3/4 inch Bronze 90 Degree Radiator Elbow Hot Water Female x Male

3/4 inch 8566 Radiator Elbow – Threaded Fitting for Hydronic Heating Connections

The 3/4 inch 8566 Radiator Elbow is a precision-machined fitting designed to support directional changes in hydronic heating systems. With a 90° configuration and female x male threaded ends, it facilitates compact transitions in radiator supply and return lines, especially where space constraints demand tight routing.

Engineered for use in hot water distribution systems, this fitting is constructed from corrosion-resistant materials suitable for closed-loop heating circuits. Its durable threads and form factor allow it to integrate seamlessly with iron, steel, or brass components found in radiator assemblies.

Performance Characteristics

• ✅ Threaded Design Female x male connections accommodate direct engagement with other threaded piping or valve components.
• ✅ Heating System Compatibility Designed for use in hydronic radiator piping where thermal cycling and pressure variations are common.
• ✅ Material Integrity Manufactured from heating-grade alloys that maintain dimensional stability under elevated temperatures.
• ✅ Installation Flexibility Right-angle profile supports compact installations near wall surfaces, radiator inlets, or under flooring transitions.
• ✅ Code Compliance Meets industry standards applicable to threaded hydronic heating fittings for residential and light commercial use.

Technical Specifications

• Size: 3/4 inch nominal
• Connection Type: FNPT x MNPT (Female National Pipe Thread x Male National Pipe Thread)
• Material: Brass or equivalent corrosion-resistant alloy (depending on model)
• Operating Temperature: Suitable for hot water service (typically up to 210°F)
• Standards: Complies with ASME and ANSI B1.20.1 thread specifications

Common Applications

This radiator elbow is typically installed in residential baseboard heaters, cast-iron radiator connections, and hydronic distribution loops. It is especially useful for tight routing behind walls, along baseboards, or in retrofit situations where aligning threaded components requires angular correction.

Field Note

Threaded fittings such as the 8566 elbow must be installed using compatible thread sealants or PTFE tape and torqued according to manufacturer recommendations to maintain joint integrity under operating pressure and temperature.

The 3/4 inch 8566 Radiator Elbow offers durable, pressure-rated performance for hydronic heating circuits requiring threaded directional transitions. Its robust construction and compact geometry make it a reliable component in modern and legacy radiator systems.