Japanese Standard Four-Way

The Japanese standard four-way is a dedicated pipe fitting for four-way diversion, four-way convergence, and cross-node connection at the core of JIS Japanese-style pressure piping systems. It is specially designed for Japanese-style indust

Japanese Standard Four-Way - Japanese standard four-way fully adapts to global JIS Japanese-standard and Japanese-sty...

Japanese Standard Four-Way

The Japanese standard four-way is a dedicated pipe fitting for four-way diversion, four-way convergence, and cross-node connection at the core of JIS Japanese-style pressure piping systems. It is specially designed for Japanese-style indust

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  • The core advantages of Japanese-standard four-way valves are authentic JIS Japanese-style precision engineering, high-precision tolerances, 100% compatibility with Japanese equipment, strong stability under working conditions, zero acceptan
  • It is the preferred four-way diverter pipe fitting for Japanese-style pipeline networks and equipment worldwide. The product is precision-manufactured strictly in accordance with the Japanese official industrial standards JIS B2312 and JIS
  • Exclusive JIS pipe diameters, Japanese-style wall thickness, and K-class pressure system fully benchmarked against original Japanese factory products
  • No dimensional deviation, no assembly barriers
  • Perfectly compatible with all existing Japanese-style pipeline networks and imported complete sets of equipment. Small and medium diameter seamless hot-pressed one-piece molding
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Detailed Introduction

Japanese standard cross used for cross-node connection in JIS Japanese pressure piping systems, completing the diversion or convergence of four-way media. Products are manufactured according to JIS B2312 butt-welding pipe fittings, JIS B2316 socket-welding pipe fittings, and JIS B2309 threaded pipe fittings standards; dimensional tolerances, grooves, and wall thicknesses follow JIS specifications, adapt to Japanese outer diameter system pipes, and cannot be directly interchanged with national standard or American standard pipe fittings. Connection forms include three types: butt welding, socket welding, and threading; nominal diameters range from DN15 to DN1000; pressure ratings are Japanese K class: 5K, 10K, 16K, 20K, 30K, 40K. Materials include carbon steel SS400, SGP, stainless steel SUS304, SUS316L, alloy steel STPA22, and other Japanese standard grades. In terms of process, small and medium diameters use seamless hot pressing or forging, while large diameters use rolled welding. It can transport water, steam, gas, compressed air, and chemical fluids, and is suitable for new construction, renovation, and old pipeline replacement in Japanese projects. Equal-diameter crosses are used for symmetrical diversion in main pipeline networks, while reducing crosses are used for reducing diversion between main pipes and branch pipes of multiple specifications. Both stock and customization are available; please contact us to confirm specific specifications and quantities.

