ð§ą Can you install the throttle valve in the old building? ? Easy to replace. No need to reboot.
- Hygienic Automatic Device
- Jan 29
- 2 min read
Many organizations that have used the same building for decades often have questions like, "Can an automatic flush valve be installed in an old bathroom? ?â
The answer is "Of course! " And more importantly â no need for a new pipe or tile system. Simply changing the original valve set to an automatic version can improve the cleanliness and image of the building in less than an hour (meaning floating valve flush).


ðŧ Problems with toilets in old buildings
Restrooms in long-used office buildings, schools, factories, or shopping malls often face these common issues:
Manual push-button flush valves break easily or leak continuously
Germs build up from shared contact on the flush button
Unpleasant odors caused by inconsistent flushing
Unnecessary water waste
All of these issues can be solved perfectly with an automatic (sensor) flush valve.
ðĄ What is an automatic flush valve, and why can it be added to existing restrooms?
An automatic flush valve uses a sensor to detect usage and flushes automaticallyâwithout any physical contact.
Newer models from Hygienic are designed with a Retrofit Design, which meansâĶ
It can be installed as a direct replacement for the existing unitâwithout breaking walls or changing piping (for exposed-type flush valves).
It requires only a small power supply from a battery (DC 6V or alkaline batteries) and can operate for over 200,000 cycles per set.
ð§ How can it be installed in an older building?
Installation of an automatic flush valve typically takes only 1â2 hours per unit.
It uses the existing water supply line, so thereâs no drilling and no new piping required. Our technicians simply:
Turn off the water and remove the existing flush valve
Install the Hygienic automatic flush valve as a direct replacement
Test the sensor function and adjust the sensing range for optimal performance
â Benefits of upgrading to an automatic system
Touch-free operation reduces contact and helps minimize germs in restrooms
Cleaner, more modern appearance that enhances your organizationâs image
Long service life (3â5 years)Â with easy battery replacement
Supports hygiene requirements for food factories under GMP / HACCP standards
ð§Đ Recommended models from Hygienic
HAU-001N: For menâs urinals (exposed installation).
Can be installed as a direct replacement for existing units.
Manufactured in the Peopleâs Republic of China.
3-year warranty with on-site service in Bangkok and surrounding areas.

HEU-1000B: For menâs urinals. Featuring a sleek, premium design, suitable for both old and new buildings.
Exposed installation type. Manufactured in South Korea.
3-year warranty with on-site service in Bangkok and surrounding areas.

Both models are moisture-resistant and have been tested to meet international standards.
ð° Summary â Is upgrading to an automatic flush valve in an older building worth it?
The answer is: Absolutely worth it.
Because you can keep the existing systemâno demolition, no replumbingâand simply add automatic sensor technology.
It makes the restroom look and feel newer, helps save water, and reduces cleaning workload over the long term.
If you want to upgrade an older restroom to be cleaner and more modern,
ð Contact the Hygienic team at 02-743-3940 to -1.
ðą LINE Official: @hygienic




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