{"product_id":"parker-16-12-hlo-s-steel-tube-union-orfs-6000-psi","title":"Parker 16-12 Hlo-s Steel Tube Union Orfs 6000 Psi","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PARKER 16-12 HLO-S is a steel compression tube union with O-Ring Face Seal (ORFS) end connections designed for high-pressure hydraulic and fluid transfer lines. It joins two tube lines of different outside diameters — 1 inch and 0.75 inches — using UNF-threaded ORFS fittings that provide a leak-resistant, vibration-tolerant seal. Rated to 6000 psi maximum working pressure, this fitting is built for demanding industrial and mobile hydraulic applications where a reliable tube-to-tube connection is required. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis union fitting is used in hydraulic systems, fluid power circuits, and high-pressure tubing assemblies found in industrial machinery, mobile equipment, and heavy-duty service applications. The ORFS end connections follow the SAE J1453 style interface, which relies on an O-ring seated against a flat face to create a positive seal without relying on thread engagement alone. The 16-12 size designation indicates the step-down union configuration from 1-inch to 3\/4-inch tube outside diameter, making it suitable for reducer union applications in compact plumbing runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSteel construction for durability in high-pressure hydraulic service\u003c\/li\u003e\n  \u003cli\u003eO-Ring Face Seal (ORFS) end connections for leak-resistant performance\u003c\/li\u003e\n  \u003cli\u003eRated to 6000 psi maximum working pressure\u003c\/li\u003e\n  \u003cli\u003eUNF thread standard for compatibility with standard ORFS port tooling\u003c\/li\u003e\n  \u003cli\u003eTube outside diameter: 1 inch x 0.75 inches (step-down union)\u003c\/li\u003e\n  \u003cli\u003eOverall length: 1.92 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service fitting for high-pressure hydraulic tube assemblies using O-Ring Face Seal connections with UNF thread standard and 1-inch by 3\/4-inch tube outside diameters.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified pipefitter or hydraulic technician. Depressurize and isolate the hydraulic circuit fully before disassembly or fitting installation. Inspect the O-ring seating surface for nicks or contamination prior to assembly, and install a new O-ring if the original is damaged. Torque to the fitting manufacturer's published specifications for the connection size and do not over-tighten, as ORFS fittings seal via the O-ring face and not thread compression.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Union\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: O-Ring Face Seal (ORFS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 1 inch x 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 6000 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.92 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.74 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27121700\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 16-12 HLO-S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51544531435826,"sku":"16-12 HLO-S","price":120.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/39216ec0b3cafc2e4495da90860ec219_ebf5b662-35e3-465c-865f-fdbab59d808e.jpg?v=1785928949","url":"https:\/\/voomisupply.com\/products\/parker-16-12-hlo-s-steel-tube-union-orfs-6000-psi","provider":"Voomi Supply","version":"1.0","type":"link"}