Macon Controls N10857 Body

The Macon Controls N10857 is a heavy-duty, nickel-plated forged brass thermostatic radiator valve body designed for precision flow control in hydronic and low-pressure steam heating systems. Featuring a 3/4" horizontal angle configuration with a 2.5 Cv rating, this valve body is engineered to integrate seamlessly with Macon NT series operators, ensuring an airtight, modulating seal that prevents over-heating and balances system pressure. The NPT female inlet and male union outlet provide a robust, leak-resistant connection suitable for freestanding radiators, convectors, and baseboard units. For technicians performing retrofits, the replaceable valve insert and stainless steel spindle allow for maintenance and operator swaps without the need to drain or shut down the entire heating loop. Built to ASHRAE Standard 102P-1983, the N10857 body handles a maximum static pressure of 145 PSI and water temperatures up to 250°F, delivering reliable performance and up to 30% energy savings in commercial or residential piping layouts.

• High-Flow Efficiency: Optimized with a 2.5 Cv rating to ensure adequate BTU delivery for 3/4" hydronic and steam lines.
• Maintenance-Friendly Design: Features a replaceable cartridge insert and stainless steel spindle for long-term serviceability.
• Durable Construction: Forged brass body with nickel plating resists corrosion and eliminates expansion noises in the piping.
• Versatile Application: Fully compatible with both hot water systems and two-pipe steam applications (up to 15 PSI steam).
• Modulating Control: Works with non-electric thermostatic heads to provide individual room temperature control.

What operators are compatible with the N10857 valve body?
This body is designed specifically for Macon NT series operators, including the EVO-28 and various remote dial sensors for concealed heating units.

Can this valve be used for one-pipe steam systems?
No, the Macon N10857 horizontal angle body is intended for two-pipe steam systems or hot water applications. One-pipe systems require specialized vacuum-breaker style valves.

Is the union nipple included with the N10857?
Yes, the N10857 typically ships with a standard straight union nipple for ease of connection to the radiator or convector inlet.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.