PLTB Liquid Services - Pipeline Facilities

Introduction – Pipeline Facilities

The Pipeline Toolbox is home to many tools and calculators. The PLTB User’s Guide presents information, guidelines and procedures for use during design, construction, operations and integrity tasks for field or office applications.

In today’s competitive and changing environment, it is crucial that pipelines and associated facilities create and sustain value for their stakeholders. This value can only be achieved by incorporating dependability into the pipeline system, in whole or in part. Dependability characteristics address not just availability and reliability as the probability of successful performance, but also identify other potential risk exposures such as degradation and wear out that advocate the need for maintenance and logistic support to sustain “problem free” pipeline and facility operation. The following module contains a few calculations that can address some areas and tasks conducted on facilities to ensure greater levels of safety and operation.

Module/Application

API 520 – Relief Valves Requiring Capacity Certification
API 520 – Relief Valves Requiring No Capacity Certification
Relief Valve: Reactive Force
Reinforcement of Welded Branch Connection

References

ASME – Boiler and Pressure Vessel Code, Section VIII
API – RP 520 Part 2
ASME B31.8 Gas Transmission and Distribution Piping Systems
ASME B31.3, B31.4 and B31.8 – Full Encirclement Sleeves (See Appendices)

Appendix

Even though Technical Toolboxes does not provide software for a full-encirclement reinforcing saddles, many operators use them to provide reinforcement for branch outlets in accordance with ASME B31.3, B31.4, B31.8 and other applicable design codes. Full-encirclement reinforcing saddles are designed to fully encircle the run pipe however; they are not designed to be pressure retaining devices. To avoid gas entrapment during welding and to prevent pressure containment, should a leak develop underneath the saddles; these saddles should be provided with a vent to allow escaping product.

A typical field applied Full Encirclement Reinforcement Weldment Saddle is shown below:

Related Links

Pipeline Toolbox: User Guides
Pipeline HUB — User Resources