Diagonal Cross
The 45-degree lateral four-way fitting is a dedicated pipeline fitting for 45° low-resistance diversion and confluence. It differs from the conventional 90° vertical four-way fitting in that the branch pipe diverges at a 45° angle, greatly reducing fluid impact, eddy currents, pressure drop, and pipe wall erosion and wear. It is mainly used in industrial pipeline networks that require smooth diversion, erosion prevention, slag accumulation prevention, noise reduction, and drag reduction, and can achieve four-way medium interconnection, transportation, and branch distribution. There is no need to additionally install elbows to adjust the flow direction; a single fitting optimizes the pipeline angle, simplifying pipeline layout and reducing the number of welds and potential leak points. It is widely suitable for slurry, sewage, impurity-containing media, circulating water, and low-pressure steam transportation systems, effectively solving the engineering pain points of severe erosion, easy wear, easy blockage, and large pressure loss in right-angle four-way fittings, improving the operating stability and service life of the pipeline system.
Inquiry
- The biggest core advantage of the diagonal cross is 45° diagonal diversion, low flow resistance, low scouring, and zero slag accumulation.
- Significantly lower fluid resistance than 90° straight cross
- Less pressure loss
- The degree of pipe wall wear is significantly reduced. Integrated hot-press forging forming.
- No welded seams
Detailed Introduction
A 45° lateral four-way (45° lateral cross) is a four-way pipe fitting in which two branch pipes branch off from the main pipe at a 45° oblique angle, distinct from the conventional four-way with 90° perpendicular intersection; the mainstream type is a symmetrical double-45° lateral branch structure, divided into two major categories: equal-diameter lateral four-way and reducing lateral four-way, mainly in butt-welded steel industrial versions, with socket, threaded, and grooved water supply and drainage versions also available. Applicable standards: ASME B16.9, GB/T12459, GB/T13401, SH/T3408; nominal diameter DN15-DN1200; wall thickness SCH10-SCH160, XXS thickened. The 45° oblique transition can greatly reduce fluid impact, eddy currents, and scouring wear, with smaller pressure drop, and is not prone to slag accumulation and deposition, making it very suitable for drainage, slurry, and erosion-prone process pipelines. Forming processes include hot-press pushing, hydraulic bulging, forging and machining, and large-plate welding. It is mostly used in municipal drainage, chemical slurry, HVAC circulation, and flexible routing in plant areas, and belongs to the noise-reducing and wear-reducing special-purpose four-way pipe fitting.
- 45° oblique flow-diversion design, low fluid resistance, low pressure drop loss, effectively reducing eddy currents and scouring wear.
- One-piece forming process (hot pressing, hydraulic bulging, forging), no spliced welds, uniform wall thickness, dense structure, pressure-resistant and impact-resistant.
- Smooth streamlined inner cavity, smooth medium passage, no dead corners, not prone to slag accumulation and blockage, suitable for media containing impurities.
- Supports multiple connection methods such as equal-diameter/reducing, butt welding/socket/threaded/grooved, nominal diameter DN15-DN1200, wall thickness SCH10-SCH160 and XXS thickened.
- Non-standard angles, reducing ratios, special materials, and surface treatments can be customized on demand to meet different working condition requirements.
- Standardized packaging for foreign trade export, supports mixed batches and small orders, flexible delivery times, and provides long-term warranty and after-sales service.
