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Static 3 Hour Rated Dampers

UL 555 3 hour fire rating

Static-rated-fire dampers used in HVAC systems automatically shut down in the event of a fire emergency. These are UL 555 classified with a fire-resistance rating of 3 hours.

FD-310

This damper has a 2³/鈧佲倖 inch frame for vertical installation with temperature up to 212°F.

VIEW FD-310
https://catalog-api.greenheck.com/api/product/en-us/135

FD-350

A standard 3¹¹/鈧佲倖-in. frame with temperature up to 212°F.

VIEW FD-350
https://catalog-api.greenheck.com/api/product/en-us/136

SSFD-350

This damper has a 3¹¹/鈧佲倖 inch frame for vertical installation and temperature up to 212°F.

VIEW SSFD-350
https://catalog-api.greenheck.com/api/product/en-us/134

KFD-350

This damper used in kitchen ventilation system for horizontal installation and temperature up to 212°F

VIEW KFD-350
https://catalog-api.greenheck.com/api/product/en-us/728