Complete dimension charts of threadolet fitting

What is a threadolet used for?

Threadolet is used for 90 degree self-reinforcing branch accessories for pipe line fitting.  As its names represent how that will connect to the run pipe (header pipe). Threadolet is a type of self-reinforced branch fitting developed by a company called Bonney Forge. And this is suitable for small bore branch connection pipes. A threadolet is also known as threaded outlet. These outlets come in several different standards, thickness and size etc. These are mostly used for low-pressure 90-degree pipe branches connection. The branch pipe side is screwed on the threadolet and that is welded on the run pipe or main pipe. Its threads are generally of the NPT (National Pipe Thread) type and conform to the ASME B1.20.1 specification.

This is available in 02 varieties, these are full size or reduced size. It is used in small bore pipe branch connections. That is similar to the sockolets but its branch connection end is threading type. Another measure of changes in Weldolet and threadolet is that weldolets are used for big bore branch connections as well but same designs as threadolets branch connections. Only types of connection changes that mean threadolet have come with threads end joints whereas Weldolet and Sockolets have a weld end type connection. Threadolets come from the threaded pipe line fittings family and are available in classes 3000#, 6000# & 9000#. Threadolets are used for smaller pipe sizes and low-pressure applications.

Threadolet dimension chart Class 3000 in inches and MM

Threadolet dimension chart CL 3000 in inchs and MM

Threadolet dimension chart Class 6000 in inches and MM

Threadolet dimension chart CL 6000 in inches and MM

HOW TO SELECT A Threadolet 

Bore size(mm) – (Run pipe size to branch pipe size) for example 100X15 , select your pipe line system pressure class/rating/schedule pipe (where it is to be used) – for example CL 3000, SCH 80, Which type of Olets are required – Sockolets or weldolets , threadolets or other. What types of end connection are required – like as Socketweld, weldolets, threadolets. Which materials are to be used – CS/MS/SS/or other as per your requirement you can choose, which dimension standard to be used – like MSS SP97 or other, and last which design standard to be used – like ASTM A105  or other. These pipe fittings are designated as Class CL-2000/3000/6000 for threaded end pipe fittings and Class 3000, 6000, and 9000 for socket-weld end fittings. 

Class 3000 to be used for up to schedule 80 and below pipes, Class 6000 to be used for above 80 sch and up-to 160 sch pipes. All dimensions and tolerances according to ASME B16.9, ASME B16.25 and MSS SP-97. with other dimensions and tolerances in accordance with ANSI/ASME B16.11, threaded ends in accordance with ANSI/ASME B1.20.1

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