Weldolet, Threadolet, Sockolet Explained
Projectmaterials December 13, 2018 3 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
Category: Fittings
Read More »
ASME Buttweld Fittings Explained
Projectmaterials September 20, 2017 3 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 3 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 3 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
Projectmaterials.com is managed by Tecnos SA, Lugano Switzerland. 
EU Origin
Factory Prices
Top Quality