Description
Industrial FRP Damper Valve Manufacturer in Gujarat
Nikunj Fibre Glass is a leading manufacturer and supplier of FRP Damper Valves (Fiberglass Butterfly Dampers & Duct Control Valves) based in Vapi, Gujarat. Specifically engineered for precise airflow regulation, isolation, and backdraft prevention in chemical scrubber ducting, acid fume exhaust lines, and corrosive ventilation networks, our FRP dampers deliver dependable sealing and complete chemical resistance.
Featuring a heavy molded FRP flanged body, internal streamlined aerodynamic composite disc, and encapsulated shaft with PTFE/Viton shaft seals, our damper valves ensure leak-proof air control without metal corrosion or binding.
Key Features & Advantages
- Chemical & Acid Vapor Proof: Withstands wet chlorine, hydrochloric acid fumes, sulfuric vapors, and corrosive moisture without pitting.
- Aerodynamic Disc Profile: Teardrop shaped composite disc blade minimizes pressure drop across the duct when in the fully open position.
- Reliable Shaft Sealing: Multi-ring PTFE gland packing prevents toxic fugitive gas emissions along the drive shaft.
- Versatile Actuation: Available with manual quadrant hand lever, worm gearbox handwheel, or pneumatic/electric quarter-turn actuators.
- Flanged Connection Standards: Drilled to match standard duct flange bolt holes or custom scrubber duct dimensions.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Nominal Duct Sizes | 150 mm to 1,500 mm (6″ to 60″ diameter) | Custom rectangular dampers up to 2m x 2m |
| Body & Disc Material | FRP (Vinyl Ester / Isophthalic Resin with high glass content) |
| Shaft Material | SS316 shaft completely encapsulated in FRP composite / Titanium |
| Shaft Seals & Bushings | Virgin PTFE bushings with Viton / EPDM O-rings |
| Operating Temperature | -20°C to +110°C continuous |
| Pressure Rating | Up to 1,000 mm WG duct pressure / vacuum |
Industrial Applications
- ✅ Chemical Scrubbing Systems: Inlet/outlet air modulation and bypass ducting around wet scrubbers.
- ✅ Pickling & Plating Lines: Balancing air extraction volume between multiple pickling tank hoods.
- ✅ Pharma Cleanroom Exhaust: Isolation of fume extraction loops during cleanroom decontamination.
- ✅ Odor Control Systems: Regulating foul air flow into biofilters and carbon adsorption beds.
Frequently Asked Questions (FAQ)
Q1: What is the shut-off leakage class of an FRP butterfly damper?
Our elastomer-seated FRP dampers provide Class IV low-leakage shutoff (less than 0.1% leakage of total flow), while metal-to-composite blade dampers provide Class II modulating service.
Q2: Can the damper valve be automated with a 4-20mA control signal?
Yes, we supply dampers mounted with smart pneumatic positioners or motorized modulatory electric actuators for PLC/SCADA integration.
