Merit Brass 635-16 Threaded Pipe Flange 1 in 316 Ss

Product Description

The MERIT BRASS 635-16 is a threaded pipe flange machined from Grade 316 stainless steel, designed for 1-inch pipe with a 4.25-inch outside diameter. It connects threaded pipe ends to mating flanges in pressure piping systems, providing a removable, leak-resistant joint. The 316 stainless construction offers strong resistance to corrosion and oxidation, making it a reliable choice in wet, chemical-exposure, or marine-adjacent environments. Rated at 150 psi, this flange suits standard low-pressure piping service. Plumbers and pipefitters install it on commercial and industrial systems where threaded connections and corrosion resistance are both required.

This flange is suited for use in plumbing, process piping, and light industrial systems operating at up to 150 psi. The four-bolt-hole pattern on a 3.125-inch bolt hole center circle is a standard layout for 1-inch Class 150 flanged connections. It is commonly installed in water supply lines, chemical handling systems, and marine or coastal mechanical systems where Grade 316 stainless is specified for its elevated chloride resistance compared to 304-series alloys.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in harsh or wet environments
• Threaded connection type for straightforward installation on standard threaded pipe ends
• 150 psi pressure rating suitable for standard low-pressure piping service
• Four-bolt-hole pattern centered at 3.125 inches across bolt hole centers
• 5/8-inch bolt holes sized to accept standard Class 150 flange hardware
• Circular flange shape with 4.25-inch outside diameter for 1-inch pipe sizing

Compatibility

Designed as an OEM-style replacement or new-installation threaded pipe flange for 1-inch pipe in Class 150 threaded flange applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing codes such as the IPC. Shut off and depressurize the piping system completely before removing or installing any flange. Thread the flange fully onto the pipe end using appropriate thread sealant or PTFE tape rated for the service fluid. Torque flange bolts evenly in a cross pattern to achieve uniform gasket compression, referencing the applicable flange standard for bolt load guidance.