Construction Guidance - FEMA.gov
Pipe Sizes For Water Distribution System Design D-5 Table D-3. Allowance for Equivalent Length of Pipe for Friction Loss (Valve and Threaded Fittings) Diameter of Fitting (in Inches) 90 Standard Elbow, Foot 45 Standard Elbow, Foot 90 Side T, Foot Coupling of Straight Run of T, Foot Gate Valve, Foot Globe Valve, Foot Angle Valve, Foot 3/8 1.0 0 ...