| Nominal Bore / Aperture |
18.75 inches |
| Working Pressure (Max Rated) |
15,000 psi |
| Type |
Ram BOP (single or double ram) |
| Ram Operator Styles |
Commonly Ultralock II, Poslock, or standard manual-lock; booster operators may be used for shear/extra closing force |
| Cavity Body |
Heavy alloy steel, heat treated; includes wear rings, replaceable components in high-wear areas |
| Doors / Bonnet |
Boltless or bolted door types, depending on model; doors engineered for fast ram changes |
| Seals / Trim |
High performance elastomer/composite sealing; internal trim Hâ‚‚S rated; lip-type pistons and ram shaft seals with secondary seals in many models |
| Hydraulic Closing Pressure |
Typically hydraulic system rated to 3,000-5,000 psi to actuate the rams, depending on operator setup |
| Ports / Outlets |
Side outlets for pressure relief or kill/control lines; port sizes depend on specific cavity and operator setup |
| Weight |
Substantial – many units weigh tens of thousands of pounds, depending on whether it's double ram, type of operator, etc. |
| Height / Stack Dimensions |
Large stack height; exact height depends on whether single or double ram assembly, type of operator, door design, etc. |
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