When following SP-69, you must evaluate several factors to select the correct "Type" (numbered components like Type 1, Type 21, etc.): Taylor Walraven Pipe Hangers and Supports – Selection and Application
If you cannot afford to purchase the standard, many contain the exact same data derived from MSS standards. You can often download these for free.
A: MSS SP‑69 covers selection and application (which type of support to use and where). MSS SP‑89 covers fabrication and installation (how to assemble and attach the supports correctly). mss sp 69 pdf
It covers all service temperatures, ensuring reliability from cryogenic to high-temperature systems.
The primary objective of the MSS SP-69 standard practice is to standardize industry approaches to piping support design. It protects both field personnel and facility equipment by eliminating guesswork in system hardware selection. When following SP-69, you must evaluate several factors
Designed to restrict movement to specific axes, protecting sensitive equipment nozzles. 3. Maximum Hanger and Support Spacing
For a comprehensive approach, always refer to for material standards and MSS SP-89 for installation best practices. MSS SP‑89 covers fabrication and installation (how to
: Follow best practices for socket welding, including proper cleaning of the stub end and pipe, correct alignment, and adequate weld penetration. Ensure welders are qualified and that welding procedures are in accordance with relevant codes (e.g., ASME B31.1 or B31.3).
So, before your next outage or greenfield project, download the official , bookmark the Type diagrams, and build your piping system on a foundation of safety—one hanger at a time.
Understanding MSS SP-69: The Definitive Guide to Pipe Hanger and Support Selection
, titled "Pipe Hangers and Supports - Selection and Application," is a Standard Practice developed by the Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry.