Pipe Fitting, Adapter with Male NPT Thread – A-LOK Series

• Series: A-LOK
• Product type: Straight adapter with external NPT thread
• Form: Straight
• Outer diameter of the tube: 3–25 mm
• Thread size: 1/8″–1″ NPT
• Meets standards: NORSOK M650, EC 79, NACE
• Material: 316 stainless steel, steel, 6Mo, Alloy 625, Alloy 825, Alloy C-276, Monel 400, titanium, brass, 316L stainless steel
• Working pressure: 180–720 bar
• Minimum operating temperature: -255 °C
• Maximum operating temperature: 649 °C
• Suitable for media: Liquids, fuels, oil, corrosive media, gases, natural gas (CNG), hydrogen, steam, petroleum-based hydraulic fluids (oil)
• Length: 29.4–65.9 mm
• Technical Field: Process Control
• Applications: Instrumentation, analytical systems, CNG/LNG piping, hydrogen applications, offshore control panels, measurement and signal lines, research laboratories
• Industries: Semiconductors, microelectronics, chemistry, petrochemicals, transportation, power generation, nuclear power, oil and gas
• Division: Instrumentation Products Division

Parker’s A-LOK® adapters with external NPT threads and dual clamping rings are designed to provide reliable, leak-free connections in instrumentation, process and control engineering, and analytical applications where a pipe fitting with two clamping rings is required. The fittings are manufactured to high-quality standards and are available in a wide range of sizes, corrosion-resistant materials, and configurations.

By default, Parker A-LOK® adapters are manufactured with external NPT threads in heat-code-traceable 316 stainless steel. Other available materials include 6Mo, Alloy 825, Alloy 625, and Alloy C-276.

The couplings are available for metric pipes with outer diameters ranging from 3 mm to 25 mm.

Features and benefits

• Wide range of corrosion-resistant alloys
• EC79-approved for hydrogen applications
• Parker Suparcase™ Surface Treatment Process for Improved Surface Hardness
• Hardened clamping rings ensure reliable, leak-free connections
• Silver-plated nuts reduce the risk of shearing and seizing during assembly

Markets

• The Semiconductor and Microelectronics Industry
• Chemical industry
• Petrochemical industry
• Transportation
• Power Generation
• Nuclear Power
• Oil and gas industry
• Research Laboratories

Applications

• Instrumentation Systems and Instrument Connections
• Analytics Installations
• CNG/LNG Pipelines
• Hydrogen Applications
• Offshore Control Panels
• Measurement and Pulse Cables