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Body: molded nylon <br />Stem: brass <br />Disc holder: aluminum <br />Seal: Buna-N 0-Ring <br />Screen: brass, 20-mesh (15S only) <br />Spring: stainless steel <br />Materials <br />Features <br />ONE CONIRANY: ONE WORLD. ONE SOURCE. OPW UNION CHECK VALVES/BUSHINGS <br />OPW 15 And 155 Union <br />Check Valves <br />OPW Union Check Valves provide a <br />method for temporarily stopping the loss <br />of prime caused by a damaged foot valve, <br />angle check valve or vertical check valve. <br />They are easily inserted into an existing <br />union and can be used until the damaged <br />valve is repaired or replaced. <br />OPW 15 OPW 155 <br />Distortion-Proof Design - The stem <br />guide has sufficient clearance to allow <br />the poppet its own alignment. <br />Lower Pressure Drop - lower than any <br />other union check valves. <br />OPW 15 <br />Ordering Specifications <br />Union Size The OPW 15 is a nylon, single-poppet <br />Model # in. mm lbs. kg union check valve. <br />VA .13 .06 OPW 155 15-0033 <br />No Gasket Required - Resilient nylon <br />fins form a leak-proof seal despite any <br />irregularities in the face of the union. <br />15S-1233 VA .17 .08 <br />Replacement Parts <br />Part # in. mm Description <br />H2107RA 1le 38 Disc Holder <br />H1187M 1;4" 38 0-Ring <br />The OPW 15S is similar to the <br />OPW 15, except that it is provided with <br />a screen to keep scale and other <br />foreign matter from the valve seat. <br />Materials <br />Bushing: iron <br />Ordering Specifications <br />kg <br />.9 .4 OPW 53 <br />1.9 .9 <br />2.5 1.1 <br />2.5 1.1 <br />3.4 1.5 <br />53-0012 <br />Model # Threads lbs. <br />(MNPT x FNPT) <br />2" x VA" <br />(51 x 38 mm) <br />53-0020 3" x 2" <br />(76 x 51mm) <br />53-0034 4" x VA" <br />(102 x 38 mm) <br />53-0036 4" x 2" <br />(102 x 51mm) <br />4" x3" 53-0038 (102 x 76 mm) <br />OPW 53 Bushings <br />OPW 53 Bushings are general-purpose <br />bushings for use on tank vent lines, fill <br />lines, suction lines or other lines where it is <br />necessary or desirable to bush up or <br />bush down. <br />Important OPW products should be used in compliance with applicable federal, state, provincial, and local laws and regulations. Product selection should be based on <br />physical specifications and limitations, and compatibility with the environment and materials to be handled. OPW MAKES NO WARRANTY OF FITNESS FOR A <br />PARTICULAR USE. All illustrations and specifications in this literature are based on the latest product information available at the time of publication. OPW <br />reserves the right to make changes at any time in prices, materials, specifications and models and to discontinue models without notice or obligation. <br />PAGE 89