Merit Brass 635B-24 Blind Pipe Flange 1-1/2 in 316 Ss

Product Description

The MERIT BRASS 635B-24 is a blind pipe flange designed to seal off the end of a 1-1/2 inch pipe in plumbing, industrial, and process piping systems. Blind flanges provide a removable closure at a pipe terminus, allowing future access without cutting into the line. This flange is manufactured from Grade 316 stainless steel, which offers superior corrosion resistance compared to 304-grade material, making it suitable for harsh environments, chemical exposure, and outdoor or marine applications. It measures 5 inches in outside diameter and is rated for 150 psi service. Licensed plumbers and pipefitters are the primary installers of this fitting.

This blind flange is appropriate for residential, commercial, and light industrial piping installations where a 1-1/2 inch pipe termination point must be sealed with a bolted closure. Common applications include process lines, water treatment systems, and chemical distribution piping where 316 stainless steel is specified for its molybdenum-enhanced corrosion resistance. The four-bolt hole pattern with bolt hole centers at 3-7/8 inches across is consistent with standard 150-lb flange dimensions.

Key Features

• Grade 316 stainless steel construction for enhanced corrosion and chemical resistance
• 150 psi pressure rating for standard-service piping systems
• 5 inch outside diameter with 4-bolt circular pattern
• 3-7/8 inch bolt hole center spacing for standard 150-lb flange bolt circle alignment
• 5/8 inch bolt holes sized for standard fasteners
• Blind connection type seals pipe end while allowing future reopening

Compatibility

Designed as an OEM-style replacement or new-installation blind flange for 1-1/2 inch pipe systems using standard 150-lb flange bolt patterns in stainless steel piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing codes such as the IPC. Depressurize and drain the line fully before installing or removing any flange fitting. Use appropriate gasket material rated for the service fluid and verify fastener torque per the applicable flange standard. Do not exceed the rated 150 psi working pressure for this fitting class.