Adjustable Choke (B-29™)

• Thumb screw secures stem setting position.
• Stem can be lubricated with standard grease gun.
• Available carbide trim for increased abrasion resistance.

From the largest range of stuffing boxes, to the most complete selection of casing heads and tubing heads, Hercules equipment is known throughout the oil field for its superior quality. R&M Energy Systems is the industry leader for new technology, products and the complete hookup for working pressures up to 3000 PSI (20,700 kPa). Hercules products are designed relative to API, ASME, ANSI and NACE MR-O1-75 specifications.