The drain valves

what they are and how they work and operate

faucet unloaded

The drain valves of the hydraulic system are special faucets operated by a square pin.

These can only be operated by special keys, for security reasons.

These valves are used to close a part of the system, allowing it to be emptied "unloaded" for these are called discharge.

Plumber

Install the sink

Plumber

Stop taps

Plumber

Thread the iron pipes

Plumber

Frozen pipes

Plumber

Geberit pipes

Plumber

Install external duct

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