Cast tees belong to cast-formed branching and merging pipe fittings, and differ from pressed tees, forged tees, and rolled welded tees in their forming processes. We use integral one-time casting, so the pipe fitting has no spliced welds, the wall thickness is relatively uniform, and the structure is thick and solid, making it suitable for medium- and low-pressure, large-flow, outdoor buried, and rapidly installed pipeline systems. The products follow general cast pipe fitting standards such as GB/T12459, GB/T13295, ASME, ISO, and EN545, with diameters covering DN25–DN2000. The materials are mainly ductile iron QT450-10 and gray iron HT200/HT250, and cast steel or stainless steel cast materials can also be customized according to project requirements. The connection ports can be made in groove, flange, socket, and threaded forms, corresponding respectively to different scenarios such as fire and explosion-proof quick installation, permanent main pipeline networks, long-distance water transmission, and HVAC instrument piping. Before purchasing, it is recommended to confirm the medium, diameter, connection method, material, and anti-corrosion requirements; we will assist in matching the configuration and providing a quotation.
Overview
Cast tee is a pipeline diversion and confluence pipe fitting produced by us using resin sand casting, coated sand precision casting, or integral one-time casting molding process. It differs from pressed tee, forged tee, and rolled welded tee in the forming method. The pipe fitting has no spliced welds overall, uniform wall thickness, and a thick and solid structure, suitable for medium and low pressure, large flow, outdoor buried, and pipeline systems requiring rapid installation. The product follows general cast pipe fitting standards such as GB/T12459, GB/T13295, ASME, ISO, EN545, etc., with diameters covering DN25–DN2000. Commonly used materials are ductile iron QT450-10 and gray iron HT200/HT250, and cast steel or stainless steel cast materials can also be customized according to project requirements. Ports can be made in grooved, flanged, socket, threaded, and other forms, respectively corresponding to different scenarios such as fire and explosion-proof quick installation, permanent main pipeline networks, long-distance water transmission, and HVAC instrument pipelines.
Key Features
The core advantage of cast tee comes from integral casting molding. The pipe fitting has no spliced welds and uniform wall thickness, can withstand outdoor heavy pressure, foundation settlement, and external impact, reducing the risk of pipeline network deformation and cracking. Ductile iron QT450-10 has good toughness and is not prone to brittle fracture, suitable for municipal engineering; gray iron HT200/HT250 has strong rigidity, wear resistance, and erosion resistance, suitable for ordinary water supply and drainage pipeline networks. Connection methods are flexible: grooved type requires no hot work welding, and clamps lock quickly, suitable for fire and explosion-proof and rapid renovation of old pipeline networks; flanged type has strong sealing performance and can be disassembled for maintenance, suitable for permanent main buried pipeline networks; socket type has good anti-seepage performance, suitable for long-distance water transmission; threaded type is suitable for small-diameter HVAC instrument pipelines. We can also perform hot-dip galvanizing, epoxy spray coating, asphalt anti-corrosion, and other treatments according to project requirements.
Applications
Cast tee is mainly used for medium and low pressure, large flow, outdoor buried, and explosion-proof quick-installation pipeline systems. In municipal water conservancy, it is suitable for urban main and secondary road water supply and drainage buried pipeline networks, township centralized water supply, farmland water conservancy irrigation, and long-distance water transmission projects. In fire and explosion-proof applications, it is suitable for building fire sprinkler pipeline networks, park fire main pipelines, and quick-installation pipeline networks in flammable and explosive areas, with grooved type requiring no hot work welding. In HVAC and gas applications, it is suitable for urban central heating pipelines, civil gas low-pressure transmission, and factory HVAC circulation pipelines. In environmental protection and sewage applications, it is suitable for process pipeline networks of small and medium-sized sewage treatment plants, factory sewage discharge, and rainwater collection and transmission pipelines. In general industrial applications, it is suitable for park water supply and drainage, factory ventilation and water transmission, and small process diversion pipeline networks. It should be noted that the product is not suitable for high-temperature and high-pressure industrial process pipeline networks.
Specifications
Cast tee diameters cover DN25–DN2000, commonly used materials are ductile iron QT450-10 and gray iron HT200/HT250, and cast steel and stainless steel cast materials can be customized. Connection ports include grooved, flanged, socket, threaded, and other forms. Implementation standards include GB/T12459, GB/T13295, ASME, ISO, EN545. For DN25–DN300 conventional grooved and flanged standard stock specifications, MOQ is as low as 5 pieces, and quality inspection and protective packaging are completed within 24–48 hours after order confirmation. Non-standard diameters, special wall thicknesses, special branch angles, special-shaped eccentric diversion structures, etc. can be customized according to project requirements. For specific specifications, materials, connection methods, and anti-corrosion requirements, please contact us for confirmation.
