Stainless Steel Type A Flange Lap Joint Long Pipe End Stub

Accessories

• Pipe body, flanged end face, and integral components: Made of 304/316L stainless steel, the material is dense, free of sand holes and pores, resistant to acids and alkalis, corrosion-resistant, and highly tough, and not easily deformed or cracked after long-term use;
• The flanged part is integrally stamped, resulting in high flatness, uniform contact surface, and good sealing performance;
• The entire assembly undergoes pickling and passivation treatment, providing excellent rust prevention and suitability for complex industrial conditions.

• Specifications:DN15~DN300, complete series specifications;
• Working pressure: 0.1~2.5MPa; Working temperature: -20℃~350℃;
• Connection method: Flanged union connection;
• Surface treatment: Industrial pickling and passivation, polishing treatment can be customized upon request.

Digital advantages

• 1. Digital archiving of all product specifications and parameters allows for quick lookup of models, dimensions, and tolerances, facilitating selection, drawing integration, and BIM modeling.

• 2. Raw material batches, processing procedures, and testing data are all entered into the system, enabling traceability via barcode scanning and more efficient quality control.

• 3. Parameter integration with pipeline monitoring systems, combined with operational data, predicts wear and sealing status, enabling proactive maintenance and reducing unexpected failures.

• 4. Real-time synchronization of specifications, inventory, and shipping data allows for rapid order matching and resource allocation, shortening delivery cycles.

• 5. Cloud sharing of electronic samples, 3D models, and technical documents enables remote solution confirmation and technical briefings, resulting in higher communication efficiency.

Stainless Steel Type A Flange Lap Joint Long Pipe End Stub

 

Feature (F)、Advantage (A)、Benefit (B)

1. Raw Material:

• F: Made of industrial-grade 304/316L stainless steel, high-purity material, low impurities, strong corrosion resistance, uniform and stable material, meeting industrial pipeline standards.
• A:Corrosion resistant, rust-free, high strength, and anti-aging; solves the problems of easy corrosion and cracking of ordinary joints, improves pressure resistance and temperature resistance, and reduces the probability of material failure.
• B:  Pipelines are less prone to corrosion and leakage, reducing downtime and significantly lowering replacement costs and material losses.

2. Processing Technology:

• F:One-piece flanging forming + CNC precision turning, seamless, precise dimensions, high concentricity, smooth and burr-free ends, and uniform stress.
• A: No weak points in welding, vibration resistant, fatigue resistant, and good installation adaptability; improves the problems of many gaps, poor precision, and easy cracking in traditional processing, enhancing product consistency.
• B:  Solves the pain points of conventional welded fittings (rough welds, residue accumulation,difficult cleaning validation). Reduces changeover cleaning time by >60%, cuts cleaning agentconsumption by nearly 50%, and achieves 100% first-pass cleaning validation.

3. Structure Feature:

• F:One-piece bore structure, smooth flow channel with no dead corners, rounded edge transition, uniform stress distribution, supports repeated disassembly and assembly.
• A:No diameter reduction, low resistance, no material accumulation; solves the problems of traditional joints such as scale buildup, flow restriction, and easy damage during disassembly and assembly, improving conveying efficiency and structural durability.
• B:  More energy-efficient fluid conveying, clean operating conditions with no residue and no contamination, quick maintenance and disassembly, reducing downtime.

4. Core Accessory Feature:

• F: Industrial-grade high strength, high corrosion resistance, and high sealing properties, suitable for complex operating conditions such as high and low temperatures, high pressure, and corrosion, with strong versatility.
• A:Wide adaptability to operating conditions, stable performance, and long service life; improves the problems of ordinary joints being unable to withstand complex operating conditions, easily degrading, and easily scrapping, enhancing the overall reliability of the system.
• B: One joint adapts to multiple scenarios, reducing the types of spare parts, less prone to failure under extreme operating conditions, more cost-effective and stable in long-term use.

5. Seal Ring Feature:

• F: Compatible with industrial-grade EPDM/PTFE/FKM seals, suitable for mirror-finish flat end faces, providing a tight, close-fitting, and media-resistant seal.
• A:High-pressure leak-proof, non-swelling, and non-brittle; reusable after repeated disassembly and reassembly; solves the problems of aging, leakage, and contamination common in ordinary seals, improving seal stability.
• B:Prevents leaks and spills, ensuring production safety and cleanliness, reducing the frequency of seal replacement, and lowering maintenance costs.

 

Stainless Steel Type A Flange Lap Joint Long Pipe End Stub

 

Connection Type：Flange Connection, Butt Weld Connection, Socket Weld Connection, Threaded Connection, Clamp Connection, Union Connection

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Production & Machining Process：CNC Precision Machining, CNC Turning, CNC Milling, Bending Forming, Flanging Forming, Integral Cold Forging, Hot Press Forming, Precision TIG Welding, Seamless Welding

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Surface Treatment：Electrolytic Polishing, Mechanical Polishing, Mirror Polishing, Satin Finishing, Pickling & Passivation, Sand Blasting, Brushing, Electroplating

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Raw Material Processing：Hot Forging, Cold Forging, Integral Forging, Sand Casting, Investment Casting, Die Casting, Plate Pressing, Roll Forming, Extrusion Forming

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Application Method：Fixed Permanent Installation, Removable Detachable Installation, Reusable Cyclic Assembly, High-Pressure Fluid Pipeline Connection, Corrosive Medium Pipeline Connection, Hygienic/Clean Pipeline Connection, Vibration-Resistant Pipeline Connection, Vacuum System Pipeline Connection

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Seal Ring Material Options：EPDM (Ethylene Propylene Diene Monomer), FKM (Fluorocarbon Rubber), PTFE (Polytetrafluoroethylene), NBR (Nitrile Butadiene Rubber), Silicone Rubber, Viton®, Kalrez®, FFKM (Perfluoroelastomer)

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Sealing Method：Flat Face Seal, Flange Gasket Seal, O-Ring Seal, Lip Seal, Welded Permanent Seal, Clamp Compression Seal, Spiral Wound Gasket Seal, Metal Jacketed Gasket Seal