TransShield Modes 1 & 2 Stainless Sliding Plate Fire Dampers

Transhield_-front-Cover.jpg
Transhield_-front-Cover.jpg

TransShield Modes 1 & 2 Stainless Sliding Plate Fire Dampers

Key Features

Slimline stainless steel sliding plate construction for air transfer applications through fire rated doors and dry/wall partitions. 

External manual release, resetting and testing facilities. 

External visual indication of damper status. 

Choice of two interchangeable and replaceable release and reset mechanisms with either manual (Mode 1) or manual and 24 Volt DC electro magnet release (Mode 2). 

Fail-Safe Fusible Link and spring instant closure. 

Five sizes available complete with specially designed matching non vision transfer grilles with radius edges and countersunk fixing.



Description

Flanged 18 gauge stainless steel Sliding Seal and Static Damper Plates with horizontal perforations which provide, whilst the Seal Plate is in the open position, a free area of not less than that of the specially designed Grilles, for the passage and transfer of ventilation air in either direction. The Damper Sliding Plate is retained to the Damper Static Plate with stainless steel shouldered rivets and fails-safe to the instant closed position, powered by two stainless steel tension springs, with the melting and parting at a temperature of 72 ?C of an all brass Fusible Link attached to Sliding Seal Plate, to form a fire resistant shield from either air flow direction. The Fusible Link functions independently and regardless of choice or status of Release and Reset Mechanism.

Construction

Please see catalogue for further information.

Specification

Specification The design of the TransShield Dampers shall comprise of flanged 18 gauge stainless steel Sliding Seal and Static Damper Plates with horizontal perforations to provide whilst the Seal Plate is in the open position, a free area of not less than that of the matching Transfer Grilles, for the passage and transfer of ventilation air in either direction. The Damper Sliding Seal Plate shall be retained to the Static Damper Plate with stainless steel shouldered rivets and failsafe to the instant closed position powered by two stainless steel tension springs either by the melting and parting of an attached Fusible Link at a temperature of 72 ?C, or the functioning of the relevant Release and Reset Mechanism to maintain integrity and not permit the passage of flame when exposed to the time/temperature curve of BS476 Part: 20 1987 for a period of two hours as tested by the Fire Insurers? Research & Testing Organisation (Approval TE 6523). Both Damper Plates together with a removable Release and Reset Mechanism Cassette shall be housed within an 18 gauge stainless steel slimline Damper Casing having integral flanges with prepunched fixing holes. The Cassette shall have screw fixing for ease of attachment to and withdrawal from the Damper Static Plate without disturbance to the Damper and shall contain recessed from view but readily accessible, a Release Lever and Resetting Shaft, both manually operated, and a spring loaded Damper Set and Status Pin which in the exposed position shall provide visual indication of Damper status. The Cassette shall also contain either of two interchangeable and replaceable Release and Reset Mechanisms. Mode 1 Manual Release Fusible Link shall actuate the instant closure of the Damper due to an abnormal rise in temperature. Mode 2 Manual and Electro Magnet Release A 24 Volt DC Electro Magnet shall actuate the instant closure of the Damper when the electrical supply is interrupted, either as a function of a Smoke Detector System or due to failure of the electrical supply and in both events, before the operation of the Fusible Link due to an abnormal rise in temperature or a full fire condition occurs. Each TransShield Damper shall be complete with 18 gauge stainless steel flanged backing sleeve and a pair of specially designed matching non vision Transfer Grilles with radius edges, countersunk fixing holes and constructed in 18 gauge galvanised mild steel finished in Polyester Powder coat to RAL 8025 gloss brown.

Dimensions

Standard units are suitable for wall thickness 44mm to 75mm



Product Documents

Title Type Added Link
TransShield Modes 1&2 Catalogue Brochure about 5 months ago Download >

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