17(33)
User manual in Original
Dok. ref: User manual 500A-BS Rev. C
DISPERATOR AB
Tel: +46 8 724 0160
E-mail: info@disperator.se
Mälarvägen 9, SE-141 71 Segeltorp, Sweden Fax: +46 8 724 6070
Web page: www.disperator.se
6.2.
Flushing Water
Connection of the flushing cold water to the delivered disposer must be done by an authorized
installer of water supply and in accordance to valid local regulations.
6.2.1.
Water Pipe ½”
In order to allow a free flow of water to the disposer, the incoming water pipe (incl. accessories in the
piping system such as vacuum valve, cut-off valve etc.) must have the same dimension as the
connection to the disposer assembly, i.e. at least ½” through-out. No throttling may exist up to the
solenoid valve.
6.2.2.
Line Strainer and Solenoid Valve ½”
The line strainer ½” must be mounted before the solenoid valve ½” in the flow direction on the cold
flushing water feed. Make also sure that the line strainer and the valve are mounted in the correct
flow direction (see arrow on these components), and that the nut on the strainer (to be opened when
cleaning the strainer) is directed downwards.
6.2.3.
Flushing Nozzle in Sink or Flush Pipe/Tower with Air Gap to Sink
When a flushing nozzle is fitted in a sink/washing line, position the nozzle as high up as possible and
above the spillway. Place the flushing nozzle as far from the inlet to the disposer as possible. This will
allow for a larger flushing area in the bottom of the sink basin. For further information see section
6.2.5. ”Vacuum Valve”.
If required by local regulation a flush pipe or flush tower with air gap to the sink can be ordered fom
Disperator as an optional extra.
6.2.4.
Reinforced Flexible Hose ½” for Flushing Water
As shown in figure below, a reinforced flexible hose ½” must be fitted between the incoming water
pipe mounted on the wall/bulkhead, and the connection for flushing water on the disposer assembly.
The hose absorbs the compressive push in the pipe when the flushing water is turned on, and absorbs
any small vibrations which may occur during the grinding process of the disposer. The hose is not
included in standard delivery but is available as an option.from Disperator
6.2.5.
Vacuum Valve (back flow preventer)½”
When a flushing nozzle is fitted in a sink/washing line or other type of assembly, a vacuum valve must
be installed at the top of a lyre-shaped incoming water pipe, as shown in figure below. This protects
the water pipe from re-suction during a possible overflow in the sink. The vacuum valve is not included
in standard delivery but is available as an option. When a flush pipe/tower with air gap to
sink/washing line, or other type of assembly, is fitted, no vacuum valve is needed (if not stated for
other reasons and/or specified in national/local regulations).
The picture above shows the positioning of a vacuum valve
above a standard disposer sink assembly.
Vacuum valve
Incoming cold water pipe,
with solenoid valve and
strainer
Reinforced flexible hose
