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Model RBFF Residential Boiler Fill Fitting
The Model RBFF Residential Boiler Fill Fitting (RBFF) provides a convenient solution to comply with boiler manufacturers’ piping requirements and provide ease of service for expansion tanks and water pressure regulator valves in closed-loop hot water heating systems. Using a unique 3-way ball valve design, the RBFF eliminates up to twelve 1/2 inch fittings in a compact package.
- One-piece construction, eliminating up to 11 threaded joints.
- Unique 3-way ball valve for isolation of water pressure regulator and expansion tank from system pressure.
- Drain port with integral ball valve for unloading pressure from waterside of expansion tank diaphragm for air charge servicing and maintenance. Drain port can also be used for a variety of system draining and filling operations.
- 0 to 30psi pressure gauge for convenient system pressure reference.
The Model RBFF Residential Boiler Fill Fitting (RBFF) should be installed in closed-loop hot water heating systems as per the piping diagram shown below.
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