Armstrong C5297-60 811 2 NPT 1 8 Orif. Orifice

Armstrong C5297-60 is an inverted bucket steam trap (model 811) from Armstrong’s robust steam-trap family, designed for reliable condensate removal in boiler and steam piping systems. This cast-iron trap features 1/2" NPT connections on the inlet and outlet and a 1/8" orifice, engineered to operate in steam systems up to 125 psi. The C5297-60 designation denotes the specific trap configuration within the 800/811 inverted bucket line, while industry catalogs show C5297-21 as the replacement part for this number, reflecting Armstrong’s practice of updating part numbers while preserving function. Typical applications include condensate drainage in medium-load steam circuits, surface condensate return lines, and heating coils where a simple, mechanical trap with a small discharge orifice is appropriate. With its cast-iron body, the trap aligns with standard durability expectations for the 811 family and is suited to moderate-temperature steam service in industrial environments. When considering replacement or cross-reference, confirm your system uses 1/2" NPT connections and a 1/8" orifice and verify compatibility with operating pressure up to 125 psi. This model is a recognized part of Armstrong’s 800/811 inverted bucket series, known for straightforward operation and dependable condensate discharge in typical industrial applications.