Merit Brass 650-40 Slip on Pipe Flange 2.5 in Pipe Ss 316

Product Description

The MERIT BRASS 650-40 is a slip-on pipe flange designed for 2-1/2 inch pipe with a 7 inch outside diameter. Machined from Grade 316 stainless steel, it delivers strong corrosion resistance in demanding environments including chemical processing, marine, and industrial piping systems. The flange is rated at 150 psi and features a circular bolt pattern with 4 bolt holes on 5-1/2 inch bolt hole centers, each measuring 3/4 inch in diameter. At 5.25 pounds, it is a solid, full-weight fitting suited for permanent installations. Plumbers, pipefitters, and industrial maintenance technicians are the typical installers.

This slip-on flange suits Class 150 piping systems where a field-welded connection is preferred over a threaded or socket-weld joint. The slip-on design allows the pipe to pass through the flange bore before fillet welding on both sides, a common method in low-to-medium pressure applications. Grade 316 stainless steel makes it a practical choice in corrosive service lines, including saltwater, mild acids, and food-grade process piping. It fits residential, commercial, and light industrial installations wherever a 2-1/2 inch stainless flanged connection is required.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in harsh or wet environments
• Slip-on design allows pipe insertion before dual fillet weld installation
• 150 psi pressure rating for Class 150 service applications
• 4-bolt hole pattern on 5-1/2 inch bolt hole centers with 3/4 inch bolt holes
• 7 inch outside diameter on 2-1/2 inch nominal pipe size
• Circular flange shape for standard ANSI-style mating flange connections

Compatibility

Designed as an OEM-style replacement or new-installation slip-on flange for 2-1/2 inch nominal pipe size Class 150 stainless steel piping systems.

Installation Notes

Installation is typically performed by a licensed pipefitter or plumber following applicable piping codes such as ASME B31.3 or ASME B31.1. Depressurize and fully isolate the piping system before beginning any flange work. The slip-on flange requires fillet welds on both the face side and the bore side of the flange for proper strength and leak resistance. Verify bolt hole alignment and gasket selection before final bolting to the mating flange.