The FL flange tee is mainly used for medium diversion, confluence, pipeline branching, bypass reservation, and pipe network expansion and renovation in industrial and municipal pipeline systems. It adopts a three-port flanged bolted connect
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Flange tee FL, referred to as FL tee, has all three ports equipped with flanges and relies on bolts and gaskets to achieve detachable connections. It is the core branching pipe fitting in large-diameter detachable pipeline systems. The main body is formed by seamless hot pressing or rolled welding. Both ends are welded with flanges to the branch pipe, forming a three-flange integral structure. The product achieves medium diversion, confluence, bypass, and branch reservation in pipeline systems, and is convenient for disassembly, inspection, and maintenance. Later pipeline disassembly, valve replacement, and equipment maintenance can be performed without cutting the pipeline. The specification range covers DN15 to DN2000, with pressure ratings from PN10 to PN160 and Class150 to Class2500. Flange sealing surfaces include RF, FF, MFM, TG, RTJ, and other forms. Materials include carbon steel A234 WPB, stainless steel 304/316L, alloy steel, and duplex steel. It is divided into two mainstream structures: flange equal tee and flange reducing tee. The main body complies with ASME B16.9 and GB/T12459, while the flanges comply with ASME B16.5 and GB/T9113 standards. It is widely used in petrochemical, power plant thermal, municipal pipe gallery, water treatment, natural gas, marine and shipbuilding industries, and is especially suitable for occasions requiring frequent maintenance, equipment docking, and large-diameter process pipelines.
| Product Name | Flanged Tee FL |
| Category | Contact Us to Confirm |
| Customization Capability | Flange tees support comprehensive non-standard customization services. Special reducing ratios, 45° lateral tees, extended straight pipe sections, and thickened high-pressure pipe wall structures can be customized as required. Supports customization according to multiple national flange standards including Chinese standard, American standard, German standard, Japanese standard, and Russian standard, with arbitrary combination of different sealing surface types. Materials can be customized with carbon steel, stainless steel, alloy steel, duplex steel, low-temperature steel, and other special materials, suitable for high-temperature, high-pressure, and strong corrosion special working conditions. Surface treatment can include sandblasting, hot-dip galvanizing, pickling and passivation, plastic lining or fluoropolymer lining, and anti-corrosion paint treatment. Supports OEM branding, laser marking, steel stamping of model numbers and customer LOGO, and can perform one-to-one precision machining based on drawings, samples, and parameters to meet various personalized engineering requirements. |
| MOQ | Regular standard stock flanged tees support a minimum order quantity of 1 piece, with no procurement threshold, meeting the needs of engineering repairs, project emergency repairs, sample submission for inspection, and foreign trade small-order trial orders. Regular reducing sizes, regular non-standard dimensions, and ordinary anti-corrosion treatment styles require a minimum order quantity of 5 pieces, suitable for small and medium-sized custom engineering projects. Large-diameter DN800 and above, high-pressure and high-class rating, alloy steel, duplex steel, and special plastic-lined anti-corrosion high-end |
| Lead Time | Regular small and medium diameters, normal-pressure standard stock flanged tees have ample inventory, with fast dispatch and delivery within 24-48 hours, meeting the needs of urgent engineering orders, emergency repairs, and urgent replenishment. Ordinary non-standard reducing sizes, special sealing faces, and regular size-modification custom products have a production cycle of 3-7 working days. Large-diameter oversized specifications, high-pressure and high-class rating, special materials, and plastic-lined or fluoroplastic-lined anti-corrosion custom products have a production cycle |
| Packaging | Flanged tees use export-grade, tiered protective packaging, with emphasis on protecting the flange sealing faces and disc surface precision. Small-diameter fittings are individually wrapped in bubble film, and sealing faces are covered with protective cover plates to prevent collision scratches, deformation, and leakage. Medium and large-diameter products are wrapped externally with waterproof and rust-proof film, with desiccant and rust-proof paper placed inside to prevent moisture and rust during sea transport. Batch cargo is reinforced with thickened woven bags, and full-container exports are packed with fumigated or fumigation-free solid wood pallets, strapped securely to prevent compression. Foreign trade English shipping marks, batch identification, and customer LOGO labels can be customized according to customer requirements. Packaging is moisture-proof, shock-proof, and collision-proof, suitable for domestic long-distance land transport, international sea transport, and long-distance ocean shipping, ensuring the disc surface arrives intact and ready for direct installation and use. |
| Reference Price | Inquiry |
| Specification Range | DN15-DN2000 |
Flange tee FL, referred to as FL tee, has all three ports equipped with flanges and relies on bolts and gaskets to achieve detachable connections. It is the core branching pipe fitting in large-diameter detachable pipeline systems. The main body is formed by seamless hot pressing or rolled welding. Both ends are welded with flanges to the branch pipe, forming a three-flange integral structure. The product achieves medium diversion, confluence, bypass, and branch reservation in pipeline systems, and is convenient for disassembly, inspection, and maintenance. Later pipeline disassembly, valve replacement, and equipment maintenance can be performed without cutting the pipeline. The specification range covers DN15 to DN2000, with pressure ratings from PN10 to PN160 and Class150 to Class2500. Flange sealing surfaces include RF, FF, MFM, TG, RTJ, and other forms. Materials include carbon steel A234 WPB, stainless steel 304/316L, alloy steel, and duplex steel. It is divided into two mainstream structures: flange equal tee and flange reducing tee. The main body complies with ASME B16.9 and GB/T12459, while the flanges comply with ASME B16.5 and GB/T9113 standards. It is widely used in petrochemical, power plant thermal, municipal pipe gallery, water treatment, natural gas, marine and shipbuilding industries, and is especially suitable for occasions requiring frequent maintenance, equipment docking, and large-diameter process pipelines.
