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Fittings Product List

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Stainless steel butt-weld pipe fittings (for piping)

Stainless steel butt-weld pipe fittings (for piping)

This is a butt-welded pipe fitting compatible with stainless steel pipes for piping (JIS G 3459).

Benkang Kiko's welded pipe fittings inherit the technological expertise cultivated by Nippon Benkan Kogyo, established in 1947, and Nittetsu Sumitomo Kiko, which has been manufacturing since 1953. They are capable of handling various materials, not only carbon steel but also stainless steel, alloy steel, and non-ferrous metals, as well as a wide range of diameters from 1/2 to 80 inches, enabling them to adapt to various piping environments (design and usage conditions). Additionally, they have obtained various certifications necessary for production, such as JIS and ISO 9001, and have a robust technical and quality assurance system to support these certifications.

  • Piping materials (copper pipes, cast iron pipes)
  • Fittings

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Carbon steel butt-weld pipe fitting (white)

Carbon steel butt-weld pipe fitting (white)

We provide butt-welded pipe fittings that meet customer needs, ranging from general-purpose specifications for standard construction to specialized specifications for unique plants.

Butt-welded pipe fittings are designed to permanently join piping by welding them together. The "BENKAN" brand is recognized globally as synonymous with welded pipe fittings, and we have absolute confidence in the quality that underpins its reliability. The surface is coated with zinc plating.

  • Water Treatment
  • stone
  • District heating and cooling/heat source system

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Carbon steel butt-weld pipe fittings (for piping)

Carbon steel butt-weld pipe fittings (for piping)

We provide butt-welded pipe fittings that meet customer needs, ranging from general-purpose specifications for general construction to special specifications for specialized plants.

Butt-welded pipe fittings are designed to permanently join piping by welding them together. The "BENKAN" brand is recognized globally as synonymous with welded pipe fittings, and we have absolute confidence in the quality that underpins its reliability. These are seamless pipe fittings made from materials that can be used at high temperatures, low temperatures, and high pressures.

  • Water Treatment
  • stone

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Forged steel fittings for thermal power plants

Forged steel fittings for thermal power plants

We can respond to the special shapes of welded pipe fittings used in boiler applications with high technical skills!

It is a joint that makes you think it could be a sculpture, finished to a stunning degree. This is made by "cutting out," which means it is created by machining from forged material, not through plastic processing. Among the welded pipe joints used in boiler-related applications at thermal power plants, there are products with large and special shapes that cannot be made through plastic processing (stretching, compressing, bending, or pulling steel materials). For such requests, we manufacture by cutting from forged materials rather than using conventional plastic processing. The shapes mainly include Y-PIECE, which branches at the same angle from one direction; LATERAL, which branches at an angle like a branch from one direction; and T-PIECE, which branches in a T shape. The diameters primarily range from 400 to 800 mm, with some larger ones weighing around 10 tons. Since these products are used under extremely harsh conditions, the specifications include strict component regulations for the materials used and heat treatment conditions based on the technical standards for power generation thermal equipment. Not only do the shapes need to fit, but we also conduct UT tests on the materials, tensile tests, impact tests, hardness tests, and penetration tests on the products, and we provide the final products only after all tests are cleared.

  • Steel
  • Secondary steel products
  • Railway Construction

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Welded pipe fittings for piping [non-ferrous metals]

Welded pipe fittings for piping [non-ferrous metals]

Benkan Kiko also manufactures welded pipe fittings made from non-ferrous metals.

"Non-ferrous metals" refer to metals that are different from "carbon steel," "alloy steel," and "stainless steel," and include types such as "aluminum alloys" and "nickel alloys." Benkan Kiko manufactures welded pipe fittings made from "non-ferrous metals," which are difficult to control in shaping, utilizing the metal plastic processing technology cultivated over many years, and has a wealth of delivery achievements. Additionally, by leveraging various material procurement sources developed over time, we have established a system that can support customers' piping designs by accommodating a wide variety of steel types. We can also handle many other materials, including "Inconel," "Hastelloy," and "Monel," so please contact us for more details. We also introduce "non-ferrous metals" on the Benkan Kiko blog, so please take a look.

  • Railway Construction
  • Special Construction Method
  • others

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Welded pipe fittings with hot-dip galvanized coating

Welded pipe fittings with hot-dip galvanized coating

Due to cutting processing, the step of removing the zinc plating adhered to the bevel area is unnecessary!

