Flanges
Pipe Flanges
Our technical expertise and dedicated approach ensure exceptional advantages for our clientele, including Precision-Engineered Flanges, efficient production, and cost-effective solutions.
- Products in range
- 22
Flanges: specification
At a glance
- Dimensional standard
- ASME B16.5 · ASME B16.47 · ASME B16.36 · ASME B16.48 · BS 10 · EN 1092-1 · BS 4504
- Size range
- 1/2″ – 64″ (15 – 1600 NB)
- Pressure classes
- Class 150 · Class 300 · Class 600 · Class 900 · Class 1500 · Class 2500
- Construction
- Forged · Plate
- Facings
- Flat face (FF) · Raised face (RF) · Ring joint (RTJ)
- Grades
- Mild SteelIS 2062 Gr. A
- Carbon SteelASTM A105N
- Stainless SteelASTM A182 F304 / F304L / F316 / F316L
- Alloy SteelASTM A182 F11 / F22 / F91
Dimension tables by class
8 classes · dimensions, weights, Excel
Carbon Steel
Stainless Steel
Alloy Steel
As published by Fortune Fittings Private Limited. Grade and availability are confirmed with each enquiry; confirm the governing standard, size and grade when ordering. Spotted a mistake? Please contact us.
Overview
About flanges
Flanges make a bolted, gasketed joint that can be opened again, at equipment nozzles and valves, at spool breaks, and anywhere a line has to be isolated, inspected or replaced. The choice of flange type, facing and pressure class follows the service and the mating flange.
The range covers weld neck, slip-on, socket weld, threaded, lap joint and blind flanges, plate and backing-ring flanges, orifice flanges to ASME B16.36, spectacle blinds, paddle blinds and ring spacers to ASME B16.48, and nipoflanges for flanged branch connections.
Flanges up to 24″ are made to ASME B16.5 and larger sizes to ASME B16.47 Series A and B, from 1/2″ to 48″ in Classes 150 to 2500, with flat face, raised face or ring type joint facings. Mild steel flanges are made to BS 10 tables.
Materials include mild steel IS 2062, carbon steel ASTM A105N, stainless steel A182 F304 and F316 and alloy steel A182 F11, F22 and F91. Dimensions, bolt circles and bolting for each class are in the tables below.
Range
Flanges range
The 22 products manufactured and stocked in this category.
Weld Neck FlangeWeld neck flanges to ASME B16.5, ASME B16.47 and EN 1092, including long weld neck, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Slip-On FlangeSlip-on flanges to ASME B16.5 and EN 1092-1, flat or raised face, with dimension tables for mild, carbon and stainless steel.View specifications
Blind FlangeBlind flanges to ASME B16.5, ASME B16.47, BS 4504 and EN 1092-1, 1/2″ to 48″, with tables for MS, carbon, stainless and Cr-Mo grades.View specifications
Socket Weld FlangeSocket weld flanges to ASME B16.5 and BS 4504 for small-bore, high-pressure lines, in stainless and carbon steel, with Class 150 tables.View specifications
Threaded FlangeThreaded flanges to ASME B16.5 with NPT or BSP threads for low-pressure lines where welding is not wanted, with Class 150 tables.View specifications
Lap Joint FlangeLap joint flanges to ASME B16.5, EN 1092-1 and DIN 2642, used with a stub end, Class 150 to 600, with Class 150 dimension tables.View specifications
Forged FlangesForged slip-on, weld neck, socket weld and blind flanges to ASME B16.5 and B16.47 in carbon, stainless and alloy steel.View specifications
Pipe FlangesPipe flanges to ASME B16.5, Class 150 to 2500: weld neck, slip-on, socket weld, threaded, lap joint and blind, in five facings.View specifications
Slip-On Plate FlangeSlip-on plate flanges that slide over the pipe and are fillet welded inside and out, with BS 10 slip-on tables in mild steel.View specifications
Flat Face FlangeFlat face flanges for full-face gaskets and mating with cast iron equipment, 1/2″ to 48″, with BS 10 mild steel tables.View specifications
Raised Face FlangeRaised face flanges to ASME B16.5 and B16.47, 1/2″ to 48″, Class 150 to 2500, with carbon and stainless steel dimension tables.View specifications
Male & Female FlangeMale and female face flanges, where a raised spigot locates in a matching recess, in stainless, duplex and nickel alloys.View specifications
Tongue & Groove FlangeTongue and groove flanges, where a raised ring seats in a matching groove for alignment and gasket retention, in stainless and nickel alloys.View specifications
Ring Type Joint FlangeRing type joint flanges to ASME B16.5 and API 6A, 1/2″ to 48″, Class 150 to 2500, with Class 600 RTJ dimension tables in carbon steel.View specifications
Orifice FlangeOrifice flanges to ASME B16.36 for differential-pressure flow measurement, raised face or RTJ, stocked from 1″ to 6″.View specifications
Spectacle BlindSpectacle blinds to ASME B16.48 (a solid and an open disc in a figure 8), 1/2″ to 48″, Class 150 to 2500, for line isolation.View specifications
Paddle BlindPaddle blinds (spades) to ASME B16.48 for isolating a line between two flanges, 1/2″ to 48″, up to Class 2500, in A105 carbon steel.View specifications
Ring SpacerRing spacers to ASME B16.48 that increase the distance between two flanges where extra space is needed in a piping system.View specifications
Backing Ring FlangeBacking ring flanges to ASME B16.5 that fit over a stub end to make a bolted joint, in ductile iron.View specifications
NipoflangeNipoflanges for flanged branch connections, customised in size and material to the specification supplied.View specifications
Series A FlangeLarge-diameter flanges to ASME B16.47 Series A, in stainless steel, duplex 2205 and nickel alloys.View specifications
Series B FlangeLarge-diameter flanges to ASME B16.47 Series B, in stainless steel, duplex 2205 and nickel alloys.View specifications- Size or grade not listed?Send the drawing or bill of materials and we will quote against it, including non-standard sizes.Request a quotation
Where it is used
Applications and service
Typical duty across the process industries we supply.
Precision Engineering
Every flange is manufactured to exact dimensional and facing standards, supported by full mill traceability.
Efficient Production
Streamlined manufacturing keeps lead times short without compromising cost-effectiveness for bulk project orders.
Configurations
Forms made in this range
Standard configurations, manufactured and stocked. Non-standard sizes and forms are made to drawing.
- Weld Neck Flanges
- Slip-On Flanges
- Blind Flanges
- Socket Weld Flanges
- Threaded Flanges
- Lap Joint Flanges
Where it is specified
Industries using this component
Sectors that commonly specify the flanges, and what else they take from us.
- RefineriesButtweld fittings, flanges and fabricated spools in carbon and alloy steel for crude, product and utility service.View sector
- Petrochemical PlantsDuplex, super duplex and stainless fittings and flanges for corrosive and high-pressure process service.View sector
- Power PlantsAlloy steel buttweld and forged fittings for high-temperature steam, feedwater and condensate circuits.View sector
- Pulp & PaperStainless fittings, flanges and gratings for wet, abrasive and chemically aggressive mill environments.View sector
- Fine ChemicalCorrosion-resistant fittings and flanges in stainless, duplex and super duplex for aggressive process chemistry.View sector
- Manufacturing PlantsCarbon and stainless fittings, flanges and gratings for the water, steam, air and process lines of general manufacturing plants.View sector
Enquiries
Need a quotation for flanges?
Send sizes, grades, quantities and the standard the component is specified to, and a sales engineer will come back with availability and pricing.