Rotating sprinkler head valve

An apparatus for restricting flow within a rotating sprinkler head valve comprising:

• an upper assembly and a lower assembly connected to said upper assembly, said lower assembly including a generally tubular bottom helix member and a short tubular base top member, said generally tubular bottom helix member having a top end and a bottom end, said generally tubular bottom helix member having a longitudinal aperture therethrough, an upper narrow tubular section at the top end, a lower generally tubular main body at the bottom end, the lower generally tubular main body having an upper helical surface extending substantially completely around the upper narrow tubular section, and a vertical flag extending upwardly from the upper helical surface of the bottom helix member, and said short tubular base top member including an upper portion and a lower portion, said upper portion including an internal annular indentation that is configured to receive an exterior annular rib of the upper male portion, and said lower portion including a downwardly extending inner tubular portion and a lower interior edge surface with a helical lower surface forming an adjustable helical aperture in cooperation with said bottom helix member, and said base top member having an interior surface defining a recessed inner helical lip along said lower interior edge surface of the downwardly extending inner tubular portion, said recessed inner helical lip configured to receive said upper helical surface of the bottom helix member and said recessed inner helical lip being rotatable with respect to said upper helical surface of the bottom helix member for adjusting said helical aperture;
• and
• a generally tubular strainer adapter connected with said bottom helix member, said generally tubular strainer adapter having an upper portion, a lower portion, and an interior tubular chamber extending through said generally tubular strainer adapter and having an interior surface, an internal transverse slotted plate extending transversely across said interior tubular chamber including a plurality of slots allowing flow through the strainer adapter, said cylindrical shaft extending vertically and axially through said interior tubular chamber of said generally tubular strainer adapter.