Purchasing & Delivery
We set tiered minimum order rules to adapt to different needs such as sample submission for inspection, engineering supplementary parts, bulk centralized procurement, and foreign trade distribution. For DN25–DN300 conventional grooved and flanged standard stock specifications, MOQ is as low as 5 pieces. For DN25–DN300 conventional grooved, flanged, and threaded standard stock styles, quality inspection, anti-corrosion re-inspection, and protective packaging are completed within 24–48 hours after order confirmation. For delivery times of other specifications and customized orders, please contact us for confirmation. In terms of packaging, small threaded and grooved styles are equipped with plastic thread protection caps and anti-collision protection rings; small and medium specifications are coated with anti-rust oil, wrapped in waterproof oil paper and pearl cotton, then packed into thickened cartons with built-in desiccant; for medium and large diameter flanged and socket styles, ports are covered with waterproof protective film, and flange surfaces are equipped with protective backing plates; large pieces are externally wrapped with multiple layers of waterproof woven cloth and stretch film. For full-container foreign trade shipments, they are uniformly stacked on solid wood pallets and fastened with steel straps, and English shipping marks, specification labels, customer LOGO, and batch numbers can be customized.
Service & Support
We provide pre-sales, in-sales, and after-sales support for infrastructure engineering and foreign trade customers purchasing cast tee. The pre-sales technical team can assist with working condition selection, material matching, connection method adaptation, and anti-corrosion grade matching. Products undergo full appearance inspection, dimension re-measurement, material verification, anti-corrosion coating testing, and pressure-bearing adaptation verification before leaving the factory. For any quality defects in factory casting, processing, or anti-corrosion, free returns and exchanges and free replacements are supported. After-sales provides answers to questions on pipeline network installation, anti-corrosion maintenance, and daily operation and maintenance, and tracks logistics throughout the process, assisting overseas customers with customs clearance. The product warranty period is 18 months, and 7×24-hour after-sales response is provided. For specific service terms and project cooperation methods, welcome to contact us for confirmation.
FAQ
What working conditions are cast tee suitable for?
Cast tee fittings are mainly aimed at medium- and low-pressure, large-flow civil pipeline networks, and are suitable for municipal water supply and drainage, fire protection, HVAC, water conservancy, and sewage engineering. They are formed by integral casting, with no spliced welds, and are suitable for outdoor buried and foundation settlement working conditions. It should be noted that the product is not suitable for high-temperature and high-pressure industrial process pipelines. Please contact us to confirm whether the specific working conditions match.
How to choose between ductile iron and gray cast iron materials?
Ductile iron QT450-10 has good toughness, resists settlement, and is not prone to brittle fracture, making it the mainstream material for municipal engineering; gray cast iron HT200/HT250 is cost-effective, has strong rigidity, and is wear-resistant and erosion-resistant, making it suitable for ordinary water supply and drainage and agricultural pipeline networks. If the medium has slight corrosion, custom cast steel or stainless steel casting materials can be considered. When selecting, please provide the medium, diameter, and usage environment, and we will assist in confirming.
How to choose among grooved, flanged, socket, and threaded connection methods?
For fire protection, explosion-proof, and rapid renovation scenarios, grooved type is recommended, with no need for hot work welding, and the clamp locks quickly; for permanent main buried pipeline networks, flanged type is recommended, with strong sealing performance and detachable maintenance; for long-distance water transmission projects, socket type is recommended, with relatively good seepage resistance; for small-diameter HVAC instrument pipelines, threaded type is recommended. Please contact us to confirm the specific selection.
What are the minimum order quantity and delivery time for cast tee fittings?
For DN25–DN300 conventional grooved and flanged standard in-stock specifications, the MOQ is as low as 5 pieces, supporting local pipeline network renovation, project replacement parts, and foreign trade sample certification. For DN25–DN300 conventional grooved, flanged, and threaded standard in-stock styles, quality inspection, anti-corrosion re-inspection, and protective packaging will be completed within 24–48 hours after order confirmation. For the minimum order quantity and delivery time of other specifications and custom orders, please contact us to confirm.
Can non-standard diameters or special materials be customized?
Yes. We support customization of any non-standard diameter from DN25 to DN2000, non-standard wall thickness, special branch angles, and irregular eccentric flow-diversion structures. We can also customize materials such as ductile iron, gray iron, cast steel, and stainless steel, as well as anti-corrosion treatments such as hot-dip galvanizing, epoxy powder coating, and asphalt anti-corrosion. Please provide drawings, samples, or a technical agreement, and we will assist in confirming the solution and providing a quotation.
