Abstract: Disclosed are solvent cement formulations having beneficial stability and performance characteristics that include a thermoplastic resin, one or more organic solvents, an inhibitor of an oxidation-reduction reaction, and a heat stabilizer.

Abstract: A waste and overflow system for a bathtub includes an overflow assembly, a drain assembly, and a plumbing assembly. The overflow assembly or kit includes an elbow pipe attachable to the plumbing assembly, a seal member positioned between an end of the elbow pipe and the bathtub, and a retainer ring that is threadingly connected to the elbow pipe to sandwich the seal member between a portion of the elbow pipe and the outer surface of the bathtub. The overflow assembly or kit further includes a faceplate operatively connected to the retainer ring. The faceplate can be formed as a screwless faceplate directly connected to the retainer ring in a first operative mode or a screwable faceplate attached by a screw to an adapter that is connected to the retainer ring in a second operative mode.

Abstract: The present invention relates to an air admittance valve (AAV) that operates automatically at low pressures to selectively open and close an air passageway between an inlet and an outlet. The AAV comprises a valve body having a centrally disposed, internal valve chamber in communication with the ambient environment, and having a valve seat. The AAV includes a sealing member having a flexible diaphragm that is fastened to a support ring, the ring defining one or more lugs on an outer periphery thereof. The AAV further includes a cap member within which the sealing member may be disposed, such that the one or more lugs may interact with an interior surface of the cap. The sealing member may selectively seal or unseal from the valve seat in response to pressure differentials between the inlet and the outlet.

Abstract: A wax ring tray configured to store a wax ring therein includes a base, a first flexible member and a second flexible member. The first and second flexible members are positioned radially outward from a center of the base, and extend from the base to respective first and second ends. The first flexible member and the second flexible member are configured to transition between respective first positions and second positions. In the first position of the first flexible member, the first end of the first flexible member is positioned radially outward relative to the first end in the second position. In the first position of the second flexible member, a second end of the second flexible member is positioned radially outward relative to the second end of the second flexible member in the second position.

Abstract: The disclosure is directed to a pipe clamp configured to support a pipe from a mounting surface. The pipe clamp includes a mounting post, arm, and hinge. The mounting post has a first post end and a second post end that includes a first coupling element. The mounting post defines a first recess. The arm has a first arm end and a second arm end that includes a second coupling element configured to couple to the first coupling element. The arm defines a second recess. The hinge is positioned between the mounting post and the arm and is connected to the first post end of the mounting post and to the first arm end of the arm. The mounting post and arm are rotatable about the hinge from an open position to a closed position. In the closed position the first coupling element is coupled to the second coupling element.

Abstract: Provided are primer formulations for solvent cement bonding comprising cyclopentanone and, optionally, at least one additional organic solvent. The primer formulations are effective for solvent cement bonding plastic components together, wherein the plastic components may include ABS, PVC, or CPVC pipes and/or fittings.

Abstract: A system of pipe insulating sleeves includes a series of elastomeric foam insulating sleeves that are capable of opening up to, and beyond, 180 degrees, to accommodate and capture an undersink pipe. The disclosed system may include a number of different sleeves that are capable of coupling to one another at respective couplers so as to form the system. The sleeves may include fastening mechanisms to retain the sleeves in the closed configuration while capturing the pipe, so as to create a smooth, streamlined appearance that is aesthetically pleasing. Also disclosed is a method of installing the sleeves. The sleeves are made of an elastomeric foam material that has heat insulating properties, and which may also have antibacterial and antimicrobial properties that make it particularly advantageous for use in undersink pipe insulating.

Abstract: Described herein are embodiments of a drain adapter device configured as a low-profile drain that provides a dry seal between a drain base and an installed floor drain. The low-profile drain is configured to receive threaded drain gates or strainers. In some embodiments, the drain adapter device provides a low-profile drain system that includes universal receiving features configured to engage with strainers, drain gates, caps, and the like.

Abstract: A closet flange configured to secure a toilet to a drain pipe. The closet flange includes a body portion and a flange portion. The flange portion extends radially outward from an upper end of the body portion. The flange portion comprises at least one slot and a shoulder. The at least one slot extends along the flange portion from a receiving end to a retaining end. The at least one slot has an opening that extends from the receiving end to the retaining end. The shoulder is positioned below the opening of the at least one slot and extends from the receiving end to the retaining end. The shoulder includes a support surface that extends at an angle offset from the upper surface of the flange portion.

