Merit Brass 450-16 Slip on Pipe Flange 1 in 150 Psi SS304

Product Description

The MERIT BRASS 450-16 is a slip-on pipe flange designed for 1-inch nominal pipe size with a 4-1/4 inch outside diameter. Constructed from Grade 304 stainless steel, it is suited for piping systems where corrosion resistance and pressure integrity matter. The flange is rated at 150 psi and features a circular bolt pattern with four bolt holes on 3-1/8 inch bolt hole centers, each measuring 5/8 inch in diameter. Plumbers and pipefitters install this type of flange where a pipe needs to be joined to equipment, valves, or other flanged connections in a slip-on configuration before final welding.

This flange is appropriate for residential and light commercial plumbing and process piping applications where a 150-pound class slip-on flange in stainless steel is specified. Grade 304 stainless steel makes it a sound choice for wet environments, mild chemical exposure, and sanitary or industrial service lines requiring corrosion-resistant materials. It is installed by sliding the flange over the pipe end and securing it with a fillet weld before bolting to a mating flange face.

Key Features

• Grade 304 stainless steel construction for corrosion resistance in wet and mild chemical environments
• Slip-on design allows the flange to slide over the pipe end prior to welding
• Rated at 150 psi for Class 150 piping systems
• Four bolt holes at 3-1/8 inch bolt hole centers with 5/8 inch bolt hole diameter
• Circular shape with 4-1/4 inch outside diameter for 1-inch nominal pipe size

Compatibility

Designed as an OEM-style replacement and standard-fit slip-on flange for 1-inch nominal pipe size Class 150 piping systems.

Installation Notes

Slip-on flanges are installed by licensed plumbers or pipefitters and require fillet welding at the pipe-to-flange joint before bolting up. Shut off and depressurize the piping system fully before beginning any flange work. Fastener torque sequences should follow the applicable piping code, such as ASME B31.1 or B31.3, as referenced in the project specification. Inspect the mating flange face and gasket surface for damage before assembly.