Watts 0009818 Valve 318973-401 Key Benefits Precise Pressure Management:

Key Benefits Precise Pressure Management: Factory-set at 30 PSI to prevent structural damage to the boiler heat exchanger

Industrial Build Quality: Designed to withstand the thermal stresses found in HVAC industrial cooling applications

Fast Installation: Direct-fit design eliminates the need for shaft cutting or bracket adjustments

ensuring quick recovery times and consistent system performance even under heavy loads

As a direct replacement for 3ARR3MARS66 and various GE 3ARR3 series groups (including 3U

Watts 0009818 Valve 318973-401 Key Benefits Precise Pressure Management:The Watts 0009818, known in the field as the Series 26AA, is a specialized small capacity pressure regulator designed for high precision water applications. This 1 2 inch water pressure reducing valve is factory calibrated for a pressure range of 1 to 25 psi, making it the industry standard for evaporative coolers, fountain dispensers, and laboratory equipment where low flow consistency is critical. Featuring a lead free brass body and a rugged