What we supply in this category
Flange selection depends on the connection method, pressure class and facing. We source flanges against the type, size, class, facing and material stated in your specification, along with the gaskets and bolting needed to complete the joint.
Because flanges, gaskets and stud bolts are bought as a set, we are happy to quote the complete joint rather than the flange alone.
Flanges we source
Product types below indicate the scope of this category. Availability and options are confirmed against your specification at enquiry stage.
Weld Neck Flanges
Tapered hub flanges butt welded to the pipe, used where stress distribution and higher duty matter.
Slip On Flanges
Slid over the pipe and fillet welded in place, common for general and cost sensitive service.
Blind Flanges
Solid flanges used to close off the end of a line, a vessel opening or a valve.
Socket Weld Flanges
Small bore flanges where the pipe seats into a machined socket before welding.
Threaded Flanges
Screwed connection for applications where welding is not suitable or not permitted.
Lap Joint Flanges
Used with a stub end so the flange rotates freely for bolt hole alignment.
Gaskets
Sealing elements selected to suit the flange facing, service and pressure class.
Flange Bolting
Stud bolt and nut sets matched to the flange size and class.
Where it is used
Typical applications where customers ask us to supply this category:
- Flanged pipe joints
- Equipment and pressure vessel connections
- Valve and instrument connections
- Line isolation and blanking
- Pipe spool assembly
- Maintenance and joint replacement
What to include in your enquiry
Weld neck, slip on, blind, socket weld, threaded or lap joint
Nominal pipe size (NPS) or nominal diameter (DN)
The class stated in your specification
Raised face, flat face or ring type joint
The material grade required for the service
Schedule or bore to match the connecting pipe
Number of flanges, and whether gaskets and bolting are included
Common reference standards
Flanges are typically specified against ASME B16.5 for sizes up to NPS 24 and ASME B16.47 for larger diameters. Pressure classes such as 150, 300 and 600 and facings described as raised face (RF), flat face (FF) or ring type joint (RTJ) are the details we most often need in order to quote accurately. Different facing types are not intermixed on a joint, so confirming the facing at enquiry stage avoids problems on site.
Frequently supplied together
Need flanges?
Send your item list, specification, drawing or BOQ and we will come back with a suitable supply option.