Areas of application for our non-return valves

Waste management	Foot valves and pump systems	Petrochemical industry
Plant construction	Geothermal energy	Pharmaceutical industry
Fittings	Drinks	Pneumatic systems
Building protection	Groundwater pumps	Process technology
Ventilation valves and systems	House installation	Pumping stations
Mining	Heating installations	Pipeline construction
Irrigation	Hydrants	Defense industry
Irrigation systems	Installations	Sanitary facilities
Biogas plants	Air conditioners	Rail transport
Biopharma	Compressors	Shipbuilding/Navy
Biotechnology	Cosmetics	Security and defense technology
Boiler hot water treatment	Cooling water systems	Solar technology
Fire protection systems	Agriculture	Power generation
Brewery	Food industry	Textile industry
Chemical industry	Aviation refueling	Drinking water
Chemical apparatus and plant engineering	Navy	Process engineering
Data Center Security	Medical technology	Combined heat and power generation
Compressed air systems	Sea, lake and river water catchment	Heat pumps
Energy technology	Seawater desalination	Washing machines
Edibles	Military industry	Water and flow meters
Fire department	Mobile water catchments	Water treatment
Firefighting equipment	Dairy	Water supply
Filtration systems	Nuclear and gas-fired power plants	Waterworks
Fish farming	Oil & Gas	Cellulose and paper
Airport operations services	Onshore &Offshore	Sugar industry

The Stop Silent multi-cone valve - In action since 1963

Installed then... forgotten! In 1963, the water su... read more

Reservoirs case study: non-return valves for water supply

In the water supply, the flow direction is defined by check valves. Also for accurate water measurement, this is important for water suppliers to rely on the reliable StopSilent preventer’s valves.

The Stop Silent non-return valve used by the fire brigade

Case study: the hydrant connection of Aquaform Ltd... read more

Water supply of the city of Zürich

Since 1976, the City of Zurich Water Department has been using Lasso Technik’s Stop Silent® check valves to efficiently manage the city’s water supply. The engineer in charge of distribution, Mr. Arnold Egli, has confidence in this valve. In the event of a pipe failure, Mr. Egli knows that the pipe system will not be damaged.

Novartis

In the former Ciba group, the chief engineer of the equipment department uses the Stop Silent® valve for the most diverse applications in chemical equipment and in the field of energy (hot and cold).

Thanks to our stainless steel cone with a special Halar coating and Hastelloy screws, it was possible to find a very cheap solution. This cone is successfully used in chemical industrial waters.

Water pumps

The “Oasis” wind turbines pump water to a depth of 40 m. The Stop Silent® foot valve is one of the key components of this pump. Thanks to the flexible elastomer membrane, waterproofing is ensured even if granules such as sand are placed between the cone and the membrane.

Chocolate factory „Ludwig“

The engineer Mr. Hollinger is in charge of the production of pralines.

In the past, production was often interrupted because the mechanical valves used blocked under the sticky mass. The costs of maintenance and cleaning became significant. A solution had to be found to remedy these frequent and costly interruptions.

With the Stop Silent® check valve, production could be carried out continuously.