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Valve ( .... ) <br /> TOTAL FEET x .= <br /> Two Size <br /> 90 degree elbow <br /> 45 degree elbow <br /> Tee <br /> Check Valve <br /> Valve ( .... ) <br /> TOTAL FEET x .= <br /> <br />Remaining pressure must be at least 20 psi. *See note next page. <br /> <br /> TABLEI <br /> <br /> PRESSURE LOSS IN WATER METERS <br /> <br /> PRESSURE LOSS Flow in <br /> IN (PSI) (GPM) <br /> METER (INCHES) 18 23 26 31 39 52 <br /> 1 2 3 3 4 6 10 <br /> 11/2 ** 1 2 2 4 7 <br /> 2 ** ** ** 1 2 3 <br /> <br /> *Above the maximum rated flow of commonly available meters <br /> **Less than 1 psi <br /> <br /> TABLEII <br /> <br /> FITTING LENGTH TABLES <br /> <br /> NFPA 13D FITTING LENGTH TABLE FOR STEEL C=120 <br /> <br /> FITTING/ SIZE <br /> VALVE ' " <br /> 90 degree elbow <br /> 45 degree elbow <br /> Tee - branch <br /> Tee - run <br /> Gate valve <br /> Angle valve <br /> Globe valve <br /> <br /> 29 <br /> <br /> <br />