Watson McDaniel Type O Pressure Regulator Valve

The Watson McDaniel Type O Direct-Operated Pressure Regulating Valve is a 1" NPT direct-operated regulator designed to reduce and maintain downstream pressure in steam, air, water, and other fluid systems. It offers an adjustable outlet pressure range of 10–30 PSI, a cast-iron body, and a hardened 420 stainless steel seat and disc for reliable operation, with a maximum inlet pressure of 250 PSIG and a maximum differential pressure of 125 PSI. The valve uses a female NPT connection (1 in. NPT) and is suitable for steam, air, water, oil, and other compatible fluids and gases depending on diaphragm configuration. Common installations include industrial process equipment, HVAC systems, humidification units, and steam distribution networks, with applications in steam heating systems, chemical processing plants, food and beverage facilities, hospitals, tire molding equipment, and other industrial manufacturing operations requiring steady downstream pressure control.