TNM192993-0113 is a plastic-bodied, two-piece pneumatic self-venting relief valve made by ITT, a leading manufacturer of pumps, valves, instrumentation, and filtration products. The valve has a 1/4 inch NPT inlet and 1/4 inch NPT outlet, and a maximum working pressure of 400 PSI. The valve features a safety spring and disc, a positive shut-off feature, and an internal pressure adjustment system. It is also suitable for use in air, water, oil, and other fluid systems.