Equal-diameter cross
Equal-diameter cross fittings are mainly used for four-way uniform distribution, merging, and ring-shaped pipeline distribution in pipeline systems. The diameters of the four ports are consistent, enabling four-way equal-volume interconnected conveyance of the medium. They can evenly divide a single-path medium into three outputs, and can also achieve the merging and integration of multiple-path media, adapting to symmetrical pipeline network layouts. They can replace multiple groups of tee-joint assembled structures, effectively simplifying complex pipeline layouts, reducing weld joints and leakage hazards, and improving the overall stability of the pipeline system. They are widely used in steam, oil and gas, gas, process water, and corrosive chemical fluid conveyance systems, and are suitable for evenly divided connection of equipment interfaces, ring-shaped pressure-stabilizing pipeline networks, and multi-path parallel pipeline systems. They are standardized core supporting pipe fittings in industrial pipeline symmetrical distribution engineering.
Inquiry
- The greatest advantages of the equal-diameter cross fitting are four-way equal diameter, evenly distributed flow, one-piece forming, and balanced resistance
- Fully symmetrical four-way bore
- The medium is diverted without deviation, and pressure distribution is uniform
- It eliminates the problems of biased flow and slag accumulation in pipelines. Overall hot-pressed or forged forming
- No welded seams
Detailed Introduction
An equal tee is a cross-shaped pressure-bearing pipeline fitting in which the nominal diameters of all four pipe openings are completely identical, with all four pipe diameters being the same, allowing the medium to achieve four-way splitting, converging, and annular distribution. The mainstream forming processes include hot pushing, hydraulic bulging, and integral forging, and the main applicable standards are ASME B16.9, GB/T12459, and SH/T3408. The product's diameter range is DN15 to DN1200, and the wall thickness covers SCH10 to SCH160 as well as XXS thickened grades. It is integrally formed as a single piece, with a smooth streamlined inner cavity, balanced pressure distribution, and low eddy current resistance, making it suitable for symmetrical process pipe networks and annular pressure-stabilizing pipelines. Unlike reducing tees, equal tees cannot change the pipe diameter, and are mostly used for multi-channel even distribution transport in plant areas, circulating pipe networks, and parallel pipelines. The product is widely used in high-pressure industrial pipeline systems such as petrochemicals, thermal power, natural gas, water treatment, and heating. Due to stress concentration at the intersection, non-destructive testing must be carried out before leaving the factory to ensure safe operation under high-pressure working conditions.
- Four-way equal diameter, evenly distributed flow, no bias flow dead corners
- Integrally formed, no spliced welds, high structural strength
- Smooth inner cavity, low fluid resistance, high transport efficiency
- Supports standards such as ASME, GB, SH, etc., diameter DN15-DN1200
- Wall thickness SCH10-SCH160 and XXS thickening, suitable for high-pressure working conditions
- Supports non-standard customization, including material, dimensions, and surface treatment
| Product Name | Equal Tee |
| Product Category | Contact Us to Confirm |
| Executive Standard | ASME B16.9, GB/T12459, GB/T13401, SH/T3408; nominal diameter: DN15-DN1200 (NPS1/2″-48″); wall thickness grade: SCH10-SCH160, XXS ultra-high-pressure thickening; structural form: four-way equal-diameter symmetrical structure; connection method: butt welding, socket welding, threaded, grooved, press fitting; forming process: hot pressing, hydraulic bulging, integral forging, non-destructive testing; working temperature: carbon steel -20℃~425℃, stainless steel -196℃~600℃; compatible media: steam, oil and gas, fuel gas, water, acid-base chemical corrosive fluids. All dimensions, curvature, and wall thickness strictly benchmark against international standards, with precise and controllable tolerances, and can provide |
