Crosby LAB70AA191(*) 1.5G2.5 HSJ-66-C 1 1/2" 1500RF x 2 1/2" 300RF Conventional Direct Spring Op

Category: : Valvulas
Manufacturer: Emerson Process
Code: : Crosby LAB70AA191(*) 1.5G2.5 HSJ-66-C 1 1/2" 1500RF x 2 1/2" 300
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Crosby LAB70AA191(*) 1.5G2.5 HSJ-66-C 1 1/2" 1500RF x 2 1/2" 300RF Conventional Direct Spring Op

 

luid Properties Molecular Weight M 18,020 18,020
Ratio of Specific Heats k 1,310 1,310
Inlet Stagnation Enthalpy ho 2667,0 KJ/kg 2667,0 KJ/kg
Process Cond. Required Mass Flow Wreq
Set Pressure Pset 1790,6 psig 123,458 barg
Over Pressure Pover 53,718 psig 3,704 barg
Inlet Line Loss Ploss 0 psig 0 barg
Back Pressure Pback 0 psig 0 barg
Atmospheric Pressure Patm 14,696 psia 1,013 bara
Relieving Temperature T 329,736 °C 602,886 °K
Distance from Valve (noise) r 1 m 1 m
Rupture Disc CCF Kc 1,0 1,0
Superheat Correction Factor Ksh 1,0 1,0
Supercritical Correction Factor Ksc 1.0 1.0
Valve Data Discharge Coefficient (actual) Kd 0,975 0,975
Discharge Coefficient (derated) K 0,878 0,878
Orifice Area A 0,503 in² 3,245 cm²
Back Press. Correction Factor Kb 1,0 1,0
Outlet Diameter Do 63,22 mm 6,32 cm
Calculate Inlet Relieving Pressure, Outlet Pressure, Absolute Pressure Ratio
P1 = Pset + Pover - Ploss + Patm P1 128,175 bara
P2 = Pback + Patm P2 1,013 bara
PR = P2 / P1 PR 0,008
Calculate Napier Correction Factor Kn 1,017
If (103.4 bara ≤ P1 ≤ 220.6 bara) and (Kn > 1), then Kn = (2.7644 * P1 - 1000) / (3.324 * P1 - 1061), else Kn = 1.0

Calculate Capacity of Selected Valve W 19486,799 kg/hr 19486,799 kg/hr
W = 52.5 * A * P1 * K * Kb * Kc * Kn * Ksh * Ksc
Calculate Required Orifice Area Areq
Areq = A * Wreq / W

Printed On: 8-jun.-2021 PRV²SIZE Software Version pr7_20200901.1 Page : 2

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