HIPPS - High IntegrityPressure Protection System
What is HIPPS
High Integrity Pressure Protection Systems (HIPPS) is designed to reduce the risk if the pressure of a system exceeds its design pressure. With today’s requirements for higher flow rates and pressures, the ability to lock-in pressure using a performance-based, non-descriptive framework and life-cycle data is required. These systems include emergency shutdown valves, pressure sensors, fail safe actuation, partial-stroke testing and a logic solver—all with built-in redundancy in a skid-mounted package.
Advantages of HIPPS
Typical HIPPS Package
Typical HIPPS Package
- HIPPS provides a technically sound and economically attractive solutions to protect equipment in cases where high pressures and/or flow rates are processed
- The environment is to be protected
- The economic viability of a development needs improvement
- ¨ The risk profile of the plant must be reduced
Typical HIPPS Package
Typical HIPPS Package
Typical HIPPS Package
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- A HIPPS is a complete functional loop consisting of:
- The initiators that detect the high pressure. These initiators may be electronic or mechanical.
- For electronic HIPPS, a logic solver, which processes the input from the initiators to an output to the final element.
- The final elements, that actually perform the corrective action in the field by bringing the process to a safe state. The final element consists of a valve and actuator and possibly solenoids or mechanical initiators
MFC HIPPS
MFC HIPPS is applied to prevent over-pressurization of a plant or pipeline by shutting off the source of the high pressure. The MFC HIPPS totals over 35 000 (with over 2500 valves) operational years and are therefore proven-in-use for high reliability safety applications.
MFC HIPPS is a type of SIS designed to prevent over-pressurization of a plant, such as a chemical plant or oil refinery. MFC HIPPS will shut off the source of the high pressure before the design pressure of the system is exceeded, thus preventing loss of containment through rupture (explosion) of a line or vessel. MFC HIPPS is considered as a barrier between a high-pressure and a low-pressure section of an installation.
Typical Components of MFC HIPPS
MFC HIPPS Benefit
- High reliability
- 3rd parties have validated the failure data of the final element (valve and actuator) on applications with less than 2 seconds stroking time.
- Fast acting
- Fast acting axial on-off valve with integrated actuator, specifically designed for fast reliable stroking.
- High capacity
- The capacity of the axial on-off valve is extremely high, as a result of which the pressure drop is negligible.
- Accuracy better than 1%
- MFC mechanical initiators have an accuracy better than 1 percent of the set point. Failure data have been validated by third parties.
- No partial stroke testing required
- ¨The MFC HIPPS final elements do not require additional electronic systems, like partial stroke testing devices, to meet SIL 3 with a 1 year test interval.
