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Stop Silent® SL13 (formerly Light)

Information document
Case studies, checklist, installation instructions
Flap valve - Keep vermin out
Small animals entering pipe systems. An annoying problem that can be reliably and permanently solved with a Stop Silent® SL13 backflow preventer.
Checklist before installation
To order the right product, it is important to tell us the size (internal diameter) of the pipe to be secured.
Invitation to tender text
The Stop Silent® SL13 backflow preventer consists of a high-quality elastomer membrane. This membrane is shaped for optimum flow and safe absorption of the backwater pressure.
Wartung Rückstauklappe
Backwater flap maintenance form
Mounting in oval tube
Lasso Video SL13
Active backwater protection
Cellar under water? Avoid costly renovations of damaged premises.
Bad smells
As the check valve diaphragm is constantly closed, it provides a reliable seal against bad odours that try to circulate in pipes.
Avoid flooding of streets
Protect your pipes from sewer backups to prevent street flooding.
Installation guide
Stop Silent® SL13 can be installed both at the inlet and outlet of the inspection chamber.
Mounting Instructions-Adapter
Adapters can be supplied for intermediate dimensions.
Wastewater data sheet

Stop Silent®

Exemples of application
Some examples where Stop Silent® valves are in use: City of Zurich water supply, Novartis, water pumps, "Ludwig" chocolate factory.
Stainless steel cone & rubber diaphragm
Hard shell, soft core, stainless steel valve cone and high-quality rubber diaphragm: the harmonious interplay of the two main players in Stop Silent®.
Sample tender text
The Stop Silent® backflow preventer consists of a high-quality elastomer membrane and a perforated stainless steel support cone.
Multi-cone valve
Efficient production of cold water with minimum pressure loss.
Case studies: reservoirs
At the pumping station of the largest freshwater source in Basel-Landschaft: a visit to the installation of a Stop Silent® non-return valve.
Information document
Features: Valve to prevent backflow of liquid and gaseous media.
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Lasso Technik AG
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+41 61 331 40 90
lasso@lasso.ch
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