Category: Fittings

Branch fittings weldolet, sockeolet, thredolet, brazolet

Weldolet, Threadolet, Sockolet Explained

Projectmaterials December 13, 2018 5 Comments

What are branch connections (or pipe branch outlet fittings aka “Olets”)? Olet fittings are a family of forged products used to make 45 or 90

ASME Buttweld Fittings Explained

Projectmaterials September 20, 2017 6 Comments

Buttweld fittings are used to change the pathway of a pipeline (elbows), reduce/increase its bore size (reducers), branch (tees, cross) or blind it (butt weld cap). BW fittings are used for pipes above 2 inches in diameter, whereas socket weld and threaded fittings are used for smaller size pipes.

BW Fittings Materials: ASTM A234, A403, A815, B366

Projectmaterials September 20, 2017 1 Comment

A complete overview of ASTM materials for buttweld fittings: ASTM A234 (carbon and low-alloy steel), ASTM A403 (stainless steel), ASTM A815 (duplex and super duplex),

Buttweld Fittings Sizes ASME B16.9

Projectmaterials September 20, 2017 No Comments

The ASME/ANSI B16.9 specification covers the dimensions and the tolerances of carbon and alloy butt weld fittings. The MSS-SP 43 specification integrates ASME B16.9 to

Socket Weld and Threaded Fittings (ASME B16.11)

Projectmaterials September 20, 2017 5 Comments

How to define forged fittings? The term “forged fittings” refers to two families of pipe fittings (socket weld and threaded) used for small bore pipes

Weldolet Dimensions Charts (MSS-SP 97)

Projectmaterials September 20, 2017 5 Comments

Weldolet dimensions and weights (“center of the run to Weldolet face”, “size-on-size” and “reducing” Weldolets sizes by NPS and schedule, and “run sizes combinations”). WELDOLET

Stub Ends for Flanged Joints

Projectmaterials September 20, 2017 4 Comments

What is a stub end and why should it be used? Stub ends are buttweld fittings that can be used (in combination with a lap

Fillet Weld for Socket Fittings

Projectmaterials June 7, 2017 No Comments

A fillet weld is defined, by the American Welding Society (AWS), as “A weld of approximately triangular cross section joining two surfaces approximately at right

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