Model HTP

Thermocouple, Sulfur Processing Service

The Delta Controls Model HTP Thermocouple is designed for the primary purpose of reliably protecting a vessel and its refractory lining from excessive temperatures. The HTP provides long-term accuracy and reliability in sulfur processing service.

The design of the HTP is a result of careful attention to design detail, more than 50 years of experience, and numerous field installations. The thermocouple junction is isolated from corrosive and invasive gases by using a constant low-flow flush gas circulating across the junction. The flush gas is kept at a pressure higher than the internal reactor pressure to mitigate the migration of process gases through the primary thermowell, body or seals. Process gases that enter are carried away by the flush gas. The metered flush gas flow has an insignificant effect on the accuracy of the temperature measurement.

The HTP is built to meet each customer’s specific installation requirements, such as thermocouple type, insertion length, and construction materials. Installation tools are available, and recommended to accurately produce the refractory aperture in the correct size and alignment needed by the refractory thermowell and HTP Thermocouple assembly.