 DSH series fire vents are available in a number of standard ULlisted
and FM-approved sizes. Features include fully insulated
covers and galvanized steel or aluminum construction. By Bilco.
Construction Specifications:
Material-Steel: Cover and frame are 14
gauge G-90 paint bond galvanized steel
aluminum: Cover and frame are 11 gauge
aluminum
Covers: Breakformed, hollow-metal design
with 1" concealed fiberglass insulation, 3"
beaded, overlapping flange, fully welded at
corners, and internally reinforced for 40 psf
(195 kg/m2) live load
Curb: 12" in height with integral capflashing,
1" fiberboard insulation, fully welded at corners,
and 3-1/2" mounting flange with 7/16"
holes provided for securing frame to the
roof deck
Gasket: Extruded EPDM rubber gasket
permanently adhered to the covers
Hinges: Heavy-duty pintle hinges
with 3/8" Type 316 stainless steel hinge
pins
Latch: Positive hold/release mechanism
controlled by a single UL-listed 165°F
(74°C) fusible link with a separate latching
point for each cover. Designed to hold the
covers closed against a 90 psf (438 kg/m2)
wind uplift force.
Performance Ratings: UL-listed and FMapproved.
Comply with UL 790 Class A
(burning brand test).
Finish-Steel: Alkyd base red oxide primer,
Aluminum: Mill finish
Hardware-Steel: Engineered composite
compression spring tubes. Steel compression
springs with electrocoated acrylic finish.
All other hardware is zinc plated/chromate
sealed. Aluminum: Engineered composite
compression spring tubes. Steel compression
springs with electrocoated acrylic finish.
Type 316 stainless steel hinges. All other
hardware is zinc plated/ chromate sealed.
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WB
Type DSH Auto Fire Vent