Flowserve EV 30 - Manual (Page 13)

13
Design
EV 30 DN 125 mm type F
■ Bottom valve UV 70 for DN 125 and 150 mm
■ Valve mounting flange EV 30 for DN 150 mm
■ Operating mechanism BV 50 DN 125/150 mm
EV 30 DN 80 mm type G
■ Vent valve LV 50 DN 80 mm
■ Flanged pipe socket for mounting LV 50
■ Vacuum breaker fitted with swing check valve and flame arrestor
Materials
■ Carbon steel or austenitic steel for corrosive fluids
General Technical Data
Type approval no.
EV 30 type F
TÜ.AGG.276.97
LV 50 TÜ.AGG.277.97
Temperature/pressure ratings
Max. service pressure:
3 bar g (43.5 psig)
Max. service temperature: + 150 °C (302 °F)
Min. service temperature:
– 10 °C (14 °F) as defined by the German Technical
Directives for Tanks TRT 024
Technical Data of Bottom Valve UV 70
Spring forces
Position
OPEN
1150 N
Position
CLOSED
700 N
Valve lift
Completely open:
37 mm, limited by stop
Safety distance between tappet and valve
2 mm
Technical Data of Vent Valve LV 50 DN 80 mm
Closing force: 140 N
Technical Data of Swing Check Valve Fitted in FV 10
Opens at a negative pressure of 0.07 bar g (2.17 psig)
Technical Data of Hand Lever
Manual force required for opening
Without pressure: 56 N
At test pressure 4.5 bar g (65 psig): 180 N