Union 1" NPT A350 LF2 206 Bar

• size: 1"
• thread: NPT
• material: LF2 boiler steel (equivalent to P355GH)
• material grade on certificate: SA/A350 LF2 (similar properties: P355NL1, P355NH, P355QH, L360NB, 1.0566, 1.0562, A420-WPL6, A333-Gr.6, StE355)
• pressure class: 3000 PSI (206 bar)
• metal-to-metal cone seal
• operating temperature range: -46°C to +343°C
• impact test at -46°C
• dimensions according to MSS SP-83
• application: industry, steel mills, refineries, boilers, pressure vessels, hydraulic systems, outdoor installations, oil and gas industry
• 3.1 certificate available on request (free of charge)
• origin: European Union

Alternative Name:Union 1" NPT A350 LF2 Class 3000 MSS SP-83, high-pressure boiler union, female threaded union, UNION P355GH, F/F union, forged steel union, 3000# union

Information

Union 1" NPT A350 LF2 Class 3000 is a two-piece fitting designed for quick connection and disconnection of hydraulic installations.

Union 1" NPT A350 LF2 is a high-pressure threaded union manufactured from A350 LF2 boiler steel (equivalent to P355GH), designed for operation under extreme conditions (pressure class 3000 PSI ≈ 206 bar).

The tapered NPT thread provides a durable, leak-tight connection, while the metal-to-metal seal ensures resistance to high temperatures and aggressive media.

The operating temperature range from -46°C to +343°C and the impact test at -46°C confirm the material's resistance to low temperatures and impact loading. Dimensions comply with MSS SP-83.

Applications: industrial installations, outdoor installations, hydraulic systems, piping in steel mills, refineries, boiler plants, and oil & gas facilities.

A350 LF2 Steel Grade

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

• A/SA350-LF2 CL1 / CL2
• A/SA350-LF3 CL1

Marking: each fitting is marked with the size, material grade, heat number, and pressure class.

More information about unions you may find here >> 

Our offer includes also unions in other sizes. If you have any questions contact us. Call 63/2614202 or send an inquiry to email: biuro@polberis.pl 

Write to us if you have European VAT number and do not want to pay the TAX. We will prepare an offer without VAT. Contact us if you want to know price of shipping. Send an inquiry to e-mail: biuro@polberis.pl