The product we are introducing this time is the NBG joint, which has undergone cutting processing on its zinc plating. When performing the peeling work of the zinc plating attached to the groove section, leaving any residue and then proceeding with welding can lead to the generation of harmful substances due to the heat effects during welding. Therefore, there is a concern about the generation of harmful substances, and the peeling work creates a burden and hassle on-site. The NBG joint is a welded pipe joint from which the zinc plating attached to the groove section has already been removed through cutting processing. As a result, it eliminates the need for the peeling work process before performing the surrounding welding, alleviating concerns during the welding process and improving work efficiency. The NBG joint is primarily used in air conditioning equipment that creates a comfortable living environment and is active in various fields such as large building facilities and commercial establishments. Please consider the NBG joint, which can eliminate the peeling process and reduce concerns about harmful substance generation as well as the burden and hassle of peeling work. NBG stands for "Non Bevel Galvanized," a unique expression of Benkan Kiko.

  • Water Treatment
  • stone
  • District heating and cooling/heat source system

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Large-diameter welded pipe fittings - branch pipes

Large-diameter welded pipe fittings - branch pipes

Benkan Kiko's large-diameter lateral pipes reduce on-site welding work!

The photo shows a lateral pipe where the branch pipe is connected diagonally to the main pipe. The connection of the branch pipe requires saddle welding on a curved surface, and since the branch pipe is connected at an angle rather than at a right angle, the connection surface becomes elliptical, which demands a very high skill level from the welder. Additionally, a backing plate (pad) is welded to the main pipe using fillet welding. The backing plate is applied to reinforce the piping branch, and when performing prefabrication or on-site piping, there are concerns that directly welding support materials or foot materials to the product may affect the quality of the main pipe and the qualifications of the welders performing that welding. Therefore, the backing plate is used to address such concerns. The manufacturing of this backing plate also requires high forming skills to match the curved shape of the main pipe, but Benkan Kiko is capable of handling this. At Benkan Kiko, we can supply high-quality products through excellent welding technology and precise forming techniques.

  • Joints between components

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Welded pipe fittings for air conditioning equipment piping.

Welded pipe fittings for air conditioning equipment piping.

We offer a wide range of welded pipe fittings for air conditioning equipment piping, available in various sizes and wall thicknesses. [Same-day shipping for in-stock items is also possible.]

■ White gas pipes for air conditioning equipment (FSGP coated products) ■ For cooling water piping ■ Stainless steel pipes for return lines in steam piping ■ Black gas pipes for steam and oil piping (FSGP products) Among others, we offer a wide range of welded pipe fittings in all these materials, with various sizes and wall thicknesses available in stock. They are used in large buildings, commercial facilities, hotels, factories, and other central air conditioning buildings. Please feel free to contact us for quotes or inquiries.

  • Fittings

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Carbon steel butt-weld pipe fittings (for general piping)

Carbon steel butt-weld pipe fittings (for general piping)

We offer butt-welded pipe fittings that cater to customer needs, ranging from general-purpose specifications for ordinary construction to special specifications for specialized plants.

Butt-welded pipe fittings are designed to permanently join piping by welding them together. The "BENKAN" brand, including BENKANKIKOH, is recognized globally as synonymous with welded pipe fittings, and we have absolute confidence in the quality that underpins its reliability. They are intended for general piping use with a temperature range of approximately 0 to 350°C and a pressure of about 1 MPa.

  • Water Treatment
  • stone

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Duplex stainless steel welded pipe fittings

Duplex stainless steel welded pipe fittings

At Benkan Kiko, we manufacture welded pipe fittings made of duplex stainless steel.

The material commonly referred to as duplex stainless steel is characterized by its high resistance to corrosion, as well as its greater strength compared to austenitic stainless steel. This allows for thinner design plate thicknesses, leading to advantages such as weight reduction, downsizing due to increased flow rates, and cost reduction in piping. At Benkan Kiko, we utilize our long-established metal forming technology and quality assurance system to provide high-quality duplex stainless steel welded pipe fittings, assisting our customers with their piping design and cost reduction. Please feel free to contact us with any questions or inquiries. Project Sales Department, Eastern Japan Sales Division TEL: (03) 3777-1521 / FAX: (03) 3777-1567 Project Sales Department, Western Japan Sales Division TEL: (06) 6482-1581 / FAX: (06) 6482-1824

  • Prefab
  • others
  • stone

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Welded pipe fittings for piping [Nickel-based alloy]

Welded pipe fittings for piping [Nickel-based alloy]

At Benkan Kiko, we also manufacture fittings made from nickel-based alloys.

At Benkan Kiko, we manufacture joints made from nickel-based alloys, which are difficult-to-form materials, utilizing our long-established metal plastic processing technology, and we have many achievements in this area. Nickel-based alloys are used as heat-resistant and corrosion-resistant materials, and due to their high strength, they are also suitable for use in high-temperature environments. The nickel-based alloy joints that can be manufactured at Benkan Kiko include the following steel grades: ASME UNS NO N10276, N06022, N10655, N06210, N02200, N02201, N06625, N08020, N06002, N06601, N06230, N08800, N08810, N06600, N08825, N06690.

