Half Coupling 1" NPT P355NH A350 LF2 Class 3000

• size: 1"
• thread: NPT (tapered)
• material: A350 LF2 carbon steel (properties similar to P355NH, S355J2 for low temperature and high pressure applications)
• steel suitable for welding
• pressure class: 3000 lbs / 206 bar
• operating temperature range: -46°C to +343°C
• impact test at -46°C
• 3.1 certificate available on request (free of charge)
• application: industry, pressure vessels, machinery manufacturing, hydraulic systems, outdoor installations, oil and gas transmission
• origin: European Union

Alternative Name: Half Coupling 1" NPT P355NH A350 LF2 Class 3000 Threaded Fitting High Pressure Coupling Tapered NPT Thread Welding Half Coupling Carbon Steel Coupling

Information about the Half Coupling

Half Coupling 1" NPT P355NH A350 LF2 Class 3000 belongs to the family of threaded high-pressure fittings. Half couplings are available in all inch sizes. Each fitting is marked with the size, material grade, heat number and pressure class, ensuring safety and durability in demanding installations. All threaded fittings are available with a 3.1 certificate.

A350 LF2 is a low-alloy steel primarily used for forged fittings, flanges, valves and connectors. It is intended mainly for low-temperature service and offers excellent weldability. It is suitable for operating temperatures down to -20°F (LF1), -50°F (LF2) and -150°F (LF3).

Additional Information

• width W = 44.5mm
• length D = 30mm
• material on certificate: SA/A350 LF2 (similar properties to P355NL1, P355NH, P355QH, L360NB, 1.0566, 1.0562, A420-WPL6, A333-Gr.6, StE355)
• marking: size, pressure class, material grade and heat number stamped on each fitting
• manufactured according to PED 97/23/EC, ISO 9001, ASME B16.11-2011, BS3799-74, ANSI/ASME B1.20.1-2013, MR0175-2009 / ISO 15156, MSS
• SP25-L.E.
• the NPT thread is not machined through the entire coupling due to the tapered thread design