The ValvTechnologies HIPPS valve
14 February 2020
The evolution of the High Integrity Pressure Protection System (HIPPS) has radically reduced the need for traditional mechanical relief devices and the level of flaring in oil and gas applications.
ValvTechnologies’ scope of supply would typically include Shutdown valves (SDV) API, PSL level 3 (with optional flame protection), utilizing ValvTechnologies’ zero-leakage ball valves; Actuators (hydraulic or pneumatic); Instrumentation, including pressure transmitters; HIPPS logic solver; Chemical injections system; Choke control and Complete HIPPS skid design and fabrication, if required.
HIPPS solutions utilize the ValvTechnologies’ NexTech® E, trunnion mounted, double block and bleed ball valves that are suitable for both the API and ANSI codes. NexTech® E offers an innovative solution: one-piece top entry body; Bi-directional seat tightness; Controlled seat loading; Lower torque; Resistant to particulates; In-line serviceable; and Double block and bleed.
The development of the HIPPS package is governed by IEC 61508/61511 which defines specific guidelines to configure the SIS to provide the necessary risk reduction and meet the required Safety Integrity Level (SIL).
The Logic Solver uses standard, proven function block software and available options which include partial stroke testing, valve function logging (to support preventative maintenance regimes), communications to all major DCS systems and customized third party communication interfaces. The SIS controller can be provided from a range of IEC 61508 SIL 3 certified platforms, to include scalable 2oo3, 1oo2D, and simplex architectures, with SIS choice dictated by functionality and availability requirements, system cost and customer preference.
Image credit: ValvTechnologies