  • Manufactured according to JIS B2312, JIS B2316, and JIS B2309 standards; Japanese pipe diameters, K-class pressure, Japanese standard materials, and tolerances form an independent complete set, adapting to Japanese existing pipeline networks and imported complete equipment
  • Connection forms cover three types: butt welding, socket welding, and threading; nominal diameters DN15–DN1000; pressure coverage 5K–40K; equal-diameter and reducing structures are complete
  • Materials cover carbon steel SS400, SGP, stainless steel SUS304, SUS316L, alloy steel STPA22, and other Japanese standard grades, selectable according to project media and working conditions
  • Small and medium diameters use seamless hot pressing or forging, large diameters use rolled welding; dimensional tolerances, grooves, and wall thicknesses are implemented according to JIS specifications
  • Supports customization according to Japanese standard drawings, 1:1 replication of Japanese old parts, non-standard diameters, and unconventional reducing ratio customization; sampling cycle is 3–5 days
  • Packaging is designed according to Japanese foreign trade warehousing requirements: small parts are sealed with anti-rust oil paper plus PE film, medium parts use fumigation-free pallets, large-diameter parts use thickened wooden boxes, and outer boxes are marked with JIS standard, K-class pressure, material, specifications, and heat number batch
Product NameJIS Four-Way
Product CategoriesTees & Crosses
The full set of technical parameters of Japanese standard crosses strictly benchmarks against the official Japanese industrial standards JIS B2312 and JIS B2316; the Japanese parameter system is independently precise, precision-engineered, and compliant, adapting to acceptance standards of global Japanese high-end projects. Specification parametersNominal diameter DN15–DN1000, exclusive Japanese pipe diameter and outer diameter system, covering equal-diameter and reducing full structures, seamless, spiral welded, and forged full process specifications are complete, wall thickness follows JIS conventional, thickened, and high-pressure full series grades. Pressure parameters: JIS 5K, 10K, 16K, 20K, 30K, 40K Japanese exclusive pressure grades, covering municipal low pressure to industrial ultra-high pressure full working conditions. Temperature parameters: carbon steel -20℃~450℃, stainless steel -60℃~600℃, suitable for precision manufacturing high-temperature and normal-temperature multiple working conditions. Material parameters: Japanese standard SS400, SGP carbon steel, SUS304, SUS316L stainless steel, STPA22 alloy steel, the entire series of materials complies with Japanese industrial material specifications. Indus
CustomizationThe factory possesses full-dimensional Japanese standard cross JIS system high-end precision customization capabilities, has deeply cultivated the Japanese industrial standard for many years, is proficient in JIS pipe diameter tolerances, K-grade pressure ratings, Japanese standard material specifications, and Japanese precision equipment working condition requirements, and can undertake various Japanese standard non-standard, special-shaped, high-pressure, precision special working condition customized orders worldwide. Size customization can produce any Japanese non-standard diameter from DN15–DN1000 as needed, unconventional JIS reducing ratios, ultra-thick high-pressure precision wall thickness, extended straight pipe section special-shaped crosses, strictly locking JIS precision tolerances, ensuring zero-deviation perfect connection between Japanese pipe networks and imported equipment pipelines. Pressure customization supports precise customization of the full range of Japanese K-grade pressures from 5K to 40K, suitable for civil municipal to industrial ultra-high pressure precision working conditions. Material customization covers
MOQSuitable for the diverse procurement needs of small orders for Japanese foreign trade equipment supporting, overseas warehouse distribution, and large-scale centralized procurement by Japanese EPC, the Japanese standard cross has established a Japanese fine-craft flexible tiered MOQ mechanism, with a low threshold suitable for various global JIS Japanese B2B procurement scenarios. Conventional in-stock standard specifications, including DN15–DN600 mainstream Japanese diameters, 10K/16K conventional pressures, SS
Lead TimeRelying on a dedicated Japanese standard fine-craft production line, full-specification in-stock warehousing, and a foreign trade ultra-fast delivery system, the Japanese standard cross provides Japanese fine-craft controllable, zero-delay tiered delivery services, precisely matching the strict construction period requirements of Japanese and Korean precision engineering and Japanese equipment supporting. DN15–DN600 conventional Japanese standard crosses, carbon steel and stainless steel mainstream 10K/16K Japanese specifications are in sufficient stock, standard order
PackagingThe Japanese standard cross adopts Japanese high-end fine-craft foreign trade dedicated protective packaging, suitable for ocean shipping, multi-leg transit, Southeast Asian high-humidity and high-temperature, coastal salt spray storage and transportation environments, with full-process moisture-proof, rust-proof, collision-proof, and precision-damage-proof protection, meeting the high-end warehousing acceptance standards of Japan and South Korea. Small DN15–DN100 threaded and socket-welded precision Japanese standard crosses, inner layer imported anti-rust oil paper + waterproof PE film double-layer fully sealed wrapping, isolating ocean shipping moisture and salt spray corrosion, preventing oxidation and scratches on precision threads and bevels, outer layer thickened hard cardboard box independently packaged, with built-in customized shock-absorbing foam for all-round isolation protection. Medium DN125–DN300 conventional crosses, using waterproof film + fumigation-free solid wood pallet standardized packing, neatly arranged in layers, strapped and locked to prevent slipping, suitable for overseas warehouse automation
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Applications

  • New construction and old JIS standard pipe network upgrade and renovation of Japanese and Korean local municipal water supply and drainage pipe networks, civil gas transmission, and central heating main pipe networks
  • Process pipeline four-way diversion and confluence in semiconductor, electronics, food and pharmaceutical, and fine chemical plants in Japanese industrial parks in Southeast Asia
  • Cross node connection of Japanese thermal power station thermal steam pipe networks, industrial high-pressure circulation pipelines, and oil and gas auxiliary transmission pipelines
  • In China-Japan joint venture projects and overseas Japanese-system EPC engineering, batch procurement and installation of piping matched with Japanese-system complete equipment
  • For replacement and operation and maintenance procurement of old piping in Japanese factories, corresponding replacement is carried out according to the original JIS pipe diameter, K-grade pressure, and material
  • Cross-border traders conduct mixed-batch procurement of Japanese-standard elbows, tees, flanges, and other pipe fittings

