EXPO MiniPurge D808/ET, Manual

Page: 29 / 36

RECOMMENDED
MINIMUM
SIZE
F
OR
PURGE
AIR
DISTRIBUTION
PIPEWORK
OPEN
PURGE
OUTLET
VALVE
CONTROL
SIGNAL
LOW
PRESSURE
ALARM
INTERMEDIATE
PRESSURE
SUPPLY 4.2
-
8
barg
(61
-
116
psi
)
INSTRUMENT AIR/INERT
GAS
2"
[50mm]
I.D.
MINIMUM
2"
NPT
*
PI
MINIPURGE
CONTROL
LOGIC
PURGING/
PURGE
COMPLETE
XI
XC
2"
[50mm]
I.D.
MINIMUM
2"
NPT
*
D.P.
L
O
F
ROM
RELIEF
VALVE
D.P.HI
F
ROM
RELIEF
VALVE
1/8"
NPT
1/8"
NPT
1/8"
NPT
MOTOR
INTERLOCK
MINIPURGE
SYSTEM
ENCLOSURE
PAL
ALARM
/
PRESSURIZED
SYSTEM
PURGING
(OPTIONAL)
ELECTRICAL
SIGNAL
VIA
JUNCTION
BOX
OPTIONAL
1/8"
NPT
RELIEF
VALVE
ASSEMBLY
MOTOR
ENCLOSURE
1/8" NPT
1/8" NPT
1/4"
[6mm]
I.D.
1/4"
[6mm]
I.D.
1/4"
[6mm]
I.D.
1/8"
NPT
TEST
POINT
NORMALLY
PLUGGED
FLATNESS
TO
BE
LESS
THAN
0.4mm
OVER
ANY
100mm
LENGTH
UNSPECIFIED TOLERANCES
MATERIAL
DR'WN
APP'D
CHK'D
DRAWING
STATUS:
APPROVED: MOD.
No:
DATE: ISSUE:
3rd
ANGLE
PROJECTION
DIMENSIONS
IN
m
m
DO
NOT
S
CALE
Expo
Technologies
Limited
JOB
No:
FINISH
TITLE
CUSTOMER:
SHEET
No.
OF
SURREY
TW16
5DB
UNITED
KINGDOM
DRAWING
No.
SCALE
The
contents
o
f
this
drawing
/
document
are
Copyright
ã
Expo
Technologies
Limited.
They
are
to
be
treated
as
confidential
and
are
returnable
upon
request.
T
hey
are
not
to
be
copied
or
communicated
in
part
or
in
whole
without
written
consent
from
Expo
Technologies
Limited,
neither
are
they
to
be
used
in
any
way
against
our
interests.
NO
DEC
P
LACE
±0.5
1
D
EC
PLACE
±
0.2
2
D
EC
PLACE
±
0.1
H
AUTOMATIC
PURGE
VALVE
INTERMEDIATE
LOW
PRESSURE
PAL
1/8"
NPT
PRIMARY
ENCLOSURE
PRESSURE
1/4"
[6mm]
I.D.
HIGH
PRESSURE
(OPTIONAL)