Founded in 1878, Watson McDaniel Company is a U.S. manufacturer of steam traps, pressure pumps, pressure and temperature regulators, relief valves, liquid drainers, ejectors, engineered systems, and a variety of specialty......Founded in 1878, Watson McDaniel Company is a U.S. manufacturer of steam traps, pressure pumps, pressure and temperature regulators, relief valves, liquid drainers, ejectors, engineered systems, and a variety of specialty products. With our ISO9001 certification, ASME B&PV Code Stamp approvals, and patented product introductions dating back to the early 1900s, Watson McDaniel is positioned to provide our customers with state of the art steam specialty products at affordable costs.