Lima Solid Brass In Wall Mixer Control Valve for Fontana Shower control valve in wall shower set
The Fontana shower valve serves two essential functions: controlling water temperature and flow. By mixing hot and cold water from your supplies in different proportions, it maintains the desired temperature, typically with a single control. The valve also regulates water flow, directing it to one or more outlets using flow controls and/or diverters.
Key Features of the Fontana Shower Valve:
- Temperature Control: Mixes hot and cold water to achieve the desired temperature.
Usually operated with a single control.
Flow Control:
Regulates the water flow rate from full off to full on.
Supplies water to a single outlet or multiple outlets using diverters.
- Types of Shower Valves:
Single Outlet Valves:
Control water flow to one outlet, such as an overhead shower.
Two Outlet Valves:
Direct water to two outlets, such as an overhead shower and a slide rail.
Use a 2-way diverter to switch between outlets.
- Three Outlet Valves:
Manage three outlets, like an overhead shower, a slide rail, and body jets.
Can operate all outlets simultaneously or individually.
Types of Controls:
Twin Shower Valves - One Way:
Two controls: one for temperature and one for flow.
Supplies water to a single function (e.g., overhead shower or slide rail).
Twin Shower Valves - Two Way:
Two controls: one for temperature and one diverter.
Switches water between two functions but cannot operate both simultaneously.
Triple Shower Valves - Two Way:
Three controls: one for temperature and two for flow.
Independently controls two outlets, allowing simultaneous operation.
Triple Shower Valves - Three Way:
Three controls: one for temperature, one diverter, and one flow control.
Can switch between three functions, with independent control for the third outlet.
Installation Types:
Concealed Shower Valves:
Only the controls are visible; pipes and outlets are hidden inside the wall.
Exposed Shower Valves:
All components, including pipes, are visible on the wall's surface.
Valve Types:
Thermostatic Shower Valves:
Include anti-scalding features that shut off water if it gets too hot.
Manual Shower Valves:
Require manual adjustment for temperature control without anti-scalding features.
Considerations for Installation:
Inlet Spacing and Diameter:
Ensure the spacing and diameter of inlets match your existing setup, especially for exposed valves.
Minimum Water Pressure:
Check the valve’s pressure rating to ensure it meets your water pressure levels, which may require a pump for optimal performance.
Balanced Water Pressure:
Hot and cold inlets should have approximately equal pressure, potentially needing a pressure reducing valve.
Non-Return Valves:
These should be fitted to prevent backflow, with some manufacturers including them in the valve set.
Common Issues and Solutions:
Casting Faults:
Rare, but if present, will be noticeable immediately and can be replaced under warranty.
Faulty Cartridge:
The most active part of the valve; if it fails, it can be replaced easily, often under warranty.
Cartridge Calibration:
If the water doesn’t get hot enough, the cartridge setting may need adjustment.
By following these guidelines, you can ensure the optimal performance and longevity of your Fontana shower valve. For any issues or further assistance, contact our support team.

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