- Detachable design: Three-port flange bolted connection, no welding required for fixation, disassembly and maintenance without cutting the pipeline, greatly reducing operation and maintenance costs. - Wide specification coverage: DN15-DN2000, pressure PN10-PN160, Class150-Class2500, diverse flange sealing faces, adaptable to various working conditions. - Diverse materials: Carbon steel, stainless steel, alloy steel, duplex steel, etc., meeting the requirements of different media and corrosive environments. - Standards compliance: Body complies with ASME B16.9, GB/T12459, flanges comply with ASME B16.5, GB/T9113, supporting customization to multiple national standards. - Reliable process: Seamless hot-pressed or roll-formed welded construction, large-diameter products undergo flaw detection inspection to ensure structural strength and sealing performance. - Flexible customization: Supports reducing tees, oblique tees, extended pipe sections, non-standard flange standards, surface treatment, and OEM customization.
- Branch nodes of municipal heating pipeline networks: Used for flow diversion in urban heating pipelines, facilitating maintenance and valve replacement. - Petrochemical process pipelines: Enables branch connections on pipelines requiring periodic maintenance, avoiding hot work operations. - Power plant steam or feedwater pipelines: Used for inlet and outlet transitions of equipment, facilitating equipment maintenance and isolation. - Water treatment plant piping systems: Enables branching and bypass on sewage treatment or water supply networks, facilitating capacity expansion and retrofitting. - Foreign trade engineering procurement: International engineering contractors or traders purchase flange tees conforming to American, German, and other standards for overseas projects.
产品名称：法兰三通 FL 产品分类：请联系我们确认 定制能力：法兰三通支持全方位非标定制服务，可按需定制特殊异径配比、45°斜三通、加长直管段、加厚高压管壁结构。支持国标、美标、德标、日标、俄标多国法兰标准定制，可任意搭配不同密封面类型。材质可定制碳钢、不锈钢、合金钢、双相钢、低温钢等特种材质，适配高温、高压、强腐蚀特殊工况。表面可做喷砂、热镀锌、酸洗钝化、衬塑衬氟、防腐漆处理。支持OEM贴牌、激光打标、钢印刻印型号与客户LOGO，可依据图纸、样品、参数一对一精密加工，满足各类个性化工程需求。 起订量：常规标准现货法兰三通支持1件起订，无采购门槛，满足工程补件、项目抢修、样品送检、外贸小单试单需求。常规异径、常规非标尺寸、普通防腐处理款式，最低5件起订，适配中小型定制工程。大口径DN800以上、高压高磅级、合金钢、双相钢、特殊衬塑防腐高端 交付周期：常规中小口径、常压标准现货法兰三通库存充足，24-48小时快速出库发货，满足工程急单抢修、紧急补货需求。普通非标异径、特殊密封面、常规改尺定制产品，生产周期3-7个工作日。大口径超大规格、高压高磅级、特种材质、衬塑衬氟防腐定制产品，生产周期 包装方式：法兰三通采用出口级分级防护包装，重点保护法兰密封面与盘面精度。小口径管件独立包裹气泡膜、密封面加盖防护盖板，防止磕碰划伤、变形渗漏。中大口径产品外层缠绕防水防锈膜，内部放置干燥剂、防锈纸，杜绝海运受潮生锈。批量货品采用加厚编织袋包裹加固，整柜出口使用熏蒸或免熏蒸实木托盘打包，绑扎牢固防挤压。可按客户需求定制外贸英文唛头、批次标识、客户LOGO标签。包装防潮、防震、防磕碰，适配国内长途陆运、国际海运、远洋长途运输，确保到货盘面完好、可直接安装使用。 参考价格：询价 规格范围：DN15-DN2000
Reference price: Inquiry MOQ: Conventional standard stock flange tees support a minimum order of 1 piece, with no purchasing threshold, meeting the needs of engineering part replenishment, project emergency repairs, sample submission for inspection, and foreign trade small trial orders. Conventional reducing sizes, conventional non-standard dimensions, and standard anti-corrosion treatment styles require a minimum order of 5 pieces, suitable for small and medium-sized custom engineering projects. Large-diameter DN800 and above, high-pressure high-rating, alloy steel, duplex steel, and special plastic-lined anti-corrosion high-end... Lead time: Conventional small and medium diameters and standard-pressure stock flange tees have ample inventory, with rapid dispatch within 24-48 hours, meeting urgent project repair and emergency replenishment needs. Ordinary non-standard reducing sizes, special sealing faces, and conventional size-adjustment custom products have a production cycle of 3-7 working days. Large-diameter extra-large specifications, high-pressure high-rating, special materials, and plastic-lined or fluoropolymer-lined anti-corrosion custom products have a production cycle... Packaging description: Flange tees adopt export-grade graded protective packaging, with key protection on flange sealing faces and disc surface precision. Small-diameter fittings are individually wrapped in bubble film, and sealing faces are covered with protective cover plates to prevent collision scratches, deformation, and leakage. Medium and large-diameter products are wrapped externally with waterproof and rust-proof film, with desiccant and rust-proof paper placed inside to prevent moisture and rust during sea transport. Bulk goods are reinforced with heavy-duty woven bags, and full-container exports are packed on fumigated or fumigation-free solid wood pallets, firmly strapped and protected against compression. Foreign trade English shipping marks, batch identification, and customer LOGO labels can be customized as required. Packaging is moisture-proof, shock-proof, and collision-proof, suitable for domestic long-distance land transport, international sea freight, and ocean long-haul transportation, ensuring the disc surface arrives intact and ready for direct installation.
