Richter BVA/F Series, Инструкция по установке и эксплуатации

Страница: 5 / 30

Series BVA/F, BVAP/F to ASME
Page 5
9520-036-en Revision 19
TM 10477 Edition 05/2022
1.4 Actuating torques
Test medium: water 68 °F (20 °C)
Higher actuating torques may occur with other media.
PFA lined ball/stem unit
DN
Δ
p in psi
≤
45 85 145 250
max.
adm.
[inch] [in-lbs] [in-lbs] [in-lbs] [in-lbs] [in-lbs]
1“ ,
1½“ red.
71 71 71 89 620
2“
221 221 221 266 1990
3“ red.
221 221 221 266 1990
4“ red.
443 443 549 735 4425
6“ red.
708 708 814 1062 4425
Al
2
O
3
ceramic ball
DN
Δ
p in psi
≤
45 85 145 250
max.
adm.
[inch] [in-lbs] [in-lbs] [in-lbs] [in-lbs] [in-lbs]
1“ ,
1½“ red.
89 89 89 106 283
2“
221 221 221 266 1060
3“ red.
221 221 221 266 1060
4“ red.
531 531 637 841 2215
6“
red. 797 1151 1328 1770 3100
1 in-lb = 0.112 Nm
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.
According to ASME B 16.42
PFA lined ball/stem unit
Al
2
O
3
ceramic ball