Tubefittings

All you need is fittings

To create a complete pipeline, you need the right pipe fittings for welding. Here you will find what your heart desires. No matter whether you want to create a branch, expand or reduce a pipe diameter or are looking for a pipe closure, our selection is first-class. Simply choose from our ready-to-ship range of pipe reducers in concentric and eccentric designs, T-pieces with the same branch or T-pieces with reduced branch, caps, dished heads, saddle sockets and branch sockets.

Does that fit?
Yes, that fits! We have been stocking our standardized steel fittings for pipelines from certified manufacturers for over 30 years. You too can benefit from our experience and our tested quality standards. For good reason, we were awarded the ISO 9001 quality management certificate for the first time in 1994. We are still committed to this quality standard today and have it regularly checked to reflect the latest findings.

I need a reduction for my horizontal line, which type should I choose?
Eccentric reductions are often installed in horizontal pipelines.

You prefer to weld your pipe fittings if they have a factory-applied welding bevel according to DIN2559/22 or DIN2559/21.
According to EN10253-2, all pipe fittings for welding with a wall thickness of 3 mm or more must have a welding chamfer. The previously valid DIN 2559 was replaced by DIN EN ISO 9692-1. The code number 1.5 of DIN EN ISO 9692-1 corresponds to the previous form according to DIN2559 code number 22 and continues to represent the most common weld seam preparation. Our steel pipe fittings naturally comply with this regulation.

I looked for ASME fittings at protubo.biz. Is there also a welding bevel for this?
Fittings according to the ANSI B16.9 and ASME B16.9 standards also have weld seam preparation.

You prefer to use European quality goods.
Our fittings made from S235, St37.0, St35.8/I, P235GH and WPB or P265GH come almost exclusively from European manufacturers. The origin of the goods is displayed on the item detail page.

Do you need the installation dimensions to select the right weld-on fittings? No problem!
We also list the dimensions required for installation on our item detail pages and show them together with wall thicknesses and pipe connections in our data sheets. Dimensional sketches are also included in both views for better understanding.
Our fittings are generally standardized and comply with the specified standards EN10253-2 and ASME B16.9/ANSI B16.9. As a rule, this version is congruent with the previous standards DIN 2615, DIN 2616, DIN 2617, DIN 2618, DIN 28011 and DIN 86103/B.

Hot, hotter, red hot steel fittings!
Did you know that our steel fittings are really hot parts? Our fittings meet the normalized heat treatment condition N according to EN10253-2. To do this, the final forming must take place at very hot temperatures of +750°C to +980°C or additional heat treatment must be carried out.

I would like to order my pipe caps in the material P235GH. Is that possible?
The material P235GH is currently only intended as a steel for seamless and welded pipes. However, caps are not made from such tubes but are formed from sheet metal. The sheets used for cap forming meet the higher quality boiler plate material P265GH. The pipe caps are therefore also designated P265GH, even if the steel grade P235GH is intended for the pipe or pressure vessel.

Caps and dished heads: A nice finish!
Use our caps according to DIN 2617, EN10253-2-A and EN10253-2-B, as well as the dished heads according to DIN 28011 to close pipes and containers.