It is possible to manufacture special angle elbows other than 90° and 45°.
Elbows are categorized into 90° elbows, 45° elbows, and 180° elbows according to JIS standards. In cases where these angles are insufficient for piping design, JIS standards recognize "special angle elbows," which can be manufactured at special angles as needed for piping design. Elbows manufactured at special intermediate angles such as 60°, 30°, and 135° are referred to as "special angle (end angle) elbows." At Benkan Kiko, we respond meticulously to our customers' requests and offer custom manufacturing of end angle elbows. **Benefits of adopting Benkan Kiko's end angle elbows:** - If elbows are processed on-site during installation, the product warranty for those fittings will be voided, so it is safer to manufacture them at the required angles in advance. - Processing elbows to specific angles or bevel ends on-site requires equipment and expertise, making it safer to use pre-processed products. - Products can be manufactured with dimensional accuracy based on JIS standards. - We can issue production drawings and delivery drawings that include detailed dimensions of the products as per your requests.
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In JIS B 2312 and JIS B 2313, Appendix JB specifies special angle elbows, while JIS B 2311 specifies them in Appendix A, "Specially Shaped Pipe Fittings." The special angle θE(L) and θE(S) are defined as angles less than 180° excluding 45°, 90°, and 180°, and are specified by the orderer. Examples of symbols for special angle elbows are as follows: Example 1: For a long elbow at 89.4°: 89.4E(L) Example 2: For a short elbow at 66°22'15": 66°22'15"E(S) Example 3: For a long elbow at 22.5°: 22.5E(L) At Benkan Kiko, we can process angles not only in degrees but also in minutes and seconds according to customer requests. Product markings and product inspection certificates (mill sheets) will also be displayed using the above symbols. Contact Information: Project Sales Department, Eastern Japan Sales Section: 03-3777-1521 Project Sales Department, Western Japan Sales Section: 06-6482-1851
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As examples of our delivery destinations, we have a wide range of manufacturing achievements in various fields such as gas pipelines, oil pipelines, power plants, oil and chemical plants, shipbuilding, and air conditioning equipment, etc. To meet diverse demands, we are capable of manufacturing with a variety of materials, including carbon steel, alloy steel, stainless steel, high-strength steel, as well as duplex stainless steel, super stainless steel, aluminum alloys, nickel alloys, and titanium alloys.
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From residential water supply and hot water piping to massive pipelines in large-scale plants, piping that supports daily life is spread all over the world. Benkan Kiko Co., Ltd. is involved in the manufacturing of welded pipe fittings, which are essential piping components. We provide optimal products tailored to the piping environment (design, usage conditions, etc.) and construction circumstances, not only for general building water supply and hot water piping but also for power plants, gas plants, refineries, oil and chemical plants, shipbuilding, and more, where strict quality standards are required.
