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Heat Exchanger Flanges are custom-engineered flanges and tube sheet components used in heat exchangers, pressure vessels, boilers, petrochemical plants, oil and gas facilities, power plants, chemical processing systems, and high temperature or high pressure service equipment. Products can be manufactured according to customer drawings and project specifications, with options for bolted, floating and flanged designs.
Available features include custom tube holes, special bolt patterns, sealing grooves, O-ring grooves, spiral sealing faces, large-diameter machining and project-specific materials. Each component can be supplied with material traceability, dimensional inspection, marking, coating and full documentation such as MTC, ITP and MDR.
size | OD: 100mm - 8000mm |
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Construction Type | Bolted, Floating, Flanged |
STANDARD | Manufactured according to customer drawings, pressure vessel requirements and applicable flange standards such as ASME B16.5, ASME B16.47, EN1092, AS2129, AS/NZ 4087 or project specifications. |
PARTS | Tube plates, Baffles, Bonnets, Self-reinforced Weld Necks, Manways, Thermo wells, Injection Nozzles, Long Weld Necks and other components. |
Special machining | Sealing grooves,non-standard bolt hole patterns,O-ring grooves,special-shaped grooves,slots |
Seal | Spiral sealing faces and O-ring grooves ,Ra 3.2µm-6.3µm or drawing specifications. |
Heat exchanger flanges and tube sheets can be manufactured from a comprehensive range of materials to match specific operating conditions. Available categories include Stainless Steel (ASTM A182-F304, F304L, F316, F316L, F321, F347H, F317; 304/L/H/LN, 316L/H/LN/Ti, 310S/H, 309S), Super Austenitic Stainless Steel (904L/N08904, F44/S254MO, S31254, N08367/AL-6XN), Duplex & Super Duplex Steel (ASTM A182-F51, F53; S31803, S32205, S32750, S32760), Nickel (N4, N6), Titanium & Titanium Alloy (GR1-GR12), Hastelloy (Alloy B, B2, B3, C4, C22, C276, C2000), Inconel (Alloy 600, 601, 617, 625, 718, X, X-750), Incoloy (Alloy 800, 800H, 800HT, 825, 925, 926), Monel (Alloy 400, K500), other nickel alloys (G30, G35, 188, 230, 556), Alloy Steel (16Mn, 12CrMo, ASTM A182-F11, F22, F91), Pipe Steel (ASTM A694-F42 through F80) and Carbon Steel (ASTM A350-LF2, LF3, Q235A, 20#, ASTM A105).
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Heat exchanger flanges and tube sheet components are deployed across heat exchangers, pressure vessels, boilers, petrochemical plants, oil and gas facilities, power plants, chemical processing systems, and high temperature or high pressure service equipment.
Every heat exchanger flange and tube sheet component undergoes a ten-stage quality assurance process aligned with approved drawings and project requirements: (1) Drawing and Specification Review; (2) Raw Material Inspection and Traceability with verified heat numbers and material certificates; (3) In-Process Machining Inspection covering CNC turning, drilling, boring, milling and groove machining; (4) Dimensional Inspection of OD, ID, thickness, tube hole diameter and pitch, PCD, bolt holes, groove dimensions and flatness; (5) Sealing Face and Surface Finish Inspection; (6) Non-Destructive Testing including visual, ultrasonic, magnetic particle, liquid penetrant, radiographic and PMI testing; (7) Mechanical and Material Testing including hardness, impact, tensile and chemical composition verification; (8) Marking Verification; (9) Documentation Review covering MTC, NDT reports, PMI reports, ITP and MDR; (10) Packing and Final Inspection with rust prevention and export packing options.
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Heat exchanger flanges can be manufactured from over ten material categories including stainless steel, duplex and super duplex steel, super austenitic stainless steel, nickel alloys (Hastelloy, Inconel, Incoloy, Monel), titanium, alloy steel and carbon steel. Specific grades include ASTM A182-F304, F316L, F51, F53, 904L, Alloy C276 and Alloy 625.
Heat exchanger flanges are manufactured according to customer drawings, pressure vessel requirements and applicable flange standards such as ASME B16.5, ASME B16.47, EN1092, AS2129, AS/NZ 4087 or project specifications.
The outside diameter range is 100mm to 8000mm. Custom sizes, bolt patterns and sealing configurations can be manufactured according to customer drawings and project specifications.
Each component can be supplied with material traceability and full documentation including MTC, dimensional inspection report, NDT report, PMI report, heat treatment report, surface roughness report, ITP and MDR, all reviewed before shipment.
