Midland Industries 23300X2 Sae Pipe Coupling 1/8 Nptf Brass

Product Description

The MIDLAND INDUSTRIES 23300X2 is a straight pipe coupling designed to join two 1/8-inch Female NPTF connections in fluid and gas piping systems. Built from brass, this SAE-pattern fitting features a 1/8-27 thread form and is rated to 1200 psi, making it suitable for moderate-pressure pneumatic, hydraulic, and plumbing applications. The overall length is 0.7 inches, with a 0.56-inch hex across the flats for standard wrench engagement. Plumbers, HVAC technicians, and pipefitters working on small-diameter line connections will find this fitting appropriate for both new installations and repair work across a range of compatible pipe materials.

This coupling is intended for use in residential and light commercial piping systems where a female-to-female NPTF inline connection is required. The NPTF thread form creates a pressure-tight mechanical seal without relying solely on thread sealant, reducing the risk of leaks under working pressure. Common applications include compressed air lines, fuel gas systems, hydraulic control circuits, and general fluid transfer plumbing where 1/8-inch line connections are standard.

Key Features

• 1/8-27 NPTF thread form on both ends for pressure-tight sealing
• 1200 psi pressure rating suitable for pneumatic and hydraulic service
• Brass construction resists corrosion in a wide range of fluid and gas media
• Temperature range of -65 to 250 degrees F covers most residential and light commercial applications
• 0.56-inch hex allows standard wrench installation without slippage
• Compact at 0.7 inches in length for use in tight spaces

Compatibility

Rated for use with brass, bronze, copper, steel, aluminum, and iron pipe. Designed as an OEM-style SAE pattern replacement coupling for 1/8-inch NPTF female-to-female inline connections in standard pipe systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter following applicable IPC or IFGC code requirements for the specific system type. Depressurize and isolate the line completely before removing or installing any fitting. Apply an appropriate thread sealant or PTFE tape to the male pipe threads being engaged, not to the NPTF female ports of the coupling. Use a properly sized wrench on the hex flats and avoid over-tightening, which can crack brass fittings.