Delta Controls DPR-2000 - Manual (Page 50)

A 48 IOM-DPCDPR-A: FEB 2014
Fig. 19. The explosion - proof joints of DPC...,DPR... transmitters.
Fig. 20. How to lead the casing of DPC...,DPR... transmitters
E
B
A
COVE
EP
T
H
E
H
C
N
W
B
for 1/2NPT
L7
TI G
for M20x1,5
L6
minimum
according to
PN-EN 60079-1:2004(U)
width of joint min.12,5;
gap max.0,15
width of joint min.10
engaged(8)
min.5 threads
min.5 threads
width of joint min.12,5
cemented joints
min.6 threads
engaged(6)
engaged
A
B-B
width of joint
(min. real)
12
13,3
12,7
N°
L7
L8
L6
L5
L4
quantity
1/2NPT 1/2NPT
10
M20x1,5 9 M20x1,5
2
1
2
-0,040 +0,027
M72x1,5
15
M72x1,5
15
-0,070
mm mm
L D
mm
d
2
0,097 2
of joint
mm
D-d
MINIMUM WIDTH OF JOINT AND MAXIMUM GAP FOR GROUP IIC ENCLOSURES
diameter
L2 12,55 3,05 +0,05
-0,05
3 0,15 1 



A-A
L4
L8
L5
L4
L2
R
E
K
I
V
L A
CIRCUIT IS ALIVE
WARNING-
FIELD TERMI
NAL
S
O C
R VE
V
E
TS RC
I U
I
AL
K
P
E
E
W
H
C
N
E
T
I
H
G
T
I
Lock the cover tight by unbolting the screw