Relief Valve Sizing

Paratherm Heat Transfer Fluids

UnitsHR™NF©HE©OR©MR™LR™CR™
Critical Temperature,
Tc(Calculated)
146514531580152413581174 1168
100599311201064899714709
K814807878847755652649
Critical Pressure,
Pc(Calculated)
ATM18.711.126.513.312.910.728.6
PSIA274163389196190157421
Critical Volume,
Vc(Calculated)
cm3/g-mole8161579 72013809871327493
ft3/lb0.0370.0720.0330.0630.0450.060.023
Heat of Vaporization,
DH vap
BTU/lb110917793115113148
Molecular Weight avgMW239350445360230160133
Constants: k=Cp/Cv = 1.01 | C’ = 316.5 | R = 82.06 cm3*atm/mol*K | Fb = 1.0