Flange Fittings
Lap Joint Flanges
Precision-engineered lap joint flanges designed for flexible pipe connections, convenient installation and reliable performance in industrial and process piping applications
Product Type:
Lap Joint Flanges / Loose Flanges
Size Range:
1/2" NB to 48" NB
Standards:
ASME / ANSI / ASTM
Pressure Class:
150 to 2500 LBS
Application:
Industrial, Process & Specialized Piping
About This Product
Lap Joint Flanges
GS MetalFit supplies Lap Joint Flanges designed for piping systems where convenient flange assembly, alignment and maintenance are important. Lap joint flanges are used with suitable stub ends, allowing the flange to remain loose around the pipe while the stub end provides the welded pipe connection.
The loose flange arrangement allows the flange to be rotated for easier bolt-hole alignment during installation and maintenance. This makes lap joint flanges suitable for piping systems where frequent dismantling, inspection or alignment adjustments may be required.
Our lap joint flange range is available in stainless steel, carbon steel, alloy steel, duplex and super duplex steel, nickel alloys and copper-nickel materials. Products can be supplied in different sizes, pressure classes, face configurations, material grades and dimensions according to specified project requirements.
Product Forms
Loose Flange
Lap Joint Pipe Flange
Lap Joint Raised Face Flange
Lap Joint RTJ Flange
Stainless Steel Lap Joint Flange
Carbon Steel Lap Joint Flange
Alloy Steel Lap Joint Flange
Duplex Steel Lap Joint Flange
Super Duplex Lap Joint Flange
Nickel Alloy Lap Joint Flange
Copper Nickel Lap Joint Flange
Lap Joint Flange with Stub End
Loose Backing Flange
Technical Specifications
Materials & Grades
Stainless Steel Lap Joint Flanges
Available in ASTM A182 / A240 grades including F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H and 904L.
Duplex & Super Duplex Steel Lap Joint Flanges
Available in ASTM / ASME A/SA182 grades including F44, F45, F51, F53, F55, F60, F61, 2205 (UNS S31803) and 2507 (UNS S32750).
Carbon Steel Lap Joint Flanges
Available in ASTM / ASME A/SA105, A350, A181 LF2, A516 Grade 70, A36 and A694 grades including F42, F46, F52, F60, F65, F70, LF2 and LF3.
Alloy Steel Lap Joint Flanges
Available according to applicable ASTM / ASME specifications including A/SA182 and A387 grades F1, F5, F9, F11, F12, F22 and F91.
Copper & Cupro Nickel Lap Joint Flanges
Available in selected copper and copper-nickel grades including UNS C10100, C10200, C10300, C10800, C12000, C12200, C70600 and C71500, including Cu-Ni 90/10 and Cu-Ni 70/30 grades.
Nickel Alloy Lap Joint Flanges
Available in ASTM / ASME SB564, SB160, SB472 and SB162 materials including Nickel 200, Nickel 201, Monel 400, Monel K500, Inconel 600, Inconel 601, Inconel 625, Inconel 800, Inconel 825, Hastelloy C276 and Alloy 20.
Applications
Industrial Piping Systems
Process Piping
Chemical & Petrochemical Applications
Oil & Gas Facilities
Power Generation Systems
Marine & Offshore Applications
Piping Systems Requiring Frequent Maintenance
General Engineering & Fabrication
Why Choose GS MetalFit?
Wide Material Selection
Lap joint flanges are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys and copper-nickel grades.
Flexible Flange Alignment
The loose flange arrangement allows convenient rotation for bolt-hole alignment during installation and maintenance.
Multiple Pressure Classes
Products can be supplied in pressure classes from 150 LBS to 2500 LBS according to specified requirements.
Different Face Configurations
Raised Face and Ring Type Joint options can be supplied according to piping and project requirements.
Project-Based Specifications
Size, material grade, pressure class, dimensions, flange configuration and applicable standards can be selected according to customer drawings and technical requirements.
Lap Joint Flanges Manufacturer & Supplier
GS MetalFit supplies Lap Joint Flanges for industrial, process and engineering piping applications where flexible flange positioning, convenient alignment and easy maintenance are important. Lap joint flanges are generally used together with suitable stub ends to create a practical flanged pipe connection.
The loose flange arrangement allows the flange to rotate around the pipe or stub end, making bolt-hole alignment easier during installation. This feature can also be useful in piping systems where regular inspection, dismantling or maintenance is required.
Our Lap Joint Flanges are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloy and copper-nickel materials. Products can be supplied in different sizes, pressure classes, face configurations and dimensions according to specified project requirements.
Stainless Steel Lap Joint Flanges
GS MetalFit supplies stainless steel Lap Joint Flanges in commonly specified grades such as 304, 304L, 316, 316L, 321, 347, 904L and other applicable grades. These materials can be selected for piping applications where corrosion resistance and material compatibility are important.
Carbon Steel & Alloy Steel Lap Joint Flanges
Carbon steel and alloy steel Lap Joint Flanges are available for applications requiring suitable mechanical strength and pressure resistance. Material options include ASTM A105, A350, A182 and A387 grades, subject to specified project requirements.
Duplex, Super Duplex & Nickel Alloy Lap Joint Flanges
For demanding industrial environments, GS MetalFit supplies duplex, super duplex and nickel alloy Lap Joint Flanges in materials such as UNS S31803, UNS S32205, UNS S32750, Nickel 200, Monel 400, Monel K500, Inconel 600, Inconel 625, Inconel 825, Hastelloy C276 and Alloy 20.
These materials can be considered for applications involving corrosive process media, elevated temperatures and other demanding operating conditions where the selected material is suitable for the service.
Lap Joint Flanges for Industrial Project Requirements
GS MetalFit supports enquiries for Lap Joint Flanges used in industrial piping, process systems, chemical and petrochemical facilities, oil and gas applications, power projects, marine applications and general engineering requirements.
Products can be supplied according to specified size, pressure class, material grade, flange configuration, dimensions, applicable standards and customer drawings.