pneumatic tubing

While this functions as a 140-degree thermal switch

This means the internal switch closes as the temperature reaches the setpoint

soot buildup in the flue

the D-9502-604 supports a broad field-selectable operating range of 3 to 13 psi

Watts F121605 Valve 30067439-890 pneumatic tubingThe Watts F121605 (LF340X 8 150) is a high capacity Temperature and Pressure Relief Valve designed specifically for large scale commercial water heaters and storage tanks. Featuring a 1 1 2 inch male inlet and female outlet, this lead free relief valve provides critical overpressure protection with a set pressure of 150 PSI and a maximum temperature rating of 210F. Engineered with an ASME Section IV rating, the F121605 delivers a high flow discharge