Relief Valve Sizing

- Paratherm Heat Transfer Fluids -

- Paratherm Heat Transfer Fluids -

Critical Temperature, Tc(Calculated)	Units	HR™	NF©	HE©	OR©	MR™	LR™	CR™
	ºR	1465	1453	1580	1524	1358	1174	1168
	ºF	1005	993	1120	1064	899	714	709
	K	814	807	878	847	755	652	649

Critical Pressure, Pc(Calculated)	Units	HR™	NF©	HE©	OR©	MR™	LR™	CR™
	ATM	18.7	11.1	26.5	13.3	12.9	10.7	28.6
	PSIA	274	163	389	196	190	157	421

Critical Volume, Vc(Calculated)	Units	HR™	NF©	HE©	OR©	MR™	LR™	CR™
	cm3/g-mole	816	1579	720	1380	987	1327	493
	ft3/lb	0.037	0.072	0.033	0.063	0.045	0.06	0.023

Heat of Vaporization,DH vap	Units	HR™	NF©	HE©	OR©	MR™	LR™	CR™
Heat of Vaporization,DH vap	BTU/lb	110	91	77	93	115	113	148

Molecular Weight avg	Units	HR™	NF©	HE©	OR©	MR™	LR™	CR™
Molecular Weight avg	MW	239	350	445	360	230	160	133

Constants	k=Cp/Cv =	1.01
	C’ =	316.5
	R =	82.06 cm3atm/molK
	Z =	0.27
	Fb =	1.0

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News

July 24, 2012

New Paratherm Website Makes Heat Transfer Fluid Information Transparent and Available

Paratherm Corporation’s new website at Paratherm.com provides deep and detailed information on heat transfer fluids, and their safety, operation, and system maintenance, without requiring registration.

February 15, 2012

Paracalc Updated: Instant Online Heat Transfer Fluid Characteristics

Heat transfer fluid properties vs. temperature on the web. In an online form, choose among available Paratherm Heat Transfer fluids, pick Fahrenheit or Centigrade and a degree increment, and the Paracalc™ software will instantly generate a spreadsheet