
12
Pressure/Temperature Ratings of Bottom Valves
Nominal pressure PN [bar]
25
Test pressure [bar]
37.5
Temperature range for valve plug seal CR [°C] – 40 to + 50
Temperature range for valve plug seal PTFE [°C] – 50 to + 50
Connection of bottom valve body
Socket-weld ends for manifold
with O. D. 88.9 mm
Spring pressure on valve plug [N] 322 ± 30
Lift of valve plug [mm] > 21.2
Drag coefficient
ζ
Loading Unloading
3.3 2.8
Explanatory Notes – continued –
Technical data – continued –
Item no. Component Material
– Body 1.0566
b
Hexagon head cap screw M16 A2-70 or A4-70
$
Hexagon head cap screw M12 A2-70
7
Seat flange 1.4571
e
Valve plug 1.4571
f
Compression spring 1.4310
3
Spring plate 1.4301
4
Stay bolt 1.4301
0
Bellows, complete 1.4541 and 1.4571
68!
Gasket PTFE
Valve plug seal PTFE or CR
c
Socket-head cap screw A2-70
()
O-ring NBR 70 Shore
5
Sleeve 1.4313
31
Weight [kg] HWV 205/1 HWV 215/1 BV 110
Body 20 20 –
Valve head
9 9 –
Hydraulic actuator
7 7 –
Control unit
– 3 –
Total 36 39 2 x 16
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