  • Prime movers, torque converters, hydraulic equipment, generators
  • Prefab
  • others

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JIS B 2309 Stainless Steel Butt-Weld Pipe Fittings for General Piping

JIS B 2309 Stainless Steel Butt-Weld Pipe Fittings for General Piping

Su pipe fittings (JIS B 2309 general piping stainless steel butt-weld pipe fittings) can be delivered in a short lead time due to inventory availability.

Su joints (JIS B 2309) are manufactured primarily for use in general water supply and hot water piping in hotels, apartments, hospitals, building construction, and factory piping. They are characterized by being thinner than butt-welded pipe fittings produced according to JIS B 2311 and JIS B 2312, which allows for cost reduction. Additionally, considering automatic welding at the construction site, the bevel is designed as a plain end. The maximum allowable pressure is set at 2.0 MPa, and due to the thin wall thickness, even small diameter fittings feature a wide inner diameter, ensuring sufficient flow capacity. Benkan Kiko holds JIS B 2309 Su joints in stock, allowing for relatively short delivery times. <Stock Range> Types: 90EL, 45EL, 90ES, R(C), R(E), T(S), T(R), LJSE Sizes: 30Su to 300Su

  • others

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Welded pipe fittings for piping, made of alloy steel (low alloy steel, high chromium steel)

Welded pipe fittings for piping, made of alloy steel (low alloy steel, high chromium steel)

For alloy steel fittings for piping, please inquire with Benkan Kiko, the number one in domestic performance.

Pipe fittings made of alloy steel contain elements such as Cr (chromium) and Mo (molybdenum) and are mainly used for boiler applications, biomass power generation, main piping and reheating piping for thermal power generation, as well as high-temperature and high-pressure piping for petroleum refining and the chemical industry. Benkan Kiko has a proven track record in the manufacturing of various alloy steel fittings. Additionally, for some materials, we have stock of the steel pipes required, allowing us to deliver relatively quickly. Achieving a carbon-neutral society necessitates reducing CO2 emissions through increased efficiency in plants. Low-alloy steel and high-chromium steel pipe fittings that can withstand harsh high-temperature process environments have become essential products under such conditions. Benkan Kiko is also contributing to society by trying to manufacture special specifications and new materials. <Representative Steel Grades> (JIS Standards) PA12, PA22, PA23, PA24, PA25, PA26 (Thermal Power Standard Materials) Fire STPA28, Fire STPA24J1, Fire STPA29 (ASME/ASTM) A234WP1, WP12, WP11, WP22, WP5, WP9, WP91, WP92

  • Prefab
  • others
  • stone

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Welded pipe fittings for piping - Benkan Kiko High-strength steel fittings for piping

Welded pipe fittings for piping - Benkan Kiko High-strength steel fittings for piping

For piping fittings made of "high-tensile steel," please contact Benkan Kiko.

"High-strength steel" is a type of steel material that has higher tensile strength and strength compared to general materials. Due to its characteristics, it allows for thinner wall thickness in piping design, enabling smaller diameters and lighter weights of pipes. This makes it a widely used joint material in various fields, including oil and gas pipelines. For some materials, we have the steel pipes in stock, allowing us to deliver relatively quickly, which has been well received by our customers. <Representative steel grades> API5L-X42(L290), X52(L360), X60(L415), X65(L450), corresponding to PSL1 and PSL2 classes. A860 WPHY42, A860 WPHY52, A860 WPHY60, A860 WPHY65, MSS SP-75 WPHY42, MSS-SP75 WPHY52, MSS-SP75 WPHY60, MSS SP-75 WPHY65.

  • Steel
  • Railway Construction
  • others

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Welded pipe fittings made from clad steel

Welded pipe fittings made from clad steel

Clad steel generates benefits in various cases, such as reducing overall piping costs and accommodating materials that can only be purchased in rare materials or thin sheets.

Clad steel is a composite material that uses carbon steel, high-strength steel, low-alloy steel, etc., as the base material, and combines it with a different type of steel on one side through processes such as hot rolling (bonding), welding, or explosive bonding. It allows for the joining of dissimilar metals, enabling the creation of functions that cannot be achieved with a single metal. By combining materials with good corrosion resistance or by using less expensive metals in larger quantities alongside more expensive ones, it is also possible to reduce the overall cost of piping. This type of steel provides advantages in various cases, such as accommodating rare materials or materials that can only be purchased in thin sheets. *The photo shows a cross-section of clad steel, where the combination of dissimilar metals can be seen.

  • Steel
  • Prefab
  • stone

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