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AMERICAN
AMERICAN
American Faucet & Coatings Corporation
Sigmatherm
Technical Information
The Sigmatherm Thermostatic Valve is designed to operate at water pressures as low as
14 psi and as high as 140 psi. If you have lower or higher pressure please consult the
factory representative for suggestions or solutions.
1/2", 3/4", and 1" units are most commonly used for the deluxe shower, suite, or
residential bath. Two or three bath components are often combined (i.e. hall bath, kids'
bath, and guest all combined).
1-1/4", 1-1/2", and 2" units do not come with decorative trim, as these valves are very
large and require easy access to install and use. Call for further details.
Important: All main lines must be the same size or larger than the supplied valve or the
based on a minimum 1-1/4" line--absolutely no smaller restriction should be allowed.
Water Supply
Sigmatherm valves can be supplied from any hot water production system, even by
instantaneous domestic production, as far as the generator is capable of supplying very
small quantities of hot water (about 0.8 gal/min).
- Maximum working pressure
145 PSI
- Minimum working pressure
14 PSI
- Recommended working pressure
29 to 58 PSI
- Maximum test pressure
224 PSI
- Maximum hot water temperature
185° F
Options
'Reverse' cartridges are available to correct improper installation (this special order is
an extra charge and could take 12 weeks for delivery).
Shut-Off Valves
The mixer itself determines the proportions of hot and cold water required for the mixture.
The mixer however regulates the temperature only and not the output; one shut-off valve
Non-Return Valves, Filters, and Integral Stops
Non-return valves are incorporated into the cartridge. Eurotherm incorporates easily
, in order to access
the cartridge, you must close the factory installed hot and cold integral stops. Please
remember the cartridge should be removed and cleaned annually for optimum useful life
of the system.
Revised 7-12-19
FORM SIG 063
