Midland Industries DD-3030-A Cam Groove Spool Coupler 3in

Product Description

The MIDLAND INDUSTRIES DD-3030-A is a Type DD cam and groove spool coupler designed to connect two female coupler ends in a single inline fitting. Built from aluminum, this coupler serves as a double-female adapter used in fluid transfer systems where two cam and groove male adapters must be joined. Rated to a maximum operating pressure of 150 psi, it is engineered for demanding industrial and agricultural hose applications. The included NBR gasket handles temperatures from -40 to 212 degrees F, while the aluminum casting is rated from -150 to 250 degrees F, giving installers a broad service range across common process fluids.

This spool coupler is used in industrial hose assemblies, agricultural irrigation lines, tank truck fluid transfer, and general industrial piping systems requiring quick-connect cam and groove fittings. Both connection points are 3-inch female coupler ends, making it a direct inline adapter between two male adapters in a hose or pipe run. It is a standard component in petroleum, water, and chemical transfer setups where fast connect and disconnect cycles are required.

Key Features

• Type DD cam and groove spool coupler joins two female coupler ends inline
• 3-inch female coupler on both ends for symmetric connection
• Aluminum construction offers lightweight corrosion resistance
• Rated to 150 psi maximum operating pressure
• NBR gasket rated -40 to 212 degrees F for broad fluid compatibility
• Casting rated from -150 to 250 degrees F for wide temperature service

Compatibility

Designed as a standard Type DD cam and groove spool coupler compatible with 3-inch male cam and groove adapters following MIL-C-27487 and ANSI/ASME B1.20.1 cam and groove coupling standards commonly used in industrial and agricultural hose systems.

Installation Notes

Installation is typically performed by a plumber, pipefitter, or industrial maintenance technician. Verify that the mating male adapters are free of debris and that the gasket is properly seated before engaging the cam arms. Relieve all system pressure before connecting or disconnecting cam and groove couplings. Inspect the NBR gasket regularly and replace it if cracking, swelling, or deformation is observed.