HIPPS
Advanced solutions have been developed for several applications, among which HIPPS. A High Integrity Pressure Protection System (HIPPS) is a Safety Instrumented System (SIS) designed to prevent an unsafe condition caused by pressure arising (e.g. due to separator outlet blocked in the choke valve downstream, blocked pipeline, etc).
A High Integrity Pressure Protection System is used as alternative pressure protection, as a full or partial replacement for adequately sized mechanical pressure relief devices (PSVs and/or rupture disks).
VALVES SPECIFICATION
Valve Design: Ball side entry / top entry, Slab gate
Pressure rating: API 6D: ANSI 150 to 2500 API 6A: API 2,000 to 20,000 psi
Temperature: -60°C to + 200°C
Bore sizes: API 6D: 2” to 60” API 6A: 1.13/16” to 9”
Material options: Carbon and low alloy steels, stainless steels, duplex and super duplex steels, CRAs
Actuation: Hydraulic and pneumatic (spring return)
Quality Certifications and Approvals: API 6A, API 6D, API 17D, API 6DSS, ISO 10423, ISO 13628, ISO 14313, ISO 14723, Fire safe API 6FA, PED 97/23/EC H Module, ATEX, SIL 3, IEC 61 508, IEC 61 511
APPLICATIONS:
- Onshore Gas Pipelines
- Offshore and Onshore Gas Well Pipelines
- Offshore Subsea Applications
MAIN COMPONENTS:
- Initiators (sensors): detect the high pressure
- Logic Solver: processes the input from the initiators and transmits an output to the final elements.
- Final Elements: formed by two valves assembled in series, that provide the fast shut-down of the line.
MAIN ADVANTAGES:
- Negotiating the need for flare systems to be sized for the case of a well failing to close
- Production piping downrating, giving potential cost benefits
- Fast inventory isolation within two seconds
- Huge capital cost savings
- No capital cost for relief system
(PSV, flare, etc.)
- Compliance with environmental constraints against discharges