The MSS SP-69 standard provides the industry-accepted guidelines for the selection and application of pipe hangers and supports.
While it was long a standalone document, it has officially been withdrawn and integrated into the comprehensive MSS SP-58-2018 standard to create a single-source reference for the industry. 📋 Key Contents of MSS SP-69
When you look at the PDF or historical versions, the standard covers:
Selection Criteria: How to choose supports based on system temperature (Hot vs. Cold).
Spacing Standards: Recommended maximum distances between supports for different pipe materials.
Material Compatibility: Ensuring support materials don't cause corrosion or electrolysis when touching the pipe.
Specialized Systems: Specific guidance for plastic (CPVC), glass, cast iron, and fiberglass reinforced pipe (FRP). 🔗 Related Standards MSS SP-69 works alongside several other critical codes:
MSS SP-58: Historically covered the design and manufacture of the components themselves.
ASME B31.1 & B31.3: The overarching codes for power and process piping that often mandate compliance with MSS standards.
MSS SP-127: Focuses on bracing for seismic, wind, and dynamic loading. 🚀 Finding the PDF
You can find previews and older versions of the standard on document sharing sites: MSS SP-69 (2003 Edition) on Scribd. ANSI/MSS SP-69 Preview on the ANSI Webstore.
MSS SP-58-2018: The current official standard that now includes all SP-69 content.
📌 Note: For engineering design, always ensure you are using the latest revision (currently SP-58-2018) as older spacing tables may not reflect modern material safety factors. MSS SP-69-2003 | PDF - Scribd
You might also like * Gas Cylinder Filling Standards IS 15975. ... * Un Reg.100-2021. ... * Ena TS 12-6-2-2014. ... * CMVSS 302. . MSS SP 69 PDF - Scribd
Understanding MSS SP-69: The Standard for Selecting Pipe Hangers and Supports
If you are working in industrial piping, mechanical engineering, or construction, you’ve likely come across the designation
. This document is a cornerstone of the industry, officially titled "Pipe Hangers and Supports – Selection and Application." It provides critical guidelines for ensuring that piping systems are safely and effectively supported throughout their operational life.
In this post, we’ll break down what the MSS SP-69 standard covers, why it’s essential for your project, and how it works alongside other industry codes. What is MSS SP-69? standard was developed by the Manufacturers Standardization Society (MSS)
of the Valve and Fittings Industry. It serves as a practical guide for engineers and contractors to select the right types of hangers and supports based on the specific needs of a piping system.
focuses on the materials, design, and manufacture of these components, is all about their selection and application in the field. Key Content and Coverage
The standard is comprehensive, covering everything from basic material requirements to complex spacing charts. Key sections typically found in a MSS SP-69 PDF Classification of Piping Systems: Categorizing systems to determine support requirements. Material Requirements: mss sp 69 pdf
Guidelines for selecting materials that can withstand environmental conditions and service loads. Hanger and Support Spacing:
Crucial tables that define the maximum distance between supports to prevent pipe sagging and stress. Movement Handling:
Selection criteria for hangers and supports that accommodate pipe movement, such as thermal expansion or contraction. Specialty Piping:
Guidance for supporting plastic, glass, ductile iron, and fiberglass reinforced pipe (FRP). Attachments: Rules for making attachments via welding or bolting. Why the "Selection and Application" Standard Matters
Using the right support isn't just about holding a pipe up; it's about system integrity. Improperly supported pipes can lead to: Excessive Stress: Leading to leaks or catastrophic joint failure. Vibration Issues: Which can damage sensitive equipment like pumps and valves.
Creating "low points" where fluid can collect, leading to corrosion or water hammer. MSS SP-69 vs. ASME B31.1 and B31.3
MSS SP-69 is often used as a companion to major piping codes like ASME B31.1 (Power Piping) ASME B31.3 (Process Piping)
. While ASME codes provide the "legal" requirements for safety and pressure, they often refer to MSS standards for the specific hardware and spacing details needed to meet those requirements. For example, engineers frequently consult the Pipe Support Spacing Chart
within MSS SP-69 to determine the horizontal span for steel piping, ensuring compliance with broader safety codes. How to Access the Standard
Because MSS SP-69 is a copyrighted technical standard, it is typically purchased through authorized distributors like the ANSI Webstore
. However, many professionals access reference versions or summaries through engineering platforms and document repositories like for educational purposes.
Whether you are designing a high-pressure steam line or a simple water distribution system, following
ensures your supports are up to the task. By standardizing the selection process, it helps maintain safety, reduces maintenance costs, and extends the lifespan of the entire piping network. comparison table
between the support spacing requirements of MSS SP-69 and ASME B31.1?
MSS SP-69, titled "Pipe Hangers and Supports - Selection and Application," is no longer an active standalone standard. It was officially withdrawn as an American National Standard on March 11, 2014.
Its content has been fully integrated into the consolidated MSS SP-58-2009, which now covers materials, design, manufacture, selection, application, and installation. 🛠️ Scope of the Original Standard
Before its withdrawal, SP-69 provided comprehensive guidelines for the engineering of piping support systems, including:
Classification of Systems: Rules for hot, ambient, and cold piping.
Load Considerations: Calculations for deadweight, hydrostatic, thermal, and occasional loads (seismic, wind, ice).
Material Requirements: Standards for metals, plastics, glass, and fiberglass-reinforced pipe (FRP). Type 41 and 42: Added for seismic supports
Hanger Spacing: Maximum recommended distances between supports to prevent excessive deflection or vibration.
