Alloy Steel as per ASTM A182 F1, F5, F9, F11, F22, F91 Shoulder Plugs for Heat Exchanger
Alloy Steel as per ASTM A182 F1, F5, F9, F11, F22, F91 Shoulder plugs are made for plug type header boxes in air cooled heat exchangers or fin fan air coolers. A shoulder plug and gasket are located opposite 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.
Alloy Steel as per ASTM A182 F1, F5, F9, F11, F22, F91 Shoulder Plugs are installed in upstream offshore/onshore oil production and initial processing installations.
Header Plug / Shoulder Plug Sizing Chart | ||||
| A | B | Hex | ||
| Tube OD | Plug Diameter | UNF Thread | Under Head | Size |
5/8″ | 3/4″ | 16 | 3/4″ | 1″ |
7/8″ | ||||
1″ | ||||
1″ | 1 1/8″ | 12 | 3/4″ | 1 3/8″ |
7/8″ | ||||
1″ | ||||
1 1/8″ | ||||
1 1/4″ | ||||
1 3/8″ | ||||
1 1/2″ | ||||
1 1/4″ | 1 3/8″ | 12 | 3/4″ | 1 5/8″ |
7/8″ | ||||
1 1/8″ | ||||
1 1/4″ | ||||
1 1/2″ | ||||
1 1/2″ | 1 5/8″ | 12 | 1″ | 1 7/8″ |
1 1/8″ | ||||
1 1/4″ | ||||
1 3/8″ | ||||
1 1/2″ | ||||
2″ | 2 1/8″ | 12 | 1 1/4″ | 2 3/8″ |
