Safety valves according to API standard type 526 - Leser.ru

Accessories and OptionsInconel X-750 SpringLESER offers the spring material INCONEL X-750 / 2.4669as an Option of Type 526 for all valve sizes and the completepressure range.ApplicationsINCONEL X-750 is recommended in the following applications:– Sour gas applications acc. to NACE MR 0175 andNACE MR 0103:if NACE conditions are present at the outlet of the safety valve(NACE Level 2). INCONEL X-750 is a spring material which isrecommended in the NACE standards.– High temperature applications:INCONEL X-750 allows higher operating temperatures thanother standard spring materials. With a spring in INCONELX-750 it is possible to use a conventional safety valve withclosed bonnet for medium temperatures of 538 °C/1000 °Fwithout the need of a bellows for spring heat protection.– Highly corrosive applications:applications that require a spring material with a corrosionresistance superior to that of stainless steel, e.g. seawaterapplications.Option CodeOption code X08: Spring material INCONEL X-750OrderingThe option code for ordering is X08. Spring part numbersand pressure limits can be taken from the actual spring chartsLGS 3630.O-ring damperThe O-ring damper can be employed to suppress or reduceoscillations of moving parts in a safety valve.LESER has ensured proper performance of the O-ring damperthrough extensive tests at its certified test labs.For applications according to CE/VdTUEV O-ring damper areavailable on request. If an O-ring damper is required furthertesting must be performed, which will require a longer leadtime; please contact sales@leser.com.Safety valves with O-ring damper are not designated in theASME code.Cap H2Packed lever H4Options99/16