1. General
13
GB
1.1 Use
The KESSEL backwater valves are intended for
installation in gravity fed wastewater pipes.
The KESSEL backwater valves must be kept in
good working order at all times and be easily
accessible. The flaps are normally closed and
open automatically to allow outflowing water to
pass.
The double and single flap lockable backwater
valves have a manually lockable flap as an emer-
gency stop. This enables the valve to be opened
and closed manually. If out of operation for a pro-
longed period, the emergency flap should be kept
closed.
The single flap backwater valve does not have
the manual locking capability.
1.2 Construction
The KESSEL
Staufix
®
double flap lockable
backwater
consists of the
body
cover with hand lever for emergency closure
insert housing with flap
second flap
Both single flap backwater valves can be conver-
ted to double flap backwater valves in accordan-
ce with EN 13564 type 2 (see Chapter 5).
The KESSEL
Staufix
®
single flap lockable back-
water valve
consists of the
body
cover with hand lever for emergency closure
insert housing with flap
The KESSEL
Staufix
®
single flap backwater
valve
consists of the
body
cover
flap
1
Only the double flap lockable backwater valve
meets EN 13564 type 2 and offers additional
security due to the double flaps.
2. Installation
Each device is supplied ready for operation and
need only be installed in a gravity fed wastewa-
ter pipe.
2
3
3. EBA englisch neu 7:3. EBA englisch
26.11.2009 11:23 Uhr Seite 3
