Tubesheet Flange

What is Tubesheet Flange

A Tubesheet Flange is a thick circular plate or forged flange component with multiple precision-drilled tube holes. It is mainly used to support, locate, and seal tubes in shell-and-tube heat exchangers.

Unlike standard pipe flanges, tubesheet flanges require accurate tube hole layout, strict flatness control, precise sealing surface machining, and reliable material performance. The tube holes are usually arranged according to triangular pitch, square pitch, or customized tube layout.

Tubesheet flanges can be supplied as forged tubesheets, clad tubesheets, drilled tubesheets, or integrated flange-type tubesheets according to equipment design.

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图片建议：放一张横幅图，标题为 MAIN PRODUCTS，展示 Tubesheet Flange、Weld Neck Flange、Anchor Flange、Orifice Flange、Blind Flange 等产品。
图片标题：Main Flange Products

Tubesheet Flange Specifications

Additional Specifications:

• Hole Type: Tube holes, bolt holes, tie rod holes, vent holes, drain holes
• Tube Layout: Triangular pitch, square pitch, rotated square pitch, customized layout
• Processing: CNC drilling, deep hole drilling, reaming, grooving, facing
• Cladding Options: Stainless steel cladding, nickel alloy cladding, weld overlay
• Custom Service: Special OD, ID, thickness, tube hole diameter, pitch, groove, and sealing face available

Tubesheet Flange Materials & Grades

Tubesheet Flange Dimensions

Tubesheet Flange Dimension Drawing

Tubesheet flanges are usually manufactured according to customer drawings because tube hole layout, thickness, sealing face, groove design, and material selection depend on heat exchanger structure, working pressure, temperature, and medium.

Advantages of Tubesheet Flange

Accurate Tube Hole Drilling

CNC drilling and precision machining ensure accurate tube hole diameter, pitch, and layout.

Strong Structural Support

Thick forged or machined construction provides stable support for tube bundles and pressure vessel connections.

Reliable Sealing Performance

Precision sealing face machining helps reduce leakage risk in heat exchanger and pressure vessel systems.

Custom Tube Layout

Triangular pitch, square pitch, rotated square pitch, and special tube patterns can be produced according to drawings.

Cladding and Overlay Options

Stainless steel or nickel alloy cladding improves corrosion resistance while controlling material cost.

Suitable for Complex Equipment

Tubesheet flanges are suitable for heat exchangers, condensers, boilers, evaporators, and chemical process equipment.

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图片建议：放锻造、热处理、CNC 加工、深孔钻、管孔检测、包装照片拼图。
图片标题：Tubesheet Flange Workshop

Applications

Shell and Tube Heat Exchangers

Used to fix and support heat exchange tubes in shell-and-tube heat exchanger systems.

Condensers

Applied in power plants, chemical plants, and refrigeration systems for condensation equipment.

Boilers and Evaporators

Used in boiler equipment, evaporators, and thermal process systems.

Petrochemical Equipment

Suitable for reactors, coolers, process vessels, and pressure equipment in petrochemical plants.

Power Generation

Used in steam condensers, feedwater heaters, cooling systems, and auxiliary heat exchange equipment.

Chemical Processing

Stainless steel, duplex steel, and nickel alloy tubesheet flanges are suitable for corrosive media and demanding process conditions.

Image Position 5: Application Scenarios
图片建议：放换热器、冷凝器、锅炉、化工设备、发电厂、压力容器应用场景。
图片标题：Tubesheet Flange Application Scenarios

Why Choose Us

Comprehensive Manufacturing Capability

We coordinate forging, heat treatment, CNC machining, deep hole drilling, sealing face machining, inspection, coating, and packaging under one production system.

Precision Drilling Capability

We control tube hole diameter, tube pitch, hole depth, flatness, and surface finish according to drawings.

Custom Engineering Support

We can manufacture tubesheet flanges according to ASME, TEMA, API, EN, DIN, and customer drawings.

Wide Material Options

Carbon steel, stainless steel, alloy steel, duplex steel, nickel alloy, and clad materials are available.

Strict Quality Inspection

Each batch is inspected for material grade, dimensions, tube hole accuracy, flatness, sealing surface, and appearance.

Export Packaging Support

Anti-rust treatment, wooden case packaging, steel frame packaging, and customized marking are available for international shipment.

Image Position 6: Certificates
图片建议：放 SGS、ISO、TUV、PED、材质证书、检测报告等证书图。
图片标题：Tubesheet Flange Certificates

FAQ

Q: What is a Tubesheet Flange?

A: A tubesheet flange is a thick drilled flange or plate used to support and fix tubes in shell-and-tube heat exchangers, condensers, boilers, and pressure vessel systems.

Q: Is Tubesheet Flange a standard pipe flange?

A: No. It is usually a customized heat exchanger component manufactured according to equipment drawings and design requirements.

Q: Can the tube hole layout be customized?

A: Yes. Tube hole diameter, tube pitch, hole quantity, layout pattern, groove, sealing face, and thickness can be customized.

Q: Can you make clad tubesheet flanges?

A: Yes. Stainless steel cladding, nickel alloy cladding, and weld overlay options can be supplied according to project requirements.

Q: What information is needed for quotation?

A: Drawings, material grade, OD, thickness, tube hole diameter, tube pitch, hole quantity, sealing face, cladding requirement, and inspection standard are recommended.

Contact Us

Ready to enhance your heat exchanger systems with premium Tubesheet Flange solutions?Contact kevin.zhao@hkflange.com for technical specifications and competitive quotations today.