CTS and CPVC Tubes - Volume Flow and Friction Loss

Volume flow and pressure loss in CTS (Copper Tube Size) and CPVC (Chlorinated Poly Vinyl Chloride) tubes

Chlorinated Poly Vinyl Chloride (CPVC) is a thermoplastic pipe and fitting material made with CPVC compounds meeting the requirements of ASTM Class 23447 as defined in ASTM Specification D1784. CPVC applications are for potable water distribution, corrosive fluid handling in industry, and fire suppression systems.

Friction loss CTS (Copper Tube Size) and CPVC (Chlorinated Poly Vinyl Chloride) tubes:

Head Loss (ft H2O/100 ft) 

cts cpvc pipe friction loss flow velocity

  • 1 ft H2O = 0.4335 psi = 62.43 Lbs./Sq.Ft.
  • 1 gal (US)/min =6.30888x10-5 m3/s = 0.227 m3/h = 0.06309 dm3(litre)/s = 2.228x10-3 ft3/s = 0.1337 ft3/min = 0.8327 Imperial gal (UK)/min
  • 1 ft/s = 0.3048 m/s

Friction Loss (kPa/m)

cts cpvc pipe tube SI Pa

  • 1 Pa = 10-6 N/mm2 = 10-5 bar = 0.1020 kp/m2 = 1.02x10-4 m H2O = 9.869x10-6 atm = 1.45x10-4 psi (lbf/in2)
  • 1 dm3(litre)/s = 10-3 m3/s = 3.6 m3/h = 0.03532 ft3/s = 2.1189 ft3/min (cfm) = 13.200 Imp.gal (UK)/min = 15.852 gal (US)/min = 792 Imp. gal (UK)/h
  • 1 m/s = 3.6 km/h = 196.85 ft/min = 2.237 mph

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