Practices by Discipline
PIP produces broadly applicable code-compliant practices.
Browse PIP Practices
Review the most up-to-date collection of PIP Practices. Most recently published practices are listed first. Search key terms or filter by discipline to narrow the list.

Liquid Immersed Power Transformers (IEC)
​This Practice describes the requirements for design, manufacture, inspection, testing, and shipping of three-phase and single-phase liquid-immersed power transformers in accordance with applicable International Electrotechnical Commission (IEC) standards.
New Practice

Design and Fabrication of Metal-Enclosed Nonsegregated-Phase Bus-Duct Assemblies
​This Practice describes requirements for design, fabrication, inspection, and testing of metal-enclosed, self-cooled, nonsegregated-phase bus duct assemblies for use on systems operating at 34.5 kV and below, and suitable for indoor and outdoor applications.
Complete Revision

Design and Fabrication of Medium-Voltage Gas-Insulated Switchgear up to 52kV
​This Practice covers the minimum requirements for design, fabrication, inspection, testing, shipment, and documentation for gas insulated switchgear containing gas-insulated buses, power circuit breakers, control, instrumentation, and metering for installation in unclassified areas. This Practice also covers remote monitoring and control requirements.
New Practice

Design and Fabrication of Medium-Voltage Gas Insulated Switchgear up to 52kV (IEC)
​This Practice covers the minimum requirements for design, fabrication, inspection, testing, shipment, and documentation for gas insulated switchgear containing gas-insulated buses, power circuit breakers, control, instrumentation, and metering for installation in unclassified areas. This Practice also covers remote monitoring and control requirements.
New Practice

Dry Type Power Transformers
​This Practice contains the minimum requirements for design, manufacture, inspection, testing, and shipping of air cooled dry type power transformers with ratings up to and including 30,000 kVA with voltage ratings 34.5kV and below.
Technical Correction

Liquid Containment Pits Design Guide
​This Practice provides design considerations to engineers designing liquid containment pits, holding ponds, and basins. It includes civil, geotechnical, and hydrological engineering aspects, specifically addressing pits lined with geomembranes.
New Practice

Design Criteria and Purchasing Requirements for Vessels ASME Code Section VIII, Divisions 1 and 2
This Practice provides requirements for use by a Purchaser for determining the design criteria for pressure vessels constructed in accordance with ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 or Division 2, henceforth referred to as the Code. Requirements that are specific to Code, Section VIII, Division 2 are shown in braces .This Practice describes the requirements for the design, materials of construction, inspection and testing of pressure vessels constructed in accordance with Code, Section VIII, Division 1 or 2. Guidance is also provided for the development of purchase specifications for the construction of new pressure vessels which meet the philosophy and requirements of Code, Section VIII, Division 1 or 2.This Practice also applies to bulk solids product containers, electric immersion process heaters, shell and plate exchangers, shell and tube exchangers, and air-cooled exchangers. See PIP VECBI001 and PIP VESBI002 for the additional requirements specific to bulk solids product containers only. See PIP VESEH001 for the additional requirements specific to electric immersion process heaters. See PIP VECSP001 and PIP VESSP002 for the additional requirements specific to shell and plate exchangers only. See PIP VECST001 and PIP VESST002 for the additional requirements specific to shell and tube exchangers only. See PIP VESAC001 for the additional requirements specific to air-cooled exchangers only.This Practice is intended to be used for the purchase of vessels where the Manufacturer is also responsible for performing detailed design for the vessels in accordance with the Code and PIPVESV1002. If Purchaser also performs a detailed design, the design shall also be in accordance with PIP VESV1002.The following are not covered by this Practicea. Standardized pre-designed (i.e., off-the-shelf) vessels (see PIP VESSM001)b. Vessels with layered constructionc. Small vessels and low-pressure vessels (see PIP VESSM001 and PIP VESLP001)d. Process design of trays and other removable internals
Technical Correction

Instrumentation Electrical Design Criteria
This Practice provides requirements for electrical design for instrumentation.This Practice describes the requirements for equipment selection, system design, and installation of electrical supply and wiring to support instrumentation for process measurement and control systems. Both US and international standards are referenced in this document. The user should select the appropriate standards according to the geographical location and regulatory agencies.
Technical Revision

Instrument Piping and Tubing Systems Criteria
​This Practice describes the general requirements for the design and installation of instrument air and process piping and tubing. Analyzers and analyzer sample systems are not covered by this Practice.
Technical Revision

Guidelines for Control Systems Documentation
​This Practice provides control systems design personnel with guidelines for providing control systems documentation. This Practice describes the general guidelines for control systems documentation for design, supply, installation, checkout or commissioning, and maintenance of instrumentation and control systems.
Technical Revision

Abbreviated Pipeline Terms and Acronyms (Universally Applicable)
This Practice provides a system for engineers to identify abbreviated pipeline terms and acronyms used in PIP Pipeline Systems Practices. This Practice establishes the definitions and interpretations for all pipeline-related abbreviations and acronyms used in Pipeline Systems Practices. Abbreviations for technical societies, codes, standards, etc. are not included.
Technical Revision

Differential Pressure Transmitter Installation Details
​This Practice contains differential pressure installation details, including liquid, gas, and steam services and includes details for electric or steam tracing of these transmitters. These details describe the base instrument installations. The bill of material provided with each detail is generic and is complementary to PIP PCSIP001 - Instrument Piping and Tubing Systems Specifications.
Technical Revision
Update type not available