Dorgard is
r
otection
the clever
d
P
solution
Holland Park Pre-Prep and Day Nursery way of legally holding open fire doors
school has chosen Dorgards to protect safely in any position, automatically
fire doors in busy corridors, classrooms releasing them should the fire alarm
and admin offices throughout its elegant sound. Dorgard also offers significant cost
1850’s terrace buildings. Dorgards have advantages as it can be fitted in minutes,
F
i
r
e
& Hazar
New mains
been fitted to fire doors in busy corridors with no wiring required.
and classrooms enabling them to be With over 275,000 Dorgards installed
switching
legally held open, allowing an unrestricted across the UK, the Dorgard range is the
flow of pupils and staff using busy traffic solution to the illegally wedged open fire
routes throughout the day. door problem, in any environment.
input/output
The school, based in Holland Park Dorgard complies fully with all relevant
West London, recognises that Dorgard British Standards and EU Directives.
from Fireco is the wireless solution www.firecoltd.com Tel: 0845 241 7474
unit
offering the simplest, most cost-effective e-mail: sales@firecoltd.com
Apollo’s new mains switching Explosion-Proof Smoke Detectors
input/output unit, designed for mounting
on a DIN-rail, provides a voltage-free, The Fireray 2000 can cover an area of up to
single pole change-over relay output with EExd is a beam-type 1500m
2
: the beam is
a contact rating of 250V AC @ 5Amp and smoke detector effectively 15m wide, and
48V DC @ 2Amp. It also has a monitored from Fire Fighting the heads can be up to
switch input that is designed to supervise Enterprises Ltd. It is 100m apart. By
one or more normally-open switches the only beam comparison,
connected to a single-pair of cables. detector in the approximately 15 point
The device is supplied in a DIN-rail world certified to detectors would be
housing which can be clipped onto a ATEX 94/9/EC needed to cover the same
standard 35mm DIN-rail (DIN 46277). (DIN- standard for use in area, which would greatly
rail enclosures and end-stops are available Group 2 hazardous increase the costs of
from Apollo). Connections are made via areas, and brings hardware, cabling,
plug-in terminal blocks which accept wires the benefits of wide-area smoke detection installation and maintenance.
up to 2.5mm2. The unit has dimensions of to environments with a risk of explosion. As with other Fireray products, the
110 x 107 x 20mm and weighs just 95g. It Oil rigs and refineries, petrochemical F2000 EExd has a drift compensation
has been designed to comply with plants, power stations and storage depots feature to guard against gradual loss of
EN54–18. can all be safely protected by beam signal caused by dust build-up on the
The mains switching input/output unit detector systems more efficiently than detectors or building shift, reducing the
is loop-powered and can only operate with traditional ‘point’ detectors. incidence of false alarms. A recent
control equipment using Apollo’s XP95 or Each F2000 EExd is comprised of three example of the type of application that can
Discovery protocols. Application examples parts – an infrared transmitter and a benefit from this unique product is the Ho
include air sampling units, mains power receiver placed on opposing surfaces, and Ping Power Station in Taiwan, which uses
shut-down on machinery, automatic door a low level control unit, all ATEX certified. around 20 Fireray 2000 EExd products to
retainers, smoke dampers and gas valves. Any smoke entering the beam path is protect its 1320MW capacity output from
www.apollo-fire-co.uk detected by the loss of signal strength fire risks. Email: sales@ffeuk.com
E-mail: sales@apollo-fire.co.uk between the detector heads, so product www.ffeuk.com
Klaxon expands market with low voltage AC sounder
Klaxon Signals has introduced a low- available as either a All Nexus
voltage AC version of the multi-purpose sounder or sounder- connections are made
Nexus sounder for use with applications beacon with red or to the base and the
that have a low voltage AC supply. amber LED options. head “clicks” into
In general, low voltage AC signalling The Nexus place ensuring a fast
products between 24-48V AC are not combines a powerful and reliable installation.
readily available in the industrial market, so 110 dB sound output Additionally, the head
Klaxon’s Low Voltage Nexus can meet the and high efficiency is fixed by quarter turn fasteners
demand and provide signalling for LED beacon to create a powerful audio- rather than four individual screws,
applications including cranes, conveyors, visual warning signal. The Low Voltage saving more time and providing accurate
moving machinery and process control Nexus is also water and dust proofed to seal compression for weatherproofing.
alarms. IP66 for heavy industrial or outdoor E-mail: sales@klaxonsignals.com
Products in the Nexus range are applications. www.klaxonsignals.com
26 feature :: fire & hazard protection Building & Facilities Management – March 2009
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