Introduction to Header Plugs

Header Plugs & Shoulder Plugs for Heat Exchanger

Shoulder plugs or header plugs are prepared for plug type header boxes in air cooled heat exchangers or fin fan air coolers. A shoulder plug and gasket are located contrasting each tube which allows access for inspection and cleaning of individual tubes. Spare plugs and gaskets may be needed to replace originals during routine maintenance or used to plug leaking tubes.

Header Plugs are installed in upstream offshore/onshore oil production and initial processing installations. Header Plugs are finished from Stainless Steel 316, SS 304, Duplex, Super Duplex, Carbon Steel, Brass, Inconel, Hastelloy, Titanium and Monel. They are also obtainable in various Alloy Steel.Common material for Gaskets is Soft Iron , SS 304 and SS 316 .

Most Common sizes are 3/4″ UNF ,1 1/8″ UNF ,1 3/8″ UNF ,1 5/8″ UNF ,2 1/8″ UNF  .

For entire range of Heat Exchanger Tube Plugs ,Ferrules and Inserts click here . For Heat Exchanger tube plugs click here .

Why buy from FAV?

1) Available in material of your choice
2) Customization possible to suit your exact Heat Exchanger Needs
3) Faster Delivery
4) Material Test Report available
5) Gasket available in Soft Iron as we as other grades

Some Common Header Plug Material Options

  1. Stainless Steel 316
  2. Stainless Steel 304
  3. Stainless Steel 316L
  4. A350-LF2 CL1
  5. CS A 105
  6. Duplex 2205 / F51
  7. Super Duplex 2507 / F 53
  8. Hastelloy C 276
  9. Inconel 600/800
  10. Inconel 625/825
  11. Titanium Gr 2
  12. Monel 400/500
  13. SA240-GR410
Header Plugs

Datasheet for Header Plug / Shoulder Plug /UNF Plug

Header Plug / Shoulder Plug Sizing Chart
BAHex
Tube ODPlug DiameterUNF ThreadUnder HeadSize
5/8″3/4″163/4″1″
7/8″
1″
1″1 1/8″123/4″1 3/8″
7/8″
1″
1 1/8″
1 1/4″
1 3/8″
1 1/2″
1 1/4″1 3/8″123/4″1 5/8″
7/8″
1 1/8″
1 1/4″
1 1/2″
1 1/2″1 5/8″121″1 7/8″
1 1/8″
1 1/4″
1 3/8″
1 1/2″
2″2 1/8″121 1/4″2 3/8″

Some Common Sizes for Header Plugs are

FAV Header Plug with 1 Gasket
Material: SS 316
Size: 3/4"-16 UNF
Thread Length: 1"

FAV Shoulder Plug with 1 Gasket
Material: SS 304
Size: 1-1/8"-12 UNF
Thread Length: 0.875"

FAV Head Plug with 1 Gasket
Material: Carbon Steel A 105
Size: 1-3/8"-12 UNF
Thread Length: 1"

FAV Header UNF Plug with 1 Gasket
Material: A350 LF2 - CL1
Size: 1-5/8"-12 UNF
Thread Length: 0.875"

FAV Header Plug with 1 Gasket
Material: Monel 400
Size: 2-1/8"-12 UNF
Thread Length: 1"