guillotines |
| Diameter Sizes | Ø 150 mm to Ø 1,500 mm (Round) & Custom Sized Rectangular |
| Blade MOC | Molded Vinyl Ester FRP with encapsulated 316SS / Titanium core shaft |
| Sealing Gasket | EPDM, Viton, or PTFE perimeter elastomeric seat seal for tight shutoff |
| Actuator Ready | ISO 5211 top mounting pad for pneumatic / electric actuators |
| Testing | Airflow torque testing and seat tightness validation |
Target Industrial Sectors
Scrubber Ducting
Airflow Balancing Dampers
Pickling Lines
Branch Isolation Dampers
Laboratory Exhaust
Fume Hood Volume Regulators
Chemical Plants
Emergency Isolation Dampers
Pharma Facilities
Cleanroom Airflow Balance
Wastewater Works
Odor Control Duct Dampers