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The PARKER 8 VLO-S is a 45-degree male elbow compression tube fitting designed for high-pressure hydraulic and fluid system connections. It connects a 1/2-inch OD tube to a male NPTF port using an O-Ring Face Seal (ORFS) interface on the tube side, creating a leak-resistant joint rated to 6000 psi maximum working pressure. Constructed from zinc-plated steel, this fitting resists corrosion in demanding industrial and mobile hydraulic environments. It is sized at 3/8-18 threads per the NPTF standard. Hydraulic technicians and fluid power mechanics install this fitting when routing tubing at a 45-degree angle off a straight port.
This fitting is suited for mobile equipment, industrial machinery, and hydraulic power units where high-pressure tube-to-port transitions are required. The ORFS connection style is common in systems where vibration and pressure spikes demand a reliable, metal-to-metal seal backed by an O-ring. The NPTF port end provides a dry-seal threaded connection without relying solely on thread sealant. Typical applications include construction equipment, agricultural machinery, and stationary hydraulic systems requiring angled tube routing at the port.
Designed as an OEM-style replacement or service fitting for hydraulic systems using 1/2-inch OD tubing with ORFS connections at a 3/8-18 NPTF ported component.
Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Inspect the O-ring and seating face for damage before assembly, and apply compatible hydraulic fluid or O-ring lubricant to the O-ring prior to torquing. Follow system manufacturer torque specifications and applicable industry standards for ORFS and NPTF connections.
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