Customization capability: The flange tee supports comprehensive non-standard customization services, with the ability to customize special reducing ratios, 45° oblique tees, extended straight pipe sections, and thickened high-pressure pipe wall structures as needed. Supports customization to multiple national flange standards including Chinese, American, German, Japanese, and Russian standards, with any combination of different sealing face types. Materials can be customized in carbon steel, stainless steel, alloy steel, duplex steel, low-temperature steel, and other special materials, suitable for high-temperature, high-pressure, and highly corrosive special working conditions. Surface treatments include sandblasting, hot-dip galvanizing, pickling and passivation, plastic or fluoropolymer lining, and anti-corrosion paint coating. Supports OEM branding, laser marking, steel stamping of models and customer LOGOs, and can provide one-on-one precision machining based on drawings, samples, and parameters to meet various personalized engineering needs. After-sales support: All flange tees undergo four strict inspections before leaving the factory—appearance, dimensions, sealing faces, and pressure flaw detection—ensuring no defective products are shipped. Products come with a unified 12-month warranty; non-artificial quality issues qualify for free return and replacement, and free technical consultation services are provided for life. Professional teams provide free technical guidance to customers on pipeline selection, pressure working condition matching, flange standard adaptation, and installation and connection support, avoiding problems such as installation misalignment, poor sealing, and standard mismatches. Foreign trade orders receive full follow-up throughout the process, with complete records of production, inspection, and container loading retained, and full cooperation provided for customer customs clearance and acceptance. 24-hour customer service provides rapid response to promptly address order inquiries, quality feedback, and after-sales requests, and large projects can be provided with dedicated technical liaison and follow-up. Certifications/Qualifications: Please contact us to confirm
A flange tee uses flange bolted connections, is detachable, and facilitates inspection and replacement without cutting the pipeline; a welded tee is a permanent connection, requiring cutting for disassembly, and is suitable for occasions where frequent maintenance is not needed. Flange tees are more suitable for large-diameter piping systems that require frequent maintenance.
We provide standards such as national standard (GB) and American standard (ASME). The pressure ratings cover PN10 to PN160 and Class150 to Class2500. Flange sealing face forms include RF, FF, MFM, TG, RTJ, etc. Specific configurations can be customized according to project requirements.
Yes. We support non-standard customization, including reducing tees, lateral tees, extended pipe sections, special materials (such as alloy steel and duplex stainless steel), and surface treatments (such as plastic lining and anti-corrosion coating). Please provide detailed drawings or parameters, and we will customize them for you.
For regular standard items in stock, the minimum order is 1 piece, with shipment within 24-48 hours. For non-standard customization, the minimum order is 5 pieces, with a production cycle of 3-7 working days. For large-diameter or special-material customization, confirmation is required based on the project; please contact us for specific information.
All products undergo strict inspection before leaving the factory. The warranty period is 12 months, and free returns or exchanges are provided for non-artificial quality issues. We offer lifelong free technical consultation, support full follow-up on foreign trade orders, and assist with customs clearance and acceptance inspection.
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