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ASME B16.47 / B16.5 Nipo Flanges (Nipoflanges)

Skyland Nipo Flanges (Nipoflanges) integrate a standard ASME B16.5 / B16.47 pipe flange with a contoured Nipolet branch nozzle into a single seamless forging. Engineered for 90° instrument take-offs, vent/drain connections, and sampling ports directly from main process pipes.

Manufactured to ASME B16.5, ASME B16.47, and MSS SP-97 standards

Pressure Classes: Class 150, 300, 600, 900, 1500, and 2500 LBS

Run Pipe Sizes: 2" to 36" with Branch Flange Sizes from 1/2" to 4" NPS

Eliminates two intermediate butt-weld joints compared to traditional tee/weld-neck/nipple combinations

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Branch Connection

Nipoflange Technical Specifications

Select main header run size, branch flange size, and class.

StandardASME B16.5 / MSS SP-97
DesignIntegral Flange + Nipolet
Classes150# to 2500#
Branch1/2" to 4" NPS

Branch Flange Size

1/2"1/2" NPS Branch (DN 15)
3/4"3/4" NPS Branch (DN 20)
1"1" NPS Branch (DN 25)
2"2" NPS Branch (DN 50)

Part Number Example

SKL-NF-020-080-300RF-316L

SKLBrandSkyland Metal & Alloys
NFTypeNipo Flange (Nipoflange)
020Branch Size2" NPS Branch
080Header Size8" NPS Main Run
300RFClassClass 300 Raised Face
316LMaterialASTM A182 F316L

Technical specifications

Design CodeASME B16.5 / MSS SP-97

Operational Notes

Curved base contours fit snugly onto the header pipe for easy weld deposition.

Product Overview

Nipoflanges provide substantial labor and inspection savings while dramatically boosting joint fatigue resistance on vibrating high-pressure pipelines.

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