Purchasing & Delivery

Japanese-standard cross fittings are produced according to JIS Japanese-system standards. Before procurement, please provide the required nominal diameter, connection form, pressure grade, material, and quantity. We will assist in verifying the Japanese-system pipe diameter dimensions, K-grade pressure rating, Japanese-standard material grades, and thread specifications, and confirm the in-stock or customized production scheduling plan. For conventional specifications, you may contact us to confirm inventory and delivery time. Packaging is carried out according to Japanese-system foreign trade warehousing requirements: small DN15-DN100 threaded and socket-welded cross fittings use anti-rust oil paper plus PE film sealing, with an outer layer of hard cardboard boxes plus shock-absorbing foam; medium DN125-DN300 use waterproof film plus fumigation-free solid wood pallets; large diameters above DN350 use thickened solid wood closed wooden boxes, with internal slot positioning and corner protection for impact resistance. The outer packaging is affixed with Japanese-English bilingual labels, marking the JIS standard, K-grade pressure, material, specifications, and heat number batch.

Service & Support

Before sale, the Japanese-standard technical team assists with selection, verifying JIS pipe diameter dimensions, K-grade pressure rating, Japanese-standard material grades, and thread specifications, and coordinating with the confirmation of Japanese-system project pipeline network and equipment matching drawing plans. During sale, precision and appearance quality are verified according to JIS standards, supporting overseas customers in factory supervision and online inspection, with the entire order traceable and cross-border logistics trajectories synchronized in real time. After sale, an 18-month cross-border warranty is provided. During the warranty period, non-human-caused precision defects, process flaws, and material problems are eligible for free return, replacement, and reshipment, and cross-border logistics losses are borne. Japanese-standard pipeline technical support is provided, with online Q&A for JIS pipe fitting welding, equipment assembly, and Japanese-system acceptance specifications.

FAQ

Can Japanese-standard cross fittings be used in Japanese and global Japanese-system projects?

Products are produced according to JIS B2312, JIS B2316, and JIS B2309 Japanese Industrial Standards. Japanese-system pipe diameters, K-grade pressure, materials, and tolerances are implemented according to JIS specifications, and they can be used in pipeline systems of Japanese-system engineering projects in Japan, South Korea, Southeast Asia, and other regions. For the acceptance requirements of specific projects, please contact us to confirm.

Can Japanese-standard K-grade pressure be used interchangeably with national-standard PN and American-standard Class?

Japanese standards adopt an independent K-class pressure system; the pipe diameter outer diameter and tolerances differ from metric and American standards, and Japanese standard cross fittings cannot be directly interchanged with national standard or American standard pipe fittings. For Japanese projects, it is recommended to use pipe fittings corresponding to JIS standards; before mixing, please contact us to confirm interface compatibility.

Do you support small-batch trial orders and mixed batches?

We support small-batch trial orders, and they can be purchased in mixed batches together with Japanese standard elbows, tees, flanges, and other pipe fittings. For the specific minimum order quantity and mixed-batch combinations, please contact us to confirm.

What information is required to customize a cross fitting?

Please provide the nominal diameter, connection type, pressure rating, material, reducing ratio, or drawings. If there is an old part, you may provide the physical item or dimensions for 1:1 replication. The sampling cycle is 3–5 days, and mass production is carried out according to JIS tolerances. For the specific plan, please contact us to confirm.

What media and temperatures are Japanese standard cross fittings suitable for?

They can transport water, steam, gas, compressed air, and chemical fluids. Carbon steel material is suitable for temperatures from -20℃ to 450℃, and stainless steel material is suitable for -60℃ to 600℃. For the selection of material and pressure rating for specific working conditions, please contact us to confirm.

How are delivery time and warranty arranged?

For standard specifications, please contact us to confirm stock and delivery time; customized products are confirmed according to the production schedule. Products come with an 18-month cross-border warranty. During the warranty period, non-human-caused accuracy defects, workmanship flaws, and material problems are eligible for free return, exchange, or replacement, and we bear the cross-border logistics losses.

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