| Product Name | Diagonal Cross |
| Product Category | Contact Us to Confirm |
| Execution Standard | ASME B16.9, GB/T12459, GB/T13401, SH/T3408; nominal diameter: DN15-DN1200 full range; wall thickness grades: SCH10-SCH160, XXS ultra-high-pressure thickened; structural angle: standard 45° lateral oblique angle; structural types: equal-diameter lateral four-way, reducing lateral four-way; connection methods: butt weld BW, socket weld SW, threaded TH, grooved connection; forming processes: hot-press forming, hydraulic bulging, integral forging, 100% non-destructive testing; working temperature: carbon steel -20℃~425℃, stainless steel -196℃~600℃; suitable media: circulating water, sewage, slurry, ore pulp, low-pressure steam, ordinary chemical fluids. All angles, wall |
| Customization | Our factory possesses full-dimensional non-standard customization capabilities for lateral four-way fittings, and can customize non-standard oblique angles, arbitrary reducing ratios, extra-large diameters, and ultra-high-pressure thickened and reinforced structures. We support special streamlined inner cavity polishing, low-resistance optimization processes, and high-strength thickened explosion-proof structural customization, suitable for harsh working conditions with high erosion and large flow. We can perform sandblasting and rust removal, blackening, hot-dip galvanizing, epoxy anti-corrosion, and acid- and alkali-resistant coating surface treatments. We can reverse-customize exclusive lateral four-way pipe fittings according to customers' on-site drawings, old equipment dimensions, and special pipeline parameters. We support laser marking, batch coding, and LOGO OEM customization, and can produce low-temperature steel, duplex steel, and nickel-based alloy high-end materials, suitable for various high-end industrial and municipal non-standard pipeline supporting needs. |
| MOQ | Our factory's lateral four-way fittings adopt a flexible and relaxed foreign trade minimum order model. For conventional 45° equal-diameter and reducing popular specifications, the MOQ is as low as 1 piece, which can meet the needs of sample testing, engineering replacement parts, pipeline network renovation and maintenance, and small trial orders. Commonly used carbon steel and stainless steel conventional-diameter lateral four-way fittings on the market support scattered purchasing, mixed batches of multiple specifications, and combined order shipments, with no mandatory minimum order threshold. Large-volume full-container procurement has no upper |
| Lead Time | Conventional national standard and American standard 45° lateral four-way fittings are kept in regular stock. Popular commonly used specifications can be shipped extremely quickly within 24 hours, quickly responding to urgent engineering orders, pipeline network emergency repairs, and renovation replacement order needs. Standard batch orders for conventional angles and conventional ratios have a production lead time of 3-7 working days, with stable production capacity and punctual and efficient shipment. Non-standard reducing ratio, thickened and reinforced, and finely adjusted angle orders have a lead time of 7-10 |
| Packaging | Our factory's lateral four-way fittings adopt standardized multi-layer protective packaging for foreign trade export, with special protection for oblique-angle irregular structures to prevent pipe-end collisions, angle deformation, and foreign matter entering the inner cavity. All ports are equipped with sealed dust-proof plugs to prevent debris from remaining in the pipe and pipe-end deformation damage. The product surface is sprayed with anti-rust oil for anti-corrosion treatment, and each piece is individually wrapped and isolated with thickened bubble film to avoid friction scratches and oxidation rust during transportation. Conventional specifications are classified and packed into reinforced export cartons. Large-diameter and large-volume orders are packed using fumigated solid wood pallets, reinforced overall with steel straps, stable and resistant to loosening, suitable for long-distance ocean shipping. The outer packaging clearly marks angle, specification, wall thickness, material, standard, batch, and export shipping marks. We support neutral packaging, LOGO OEM, and exclusive shipping mark customization, complying with export commodity inspection and overseas |
| Reference Price | Inquiry |
Applications
- Municipal rainwater drainage and sewage treatment transmission pipelines, used for diversion and confluence nodes, reducing sedimentation and erosion.
- Chemical particle-containing slurry and ore slurry transmission pipelines, replacing 90° four-way fittings, reducing wear and blockage risks.
- HVAC circulating water systems and factory sewage pipeline networks, achieving low-resistance distribution, reducing energy consumption and noise.
- Large building water supply and drainage projects, used for pipeline branching, simplifying layout, and reducing welds and leakage points.
- Renovation of old pipeline networks, repair and replacement parts, can be purchased as single pieces, quickly replace straight four-way, improve system stability.
Overview
The lateral four-way is a four-way pipe fitting with a 45° oblique diversion. Compared with the conventional 90° vertical four-way, its branch pipe branches off from the main pipe at a 45° angle, which can significantly reduce fluid impact, eddy currents and erosion wear, and reduce pressure drop and slag accumulation risks. The product implements domestic and international standards such as ASME B16.9 and GB/T12459. The nominal diameter covers DN15-DN1200, and the wall thickness covers SCH10-SCH160 and XXS thickened. It is suitable for industrial pipeline networks such as municipal drainage, chemical slurry, and HVAC circulation. We provide equal diameter, reducing diameter and various connection methods, and support non-standard customization to meet different engineering needs.
Key Features
The core advantage of the lateral four-way lies in its 45° oblique diversion design. Compared with the 90° straight four-way, fluid resistance is greatly reduced, pressure loss is smaller, and the degree of pipe wall wear is significantly reduced. The product adopts integrated hot pressing or forging molding technology, with no splicing welds, uniform wall thickness, and dense structure. It is pressure-resistant and impact-resistant, and not easy to crack or deform. The inner cavity has a smooth streamlined transition, the medium passes smoothly, and there is no dead corner accumulation, making it especially suitable for media containing impurities and prone to deposition. In addition, we support a variety of materials (carbon steel, stainless steel, alloy steel) and connection methods, and provide non-standard customization services to ensure the product fits the actual working conditions.