Abstract: A bath waste and overflow drain system of the present disclosure may comprise both drain and overflow assemblies. The drain assembly generally includes a drain elbow, drain gasket, drain spud, drain trim, and drain stopper. The drain trim may possess weep channels that urge stagnated water from a periphery of the drain spud and into the drain. The overflow assembly generally includes an overflow elbow, overflow gasket, retaining nut, and overflow faceplate. The overflow faceplate may have bayonet channels that engage with a protrusion of the overflow elbow so as to accommodate variances in tub design when effecting an installation. The system according to an embodiment may also comprise test plugs of the overflow and drain varieties which are, together, operable to permit pressure-related tests of the system prior to completing an installation. The overflow and drain test plugs are simple to manipulate and install/remove with quick-engaging, complementary locking features.

Abstract: A system of supply valves according to the present invention may include a first and second supply valve, each of which is connectable to a terminal end of a water supply line so as to provide direct access to the water supply. The system may be disposed within a modular plumbing supply box, and the valves may be spaced from one another by a reduced separation, X1. Each supply valve of the system may further include a top portion and bottom portion that are interconnectable and which form a water-proof seal therebetween. The top portion may comprise ridges that cooperate with channels of the bottom portion when the two portions are interconnected to form passageways. The top and bottom portions may be positionally and rotationally locked to one another, for example, using a wireform clip and inserting legs of the wireform clip through the passageways.

Abstract: A dual stage pressure relief valve for relieving pressure. The pressure relief valve includes a main body, a poppet bulb, a pilot piston, and a poppet cap. The main body defines a main channel that extends from a first opening to a second opening. The poppet bulb defines a first flow channel being in fluid communication with the main channel. The pilot piston defines a reset channel in fluid communication with the first flow channel of the poppet bulb. The cap channel has a diameter that is greater than a diameter of the reset channel. The poppet cap defines a cap channel in fluid communication with the reset channel of the pilot piston and with a pressure cavity defined by the poppet cap and an end of the main body.

Abstract: Provided are solvent cement formulations comprising some or all of tetrahydrofuran, cyclohexanone, methyl ethyl ketone, acetone, a thermoplastic resin, silica, and, a solvent soluble acrylic copolymer associative thickener. The disclosed formulations contain a reduced complement of volatile organic compounds (VOCs) relative to conventional cement formulations, yet are capable of meeting the requirements for regular-, medium-, and heavy-duty applications. The use of specialized associative thickener components confers a required degree of viscosity while enabling a reduction in the concentration of VOCs, such as tetrahydrofuran.

Abstract: A system of modular boxes as shown and described can be interconnected directly to one another via connectors that are integrally molded with the sidewalls of the boxes. The connectors of the boxes may include fastener receiving apertures for receiving a stud-mounting fastener therethrough. The connectors are thin and flexible, such that insertion and forcible tightening of a fastener through the aperture will cause a compressive force to be exerted between the interconnected boxes to maintain their spatial relationship and to maintain their interconnection. A further feature of the modular boxes of the system are anti-rotation members and receivers that are integrally molded to the side walls of the boxes. The anti-rotation members and receivers interact with one another at the point of connection between the boxes to prevent the boxes from flexing, rotating, or otherwise moving with respect to one another post-installation.

Abstract: A drain grate assembly includes a webbing and a reinforcement structure. The webbing includes webbing sections defining openings. A load rating of the drain grate is based on respective areas of the webbing sections and the openings. The reinforcement structure is secured to an underside of the webbing.

Abstract: A system is provided herein which includes a closet flange insert and at least one spacer to be positioned between the closet flange insert and an installed closet flange. The closet flange insert includes a toilet connecting flange which extends radially outwardly from a through pipe. The through pipe is sized to be inserted into a pipe section of a closet flange. Each spacer includes spaced apart first and second faces, and spaced apart inner and outer edges extending between the first and second faces. The inner edge defines an opening extending through the body, the opening sized to permit passage therethrough of the through pipe of the closet flange insert but not the toilet connecting flange of the closet flange insert. With the subject invention, a system is provided which allows the closet flange insert to be mounted atop an installed closet flange flush with surrounding finished flooring.