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An overview on

HIPPS


HIPPS (High Integrity Pressure Protection System) is an independent SIS (Safety Instrumented System) designed to protect downstream lines and plant portions from overpressure events. It is normally used to partially or completely replace the flare and relief system as a result of increased environmental awareness.

HIPPS is the ultimate and independent safety layer of a plant, for the prevention of dramatic events. The HIPPS system consists of at least three elements: initiators, logic solvers and final elements. The main standards applicable to HIPPS are IEC 61508 and IEC 61511.

1

HIPPS

Standard configuration with all components supplied loose.

2

SKID HIPPS

Configuration with all components assembled on a skid.

3

WELLHEAD HIPPS

Configuration includes choke valves, installed on a skid.

4

OTHER SYSTEMS

Other configurations available. Ask us for information.

using hipps

Why?


INCREASED SAFETY

Implementing HIPPS in a plant is a commitment to protecting the environment, your assets and your people.

Protect the environment

Traditional flare and relief systems are responsible for environmental pollution. HIPPS increases safety, therefore sustainability of Oil & Gas sites.

Economic benefits

HIPPS is a significant Capex and Opex saving. Main drivers are: weight and cost reduction for piping and vessels downstream and optimization of available space.

Enhance performance

HIPPS allows full utilization of plant potential, bringing technical performance to the edge, especially using electronic HIPPS.

Where to use HIPPS


Hipps can be installed in any part of the plant where a pipe spec break or protection is needed. For instance:

Upstream

Wellhead control

Flare systems

LNG compression facilities

Gas Injection Compressor Facilities

Midstream

Oil Pipelines pumping stations

Gas Pipelines compression stations

Floating LNG

Pressure letdown stations

Gas gathering and storage

Downstream

Propane circuits

Refrigeration circuits

Distillation columns

Amine reboilers

Refineries

When to use HIPPS


HIPPS provides an advanced solution to protect equipment when:

pressure

extremely high pressure and flow rates are involved

plant

overall plant risk profile needs to be reduced

env

environmental and safety awareness are paramount

eco

economic viability needs improvement

Architecture


HIPPS System Architecture is based on customer requirements in terms of performance and SIL (Safety Integrity Level), which are part of SRS (Safety Requirement Specifications). IEC 61508 and IEC 61511 international standards are intended to address the application in the process industries covering all aspects of design (risk assessment, conceptual design, detailed design, operation, maintenance and testing).

hipps

INITIATOR

The sensing elements are used to measure the line pressure. Several voting architectures can be applied. The most used voting logics are 2oo3 or 2oo4. On some occasions an interlocking manifold can be used to avoid spurious trips due to misoperation.

LOGIC SOLVER CABINET

It is typically an electronic hardware that continuously compares the process value coming from the initiators and performs logic and diagnostics to operate the final elements when a demand occurs. The logic solver can be programmable or solid state depending on the maximum SIL target.

FINAL ELEMENTS

Actuated ON-OFF valves that isolate a portion of the plant/ pipeline from over pressure propagation. ATV HIPPS is able to provide the most suitable valve selection based on customer specifications and plant safety requirements.

HIPPS valves


ATV HIPPS will select the most suitable valve to fulfill HIPPS service. ATV has a wide variety of final element solutions (Ball, Gate, Axial). ATV HIPPS is a vendor independent integrator that can choose any brand specified by customers.

BALL VALVES

Side and Top Entry, Metal and Soft seated, API 6D Class 150 through 2500, API 6A Class up to 15 K, sizes from 2″ to 48″.

GATE VALVES

Through Conduit Slab and Double Expanding, API 6D Class 150 through 2500, API 6A Class up to 15 K, sizes from 1″ to 48″.

AXIAL VALVES

Axial Flow Valves, ASME Class 150 through 2500, API Class 3K to 10K, sizes 2″ to 48″.