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The MIDLAND INDUSTRIES FF3812F is a flush-face hydraulic quick-disconnect coupler designed for high-pressure fluid line connections in industrial and mobile hydraulic systems. It features a 3/8-inch body size with a 1/2-inch female NPT port and a 1/2-14 thread. Constructed from steel with a zinc-plated finish for corrosion resistance, this coupler handles operating pressures up to 4000 psi and performs across a temperature range of -65 to 250 degrees F. The flat-face design minimizes fluid spillage and air inclusion during connection and disconnection, making it a practical choice for clean-operation hydraulic circuits.
This coupler is suited for use in hydraulic systems found in agricultural equipment, construction machinery, industrial presses, and similar mobile or stationary power applications. The female NPT connection on one end allows direct integration with standard pipe-threaded fittings and manifolds. The flush-face interface is especially common in applications where contamination control and leak minimization are priorities during line interchange. A licensed hydraulic technician or qualified mechanic typically handles installation in professional service environments.
Designed as an OEM-style replacement or upgrade fitting for hydraulic quick-disconnect applications requiring a 3/8-inch body flush-face coupler with a 1/2-inch female NPT connection.
Installation should be performed by a qualified hydraulic technician. Fully depressurize and bleed the hydraulic system before removing or installing any fittings to prevent injury from residual pressure. Apply thread sealant appropriate for hydraulic service on NPT threads and tighten to fitting manufacturer guidelines using appropriate hand tools. Inspect mating surfaces and seals for damage before completing the connection.
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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