API-RP-576
API ICP Self Study Notes API ICP Self Study Notes
1 Scope. This recommended practice (RP) describes the inspection and repair practices for automatic pressure-relieving devices commonly used in the oil and petrochemical industries. As a guide to the inspection and repair of these devices in the user’s plant, it is intended to ensure their proper performance. This publication covers such automatic devices as; 1. pressure-relief valves, 2. pilot-operated pressure-relief valves, 3. rupture disks, and 4. weight-loaded pressure vacuum vents. The scope of this RP includes the inspection and repair of automatic pressure-relieving devices commonly used in the oil and petrochemical industry. Fion Zhang/ Charlie Chong
The recommendations in this publication are not intended to supersede requirements established by regulatory bodies. This publication does not cover; • weak seams or sections in tanks, • explosion doors, • fusible plugs, • control valves, and • other devices that either depend on an external source of power for operation or • other devices that are manually operated. Inspections and tests made at manufacturers’ plants, which are usually covered by codes or purchase specifications, are not covered by this publication. Fion Zhang/ Charlie Chong
- Page 1 and 2: API-RP-576 Inspection of Pressure-r
- Page 3 and 4: Fion Zhang/ Charlie Chong Speaker:
- Page 5 and 6: 5 Causes of Improper Performance 5.
- Page 7: 1 Scope Fion Zhang/ Charlie Chong
- Page 11 and 12: This publication does not cover tra
- Page 13 and 14: pressure-relief valves Fion Zhang/
- Page 15 and 16: pilot-operated pressure-relief valv
- Page 17 and 18: upture disks Fion Zhang/ Charlie Ch
- Page 19 and 20: 2 Normative References Fion Zhang/
- Page 21 and 22: • ASME PTC 25, Pressure Relief De
- Page 23 and 24: 3.1 General For the purposes of thi
- Page 25 and 26: galling Fion Zhang/ Charlie Chong
- Page 27 and 28: 3.2 Dimensional Characteristics of
- Page 29 and 30: inlet size outlet size Fion Zhang/
- Page 31 and 32: Fion Zhang/ Charlie Chong huddling
- Page 33 and 34: Fion Zhang/ Charlie Chong lift
- Page 35 and 36: Basic Function of a Spring Loaded S
- Page 37 and 38: Valve Closed. In a direct spring lo
- Page 39 and 40: The pressure below the valve must i
- Page 41 and 42: Fion Zhang/ Charlie Chong F p = p*A
- Page 43 and 44: Functional Diagram. The following d
- Page 45 and 46: 3.3 Operational Characteristics—S
- Page 47 and 48: 3.3.3 maximum allowable working pre
- Page 49 and 50: 3.3.4 maximum operating pressure Th
- Page 51 and 52: Fion Zhang/ Charlie Chong Keywords:
- Page 53 and 54: 3.4.5 burst-pressure tolerance The
- Page 55 and 56: 3.4.10 marked burst pressure or rat
- Page 57 and 58: 4 Pressure-relieving Devices Fion Z
The recommendations in this publication are not intended to supersede requirements<br />
established by regulatory bodies.<br />
This publication does not cover;<br />
• weak seams or sections in tanks,<br />
• explosion doors,<br />
• fusible plugs,<br />
• control valves, and<br />
• other devices that either depend on an external source of power for operation or<br />
• other devices that are manually operated.<br />
Inspections and tests made at manufacturers’ plants, which are usually covered by<br />
codes or purchase specifications, are not covered by this publication.<br />
Fion Zhang/ Charlie Chong
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