Armstrong 207937-343 RD-40 3/4" Pressure Reducing Valve 12 PSI

The Armstrong 207937-343 is a professional-grade RD-40 pressure reducing valve designed for hydronic heating, HVAC, and water system applications. This 3/4-inch valve is engineered to reduce and maintain consistent downstream pressure, protecting equipment from pressure fluctuations and ensuring optimal system performance.

Key Features:

• Factory preset at 12 PSI with adjustable range of 10-25 PSI
• Durable brass body construction for long-lasting reliability
• Stainless steel internal trim resists corrosion
• Noryl diaphragm provides dependable operation
• Handles inlet pressures up to 150 PSI
• Flow capacity: 0.5 to 5 GPM
• Integrated low inlet pressure check valve
• Removable strainer for easy maintenance
• Compact design for simple installation

The RD-40 valve automatically maintains constant downstream pressure regardless of upstream pressure fluctuations, making it ideal for boilers, hydronic heating systems, and commercial HVAC applications. Its robust construction and precision engineering ensure uninterrupted productivity and efficient pressure control in both residential and commercial environments.