High Frequency Welded Serrated Fin Tube
HIGH FREQUENCY WELDED SERRATED FIN TUBEThe High Frequency Welded Serrated Fin Tube is one kind of tubular type efficient heat transfer element having serrated fins. WHY USE FINNED TUBES1) The heat exchange area is increased in the effective space to improve the heat transfer effect.2) Reduce the occupied space of the heat transfer surface to reduce its volume, especially suitable for quick-install boilers.3) Reduce equipment costs and improve equipment safety.4) The running cost is lowered due to a decrease in the water side pressure drop .5) The fin tube stiffness is increased, which improves the seismic resistance of the tube. DIMENSION AND MATERIALThe following table shows Simcan’s manufacturing capabilities for High Frequency Welded Serrated Fin Tube:Tube O.D.:16 to 273 (mm)3/8" to 10"(NPS)Tube Wall Thk.:2 to 28.6 (mm)0.08" to 1.1"Tube Length:≤28,000 (mm)≤92 ftFin Thk.:0.5 to 3.5 (mm)0.02" to 0.14"Fin Height:8 to 35 (mm)0.31" to 1.3"Fin Pitch:3 to 333 FPM1 to 8 FPIFin Type:Solid, "U"or"V" SerratedFin Material:C.S. (most common grade: 08F, SPCC)S.S. (most common grade are AISI 304, 316, 409, 410, 321,347 )A.S. Tube Material:C.S. (most common grade: A106 Gr.B, A210, A192)S.S. (most common grade are TP304, 316, 321, 347 )A.S.(most common grade are T/P5,9,11,22,91 )Duplex Steel(most common grade are 2205 etc. )* This table is used as a general guide to our capabilities, please call us for any other customized cases. PRODUCTION CAPACITYSimcan has total four(4) PLC High Frequency Welded Serrated Fin Tube finning lines, monthly production capacity is 1200 tons in total. FABRICATION PROCESSThe steel fin is helically wound and continuously welded to the tube by high frequency electric resistance welding(HFERW). Before the fin strip is serving to the welding machine, it will be serrated first, the rest of process is as same as welding the solid fin tubes. FAQQ1. What is the referenced codes and standards?A: We manufacture according to requirements specified as below:HG/T 3181-2009 High Frequency Resistance Welded Spiral Fin TubesInternational Standard For Dimensions, Tolerances and Tests of High Frequency Resistance Welded FinsMaterial Requisition, drawings or Technical Agreement Q2. How do you pack the productsA: Each package is designed and made according to seaworthy packing standard and clients’ handling and lifting capability.Finned tubes will be packed into steel frameworks and wrapped with weather proof PE film and plywood board covering up. In addition, each row of finned tubes will be isolated from adjacent with plywood bars to prevent rigid impact during transportation. For all exporting packages, we only use plywood instead of wood for fumigation free purpose. Q3: How do you guarantee the quality?A: we are ISO certified company and we maintain strict controls according to our specific written procedures and client specifications during all phases of manufacturing of our products ensuring full materials traceability and top quality. Besides, inspection activities carried out by world reputable third party such as TÜV, BV, SGS, Lloyd's, ABS, Intertek(Moody) etc. is available on call. Q4: Do you have design capability?A: Yes, we could develop the shop drawings and submit for clients’ approval. Q4: How do you handle the documentation?A: As a professional supplier, Simcan does not only manufactures products but also has strong capability on preparing and submitting documents as listed below but not limited to:Before FabricationDesign and Fabrication ScheduleDrawings and dataFabrication Procedures including WPS, PQRInspection and Test Plan (ITP)During FabricationDaily, weekly or monthly progress reportAfter FabricationA complete set of final archive including:Raw Material Mill CertificatesProduct Conformity CertificatesInspection Reports including Material Receipt Inspection Report, Test Report etc.Packing List and Proforma InvoiceCertificate of Origin or any other documentation mandatory for clients’ customs clearance or tax preference
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