API 589 : 1998
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
FIRE TEST FOR EVALUATION OF VALVE STEM PACKING
07-15-1998
07-01-1998
1. Scope
2. References
3. Fixture for fire test
4. Fire-test conditions
5. Test layout
6. Test procedure
6.1 Pretest operations
6.2 Stepwise procedure for fire test
6.3 Low-pressure hydrostatic test
6.4 Operational test
7 Performance requirements
7.1 Packing leakage
7.2 Packing qualification
7.3 Certification and witnessing of tests
Appendix A Test result summary
Figures
1 Typical fire-test system using compressed gas as the
pressure source
2 Typical fire-test system using a pump as the pressure source
3 Location of thermocouples for flame temperature measurement
4 Location of thermocouples in stuffing box wall
Tables
1 Maximum Allowable Packing Leak Rates
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