Goetze 481 Manual Del Usuario página 12

b) Damage to seat seal or sleeve
If the secondary pressure of the pressure reducer increases or water discharges at the
upper part of the valve, this may be due to damage to the seat seal and / or sleeve.
Remedial action:
Restore correct operation of the valve byreplacing the valve insert.
If water discharges at the spring bonnet, this may also simply be due to it not being
screwed tight.
c) Scale (furring)
Pressure reducers are always to be installed in the cold water supply of the system.
The distance to the non-return valve must be such that no hot water can be applied
to the pressure reducer, even in the event of the fitting leaking.
If you do not observe this rule during the installation there is a risk of the pressure
reducer liming up.
Remedial action:
Correct the installation arrangement. If this is not possible you must replace the com-
plete valve insert from time to time.
8
according to Annex VII of the Directive 97/23/EC
We, Goetze KG Armaturen, D-71636 Ludwigsburg
declare under sole responsibility that the delivered product:
Pressure-keeping
equipment
Pressure reducing valve
Pressure reducing valve
to which this declaration relates, has been manufactured in compliance with the
Directive 97/23/EC and was subjected to the conformity assessment procedure:
Modul A.
Ludwigsburg, 18 February 2010
(Place and name of issuer)
D. Weimann
Declaration of Conformity
681/481/HP/LP
682/482/HP/LP
Type Nominal width
DN 15 – DN 50
DN 20 – DN 80