PART I: SPE
CIFICA
TIONS
8
Overall dimensions (mm)
*DN = gas valves size
*DN A (AS) AA AB
AC AD AE B (BS) BB
C
CC
D
E
F
G
H
J
K
L
M
Omin Omax
P
Q
R
S
U V(**) W
Y
Z
HR75A AB
1.50
1336
69 553 435 28 305
503
374
833
352 1061 700 361 254 270 235 300 503 M10 216
250
233 465 127 338 525
-
658 218 155
1.65
1336
69 553 435 28 305
503
374
833
352 1135 774 361 254 270 282 300 503 M10 216
250
233 535 127 408 565 292 658 218 155
1.80
1336
69 553 435 28 305
503
374
833
352 1135 774 361 254 270 284 300 503 M10 216
250
233 555 127 428 565 310 658 218 155
HR75A PR/MD
1.50
1506
69 553 435 28 305
503
374 1002 352
979
618 361 254 270 235 300 503 M10 216
250
233 465 127 338 525
-
658 218 155
1.65
1506
69 553 435 28 305
503
374 1002 352 1051 690 361 254 270 282 300 503 M10 216
250
233 535 127 408 565 292 658 218 155
1.80
1506
69 553 435 28 305
503
374 1002 352 1051 690 361 254 270 284 300 503 M10 216
250
233 555 127 428 565 310 658 218 155
BB
CC
Z
L
AE
U
E
D
F
W
G
B
Y
AD
AA
C
A
R
S
Q
AB
A
C
J
K
M
H
P
P
N
K
K
O min
O max
O
m
in
O
m
a
x
Burner flange
Boiler recommended drilling tem-
V
**
S
(**) According to the gas train size and the burner type, MB-DLE or VGD valves are supplied. The "V" me-
asure, refers to the gas filter, for burners provided with Siemens VGD valves. MB-DLE valves have a built-
in filter.
