Pressure Class
150# RFClass 150 (1.6 mm RF height)
300# RFClass 300 (1.6 mm RF height)
600# RFClass 600 (6.4 mm RF height)
900# - 2500# RFSevere Class (6.4 mm RF height)
Product page
SKYLAND
ASME B16.5 Raised Face Pipe Flanges (RF)
Skyland Raised Face (RF) Flanges feature a concentric raised step on the gasket surface (1/16" / 1.6 mm height for Class 150/300; 1/4" / 6.4 mm height for Class 400 to 2500). By concentrating clamping force onto a smaller gasket area, they deliver superior seal pressure containment with spiral wound, camprofile, or sheet gaskets.
Manufactured strictly to ASME / ANSI B16.5 and ASME B16.47
Pressure Classes: Class 150, 300, 400, 600, 900, 1500, and 2500 LBS
Sizes: 1/2" to 48" NB (DN 15 to DN 1200)
Facing finish: 125 to 250 Ra spiral serrated finish per ASME B16.5 requirements
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Talk to ATHStandardASME / ANSI B16.5, ASME B16.47
Pressure ClassClass 150# to 2500#
Sizes1/2" to 48" (DN 15 to DN 1200)
Step Height1.6 mm (Class 150/300), 6.4 mm (Class 400-2500)
MaterialsASTM A105N, A350 LF2, A182 F316L, Duplex F51
CertificationsEN 10204 3.1, PED 2014/68/EU, ISO 9001:2015
Industry Standard
ASME B16.5 Raised Face Flange Data
Select nominal size, pressure rating, and material grade.
StandardASME B16.5
FacingRaised Face (RF)
Classes150# to 2500#
Sizes1/2" to 48"
Part Number Example
SKL-RF-040-300RF-316L
SKLBrandSkyland Metal & Alloys
RFTypeRaised Face Flange
040Size4" NPS (DN 100)
300RFClassClass 300 Raised Face
316LMaterialASTM A182 F316L
Technical specifications
Design CodeASME B16.5
Operational Notes
Serrated face grips spiral-wound gaskets securely to prevent blowout under pressure surges.
Product Overview
Raised Face is the most common flange facing across worldwide process industries, ensuring leak-free performance under pressure.