| Customization | Our factory possesses full-dimensional non-standard customization capabilities for equal-diameter crosses, and can customize equal-diameter crosses with extra-large diameters, ultra-high-pressure thickened walls, special wall thicknesses, and reinforced high-strength construction. We support customization of inner cavity polishing, low-flow-resistance precision structures, and special curvature forming processes, suitable for high-end clean and high-precision transportation working conditions. We can perform sandblasting and rust removal, blackening, hot-dip galvanizing, epoxy anti-corrosion, and acid- and alkali-resistant special coating surface treatments. We can reverse-customize exclusive specifications according to customer drawings, old equipment dimensions, and special pipeline parameters. We support laser marking, LOGO engraving, batch coding, and exclusive OEM packaging customization. We can produce high-precision material products such as low-temperature steel, duplex steel, and nickel-based alloys, suitable for the supporting needs of high-end chemical, power, and special equipment pipelines at home and abroad. |
| MOQ | Our factory's equal-diameter crosses adopt a flexible and loose foreign trade minimum order model. The MOQ for conventional standard in-stock specifications is as low as 1 piece, which can meet the needs of sample testing, engineering replacement parts, equipment repair and replacement, and small trial orders. Commonly used carbon steel and stainless steel equal-diameter crosses with conventional diameters and conventional wall thicknesses on the market support scattered purchasing, mixed batches of multiple specifications, and combined shipment, with no mandatory minimum order threshold. Large-volume full-container procurement has no |
| Lead Time | Conventional national standard and American standard general-purpose equal-diameter crosses have massive standing stock. Hot-selling diameter and wall thickness specifications are shipped extremely quickly within 24 hours, quickly responding to customers' urgent orders, replenishment orders, and engineering emergency repair needs. The production lead time for standard batch conventional orders is 3-7 working days, with stable production capacity and punctual and efficient shipment. The lead time for ordinary non-standard thickened, slightly adjusted dimensions, and special process orders is 7-10 working days. Extra-large diam |
| Packaging | Our factory's equal-diameter crosses adopt standardized protective packaging for foreign trade export, with full-process protection against rust, bumps, and pipe-end deformation damage. All ports are equipped with special dust-proof plugs to prevent debris from entering the pipe and pipe-end bump deformation. The product surface is sprayed with anti-rust oil, and each piece is individually wrapped and isolated with bubble film to avoid friction scratches and oxidation rust during transportation. Conventional specifications are classified and packed into thickened export cartons. Large-diameter and large-volume full orders are packed using fumigated solid wood pallets, reinforced and stabilized with steel straps, suitable for long-distance ocean shipping. The outer packaging clearly marks the model, nominal diameter, wall thickness, material, standard, batch, quantity, and export shipping marks. It supports neutral packaging, customer LOGO OEM, and exclusive shipping mark customization, fully complying with export commodity inspection, customs clearance, and overseas warehousing regulatory standards. |
| Reference Price | Inquiry |
Applications
- Symmetric flow splitting and merging in petroleum refining process pipelines
- Ring-type pressure-stabilizing distribution in natural gas transmission networks
- Multi-branch parallel conveyance in thermal power plant steam systems
- Balanced flow distribution in municipal heating circulation pipelines
- Multi-branch even distribution in water treatment and environmental equipment
Product Overview
The equal-diameter cross is a cross-shaped pressure-bearing pipeline fitting with four pipe ends of completely identical nominal diameters, used for four-way diversion, convergence, and annular distribution in pipeline systems. It is manufactured using hot pushing, hydraulic bulging, or integral forging processes, ensuring the product is integrally formed with no spliced welds. The product complies with standards such as ASME B16.9, GB/T12459, and SH/T3408. The diameter range is DN15-DN1200, and the wall thickness covers SCH10-SCH160 and XXS thickened grades. Equal-diameter crosses are suitable for symmetrical pipe networks requiring uniform flow distribution and balanced pressure, such as high-pressure industrial pipeline systems in petrochemicals, power, and natural gas.
