Abstract: A screened fluid flow regulator assembly which is adapted to be held by a pair of fittings within the mouth of a fluid flow channel, comprising a combined screen and flow regulator housing, a regulator within the housing and a cap for sealing the regulator in the housing.

Abstract: A fluid flow regulator assembly which is adapted to be held by a pair of fittings within the mouth of a fluid flow channel, comprising a flow regulator housing, a regulator within the housing and a cap for sealing the regulator in the housing.

Abstract: A screened fluid flow regulator assembly which is adapted to be held by a pair of fittings within the mouth of a fluid flow channel, comprising a combined screen and flow restrictor housing and a cap for sealing the restrictor in the housing.

Abstract: A fitting having a weakened section therein is positioned between a flow control device and a water outlet such as a sprinkler head so that if the sprinkler head is subjected to a lateral blow, the fluid conduit will break at the weakened section, but yet the flow out of the broken conduit will be restricted by the flow control device.

Abstract: An integrally molded, elastomeric fluid flow restrictor for use in pipes to even the volumetric time rate of flow of fluid through a pipe regardless of applied fluid pressure. The restrictor has a flow passage orifice which elastically responds to compressional fluid pressure to vary in size inversely to applied pressure. The restrictor includes integrally attached to the main body upstream and downstream annular flanges of an outer diameter less than the main body diameter, thereby defining a shoulder on the main body, and the flanges have an inner diameter larger than the flow orifice. The shoulder of the main body is beveled slightly inward to seat against a fitting to provide a tight seal in actual operation. A fitting adapted to the restrictor which fits into a hydraulic system is also disclosed.