Merit Brass 635-48 Threaded Pipe Flange 3 in 150 Psi 316 Ss

Product Description

The MERIT BRASS 635-48 is a threaded pipe flange machined from Grade 316 stainless steel, designed for use on 3-inch pipe with a 7.5-inch outside diameter. It carries a pressure rating of 150 psi and features four bolt holes on 6-inch bolt-hole centers, with each bolt hole measuring 0.75 inches. Grade 316 stainless steel provides strong resistance to corrosion and chloride environments, making this flange well suited for process piping, chemical handling, and marine or coastal installations. Licensed plumbers and pipefitters are the primary installers of flanged pipe assemblies in both commercial and industrial settings.

This flange is appropriate for use in residential and commercial plumbing systems, process piping, and industrial fluid-handling applications where corrosion resistance is a priority. The threaded connection style allows the flange to be installed without welding, making it a practical choice for field replacements and retrofit work. It fits 3-inch nominal pipe size and is built to Class 150 pressure ratings, which covers a wide range of low-to-medium pressure piping scenarios including water, steam, and compatible chemical service lines.

Key Features

• Grade 316 stainless steel construction for superior corrosion and chloride resistance
• Threaded connection eliminates the need for field welding during installation
• 150 psi pressure rating suitable for a broad range of process and utility piping applications
• Four bolt holes on 6-inch bolt-hole centers for secure, balanced clamping
• 7.5-inch outside diameter on 3-inch nominal pipe size
• Circular face profile conforms to standard flange mating geometry

Compatibility

Designed as an OEM-style threaded pipe flange for 3-inch nominal pipe size, Class 150 installations requiring Grade 316 stainless steel material.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Plumbing Code (IPC) and relevant ASME B16.5 flange standards. Depressurize and drain the piping system fully before removing or installing any flange. Thread engagement should be uniform and include an appropriate thread sealant rated for the service fluid. Torque fasteners evenly in a cross pattern to achieve uniform gasket compression, but do not apply torque values beyond what the gasket and flange face specifications allow.