Key Selling Points
The core advantages of the equal-diameter cross lie in four-way equal diameter, uniform flow distribution, integral forming, and balanced resistance. The four diameters are completely symmetrical, ensuring no deviation in medium diversion, uniform pressure distribution, and avoiding pipeline bias flow and slag accumulation problems. It is formed by integral hot pressing or forging, with no spliced welds, uniform pipe wall thickness, high structural strength, and excellent pressure resistance, temperature resistance, and vibration resistance. The inner cavity is smooth and streamlined, with low fluid resistance and high transportation efficiency. In addition, the product supports multiple connection methods and surface treatments, and can meet different engineering needs.
Applications
Equal-diameter crosses are suitable for industrial scenarios such as symmetrical pipe networks, uniform diversion, annular pressure stabilization, and multi-path parallel connection. They are suitable for full working condition environments of high and low temperatures and high and low pressures, and are widely used in petroleum refining process pipelines, natural gas transmission pipe networks, thermal power generation steam systems, municipal heating circulation pipelines, fire-fighting high-pressure pipe networks, sewage treatment environmental protection equipment, pharmaceutical clean pipelines, and HVAC circulation systems. They are especially suitable for dense pipelines in plant areas, multi-path distribution pipelines in machine rooms, and annular pressure-stabilizing transmission pipe networks that require uniform flow distribution and balanced pressure distribution.
Specifications
The main specification parameters of equal-diameter crosses include: executive standards ASME B16.9, GB/T12459, GB/T13401, SH/T3408; nominal diameter DN15-DN1200 (NPS1/2"-48"); wall thickness grades SCH10-SCH160, XXS thickened; structural form is a four-way equal-diameter symmetrical structure; connection methods include butt welding, socket welding, threading, grooving, and press fitting; forming processes include hot pressing, hydraulic bulging, and integral forging; working temperature range for carbon steel is -20℃~425℃, and for stainless steel is -196℃~600℃. All dimensions, curvatures, and wall thicknesses strictly benchmark international standards, with precise and controllable tolerances. Specific configurations can be confirmed according to project requirements.
Procurement & Delivery
We offer flexible foreign trade minimum order models. For regular standard in-stock specifications, the MOQ is as low as 1 piece, and we support sample testing, engineering replacement parts, and small trial orders. Equal tees in commonly used carbon steel and stainless steel with regular diameters and wall thicknesses support loose quantity purchasing, mixed batches of multiple specifications, and combined shipment. In-stock specifications can be shipped within 24 hours, standard batch orders have a delivery time of 3-7 working days, and non-standard customized orders have a delivery time of 7-10 working days. Products use standardized protective packaging for foreign trade export to ensure transportation safety. Specific delivery time and packaging can be confirmed according to order requirements.
Service & Support
We provide one-stop foreign trade grade after-sales service. All equal tees undergo triple quality inspection before leaving the factory: appearance screening, dimension verification, and non-destructive testing. If customers encounter quality defects, wrong specification shipment, or transportation damage after receiving the goods, we support free replacement, return or exchange, or re-production. We provide flow distribution selection guidance, pipeline installation solutions, dimension drawings, and technical Q&A. We support long-term customer inventory custody, partial shipment, and on-demand replenishment services. Products enjoy long-term warranty under normal working conditions, and non-human-caused damage is covered by complete after-sales protection.
FAQ
What is the difference between equal tees and reducing tees?
The four ports of an equal tee have the same diameter and are used for even flow distribution; the ports of a reducing tee have different diameters and are used for reducing flow distribution.
Are equal tees suitable for high-pressure pipelines?
Yes. Equal tees use integrated forging or hot-press forming, can be made in SCH160 and XXS thickened grades, and are suitable for ultra-high-pressure working conditions.
How is the flow distribution effect of equal tees?
Due to the symmetrical structure and smooth inner cavity, the flow in all four branches is completely balanced, with no bias flow dead corners.
Do you support mixed batches and samples?
Yes. We accept single-piece samples, mixed batches of multiple specifications, and both large and small orders.
Can you provide export certificates?
We can provide a full set of export qualifications, including 3.1/3.2 material certificates, CE, ISO, etc. Please contact us for confirmation of the specifics.
Submit Inquiry
Please fill in the following information, and we will contact you as soon as possible to provide product solutions or quotes based on your needs.