BOA
R
-R
2
Working pressures
Nominal
Material
Body pressure
Seat leakage
Pressure/Temperature ratings
3
)
4
)
pressure
test with water
Body
1
)
Seat
2
)
PN
--10 up to +120
200
250
300
350
6
EN GJL 250
9
7,6
6
5
5
5
--
16
EN-GJL-250
24
17,6
16
12.8
11.2
4
) 9.6
4
)
--
16
EN-GJS-400-18-LT
24
17,6
16
14.7
13.9
4
) 12.8
4
) 11.2
1
) DIN 3230-BQ (ISO 5208)
2
) DIN 3230-BN/leak rate 1 (ISO 5208/
rate A
)
3
) For intermediate temperatures use linear interpolation.
4
) Static loading
Please note: DIN EN 1092-2, para. 5.3, AD W7, TRD 106 and plant-specific regulations must be observed when selecting
connecting elements between the valve flanges and the pipeline flanges.
Materials
Part no.
Name of parts
PN
DN
Material
Material no.
100
Body
6/16
15-300
EN-GJL-250
JL 1040
100
Body
16
15-350
EN-GJS-400-18-LT
JS 1025
161
Body cover
6/16
15-300
EN-GJL-250
JL 1040
161
Body cover
16
15-350
EN-GJS-400-18-LT
JS 1025
6
15-175
X 20 Cr 13
1 4021
351
Check cone
16
15-175
X 20 Cr 13
1.4021
351
Check cone
6
200
St, seat X 15 CrNi 18 8
1.4301
16
200-350 Guide pin X 20 Cr 13
1.4021
411
Gasket
CrNiSt-graphite
515
Seat ring
X 20 Cr 13
1.4021
902
Stud
250-300 CK 35 V for EN-GJL-250
902
Stud
15-350
CK 35 V for EN-GJS-400-18-LT
920
Nut
15-350
C 35
950
Spring
X 12 CrNi 17 7 (1.4310)
1.4310
