This standard is a purchase specification for flanged steel pressure relief valves. Basic requirements are given for direct spring-loaded pressure relief valves and pilot-operated pressure relief valves as follows: orifice designation and area; valve size and pressure rating, inlet and outlet; materials; pressure-temperature limits; and center-to-face dimensions, inlet and outlet.
API Std 526:2002 History
API Std 526:2017
$117.00 $234.00
API Std 526:2009
$87.00 $175.00
API Std 526:2002
$72.00 $144.00
API 526:1995
$66.00 $133.00
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