Sapphire Thermal Valve Retrofit Kit Browning Treatments and represent a typical motor

and represent a typical motor sampled from production

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Length: 7/8 inch

Change the crankcase oil when you rebuild

Sapphire Thermal Valve Retrofit Kit Browning Treatments and represent a typical motorOverview Thermal valve retrofit kit for Sapphire Scientific truckmounts. Sapphire part number 48 168. It replaces the original 165 degree thermal relief valve (23 033). Why a retrofit kit exists A thermal relief valve protects the solution pump. When the machine runs with the trigger closed, the pump is working against itself and heating the water it is holding. The thermal valve opens at its set temperature and dumps that heat before the pump seals