From mechanic switches to electronic shut-off valves – Here’s all you need to know about dishwasher valves

Mechanic and electronic dishwasher valves. What’s the difference and what does that mean for your installation? 

In multiple European countries, it has become mandatory to guarantee secure and visible shut-off valves. That's why many modern faucets integrate dishwasher valve functionalities that are built into the fitting – via mechanical switches on the faucet or an electronically operated push button.  

Find out about the main differences between mechanical and electronic dishwasher valves and learn how you can ensure a quick and smooth installation.

From separate units to integrated features

Originally, shut-off valves would be installed as a separate valve under the sink [double spindle angle valve].  

This setup, however, is quite impractical for both installers and end users as access under the sink is limited and doesn’t allow for much space to move around.  

Mechanical dishwasher valves – Relocating the shut-off switch onto the faucet

That’s why, as a first innovation step, many modern faucets feature a third connection hose leading from the fitting to the dishwasher.  

Featuring a mechanical shut-off valve, they open and close the ceramic sealing disks through an integrated switch (see numbers 9 and 10 in image below). 

Example: HANSAMIX (01152283)

What to keep in mind for installation? 

There may be different connection sizes ½" & ¾", depending on which country you’re located in. 

What’s the main advantage? 

This setup allows you to conveniently switch the water supply on and off – without having to crawl underneath the sink. 

Electronic shut-off valves via one simple “push” 

A new generation of electronically operated faucets allows users to send an impulse via a simple "push button" on the electronically operated solenoid valve (see images below)   

Number 11: Push-button                     Electronic shut-off valve                Hansa Designo Style Comfort+ (Art.nr.51372283 /3031)

What to keep in mind for installation? 

Keep in mind that this variant requires additional cables to ensure a stable power supply – either via a power unit supply, if a socket is available, or a battery-powered control unit.  

It also requires you to attach an electronically controlled solenoid valve onto the cold-water inlet before the connection hose/pipe continues. 

What’s the main advantage? 

The electronic valve closes automatically after each flushing interval and allows you to individually set the opening time of the valve according to your preferences. 

For faucets with an electronic dishwasher valve or solenoid valve, make sure to install a fine filter to protect the solenoid valve. A filter is included in your product package. 

At HANSA, we continuously examine smart and convenient extra functionalities as part of our product development. 

Check your country’s building requirements: