Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Malleable Iron Threaded Fittings - Pressure vs. Temperature Rating

ASME/ANSI B16.3 Malleable Iron Threaded Fittings - Pressure and Temperature Ratings.

This Standard for threaded malleable iron fittings Classes 150, and 300 provides requirements for the following:

  • (a) pressure-temperature ratings
  • (b) size and method of designating openings of reducing fittings
  • (c) marking
  • (d) materials
  • (e) dimensions and tolerances
  • (f) threading
  • (g) coatings

Pressure-temperature ratings can be found in the table below:

Malleable Iron Threaded Fittings - Pressure vs. Temperature Ratings
Temperature Pressure-Temperature ratings for malleable iron threaded fittings (psig)
Class
150300
1/4 - 1 inches1 1/4 - 2 inches2 1/2 - 3 inches
(oF)(oC)
-20 to 150 -29 to 66 300 2000 1500 1000
200 93 265 1785 1350 910
250 121 225 1575 1200 825
300 149 185 1360 1050 735
350 177 150 1150 900 650
400 204 - 935 750 560
450 232 - 725 600 475
500 260 - 510 450 385
550 288 - 300 300 300
  • 1 psi = 0.0689 bar = 6.89 kPa

Related Topics

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2005). Malleable Iron Threaded Fittings - Pressure vs. Temperature Rating. [online] Available at: https://www.engineeringtoolbox.com/iron-threaded-fittings-d_855.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































3.27.8

.