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Twin thermostat waterpump

Twin thermostat waterpump

Twin thermostat waterpump

I am going through some literature of Rolls-Royce diesel engines and wondering how is the working of twin thermostat water pump? Why there are two outlets to radiator? Most of the time I dealt with water pump which has single thermostat in housing.

RE: Twin thermostat waterpump

Larger engines use thermostat modules. A housing can incorporate as many modules as required to achieve an acceptable velocity at the required flow rate. Our Caterpillar 3500 series engines use 4 modules in the t-stat housing.

Caltherm is a leading producer of the modules.


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