The Definitive Guide to Sentinel II, Type 81, and Townsend BOP Rubbers: Why Size Matters More Than the Name
If you work in oilfield pressure control, well servicing, or workover operations, you have likely run into a frustrating paperwork headache. You need to order replacement ram rubbers for a square-body blowout preventer (BOP), but everyone on the rig calls the part something completely different. One hand tells you to order a Shaffer Sentinel II. […]