Midland Industries 108067BF Blind Flange 3 in 150 Lb Iron

Product Description

The MIDLAND INDUSTRIES 108067BF is a 3-inch ductile iron blind flange rated at 150 lb pressure class. Blind flanges are solid, non-through fittings used to seal the end of a pipe, valve, or pressure vessel opening. This flange meets ASME B16.42 and AWWA C110 dimensional standards, making it suitable for waterworks and industrial piping systems. At 0.94 inches thick with a 7.5-inch outer diameter and four bolt holes, it provides a secure, leak-resistant closure. Licensed plumbers and pipefitters install this fitting during system commissioning, pressure testing, or permanent line termination.

This blind flange is used in 3-inch piping systems where a pressure-rated end closure is required. Typical applications include municipal water distribution, industrial process piping, and irrigation mainlines. The 150 lb pressure class fits standard low-to-medium pressure service conditions. The black ductile iron construction suits buried or exposed service environments. Its four-bolt pattern with 0.75-inch bolt holes aligns with ASME B16.42 and AWWA C110 bolt circle layouts, simplifying replacement or new installation work.

Key Features

• 150 lb pressure class rating per ASME B16.42 and AWWA C110
• Ductile iron construction with black finish for durability in varied service environments
• 0.94-inch flange thickness for structural rigidity under pressure
• Four bolt holes at 0.75-inch diameter with 6-inch hole center-to-center spacing
• 7.5-inch outer diameter for standard 3-inch pipe flange bolt-circle alignment

Compatibility

Designed as an OEM-style replacement or new-installation blind flange for 3-inch, 150 lb class flanged piping systems conforming to ASME B16.42 or AWWA C110 dimensional standards.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes including ASME B31 and local piping standards. Depressurize and isolate the line completely before removing any existing flange or fitting. Use a full-face gasket appropriate for the service fluid and torque all bolts evenly in a cross pattern to achieve uniform seating. Verify system integrity with a pressure test before returning the line to service.