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ASME B16.5 Tongue and Groove Pipe Flanges (T&G)

Skyland Tongue and Groove Flanges (T&G) must be used in matched pairs: one flange features a raised circular ring (Tongue) while the mating flange features an identical matching depression (Groove). The gasket is fully enclosed and protected inside the groove, preventing gasket blowout under extreme pressures and eliminating fluid contact with outer atmosphere.

Manufactured to ASME / ANSI B16.5 standards in Large and Small Tongue & Groove designs

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

Sizes: 1/2" to 24" NB (DN 15 to DN 600)

Fully confined gasket groove prevents gasket extrusion and blowout under extreme vacuum or pressure

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Confined Sealing

ASME B16.5 Tongue & Groove Flange Data

Select tongue flange or groove flange, nominal size, and class.

StandardASME B16.5
PairingMatched Tongue & Groove
Classes150# to 2500#
Sizes1/2" to 24"

Facing Style

TONGUETongue Flange (T)
GROOVEGroove Flange (G)
PAIRMatched Set (1 Tongue + 1 Groove)

Part Number Example

SKL-TG-040-300-316L-PAIR

SKLBrandSkyland Metal & Alloys
TGTypeTongue & Groove Flange Set
040Size4" NPS (DN 100)
300ClassClass 300
316LMaterialASTM A182 F316L
PAIRStyleMatched Pair Set

Technical specifications

Design CodeASME B16.5

Operational Notes

Essential for severe toxic gas services where zero gasket blowout is an absolute safety requirement.

Product Overview

The tongue-and-groove geometry ensures automatic centering of the gasket and zero gasket exposure to external corrosives.

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