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The MIDLAND INDUSTRIES 1700812 is a steel hydraulic adapter designed to connect a 1/2-inch Male JIC (Joint Industry Council) fitting to a 3/4-inch Code 61 flange port. It belongs to the 1700 Series of MJIC-to-Code-61 flange adapters and is used to transition between two common hydraulic connection standards in a single compact body. The adapter measures 2.7 inches in length, 1.5 inches in height, and 1.4 inches in width, and weighs 0.45 pounds. Steel construction provides the durability required for high-pressure hydraulic circuit applications. Hydraulic technicians and industrial mechanics are the primary installers.
This adapter is suited for hydraulic systems found in industrial machinery, mobile equipment, and heavy-duty power units where JIC flange connections must interface. Code 61 flange connections are common in high-pressure circuits running at or below 3000 psi, making this fitting appropriate for a wide range of mid- to high-pressure hydraulic plumbing applications. It can be used in new installations or as a replacement fitting when reconfiguring or repairing existing hydraulic circuits.
Designed as an OEM-style hydraulic adapter for systems using 1/2-inch Male JIC and 3/4-inch Code 61 flange port connections in steel flange hydraulic circuits.
Installation should be performed by a qualified hydraulic technician or industrial mechanic familiar with JIC and SAE flange fitting standards. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. Use calibrated torque tooling appropriate for the fitting size and material - do not overtighten steel flange fasteners. Inspect sealing surfaces and O-rings for damage before assembly to prevent leaks under pressure.
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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