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The MERIT BRASS 6504-800 is a seamless stainless steel pipe nipple sized at 1/4 inch, manufactured to Schedule 80 wall thickness and produced in Grade 316/316L stainless steel. Schedule 80 construction delivers greater wall thickness and pressure capacity compared to standard Schedule 40 fittings, making this nipple suitable for demanding service conditions. The 316/316L dual-grade designation means the material meets both standard and low-carbon requirements, offering strong resistance to corrosion, pitting, and chloride environments. Weighing approximately 0.29 pounds, it is a compact, robust threaded fitting used in professional piping assemblies across a range of trade applications.
This pipe nipple is used in residential and commercial plumbing, HVAC, and industrial piping systems where corrosion resistance and pressure integrity are required. The 1/4 inch thread size and seamless Schedule 80 body make it appropriate for compressed air, chemical lines, steam service, and fluid transfer installations where standard carbon steel fittings would be unsuitable. Plumbers, pipefitters, and mechanical contractors typically specify Grade 316/316L stainless fittings in corrosive or sanitary environments such as coastal installations, chemical handling, and food-adjacent mechanical systems.
Designed as an OEM-style replacement or new-installation fitting for 1/4 inch Schedule 80 stainless steel threaded piping systems using NPT connections.
Installation should be performed by a licensed plumber or pipefitter following applicable IPC and local mechanical code requirements. Shut down and depressurize the system fully before removing or installing any threaded fittings. Apply a compatible thread sealant or PTFE tape rated for stainless steel and the intended service fluid. Do not overtighten threaded stainless fittings, as galling can occur on stainless-to-stainless connections.
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