ISO 7.2 - 2008

Pipe threads where presure-tight joints are made on the threads.

Taper full form threaded plug gauges No. 1 and No. 2 are available in sizes from 1/16" to 6". Gauges are manufactured from through hardened tool steel and heat treated to a hardness of 60-64 HRc. 

Guide for selecting gauges No. 1 and No.2   (AS ISO 7.2 - 2008 Table A.1)

Thread                 Pitch Diametertogether with Major Diameter            Accommodation length              
Taper Rc Gauge No.1 and/or No. 2 Gauge No. 2
Parallel Rp Gauge No.1 and/or No. 2 Gauge No. 2

 

Gauge No. 1

This gauge is a 1:16 taper full form threaded plug gauge and is suitable for checking the major diameter and pitch diameter at the gauge plane of internal parallel (Rp) threads and internal taper (Rc) threads. (AS ISO 7.2 - 2008 p4)

Gauge No. 2 

This gauge is a 1:16 taper full form threaded plug gauge with relief of threads and is suitable for checking the major diameter and pitch diameter at the gauge plane and accommodation length of internal parallel (Rp) threads and internal taper (Rc) threads. (AS ISO 7.2 - 2008 p5) 

Applicable Standard

  • AS ISO 7.2 - 2008
  • Pipe threads where presure-tight joints are made on the threads.
  • Note prevoius standard was AS 1722 Part 1 - 1975.

Delivery

No. 1 and 2 gauges from 1/8" to 4"  are held in stock ready for immediate delivery.

 

Reference List

AS ISO 7.2 - 2008   Pipe threads where presure-tight joints are made on the threads. Part 2: Verification by means of limit gauges

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