Hydraulically operated valve wrench

Details Hydraulically operated valve wrench Hydraulically operated valve wrench

B - Operations, Transporting

25

B

81/34

B25B 21/00 (2006.01) B25B 13/00 (2006.01) B25B 13/48 (2006.01)

Patent

CA 1086109

HYDRAULICALLY OPERATED VALVE WRENCH Abstract of the Disclosure A hydraulically operated wrench comprised of a body saddle, bonnet clamp and hydraulic system providing controlled high torque turning force for in-line assembly and disassembly of threadedly connected valve housing components such as the body and bonnet. With the saddle and clamp separately secured to the valve body and bonnet, respectively, a pump actuated piston/cylinder is mounted on the saddle with its piston end secured to the clamp. The axis of the piston/cylinder is aligned with a force vector normal to the bonnet radius such that when the piston is extended outward by operation of a jack pump in response to hydraulic pressures imposed against the piston/cylinder it imposes a high force turn- ing moment against the bonnet relative to the body.

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