Operating Instructions for ERU Knife Gate Valve K1 with electric actuator
Product No.
Nominal
diameter
DN
Nominal
pressure
PN
Hydr. test pressure in bars
for
Body Seat
Max. admissible
working pressure in
bars at a working
temperature of
max. 70° C
4655, 4656
4657, 4623
50 - 300
50 – 300
10
10
15
15
10
10
10
10
If EPDM profile seals are used for the ERU Knife Gate Valves K1, the parts of EPDM
must not get in contact with oil or grease, as the EPDM would swell.
For a recommended lubricant see section "Maintenance".
ERU Knife Gate Valves K1 of this design are suitable for "ON-OFF" operation.
For explicit regulating service, special designs have to be used, e.g. design with
regulating orifice.
BA46E033
July 2005
Rev. 4
ERHARD-Armaturen
x
D-89502 Heidenheim
x
Postfach 1280
(07321) 320-0
(07321) 320 491 e-mail:info
@
erhard.de
Internet: http://www.erhard.de
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