Model C Thermostatic Control Valve

The AMOT Model C thermostatic control valve is available in a wide range of sizes and settings to fill a multitude of fluid temperature control requirements. The model C valves may be mounted in any position and use the proven expanding wax principle to actuate the 3-way temperature element assemblies. The AMOT model C valves can be used for diverting or mixing service.

The model C makes very economical temperature limiting valves to prevent scalding in hot water supply systems, such as in emergency water systems for labs. Radiant heating systems can use these valves in limiting water temperature to prevent surface cracking and over-heating of plastic piping. Other applications include electronic and battery cooling circuits, pump temperature relief valves etc.

In some applications, it is necessary to have leak holes drilled in the element to ensure a small flow between ports A and C. Leak holes are available in sizes ranging from 0.8 mm – 6.3 mm (1⁄32″ – 1⁄4″). A wide selection of element materials, seals and temperatures are available. Follow the equipment manufacturer’s guidelines for heating/cooling systems.

Temperature settings are available from 18…113°C (65…235°F). Refer to the temperature and element characteristics table on page 7 for specific temperature settings. In general, the temperature quoted is the nominal operating temperature in diverting mode on water systems. For long life, AMOT valves should not be operated continuously at temperatures in excess of 14°C (25°F) of their maximum continuous rating.

For mixing and oil circuits, the temperature may be one to two degrees higher due to flow, viscosity and other system parameters.