Maintenance - Eaton DB3B Mode D'emploi

Sounder - DB3B
English
General arrangement

5.0 Maintenance

During the working life of the unit, it should require little or no maintenance. GRP will resist attack by most acids, alkalis
and chemicals and is as resistant to concentrated acids and alkalis as most metal products.
However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visual
inspection is recommended.
See below diagram for details of the flameproof joints found in the unit. WARNING! – The flameproof joints detailed
below are not intended to be repaired.
FLAMEPATH - 9.5 MIN.
INSIDE SCREW HOLES
Ex d COVER/ENCLOSURE
FLAMEPATH
8
Sounder - dB3B
Ex d LONG FLARE VERSION
WITH STANDARD BRACKET
64.5 1 (POS. 1 & 2)
68.0 1 (POS. 3)
POS. 1
19°
POS. 3
19°
POS. 2
2 ENTRIES MAX.
185 ±2
Ex de SHORT FLARE VERSION
WITH OPTIONAL SWIVEL BRACKET
230 ±2
30°
30°
2 ENTRIES MAX.
FOR Ex d UNIT, POSITION 3 IS USED IF ONLY
1 x M20 or 1 x 1/2" NPT ENTRY IS REQUIRED
ALL DIMENSIONS ARE COMMON TO ALL UNIT VARIATIONS UNLESS OTHERWISE STATED
ALL DIMENSIONS ARE IN MILLIMETRES
TM264 July 2020 www.eaton.com
280 ±3
208 3 FOR SHORT FLARE VERSION
75.90 ±2
FIXING HOLE
FIXING HOLES
13 ±1
9 ±1
2 POSITIONS
255.5 3
323.5 3 FOR LONG FLARE VERSION
37 ±1 147.5 2
25°
9 ±1 TYP.
18 MIN. WALL THICKNESS
UP TO 2 POSITIONS
CABLE ENTRY
DETAIL
25°
GLAND ENTRY