Fixed water connections as reliable technology for commercial coffee machines

Coffee machines are technologically advanced devices that combine quality and hygiene with high-quality, reliable components. Innovations such as fixed water connections ensure consistent coffee quality and efficient continuous operation. Read more about the function and safe components in commercial coffee machines here.

From the Ethiopian highlands to a global cult drink

Coffee originated between the 14th and 15th centuries in the Kingdom of Kaffa in Ethiopia. According to a legend recorded on paper, shepherds noticed that goats that had eaten from a bush with white flowers and red fruits were jumping around energetically into the night, while the other animals were tired. In the 16th and 17th centuries, the drink spread via Persia and Syria to Europe via Turkey. According to estimates, around 2.5 to 3 billion cups of coffee are drunk worldwide every day. Coffee is the most widely consumed beverage in the world after water.

Coffee machines for commercial and private use employ high-quality components and materials that are approved for contact with water, coffee and milk and meet the highest hygiene standards.

Fixed water connection

Commercial coffee machines with a fixed water connection draw water continuously from the water supply. This ensures reliable continuous operation at all times in restaurants, hotels, offices or care facilities with frequent brewing cycles and stable pressure conditions and temperatures. Commercial machines with a fixed water connection use non-return valves or check valves in conjunction with fixed pressure regulators.

To the assembly fixed water connection in detail

Solenoid valves

Solenoid valves control the flow of water or steam for coffee or beverage preparation. Solenoid valves must meet particularly high reliability requirements in terms of tightness and switching cycles. Solenoid valves are available in brass or stainless steel. Many different sealing materials such as EPDM, Viton and PTFE are possible.

To the solenoid valves

Hoses for food applications are usually made of PTFE or PFA

Hoses that are approved for high temperatures and contact with food are also used in coffee machines. Hoses for food applications are usually made of PTFE or PFA.

To the hoses

Pressure gauges

Pressure gauges are used in the brewing circuit to monitor the pressure between 8 and 10 bar during coffee preparation. The pressure gauges usually have a diameter of 40-50 mm. The pressure connection can be made of brass or stainless steel. The pressure gauges are often customised with the coffee machine manufacturer's customer logo according to customer requirements.

To the pressaure gauges in detail

Screw connections

Screw connections ensure a tight seal between the tank, brewing units, boiler and pump, meet hygiene requirements and withstand varying pressure and temperature conditions.

To the screw connections

Did you know that...

Switzerland is one of the most important global trading centres for coffee? According to estimates, around 60% to 70% of global coffee trade passes through Switzerland.

the world's first fully automatic espresso machine for home use was developed by a Swiss company? It was launched on the market in 1985.

Switzerland is one of the world's leading countries in the development and manufacture of fully automatic coffee machines for the hospitality industry and home use? Swiss companies are among the best internationally and shape the market technologically.

What does a fixed water connection do in a coffee machine?

A fixed water connection connects the coffee machine directly to the drinking water pipe so that it draws water continuously from the water supply without having to fill a water tank manually. This ensures that the machine is always supplied with fresh water. The connection also ensures a steady supply of water. In technical components, such as those implemented by TRI MATIC in individual assemblies, the fixed water connection is designed to prevent pressure surges, overpressure and backflow into the drinking water network.

How does a fixed water connection work in a coffee machine?

A fixed water connection works as follows:

  • Direct connection: The coffee machine is connected directly to the drinking water pipe via valves.
  • Pressure regulation: A pressure regulator is used to ensure that the water in the machine is available at the correct pressure. This ensures that the water pressure remains within the permissible range and that no pressure peaks or surges occur.
  • Check valve: A check valve is integrated into the assembly to prevent water from flowing back from the machine into the drinking water network.
  • Automatic supply: When fresh water is required, the machine releases the solenoid valve and draws the required amount directly from the water connection. This ensures that fresh water is always available for coffee preparation.

Commercial coffee machines: a combination of powerful components, precise technology and centuries-old tradition

Commercial appliances with a fixed water connection enable continuous operation in restaurants, hotels, offices and care facilities. Solenoid valves, hoses, pressure gauges and screw connections ensure safety, hygiene and optimal preparation. Contact us by telephone at +41 41 780 22 22 or info@tri-matic.ch for comprehensive advice from our experts.

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