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| Features
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- Sizes: 6" to 60" inside diameter.
- Construction: Fiberglass, Hetron 99P ® polyester resin, Class 1 flame spread of 25. Color: gray.
All FRP construction with non-metallic airstream hardware. Hardware is glass-filled polyurethane and is sealed to prevent leakage. Damper shafts are fiberglass with teflon shaft seals and rotate in teflon bearings. The blade consists of a neoprene wiper seal sandwiched between FRP disks.
Shaft, seals, and bearings are replaceable. Designed to withstand pressures up to 30 in. w.g. or more.
- Blade: Single, center pivoted blade with blade seals. Blade operates from fully closed to fully open.
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- Flanges: Undrilled.
- Operator: Manual hand quadrant.
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| Optional Accessories
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- Special Resins: A variety of special resins are available to suit a specific corrosive application.
- Base: Curb mounted and single slope arrangements are available.
- Damper: Manual chain operated damper with 10' of cable or motor operated damper.
- Birdscreen: 1/2" black polyethylene mesh or 304 stainless steel.
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