By American Water Works Association
Fiberglass pipe has had large popularity in potable water offer, as a result of its corrosion resistance, first-class energy to weight ratio, dimensional balance, and coffee upkeep. This handbook presents water offer engineers and operators a convenient unmarried resource for all of the info they wish approximately fiberglass pipe and fittings. It covers layout, specification, buy, deploy and upkeep, transport, handing, garage, becoming a member of, and hydraulics.
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Extra info for Fiberglass Pipe Design - Manual of Water Supply Practices, M45
Check deflection prediction, A y l D (Sec. 3). 8. Check combined loading (Sec. 4). 9. Check buckling (Sec. 5). See Sec. 10 for step-by-step example design calculations. 1 Pressure class, P,. lin. 8 t = pipe reinforced wall thickness, in. D = mean pipe diameter, in. 8 t = pipe reinforced wall thickness, mm D = mean pipe diameter, mm D = ID + 2 t +~ t; or D = ID + 2 t +~ t ; or D=OD-t D=OD-t Where: t L = liner thickness, in. ID = inside diameter, in. OD = outside diameter, in. E H = hoop tensile modulus of elasticity for pipe, psi Where: t L = liner thickness, mm ID = inside diameter, mm OD = outside diameter, mm EH = hoop tensile modulus of elasticity for pipe, GPa Hydrostatic design basis (HDB).
Compute the frictional pressure loss in a Compute the frictional pressure loss in a 450-m long, 250-mm diameter fiberglass 1,500-R long, 10-in. diameter fiberglass pipe transporting 130 Wsec of water. pipe transporting 2,000 gpm of water. (C = 150 as typical) (C = 150 as typical) Step 1. 78 m of water Step 2. 102 = 86 kPa Example 4-2: Determine the pipe diameter, working pressure, and pressure class on a pipeline. 5 m. Assume kinematic vischange of 25 R. 00001. 93 x lo4. The flow rate is 8,000 gpm.
SPr = (mm) when tested by ASTM D2412 with a vertical diameter reduction of 5% maximum ring-bending stress due to deflection, psi (MPa) maximum stress due to combined loading, psi (MPa) working stress due t o internal pressure, psi (MPa) maximum permitted long-term installed deflection, in. /in. /in. /in. 3 DESIGN CONDITIONS Design conditions are largely determined by required flow rate and flow velocity limitations, hydraulics, pipeline elevations and associated geology and topography, available rights-of-way, and installation requirements.
Fiberglass Pipe Design - Manual of Water Supply Practices, M45 by American Water Works Association