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Gages

Pg Conduit Thread Ring Gages

  • Checks threads of pipe fittings used for electrical wiring
  • Pg Steel Conduit Thread Plug Gages manufactured per DIN 40431
  • Inspects conduit threads
  • GO thread ring ensures the maximum material condition is met
  • NOGO plain ring gage checks the major 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 40431 GO PGCRG1
$409.00
pg-7 DIN 40431 NOGO PGCRNG1
$327.00
pg-7 DIN 40431 DOUBLE-END PGCRDE1
$736.00
pg-9 DIN 40431 GO PGCRG2
$428.00
pg-9 DIN 40431 NOGO PGCRNG2
$342.00
pg-9 DIN 40431 DOUBLE-END PGCRDE2
$770.00
pg-11 DIN 40431 GO PGCRG3
$446.00
pg-11 DIN 40431 NOGO PGCRNG3
$357.00
pg-11 DIN 40431 DOUBLE-END PGCRDE3
$803.00
pg-13.5 DIN 40431 GO PGCRG4
$458.00
pg-13.5 DIN 40431 NOGO PGCRNG4
$366.00
pg-13.5 DIN 40431 DOUBLE-END PGCRDE4
$824.00
pg-16 DIN 40431 GO PGCRG5
$371.00
pg-16 DIN 40431 NOGO PGCRNG5
$297.00
pg-16 DIN 40431 DOUBLE-END PGCRDE5
$668.00
pg-21 DIN 40431 GO PGCRG6
$380.00
pg-21 DIN 40431 NOGO PGCRNG6
$304.00
pg-21 DIN 40431 DOUBLE-END PGCRDE6
$684.00
pg-29 DIN 40431 GO PGCRG7
$438.00
pg-29 DIN 40431 NOGO PGCRNG7
$350.00
pg-29 DIN 40431 DOUBLE-END PGCRDE7
$788.00
pg-36 DIN 40431 GO PGCRG8
$490.00
pg-36 DIN 40431 NOGO PGCRNG8
$392.00
pg-36 DIN 40431 DOUBLE-END PGCRDE8
$882.00
pg-42 DIN 40431 GO PGCRG9
$551.00
pg-42 DIN 40431 NOGO PGCRNG9
$441.00
pg-42 DIN 40431 DOUBLE-END PGCRDE9
$992.00
pg-48 DIN 40431 GO PGCRG10
$585.00
pg-48 DIN 40431 NOGO PGCRNG10
$468.00
pg-48 DIN 40431 DOUBLE-END PGCRDE10
$1,053.00

Pg Steel Conduit Threads are manufactured per DIN 40430. WESTport manufactures Pg Steel Conduit Thread Ring Gages per DIN 40431.

The Pg thread series is designed for use with 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 40431 standard for P1 steel conduit threads specifies the requirements for using GO thread ring gages and plain NOGO ring gages to inspect the conduit threads. A unique aspect of the Pg Steel Conduit Thread Ring 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 ring gage checks the major diameter or crest of the thread and verifies that minimum material condition is met. The GO threaded ring works normally by ensuring the maximum material condition is met.

Pg Conduit thread ring gages are easy to use:
1. The GO Threaded ring 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 ring gage must not be able to pass over the threaded work piece.

Gages