Abstract: An apparatus for mounting a flow measuring device between an input fluid line and an output fluid line has a sleeve with an opening therethrough mounted to a base and capable of reciprocating between extended and retracted positions. The sleeve secures the flow measuring device in the extended position and releases the device in the retracted position. A cam secures the sleeve in the retracted or extended positions. A valve is fixed to the sleeve such that, when the sleeve is in its extended position, fluid flows around the valve and through the sleeve. When the sleeve is in its retracted position to remove the flow measuring device, the valve seats on the input fluid line.

Abstract: An assembly is described for securing a flow conditioning device such as a water meter between fittings of a fluid conduit along with another conditioning device such as a backflow preventer. The assembly includes a manifold including two fluid passageways pivotably connected to return bends that facilitate mounting of the meter along an axis parallel to the axis of the conduit. Fittings along the manifold enable one end of the manifold to be mounted to the conduit while the remaining end mounts the backflow preventer. The manifold ends are spaced such that the one manifold end and the remote end of the mounted backflow preventer are spaced by a distance substantially equal to the distance between mounting fittings on the meter. Additional provision is supplied for mounting of an accessory such as a pressure relief valve on the manifold.

Abstract: A holder releasably mounts a water flow control device to a water supply line to enable installation and removal of the device from a meter "pit". The holder includes a clamping linkage that can be selectively operated from above ground to release or clamp the device in position between saddle members of the holder relative to the water line. Gasket sleeves are mountable over pipe connectors of the water control device and are releasably received in saddle members of the holder. The sleeves are removable with the flow control device.