Attachments: Specifications for welding, bolting, and supports for insulated lines. 📄 How to Access the Document
Since this is a copyrighted technical standard from the Manufacturers Standardization Society (MSS), the full PDF is not legally available for free in the public domain. However, you can find it through the following channels:
Current Official Version: Purchase the consolidated MSS SP-58-2018 directly from the MSS Webstore.
Historical Reference: You can view older, archived versions of SP-69 for reference on document-sharing platforms like Scribd or Academia.edu.
Library Access: Many engineering libraries or university repositories provide access to MSS standards through subscriptions like IHS Markit or Techstreet. MSS SP 69 PDF - Scribd
MSS SP-69-2003 (Pipe Hangers and Supports - Selection and Application) is a critical industry standard that provides guidelines for selecting and applying pipe hangers and supports in accordance with MSS SP-58. This standard serves as a basis for common practice between manufacturers and users, ensuring that hanger selection aligns with material design, load ratings, and installation requirements. Key Aspects Covered in MSS SP-69:
Selection & Application: Detailed guidance on choosing the right hangers based on piping system requirements.
Support & Hanger Types: Covers materials, design, and manufacture, aligning with MSS SP-58-2009.
Temperature Considerations: Guidance on supports for various temperature applications.
Installation Practices: Standards for the installation and inspection of hangers.
For a full understanding, this standard is often referenced alongside MSS SP-89 (Fabrication and Installation) and MSS SP-58.
Note: You can view or download previews of MSS SP-69 and related standards on Scribd or UpCodes. If you'd like, I can:
Find the most recent edition of the standard (SP-69 often references updated SP-58).
Provide a list of common hanger types listed in the document (like clevis or riser clamps).
Locate specific spacing requirements for copper vs. steel pipe.
The MSS SP-69 standard is an essential "how-to" guide for the industry, specifically focusing on the selection and application of pipe hangers and supports. While many of its core contents have been integrated into the broader MSS SP-58 standard since 2009, it remains a fundamental reference for ensuring piping systems are supported correctly under various thermal and load conditions. Review: MSS SP-69 – Selection and Application MSS SP 69 PDF - Scribd
Developing a paper on (Pipe Hangers and Supports – Selection and Application) requires understanding its role as the industry standard for selecting and applying hangers for all piping systems. Abstract/Overview MSS SP-69 is a consensus standard developed by the Manufacturers Standardization Society (MSS)
. It serves as a guide for engineers and contractors to ensure that piping supports are selected based on the specific movement, material, and weight requirements of a system. Core Sections for Your Paper Objective and Scope
: Define the standard's purpose—to provide a basis for common practice among manufacturers and users. Classification of Piping Systems Always check the title page of your PDF
: Detail how the standard categorizes systems (e.g., hot, cold, or fire protection) to determine support types. Material and Design Requirements Compatibility
: Materials in contact with pipes must be compatible to prevent corrosion or electrolysis.
: Supports must withstand static loads and specified dynamic movements. Hanger Selection & Spacing : Use the standard's spacing tables (like those seen in B-Line series references
) to discuss maximum recommended distances between supports. Specialty Piping Applications
: Address specific guidelines for plastic, glass, fiberglass reinforced (FRP), and ductile iron piping. Reference Documents
To develop a comprehensive technical paper, you should reference these companion standards frequently cited in Scribd's MSS SP-69 documentation : Hanger materials, design, and manufacture. : Fabrication and installation practices. : Terminology guidelines. Primary Source Access
The full text is often restricted to members or paid users. You can purchase official copies or view previews via the ANSI Webstore MSS Standard Practice Store ANSI Webstore detailed outline
for a specific section, such as the "Selection for Pipe Movement" or "Material Compatibility"? MSS SP 69 PDF - Scribd
MSS SP 69 provides specifications for stub ends that are used in conjunction with lap flanges in piping systems. These stub ends are essentially short pieces of pipe that are welded to the end of a pipe run and then connected to a lap flange, providing a method for connecting pipes without welding to flanges directly.
MSS SP 69 is periodically revised. The original was released in the 1960s. Major updates occurred in 1996, 2003, 2016, and 2022.
If you are working with a historic MSS SP 69 PDF from 1996, you will miss:
Always check the title page of your PDF for the revision date. For a new project, use the latest edition. For an existing 1990s plant, track down the exact revision used for the original design to ensure replacement parts match.
Let’s take a real-world scenario. A maintenance supervisor notices a sagging 8-inch steam line at 400°F. The existing hanger is a simple rod and clevis (Type 1), but the pipe has moved 3 inches since startup.
Using an MSS SP 69 PDF, the supervisor turns to the section on Thermal Movement. They learn that a Type 1 hanger allows no horizontal travel. They then flip to Type 9 (Roller Support) or Type 38 (Variable Spring). The PDF’s load chart shows a Type 38 spring can handle 6,000 lbs while allowing 3 inches of vertical deflection. Problem solved.
Key data to extract from the PDF:
The MSS SP 69 PDF is more than a file—it is a decision-making tool that prevents pipe failures, reduces maintenance costs, and ensures code compliance. Whether you are designing a cryogenic LNG line or retrofitting a 1950s boiler house, this standard provides the visual grammar needed to specify and install supports correctly.
By obtaining a legitimate, current version of the PDF, you equip yourself with:
So, before your next outage or greenfield project, download the official MSS SP 69 PDF, bookmark the Type diagrams, and build your piping system on a foundation of safety—one hanger at a time.
Looking for more? Pair your MSS SP 69 PDF with MSS SP-58 (Materials) and MSS SP-127 (Spring Supports) for a complete library. Always consult with a licensed structural or piping engineer for load calculations beyond the standard’s scope.
Based on your request, you are looking for a guide or access to MSS SP-69.
Here is the critical information regarding this standard and how to use it.