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Fittings×吉年 - List of Manufacturers, Suppliers, Companies and Products

Fittings Product List

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Five-way Joint 'Jellyfish-kun'

Five-way Joint 'Jellyfish-kun'

Sprinkler hose deployment piping! Fire protection fittings compatible with various designs and construction methods!

"Jellyfish-kun" is a five-way fitting for sprinkler piping. It allows for easy installation of additional sprinkler heads without draining water, in conjunction with expansions, renovations, or changes in use for stores, office buildings, etc. Additionally, it reduces piping space and significantly decreases on-site construction, thereby minimizing the causes of water leaks. 【Features】 - Easy installation of additional sprinkler heads without draining water for expansions, renovations, or changes in use for stores, office buildings, etc. - By piping the five-way fitting upwards, it prepares for future sprinkler head additions, and by piping downwards, it allows for three sprinkler heads to be connected to one five-way fitting. - The material of the five-way fitting is all ductile iron (FCD450). - It reduces piping space and significantly decreases on-site construction, thereby minimizing the causes of water leaks. - A fire protection fitting that can accommodate various designs and construction methods. *For more details, please download the PDF or feel free to contact us.

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Stainless steel threaded pipe fitting

Stainless steel threaded pipe fitting

High dimensional accuracy and stable quality with uniform internal structure are maintained. It is based on JIS standards.

At Yoshinen, we handle "stainless steel threaded pipe fittings." By adopting the lost-wax manufacturing method (precision casting) and heat treatment, we maintain high dimensional accuracy and stable quality with uniform internal structure. Additionally, the casting surface is more beautiful compared to traditional manufacturing methods (shell casting), and size markings are clearer. The material used is stainless steel, which has excellent corrosion resistance, and it complies with JIS standards. 【Features】 ■ Lost-wax manufacturing ■ RoHS directive compliant ■ For general stainless steel piping *For more details, please refer to the PDF document or feel free to contact us.

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Welded saddle joint "YWS-S/YWS-W"

Welded saddle joint "YWS-S/YWS-W"

We offer various types of branch screw-in and branch welding! Contributing to improved work efficiency.

The "YWS-S/YWS-W" is a welded saddle joint that enables cost reduction through the simplification of the work process. Positioning protrusions (stoppers) are arranged in four locations to minimize misalignment angles and enhance ease of handling. There are two types of branch extraction: screw type and welded type. Additionally, we manufacture white products with zinc plating and black products without surface treatment. 【Features】 ■ Certified product by the Japan Fire Equipment Safety Center, PJ-129 ■ Pursuit of ease of handling ■ The surface treatment of white products is environmentally plated (RoHS compliant) ■ Removal of zinc plating from the welded parts to suppress the generation of harmful zinc gas *For more details, please refer to the PDF document or feel free to contact us.

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Steel pipe fittings

Steel pipe fittings

We offer products made from SW steel pipes, which have excellent resistance to groove corrosion, and are processed domestically.

At Yoshinen, we handle "steel pipe fittings." We use SW steel pipes from Nippon Steel & Sumitomo Metal Corporation, which excel in resistance to groove corrosion, and offer "Yamaichi steel pipe nipples (black, white, coated)" processed domestically, as well as "iron sockets (black, white)" and "VA, VB, VD steel pipe nipples." You can choose according to your needs. 【Product Lineup】 ■ Yamaichi steel pipe nipples (black, white, coated) ■ Iron sockets (black, white) ■ VA, VB, VD steel pipe nipples ■ Other nipples *For more details, please refer to the PDF document or feel free to contact us.

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Screw-in ductile cast iron pipe fitting

Screw-in ductile cast iron pipe fitting

We have a wide variety of banded elbows, different diameter tees, and five-way fittings available.

In Yoshinen, we handle "screw-type ductile cast iron pipe fittings." This product is suitable for fluids such as water, oil, steam, air, and gas. The standard corresponds to JIS B 2301. We offer "elbows," as well as "tees, crosses," and "sockets." For more details, please contact us. 【Specifications】 ■Standard: Corresponds to JIS B 2301 ■Material: Black heart ductile cast iron ■Thread: Pipe taper thread ■Surface treatment for white goods: Hot-dip galvanized *For more details, please refer to the PDF document or feel free to contact us.

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20K threaded joint / outer surface coated 20K threaded joint

20K threaded joint / outer surface coated 20K threaded joint

Introducing products with pressure resistance, strength, and heat resistance! They can be used for pressure piping.

At Yoshinen, we handle "20K threaded joints / external coated 20K threaded joints." Due to the revision of the Fire Service Act in May 1990, it has become mandatory to use pipes of Schedule 40 or higher from JIS G 3454 (STPG) when the design pressure of the piping for connected water supply systems exceeds 0.98 MPa (10 kgf/cm²). Our products have performance equivalent to or greater than Schedule 40 pipes and can be used for these pressure piping applications. 【Features】 ■ Certified by the Japan Fire Safety Center ■ Performance equivalent to or greater than Schedule 40 pipes (pressure resistance, strength, heat resistance) *For more details, please refer to the PDF materials or feel free to contact us.

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