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Pg Conduit Thread Plug Gages

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Pg Conduit Thread Plug Gages

  • Checks threads of pipe fittings used for electrical wiring
  • Pg Steel Conduit Thread Plug Gages manufactured per DIN 40431
  • Designed specifically for the thin wall cross section of the steel conduit
  • GO thread plug ensures the maximum material condition is met
  • NOGO plain plug gage checks the minor diameter or crest of the thread
  • Manufactured to the high end of the specification for longer wearability

Pg thread profile chart

Size Standard Member Item # Price
pg-7 DIN 40431GOPGCPG1$130.00
pg-7 DIN 40431NOGOPGCPNG1$104.00
pg-7 DIN 40431DOUBLE ENDPGCPDE1$245.00
pg-9 DIN 40431GOPGCPG2$130.00
pg-9 DIN 40431NOGOPGCPNG2$104.00
pg-9 DIN 40431DOUBLE ENDPGCPDE2$245.00
pg-11 DIN 40431GOPGCPG3$139.00
pg-11 DIN 40431NOGOPGCPNG3$111.00
pg-11 DIN 40431DOUBLE ENDPGCPDE3$261.00
pg-13.5 DIN 40431GOPGCPG4$145.00
pg-13.5 DIN 40431NOGOPGCPNG4$116.00
pg-13.5 DIN 40431DOUBLE ENDPGCPDE4$273.00
pg-16 DIN 40431GOPGCPG5$145.00
pg-16 DIN 40431NOGOPGCPNG5$116.00
pg-16 DIN 40431DOUBLE ENDPGCPDE5$273.00
pg-21 DIN 40431GOPGCPG6$145.00
pg-21 DIN 40431NOGOPGCPNG6$116.00
pg-21 DIN 40431DOUBLE ENDPGCPDE6$273.00
pg-29 DIN 40431GOPGCPG7$178.00
pg-29 DIN 40431NOGOPGCPNG7$142.00
pg-29 DIN 40431DOUBLE ENDPGCPDE7$333.00
pg-36 DIN 40431GOPGCPG8$201.00
pg-36 DIN 40431NOGOPGCPNG8$161.00
pg-36 DIN 40431DOUBLE ENDPGCPDE8$379.00
pg-42 DIN 40431GOPGCPG9$244.00
pg-42 DIN 40431NOGOPGCPNG9$195.00
pg-42 DIN 40431DOUBLE ENDPGCPDE9$456.00
pg-48 DIN 40431GOPGCPG10$260.00
pg-48 DIN 40431NOGOPGCPNG10$208.00
pg-48 DIN 40431DOUBLE ENDPGCPDE10$486.00


Pg Conduit Thread Plug gages are used for checking threads of pipe fittings used for electrical wiring. The standard; DIN 40431 P2 Steel Conduit Thread, Thread Gauges, GO and NOGO specifies the requirements for these gages.
WESTport manufactures Pg Steel Conduit Thread Plug Gages compliant to the standard. The Pg thread series is designed specifically for the thin wall cross section of the steel conduit. The thin wall thickness requires a shorter profile thread that will not break through the outside diameter of the steel conduit during the machining process. The Pg conduit thread form features an 80° included angle and a shorter profile than the 60° included angle found in the Unified National thread series and the Metric thread series.
The DIN 40430 standard for P1 steel conduit threads specifies the requirements for using GO thread plug gages and plain NOGO plug gages to inspect the conduit threads. A unique aspect of the Pg Steel Conduit Thread Plug Gage is that the NOGO member is a plain cylindrical gage. This works because as the thread is machined the crest if the thread comes to a point. As the thread size is changed, the position of the point changes and as a result can be measured. The plain NOGO plug gage checks the minor diameter or crest of the thread and verifies that minimum material condition is met. The GO threaded plug works normally by ensuring the maximum material condition is met.

Pg Conduit thread plug gages are easy to use:
1. The GO threaded plug gage must be capable of being screwed by hand without undue force over the full length of the threaded work piece
2. The NOGO plain plug gage must not be able to pass over the threaded work piece

WESTport Manufactured Products. 24th Anniversary Servicing Industry Worldwide (1989-2013)