9
Double Seal Butterfly Valve
DSV
Operating Manual: rev. 2
7. Technical Data
- max. line pressure DN 50-125/1”-4” : 10 bar
- max. operating temperature : 135
o
C EPDM, HNBR
- short-term steam load : 140
o
C EPDM, HNBR
- opening angle butterfly valves : 90
o
- min. control pressure : 6 bar
- max. control pressure : 10 bar
- air connection (for hose) : 6 x 1
- cleaning connection : R1/4”
(use dry and clean pneumatic air, only)
- valve disc 1.4462 / 1.4404
- housing (not product-wetted) 1.4301
- mating flange - DSV
DN 50 - 100 1.4404
- DSV seal
standard: EPDM
option: HNBR
- bush bearing Cu
- yoke, actuator 1.4301
- coupling 1.4301 / 1.4308
- piston polyacetal POM
- spindle bearingr polyamid PA 12
- air connection polyamid PA 6.6
DN 50-65 / 2”-3”
pneumatic air consumption
at 6 bar control pressure
turning actuator K 080 (F/L) (spring/air)
per movement 1,8 (NL)
closing times in sec.
hose length 1m 10m
2,5 sec. 4,2 sec.
DN 80-125 / 4”
pneumatic air consumption
at 6 bar control pressure
turning actuator K 125 (F/L) (spring/air)
per movement 5,5 (NL)
closing times in sec.
hose length 1m 10m
5,5 sec. 8 sec.
8. Materials
UK
DSV-UK2.qxp / 10.2005