spacing of the lugs 116 could be used to achieve the same result preferred materials of construction for the fitting body 102 are thermoplastic materials especially polyvinyl chloride pvc chlorinated polyvinyl chloride cpvc and glass filled polypropylene the lock ring 104 can be provided as a flat annular ring with two rectangular notches located on the inner diameter of the ring and protruding perpendicularly outward toward the outside diameter for example a lock ring 104 of the present disclosure includes an annulus 118 having an inner diameter d in that is just greater than the first body portion diameter d 1 and that is less than the second body portion diameter d 2 in this regard a user can assemble the lock ring 104 to the fitting body 102 by inserting the grooved end 106 though the annulus 118 until the annulus 118 of the lock ring 104 abuts the shoulder 112 of the fitting body 102 an outer diameter d out of the lock ring 104 can be of any suitable diameter and is preferably greater than an inner diameter of the nut 30 the lock ring 104 includes a boss 120 extending from the outside wall of the annulus 118 to form an eyehole for securingly receiving an end of the hook and chain assembly 34 the boss 120 can be provided for example so as to be approximately semi circular in shape and to have a hole extending though the center thereof in some embodiments two or more bosses can be provided to be protruding from the outside wall of the lock ring 104 with one or more bosses allowing for attachment of support means such as cables wires etc to support the valve assembly 10 a plurality of notches 122 are.