Gamma Plugs
Radiographic & Gamma Plugs (i.e. Access Hole Plugs, Gamma Plugs, or X-Ray Plugs) are inserted and seal welded to close access holes used for the radiographic inspection of pipe butt welds where the radiographic source is located on the inside of the pipe. RT Plugs are manufactured in accordance with PFI ES-16.
| PIPE WALL THICKNESS | STYLE | A | B | C | D | H | A105 | F11 | F22 | 314 | P91 | P92 |
| Less than 0.625" | 1 | 1.25 | --- | 1 - 8UNC - 3A | --- | 0.625 | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. |
| Greater than 0.625" and equal to 1 3/8" | 1 | 1.25 | --- | 1 - 8UNC - 3A | --- | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | |
| Greater than 1 3/8" and equal to 3" | 2 | 1.25 | 1.25 | 1-8UNC-3A | 0.812 | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | |
| Greater than 3" and equal to 5" | 2 | 1.75 | 1.50 | 1-1/2 - 6UNC - 3A | 1.234 | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | P.O.A. | |
| Greater than 5" | 2 | 2.25 | 2.00 | 2-4-1/2UNC - 3A | 1.656 | P.O.A | P.O.A. | P.O.A. | P.O.A. | P.O.A | P.O.A. |
Non stocked Gamma plugs available in A105, F11, F22, F91, F92, Stainless or your specified material. Quantity discounts are available for orders of 100 or more.
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A105 Gamma Plugs
A105 steel is a most commonly used carbon steel material grade that is used to manufacture forged piping components such as flange and forged fittings of small diameter piping for gamma/X-ray/rad...
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F11 Gamma Plugs
The ASTM A182 F11 steel is the standard specification for forged or rolled alloy and stainless-steel pipe flanges, as well as forged fittings and all types of parts and valves for high-temperatur...
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F22 Gamma Plugs
The F22 grade is a low-alloy steel, and it is very deep-hardening and heat-treatable, used for gamma/X-ray/radiographic plugs. Furthermore, it normally contains about 12% carbon, 2.25% chromium, ...
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314 Gamma Plugs
Stainless steel grade 314 has excellent high-temperature resistance characteristics among the chromium-nickel steels series, and is an excellent option for gamma/X-ray/radiographic plugs. The sil...
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P91 Gamma Plugs
P91 is a chrome moly alloy metal that contains excellent strength and temperature resistance for gamma/X-ray/radiographic plugs. It is designed for enhanced creep strength, making it a creep...
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P92 Gamma Plugs
The alloy steel P92 is an improved version of ASTM A335 P91 alloy which has deliberate addition of tungsten, vanadium, niobium, decreased amount of molybdenum to fine-tune to ferrite/austeni...