Applications
The lateral four-way is widely used in industrial pipeline networks that require stable diversion, erosion prevention, slag accumulation prevention, noise reduction and resistance reduction. Typical scenarios include: municipal rainwater drainage and sewage treatment transmission pipelines, reducing deposition and erosion; chemical particle-containing slurry and ore slurry transmission pipelines, reducing wear and blockage risks; HVAC circulating water systems and factory sewage pipeline networks, achieving low-resistance distribution; large building water supply and drainage projects, simplifying pipeline layout and reducing welds and leakage points. In addition, it is also suitable for renovation of old pipeline networks and repair and replacement parts, can be purchased as single pieces, and can quickly replace straight four-way to improve system stability.
Specifications
The product implementation standards include ASME B16.9, GB/T12459, GB/T13401, and SH/T3408. The nominal diameter range is DN15-DN1200, and the wall thickness grade covers SCH10-SCH160 and XXS thickened. Structural types are divided into equal-diameter lateral four-way and reducing lateral four-way. Connection methods include butt welding (BW), socket welding (SW), thread (TH) and groove. Molding processes include hot pressing, hydraulic bulging, integral forging and large-diameter plate welding. Materials can be selected from carbon steel (A234 WPB, 20#, 16Mn), stainless steel (304/304L/316/316L/321) and alloy steel (F11/F22), etc. Working temperature range: carbon steel -20℃~425℃, stainless steel -196℃~600℃. Applicable media include circulating water, sewage, slurry, ore slurry, low-pressure steam and ordinary chemical fluids. Specific parameters can be confirmed according to project requirements. You are welcome to contact us for detailed specifications.
Procurement & Delivery
We provide flexible foreign trade minimum order models. The MOQ for conventional popular specifications is as low as 1 piece, supporting sample testing, engineering replacement parts and small-order trial orders. Common carbon steel and stainless steel conventional calibers support scattered purchases and mixed batches of multiple specifications, with no mandatory minimum order threshold. There is no upper limit for large-volume full-container procurement, and negotiations are welcome. Conventional standard lateral four-ways are in stock, and popular specifications are shipped within 24 hours; standard batch orders have a delivery time of 3-7 working days; non-standard customized orders have a delivery time of 7-10 working days, depending on complexity. Packaging adopts standardized multi-layer protection for foreign trade export. All ports are equipped with sealed dust-proof plugs, the surface is sprayed with anti-rust oil, and each piece is individually wrapped in bubble film. Large-diameter and large-volume orders are packed using fumigated solid wood pallets, reinforced with steel straps, suitable for ocean shipping. Support neutral packaging, LOGO private labeling and exclusive shipping mark customization.
Service & Support
We provide one-stop foreign trade-level after-sales service. All lateral four-ways undergo triple quality inspection before leaving the factory: angle verification, dimension inspection and non-destructive testing, ensuring the product is qualified. After receipt, if there are quality defects, wrong specifications, inconsistent angles or transportation damage, we support free replacement, return or exchange, or re-production, and bear the corresponding logistics losses. We provide free low-resistance pipeline selection guidance, diversion installation plans, technical Q&A and a full set of dimensional drawings. Support long-term customer inventory custody, partial shipment and on-demand replenishment services. The product enjoys long-term warranty under normal working conditions. For non-human damage, full after-sales rights protection is available, with lifetime order follow-up service, ensuring the stable operation of your project.
FAQ
What is the difference between a lateral four-way and an ordinary four-way?
The lateral four-way uses 45° diagonal diversion, with low fluid resistance, low scouring, and is not prone to slag accumulation; the ordinary four-way uses 90° vertical diversion, with large pressure drop and is prone to wear and blockage. Therefore, the lateral four-way is more suitable for pipeline systems containing impurities, high flow rates, or requiring low resistance.
What media is the lateral four-way suitable for conveying?
The lateral four-way is particularly suitable for media such as sewage, slurry, fluids containing particulate impurities, and large-flow circulating fluids. It can effectively reduce deposition and scouring, and is also suitable for low-pressure steam and ordinary chemical fluids. For specific working conditions, please contact us to confirm the material and wall thickness selection.
Do you support non-standard angle customization?
Yes. We can customize any diagonal angle, special reducing ratio, thickened structure, etc. according to your drawings or requirements. You are welcome to provide detailed parameters or samples, and we will assist in confirming feasibility and delivery time.
Can the lateral four-way be used in high-pressure pipelines?
Yes. We provide SCH160 and XXS thickened forged versions, suitable for high-temperature and high-pressure working conditions. For specific pressure ratings and material selection, please contact us, and we will recommend suitable products according to your working conditions.
Can you provide export certificates?
We can provide material certificates (3.1/3.2) and other routine documents. Please contact us before placing an order to confirm the specific certification requirements, so that we can assist in preparing the relevant qualifications.
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