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General Brazing Guidelines - MCAA

General BrazingGuidelinesNational Certified Pipe welding BureauCopyright 2009 National CertifiedPipe welding Bureau1385 Piccard DriveRockville, MD 20850301 869 5800 Fax: 301 990 9690 The National Certified Pipe welding Bureau (NCPWB) gratefully acknowledges the permission from ASTM to use their data on copper tube sizes in this MANDATORY PRACTICES Page Safety Practices .. 1 Brazing Procedure 2 Repair of Brazed Joints .. 2 RECOMMENDED PRACTICES General .. 4 Measuring .. 4 Cutting .. 6 Cleaning .. 7 Application of Flux .. 9 Assembly .. 10 Purging .. 11 Heating .. 11 Application of Brazing Metal .. 13 Postbraze Cleaning .. 14 Inspection .. 15 Identification of Copper Tube .. 16 FIGURES Figure 1 Typical Pipe Braze Joint Nomenclature .. 17 TABLES Table 1 Depth of Sockets for Solder Joint Fittings.

These General Brazing Guidelines are intended to pro-vide background information and supplementary in-structions to contractors and their brazers who are us-ing National Certified Pipe Welding Bureau Welding (NCPWB) Brazing Procedure Specifications (BPSs). This document is divided into three parts: Mandatory

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