Ordering
Specification
Inner frame manufactured from 1.0mm galvanised
mild steel to BS 1449 Part 1, CR4 Grade ZZ. Formed
to channel shape with end flanges. The four parts of
the inner frame are rivetted together with two
stainless steel rivets 3mm diameter x 6mm long at
each of the four corners. The outer frame is
manufactured from 1.6mm galvanised mild steel
formed into 4 sections and welded to form a rigid
frame. The inner frame is secured through the flange
onto the outer frame using No6 screws.
Blades of 0.457mm stainless steel to BS 1449 Part 2,
1975 302 S16, are formed into hollow section with a
radiused leading edge and vee shaped trailing edge.
The section is spot welded together after forming at
the point of the vee, spotwelds at a pitch of 33mm.
The blade ends are closed off by stainless steel end
caps, material specification as per the blade and
have stainless steel pivot pins rivetted to them, the
pivot pins have suitable flats to engage the blade
drive pinions. The end caps are secured to the blade
by three 2.8mm diameter stainless steel rivets 6mm
long at each end.
Holes in the inner side frame to accept the blade
pivot pins are set at suitable spacings to allow blade
leading edges to interlock in the vee of the next
blade. Side seals of 0.152mm stainless steel as per
blade specification, are formed and pierced to accept
blade pivot pins, and are assembled between frame
sides and blade ends. Top and bottom seals are
manufactured in material as for side seals but are
retained on top and bottom inner frames by nibs
formed in frame inner surfaces.
The blades are actuated by a 3mm thick x 40mm
steel rack located in the side frame, and acting on
steel pinions attached to blade pivot pins. The rack
and pinions are zinc plated and passivated, and are
contained in the side frame by a cover plate for
Modes B and C, the blades are held in the open
position via the rack, which in turn is held by a conical
ended stainless steel pin engaging in a female
keyhole aperture in the rack. The action of the rack
through the spring action is to disengage the pin, but
this is prevented by an electro-magnet. When the
electro-magnet is deenergised it allows the stainless
steel pin to move forward, thus disengaging the rack
which moves immediately to the closed position
shutting the blade pack.
For Mode A units a 72°C Fusible link is mounted on
pivot brackets on the two opposed action blades. On
failure of said fuse link blades are allowed to move in
opposed directions, synchronised and driven by the
spring loaded rack and pinion arrangement.
Engineering
Specification
G
RILLES
:
TYPE A - All steel construction with
horizontal louvres on 8.5mm
centres with a 30° downward
deflection.
TYPE B - Manufactured from
extruded aluminium with vision
proof core.
N
OTES
:
1.
MODE A type of unit provided with
a fusible link set to operate at
72°C.
2.
MODE B & C type of unit provided
with a Thermal Circuit Breaker set
to operate at 72°C.
3.
MODES B & C type of units which
are required for door mounting are
provided with electrical jump loop
to transfer wiring from door to
jamb.
4.
All units provided with 1.6mm mild
steel galvanised sleeve to suit
wall/door thickness.
F
INISH
:
Standard Finish is a PPC satin silver.
Special Finishes are PPC to any stock
BS/RAL colour.
SERIES: SMOKEGARD
Failsafe Closed-
Mode A.................................SG/A
Mode B.................................SG/B
Mode C.................................SG/C
Failsafe Open-
Mode RB.................. .........SG/RB
Mode RC................ ...........SG/RC
SIZE (mm width x Height)
GRILLE FINISH (Please Specify)
NUMBER REQUIRED
STANDARD POWER SUPPLIES:
6 Way..........................................................G6
6 Way c/w output relay................................G6R
12 Way........................................................G12
12 Way c/w/ output relay.............................G12R
REMOTE INDICATORS:
Single unit..............................................SR1
SMOKE DETECTORS:
24V DC wire ionisation...........................SD2
MASTER MONITOR:
1 - 12 unit...............................................SMM1 -12
plus per damper
UNINTERUPTABLE POWER SUPPLIES:
6 Way..........................................................UPS6
6 Way c/w output relay................................UPS6R
12 Way........................................................UPS12
12 Way c/w/ output relay.............................UPS12R
DOOR MOUNTED................D
WALL MOUNTED.................W
WALL THICKNESS (mm)
GRILLE TYPE A or B
SG/A
300 x 200
125T
A
PPC
SATIN
SILVER
(Standard
Finish)
15
W
SMOKEGARD
Door, Wall and Partition Mounting Smoke and Fire Dampers
Gilberts (Blackpool) Ltd reserve the right to alter the specification without notice. For our latest product data please visit www.gilbertsblackpool.com. The information
contained in this leaflet is correct at time of going to press
©
2013.
GILBERTS
Head Office and Works
GILBERTS (BLACKPOOL) LTD
Gilair Works, Clifton Road,
Blackpool.
Lancashire FY4 4QT.
Telephone: (01253) 766911
Fax:
(01253) 767941
e-mail:
Web:
www.gilbertsblackpool.com
