Clamp Bolt Tightening Sequence
BOLT TIGHTENING SEQUENCE FOR API CLAMP USING 4 BOLTS. Note: Washers must have proper installation orientation, as shown above….
Clamp Hub Ring Groove Repair
Caution: Hub ring grooves cannot have repair performed by simply skim cutting the Hub face and deepening the…
Inspection of Older Cast Steel Clamps
Prior to 1986 most manufacturers that made clamps, to fit clamp hub connections that utilized API ring gaskets as seal…
API Clamp Test Pressures and Applied Loads
API Spec 16A clamps differ from all other API equipment in regard to design and hydrotest. Clamps…
API Clamp Inspection and Storage
Clamps Inspection requires a thorough cleaning, removing all dirt, paint, rust, etc. Inspection should include particular care…
Clamp Installation Instructions
You may install a WOODCO USA® BRAND clamp in any orientation desired. Prior to installation of the…
API Spec 16A Hub Identification
Clamp hub connected equipment existed before the 1st Edition of API 16A appeared. API adopted many of…
A Brief History of Wellhead Hubs and Clamps
In the middle 1950’s operators in the oilfield industry began seeking faster and more adaptable ways to…