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The MIDLAND INDUSTRIES 28322 is a brass bulkhead connector designed to route tubing through a panel, bulkhead, or enclosure wall while maintaining a secure, leak-resistant seal. The fitting connects 3/8-inch tube OD on one side to a 3/8-inch female NPTF port on the other, using a 7/8-20 UNEF thread for panel mounting. Rated to 1200 psi maximum operating pressure and suitable across a temperature range of -65 to 250 degrees F, this connector suits demanding fluid and pneumatic systems. Plumbers, HVAC technicians, and pipefitters working with copper or compatible tubing installations will find this fitting a reliable OEM-style solution.
This bulkhead connector is used in residential and light commercial applications where tubing must pass cleanly through a panel or cabinet wall. Typical scenarios include refrigeration equipment, compressed air systems, hydraulic enclosures, and plumbing manifold panels. The brass construction offers corrosion resistance compatible with water, air, and many common refrigerants and hydraulic fluids. At 1.9 inches in length and weighing 0.235 pounds, it is a compact fitting that fits in confined spaces without sacrificing pressure capacity.
Designed as an OEM-style replacement or new-installation bulkhead fitting for systems using 3/8-inch tube OD connections with female NPTF porting in brass fitting assemblies.
Installation is typically performed by licensed plumbers, HVAC technicians, or pipefitters. Depressurize and isolate the system completely before removing or installing any fitting. Use appropriate thread sealant or PTFE tape on the NPTF threads in accordance with IPC or IFGC guidelines as applicable to the system type. Avoid over-tightening the panel-mount nut, as brass threads can gall if torqued without lubrication.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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