ASME B16.5 Blind Raised Face Flanges (BLRF)

Name: ASME B16.5 Blind Raised Face Flanges (BLRF)
Brand: SKYLAND

Skyland Blind Flanges (BLRF) are solid forged steel discs manufactured without a central bore, designed to dead-end piping systems, seal off valve manifolds, and cap inspection nozzles on pressure vessels. Built to withstand maximum pipeline pressure, bending stresses, and thermal expansion cycles.

Manufactured to ASME / ANSI B16.5, ASME B16.47 Series A & B, DIN 2527, and EN 1092-1 Type 05

Pressure Classes: Class 150, 300, 400, 600, 900, 1500, and 2500 LBS (PN6 to PN400)

Sizes: 1/2" to 48" NB (DN 15 to DN 1200)

Facings: Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ)

Request a Quote Back to Products

ASME B16.5 Blind Raised Face Flanges (BLRF)

Ready for quotationShare your range, connection and case requirement.

Talk to ATH

StandardASME / ANSI B16.5, ASME B16.47, DIN 2527, EN 1092-1

Pressure ClassClass 150# to 2500# (PN10 - PN400)

Sizes1/2" to 48" (DN 15 to DN 1200)

FacingsRaised Face (RF), Flat Face (FF), RTJ

MaterialsASTM A105N, A350 LF2, A182 F316L, Duplex F51, Monel

CertificationsEN 10204 3.1, PED 2014/68/EU, ISO 9001:2015

Technical Selection

ASME B16.5 Blind Flange Specifications

Select nominal size, pressure rating, facing, and material alloy.

StandardASME B16.5 / B16.47

Classes150# to 2500#

Sizes1/2" to 48"

BoreSolid (No Bore)

Size Selection

1/2" - 2"1/2" to 2" NPS (DN 15 - DN 50)

3" - 8"3" to 8" NPS (DN 80 - DN 200)

10" - 24"10" to 24" NPS (DN 250 - DN 600)

26" - 48"26" to 48" NPS (ASME B16.47 Series A/B)

Part Number Example

SKL-BL-060-300RF-A105N

SKLBrandSkyland Metal & Alloys

BLTypeBlind Flange (BLRF)

060Size6" NPS (DN 150)

300RFClassClass 300 Raised Face

A105NMaterialASTM A105N Carbon Steel

Technical specifications

StandardASME B16.5 / DIN 2527

Operational Notes

Blind flanges can be drilled and tapped with NPT ports for pressure gauge or drain connections upon request.

Product Overview & Functions

Blind flanges are subjected to highest mechanical bending stresses among all flange types due to the total hydrostatic end thrust acting across the solid disc surface.

Precision machined gasket contact faces guarantee leak-proof sealing under maximum hydro-test pressures.