Operating Instructions for ERU Knife Gate Valve K1 with FESTO COPAC Actuator
Air consumption at 6 bars supply pressure (theoretical values) in [Nl]
DN 50 65 80 100 100 125 125 150 150 200
Cyl.
Diameter
80 80 100 100 125 100 125 125 160 160
Opening 1,65 2,15 4,24 5,3 8 6,65 10 12,9 20,3 27
Closing 1,75 2,275 4,4 5,5 8,6 6,625 10,75 12 21,15 28,2
DN 200 250 250 300 300 350 400 500 600
Cyl.
Diameter
250 160 250 160 250 250 250 250 320
Opening 67 33,8 83,8 40,5 100,5 117,3 134 167,5 332,4
Closing 68,8 35,3 86 42,3 103,2 120,4 137,6 172 337,8
5 Storage
Store ERU Knife Gate Valves K1 in their closed position. Rubber-coated components,
as e.g. the sealing element between the body parts, have to be protected against
direct solar radiation. Avoid the effects of radiant heat, e.g. from heaters.
6 Installation into the Pipeline - Mounting
Remove all packing material from the valve. Prior to installation, check the pipeline for
impurities and foreign bodies and clean it if necessary.
+There must be free access all around the valve for operation and
maintenance.
In case of flow media containing solid matters as e.g. sand etc. and installation into
horizontal pipelines the stem or the piston rod should not be installed with an
inclination of more than 30º towards the horizontal. Thus, free flushing of the travel
range of the gate is possible.
In case of deviating installation positions, especially with suspended stem or piston
rod, deposits around the gate have to be expected. This could lead to mal-functions
which increase maintenance work.
During installation of the valve, the distance between the pipe flanges should exceed
the valve face-to-face dimension by at least 20 mm. Thus, the raised faces will not be
damaged and the gaskets can be inserted. Steel-reinforced rubber seals to DIN 2690
BA46E032
August 2003
Rev. 5
ERHARD-Armaturen xD-89502 Heidenheim xPostfach 1280
(07321) 320-0 (07321) 320 491 e-mail:info@erhard.de
Internet: http://www.erhard.de
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