Bw Olets
Size range: DN6-DN600
Standard: GB/T19326, MSS-SP-97, any non-standard as drawing
Pressure: STD, XS, SCH160, XXS
Product introduction
The bw olet is a branch connector installed on the main pipeline (or pressure vessel shell) to lead the branch pipeline from the main pipe. It is connected to the main pipe and branch pipe by butt welding to form a solid integrated structure. It is widely used in pipeline systems in the oil, natural gas, chemical, power and other industries.
Product Features
High-strength Connection
The bw olet adopts butt welding connection. The connection strength of the weld can reach more than 95% of the strength of the main pipe material and can withstand a working pressure of up to 70MPa (about 700 bar). This makes it suitable for high-pressure pipelines such as natural gas transmission pipelines and refining units.
Arc Base
The base of the bw olet adopts an arc design with a curvature radius of the main pipeline R1=outer diameter of the main pipe/2, which reduces the stress concentration factor to 1.05, effectively avoiding fatigue cracking caused by excessive local stress, and is particularly suitable for frequent start-stop and pulsating pressure systems.
Complete Specifications
We provide a full range of butt-welded olets from DN15 (1/2 inch) to DN600 (24 inches), which meet the ASME B16.9 and MSS SP-97 size standards, and the pressure levels cover Class 3000, 6000 and 9000.
Product Applications
Oil And Gas Pipeline System
In long-distance oil and gas pipelines, butt-welded olets are mainly used to lead branches from the main pipeline to achieve the distribution, monitoring or sampling of oil and gas resources.
Chemical Process Pipeline Branch Connection
In the production system of chemical plants, butt-welded olets are used on the main pipelines of large reactors, distillation towers and other equipment to facilitate the installation of auxiliary pipelines such as exhaust, venting, injection and circulation systems.
Boiler And High-pressure Pipeline System
In power plant boilers and high-temperature and high-pressure steam pipelines, branches need to be set up through butt-welded olets to lead out drain pipes, sampling ports, pressure measuring points, etc.
Food And Pharmaceutical Process Piping System
In the piping system of the food, beverage and pharmaceutical industries, the bw olets is used to lead out branch pipelines such as cleaning, drainage, sampling, etc. from the main pipeline.
Product Specifications
| Product Name | BW LOET (Butt Weld Outlet) |
| Size Range | DN6 - DN600 |
| Standard | GB/T 19326, MSS-SP-97, Non-standard (as per drawing) |
| Pressure Rating/Schedule | STD (Standard), XS (Extra Strong), SCH 160, XXS (Double Extra Strong) |
| Carbon Steel (CS) | Q235A, Q235B, 20#, A105, 20Mn, 45#, A350 LF2 |
| Alloy Steel (AS) | 15CrMo, 12CrMoV, 12Cr1MoV, 10CrMo910, 16Mn (Q345B/C), 42CrMo, F91, F11, F9, 12Cr2Mo, 12MnNb, 1Cr5Mo, Cr15Ni20, F22, 35CrMo, SA333 GR6, A350 LF3 |
| Stainless Steel (SS) | F304 (S30408), F316 (S31608), F321 (S32168), 304L (S30403), F316L (S31603), 00Cr17Ni14Mo2, F51 (S22253), F60, F304H (S30409), F316H (S31609), F321H (S32169), M-400, F53, 316Ti, 317, 317L, 347, 347H (S34779), 310S, F5, etc. |
FAQ
Can the bw olets be used to repair the main pipeline?
The bw olets is usually used for new branch connections. Although it can assist in local repairs in some cases, if the main pipeline has been damaged over a large area, it is recommended to use a special repair sleeve or replace the pipe section.
Does the bw olets support non-standard customization?
Yes, we can customize the bw olets with non-standard size or structure according to the main pipe size, branch pipe size, special pressure level and material requirements provided by the customer.
How to protect the bw olets during transportation?
During transportation, the bw olets usually uses protective caps to close the interfaces at both ends, and uses anti-rust oil to treat the surface. At the same time, it is packed in wooden boxes, pallets or shockproof materials to prevent bumps, corrosion and pollution, and ensure that the arrival is intact.
What tests need to be done after the bw olets is welded?
After the welding of the butt-welded branch pipe is completed, non-destructive testing (such as ultrasonic testing or radiographic testing) should be carried out to confirm the quality of the weld, and a water pressure test or air tightness test should be carried out according to the system requirements to ensure that there is no leakage risk in the connection part.
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