Instruction Manual

Series BVA/F, BVAP/F , ASME Page 5
9520-085-en_USA Revision 10
TM 8361 Edition 10/2011
1.3 Breakaway torques
Test medium: water 68 °F (20 °C)
Higher breakaway torques may occur with other
media.
PFA lined ball/stem unit
DN
p in psi
D 45 85 145 250
max.
adm.
[inch] [in-lbs] [in-lbs] [in-lbs] [in-lbs] [in-lbs]
1“ 71 71 71 89 620
1½“ 177 177 177 221 1990
2“ 221 221 221 266 1990
3“ 221 221 221 266 1990
4“ 443 443 549 735 4425
6“ 708 708 814 1062 4425
Al
2
O
3
ceramic ball
DN
p in psi
D 45 85 145 250
max.
adm.
[inch] [in-lbs] [in-lbs] [in-lbs] [in-lbs] [in-lbs]
1“ 89 89 89 106 283
1½“ 177 177 177 221 708
2“ 221 221 221 266 1060
3“ 221 221 221 266 1060
4“ 531 531 637 841 2215
6“ 797 1151 1328 1770 3100
1 in-lb = 0.112 Nm
1.4 Flow values
Nom. size kv
100
Cv
[inch] [m
3
/h] [US gpm]
1“ 60 70
1½“ 190 221
2“ 280 326
3“ 587 684
4“ 1250 1456
6“ 2800 3262
1.5 Pressure-temperature-diagram
When used in the area of application of ASME,
the low temperature of ASTM A395 is limited to -20°F
(-29°C).
When used in the minus temperature range, the
regulations applicable in the country in question must
be observed.
A special material is used for the ball/stem
unit and stem for operating limits under
+ 14° F to – 20 °F (– 10 °C to – 29 °C).
According to ASME B 16.42
Ball/stem unit
Al
2
O
3
ball