** Quail Tools, LP. has produced this spread sheet for general information only and it is not intended for design purposes. Although every effort has been made to maintain the accuracy and reliability of it's contents, Quail Tools, LP. in no way assumes responsibility of liability for any loss, damage or injury resulting from the use of information and data herein. All applications for the material described are at the user's own risk and are the user's responsibility. The user should consider all field conditions along with other combined factors which may affect the final string design used in the field. Safety factors should be used in the final string design. All figures are subject to change without notice.

Shaffer Specifications


Bowen Double BOP

Shaffer Engineering and Dimensional Data

Bore Size (inches) 4-1/16" 7-1/16" 7-1/16" 11" 11" 13-5/8" 16-3/4" 21-1/4" 21-1/4" 30"
Working Pressure (psi) 10M 5M 10M 5M 10M 5M 5M 2M 5M 1M
Ring Groove (top) BX-155 RX-46 RX-156 BX-54 RX-158 RX-160 RX-162 RX-73 RX-164 BX-95
Ring Groove (bottom) BX-155 RX-46 RX-156 BX-54 RX-158 RX-160 RX-162 RX-73 RX-164 BX-95
Head Type BOLTED BOLTED BOLTED BOLTED WEDGE BOLTED WEDGE BOLTED WEDGE BOLTED
Old Nominal Size   6" 6" 10"            
Operating                    
Chamber (Closing) 2.38 4.57 17.2 18.67 30.58 23.58 33.26 32.59 61.37 122
Volume gal. (Opening) 1.95 3.21 13.95 14.59 24.67 17.41 25.61 16.92 47.76 55
Full Piston Stroke (inches)                    
Hydraulic Port Size - NPT .25" 1" 1.25" 1.25" 2" 1.25" 2" 1.5" 2" 2"
Height - A (inches) 25.5" 30.875" 42.25" 41.5" 53" 40.69" 51.94" 46.13" 66" 65.63"
Body Diameter - B (inches) 23" 29" 43" 44.25" 57" 50" 60" 49" 71" 71"
Weight (lbs) 1850 3175 10600 9550 26140 9500 22900 10850 44500 28750