B911-M3, 1/2″ Boiler Fill (1156) & Backflow Preventer (9D) Valve Combination, FNPT x FNPT Union

Description

Watts 911 series boiler make-up combo includes 1156 pressure regulating/fill valve and 9D series dual check backflow preventer with atmospheric vent.
Features:

• All-bronze (fill valve & backflow preventer) construction
• Designed specifically to provide make-up water for boiler applications
• High-capacity performance

Technical Specifications:

• Size: 1/2″
• Connections: FNPT x Sweat Union
• Max Operating Temperature: 212°F
• Max. Working Pressure: 100 psi
• Adjustable Range: 10 – 25 psi (factory set at 15 psi)

Warranty:
1-year limited warranty