Forward Acting

STD (Standard)
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  1. STD Specifications (pdf - 74.9Kb)
  2. STD Min-Max Table (pdf - 74Kb)
  3. STD Installation Guide (pdf - 167.2Kb)
  4. Flat Seat STD Installation Guide (pdf - 170.1Kb)
  5. Angular STD Installation Guide (pdf - 121.1Kb)
  6. Angular Seat STD Vacuum Support Requirements (pdf - 51.7Kb)
  7. CE Marked STD Instructions (pdf - 39.2Kb)
  8. STD Additional Info (pdf - 95.6Kb)

Oseco's STD rupture disc is a pressure-relieving safety device that is used in many applications.  It has a 30º angular seating area and is used primarily to vent to controlled areas or to the atmosphere.

The STD is designed for operation in applications where normal system pressures do not exceed 70% of the stamped burst pressure.  This will insure long and excellent service life.

The STD is a solid metal crowned or pre-bulged disc and is designed for a wide variety of applications.

The STD excels in gas or liquid applications and a variety of temperature and pressure extremes.

The STD comes in a wide variety of materials and sizes.  Liners are made primarily of PFA fluoropolymer; consult the Oseco factory for specifics regarding your particular application.

  • Standard sizes: ½"-24": consult Oseco for other available sizes.
  • Standard materials: 316 Stainless Steel, Nickel-200/201, Iconel®-600, Monel®-400 and Aluminum
  • Pressure ranges from 2 psig to 30,000 psig; special applications may require reduced pressure ranges. Please consult the Oseco factory.
  • Vacuum service: If the STD is subjected to vacuum conditions, it may be necessary to use a vacuum support with the STD disc. The STDV (STD with vacuum support) is designed to withstand a minimum 15 psig of differential back-pressures on request. If the burst pressure is high enough, vacuum supports are not required.