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1. General
Dear Customer,
Before installing and commissioning this
KESSEL Staufix SWA or Controlfix , plea-
se thoroughly read through this manual
and follow all instructions!
Please make sure that nothing was dama-
ged during the shipment of this item. In case
damage did occur during the shipment plea-
se go to Section 5 - Guarantee
1.1 Application of the
Staufix SWA
The KESSEL Staufix SWA backwater valve is
designed to be installed in wastewater draina-
ge pipes with or without raw sewage. The
backwater valve prevents wastewater from
backing up the drainage pipe during backwa-
ter / flooding. The SWA should be kept in good
operating condition and should be accessible
at all times. During normal conditions the back-
water flap is in the vertical, free handing posi-
tion. Wastewater draining out of the building
pushes the flap open and is allowed to flow
through the SWA and out of the building. The
SWA is equipped with a manual flap locking
valve which can be used to fully lock the flap
shut – allowing no wastewater in either direc-
tion to pass through the valve. In the case that
the drainage pipes connected to the Staufix
SWA will not be used over extended periods of
time it is recommended that the flap is secure-
ly locked with the locking lever. Important is
that when the wastewater pipes return to ser-
vice that the flap is unlocked. DIN EN 12056
and DIN EN 13564 should be followed which
regulated the drainage of building and use of
backwater valves.
1.2 Application Controlfix
The KESSEL Controlfix serves as the body
housing for all KESSEL Staufix and Pumpfix
series backwater valves. The following instal-
lation instructions should be heeded. Since the
KESSEL Controlfix serves as a cleanout or ac-
cess to the drainage piping, the Controlfix
does not contain any backwater flaps and thus
does not offer any protection against backwa-
ter. Upgrade packages are available that can
be used to upgrade the Controlfix to any KES-
SEL Staufix or Pumpfix backwater valves.
1.3 Contents of Delivery
The Staufix SWA delivery consists of a body /
housing with cover including the emergency
closure lever (closure lever not included with a
Controlfix ), and installation and operating ma-
nual (Article Number 010-841) and a see-thru
test funnel used for testing the valve after in-
stallation (test funnel not included with a
Controlfix ).