Check Valve Gasket 3" Sq. 4 Hole Flange

Check Valve Gasket 3" Sq. 4 Hole Flange

This is a 3-inch square flange gasket, identified by Blackmer part number 381816. It is designed with four bolt holes to seal flanged connections on various Blackmer components. In a concrete batch plant, this gasket is typically used in aeration systems, which use low-pressure air to fluidize cement or fly ash, preventing compaction and ensuring smooth material flow. This gasket is a critical replacement part for maintaining a proper seal on aeration blowers, pumps, or check valves to prevent air leaks and ensure system efficiency.

Key Features

• Direct cross-reference to Blackmer part number 381816.
• Square, 4-bolt hole pattern for 3-inch flanged connections.
• Made from fiberglass or a similar synthetic gasket material.
• Designed for sealing inlet or outlet flanges on pumps, blowers, and strainers.

Fits These Mixers

Vince Hagan, CMW, Con-E-Co, Erie Strayer, Stephens, Donaldson Torit. Fits various Blackmer equipment with a 3-inch square flange connection, including models GX3E, X3E, XH3E, NP3F, NPH3F, TXD3E, TX3E, and various strainers. Commonly used in aeration systems on concrete batch plants from OEMs like Vince Hagan and Con-E-Co that utilize this type of equipment.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.