MRO Gaskets - VR 70 Maxium Operating Pressures

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VR 70 Maxium Operating Pressures

Max. operating pressure ¹⁾ (psi) at medium
Temperature (°F)	Thickness(inch)	Water, steam, aqueous solutions	Gases	Acids³⁾, alkaline solutions³⁾, amines, acid derivatives	Oils, greases	Fuels, solvents
–148²⁾	0.0394	-	232	-	580	363
	0.0787	-	145	-	363	232
	0.1181	-	87	-	145	145
–58	0.0394	435	580	232	928	580
	0.0787	290	363	145	580	363
	0.1181	145	232	87	363	232
32	0.0394	1305	928	580	1450	928
	0.0787	725	580	363	928	580
	0.1181	363	363	232	580	363
122	0.0394	1305	928	580	1450	928
	0.0787	725	580	363	928	580
	0.1181	363	363	232	580	363
212	0.0394	725	580	363	928	580
	0.0787	363	363	232	580	363
	0.1181	232	232	145	363	232
302	0.0394	145	363	232	580	363
	0.0787	87	232	145	363	232
	0.1181	29	145	87	232	145
392	0.0394	-	232	-	363	145
	0.0787	-	145	-	232	87
	0.1181	-	87	-	145	29
482	0.0394	-	-	-	145	-
	0.0787	-	-	-	87	-
	0.1181	-	-	-	29	-

		The data quoted above are valid for the material "as delivered" without any additional treatment and with sufficient surface pressure, e.g. according to DIN 28 090ff. In view of the multiplicity of possible gasket designs as well as installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behavious in a sealing joint. For this reason, we do not give any warranty for technical data. They do not represent warranted properties. If you have any doubt, please contact us and specify exact operating conditions.
¹⁾		Very much higher pressure values are possibly permitted for flanges with projections and recesses or grooves and tongues. Please consult us in individual cases, specifying exact sealing conditions.
²⁾		Use at temperatures below –58 °F (-50 °C) is possible when surface pressure does not drop below approx. 2180 psi (15 N/mm²) in liquids or 4350 psi (30 N/mm²) in gases (internal pressure must be considered). In addition, the gasket must not show bending stress or reversed bending stress. At temperatures below -148 °F (–100 °C), operating pressures may not be greater than the max. values given for -148 °F (–100 °C).
³⁾		Observe the Chemical Resistance in the media table "About the chemical resistance of VR 70" At temperatures > 122 °F (> 50 °C), tests under conditions of use must be conducted in the case of strong acids or alkaline solutions, such as hydrochloric acid or potassium hydroxide solution. This material is not resistant to nitric acid > 20 %. In this case, we recommend the use of gaskets made of REINZOFLON^®100 (filled PTFE); please contact Target Marketing, Inc. .

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