Abstract: The present invention provides an in-line fluid flow control valve adapted and designed for installation in an existing fluid line carrying fluid under pressure, without the necessity of interrupting flow of fluid through such line, and further provides apparatus for installation of the valve of the invention and a method of installation of the valve of the invention. The valve of the invention generally comprises a valve body having a sleeve to be placed around the fluid line and a neck extending outwardly from the sleeve, a double acting and hydraulically balanced valve member to seal the fluid line and the neck of the valve body, and a valve actuating assembly to operate the valve and to maintain proper alignment of the valve member.

Abstract: An apparatus and method of removing and replacing the main water supply valve of a high pressure hydrant without the necessity of shutting off the supply of water to the hydrant, wherein the apparatus generally comprises a hydrant adapter for interconnection of the apparatus to a variety of hydrant configurations, a slide valve chamber and slide valve assembly, a main body, a valve seat wrench and interconnected elongate wrench shaft moveable through the interior of the apparatus, an upper seal assembly to form a water tight sliding seal around the wrench shaft, a valve lifting tool moveable through the interior of the elongate wrench shaft in water tight relation therewith, a wrench activating assembly, a plurality of bleed valves for removal of water from selected portions of the apparatus, and a bypass valve assembly for equalization of water pressure between selected portions of the apparatus.