WebTo convert gpm/psi½ to Lpm/bar ½ we need to multiply by 14.4 (Approximate) Example: A sprinkler head has a discharge coefficient of 4.2 gpm/psi ½ what is its metric equivalent valve. 4.2 x 14.4 = 60.48 Lpm/bar ½.We only need to use K-factors to one decimal place, so 60.48 becomes 60.5 Lpm/bar ½. Websure in psiis converted to feet of headby the relationship: 1 psi = 2.31 ft. Elevation change: Use the total change in elevation from the pump to the point of discharge, such as the end of the pipeline or sprinkler head. This elevation change may be positive (when the irrigation system is uphill from the pump) or negative (when it is downhill
Flow Rate Calculator Spraying Systems Co.
WebΔP is the pressure drop across the valve (expressed in psi). In more practical terms, the flow coefficient Cv is the volume (in US gallons) of water at 60 °F (16 °C) that will flow … WebConverting Head to Pressure Converting head in feet to pressure in psi Pumps characteristic curves in feet of head can be converted to pressure - psi - by the expression: p = 0.433 h SG (1) where p = pressure (psi) h = head (ft) SG = specific gravity of the fluid Converting head in metre to pressure in bar gsm call settings greyed out
Liquid, Steam and Gas - Flow Coefficients C v - Engineering ToolBox
WebJun 8, 2024 · In general, when pump pressure increases, flow will decrease. Take, for example, a misting pump that needs to produce an ultra-fine mist for cooling or dust … WebPressure At the Inlet of the Valve: +60 psi Min. Design Pressure @ Fixture: - 20 psi 2 Floors above Valve location: 5 psi x 2 - 10 psi 300’ of Horiz. Friction Loss: 300 x 0.02: - 6 psi Total Available Pressure at the Valve: +24 psi Ex: Hunter’s Method Sizing We now need a valve that will flow 50 gpm @ 24 psig WebSlip = (Flow @ 0 psi) – (Flow @ 10 psi) Slip = 100 gpm - 70 gpm Slip = 30 gpm VE = 70% Figure 8 shows the effect that increasing the discharge pressure has on slip and volumetric efficiency. At 0 psi, the volu-metric efficiency is 100%. As the pressure increases, product slips from the discharge side of the pump to the suction side. gsm calling