Low Temperature Boiler Superheater 1.25MPa - 9.8MPa Superheater Coil

Low-Temperature Superheater Coil for Convective Section with Carbon Steel Cost-Effective Design

The Low-Temperature Superheater Coil is the first-stage steam superheating component fabricated by Boyu Heavy Industry, designed for the convective section of industrial and utility boilers where flue gas temperature is relatively moderate. As a high-volume boiler component manufacturer with 3000-ton monthly capacity, Boyu produces low-temperature superheater coils using cost-effective carbon steel tubes (20G/SA-210) suitable for steam temperatures up to 460C. This coil serves the primary function of providing the initial temperature rise from saturated steam to intermediate superheated steam, which is then further heated by the high-temperature superheater. For industrial boilers operating at 3.82MPa/450C or lower, the low-temperature superheater often serves as the sole superheating stage.

The Low-Temperature Superheater Coil is specifically constructed with 20G (SA-210 Gr.A1/C) carbon steel seamless tubes bent into serpentine loops, connected to carbon steel headers (20G/SA-106 Gr.B). Boyu fabricates coils with standard tube sizes of 32-51mm OD and 3-5mm wall thickness, using CNC precision bending with ovality <8%. The carbon steel material provides excellent weldability and proven reliability at temperatures up to 460C, making it the most cost-effective choice for low-temperature superheater service. Coils are typically arranged in horizontal or vertical configurations in the convective pass, with tube spacing optimized for flue gas flow and heat transfer. Steam-side pressure ranges from 1.25MPa to 9.8MPa, with outlet steam temperature from 250C to 450C.

Manufactured using certified carbon steel tubes with CNC bending, automatic welding and comprehensive inspection, every Low-Temperature Superheater Coil undergoes 100% RT for weld joints, bend inspection, dimensional verification and 1.5x design pressure hydraulic test. Boyu's high-volume production capability and standardized carbon steel tube inventory enable efficient manufacturing with competitive lead times of 20-35 days. Complete material certificates and weld records accompany every shipment. The modular coil design with pre-welded connectors enables rapid on-site installation. For higher dust applications, anti-abrasion tiles can be added to the leading tube rows.

One significant advantage of Boyu Low-Temperature Superheater Coils is the cost-effectiveness achieved through appropriate material selection and high-volume production. Using carbon steel (20G/SA-210) for temperatures up to 460C eliminates unnecessary alloy steel cost while providing proven long-term reliability. This is particularly valuable for industrial boilers where the superheater outlet temperature does not exceed 450C. Additionally, Boyu's large carbon steel tube inventory and standardized bending processes reduce material procurement time and fabrication cost, translating to competitive pricing for boiler manufacturers and EPC contractors.

The Low-Temperature Superheater Coil is adaptable to various industrial boiler types and capacities, making it suitable for textile, food processing, chemical, pharmaceutical, printing and dyeing, and central heating industries. Its versatility enables fabrication for boilers from 1t/h to 130t/h, operating at pressures from 1.25MPa to 9.8MPa with steam temperatures up to 450C. Furthermore, coils can be customized for specific tube sizes, bend configurations, header arrangements and anti-abrasion requirements, ensuring optimal performance for each industrial boiler design.

In addition to functional benefits, the Low-Temperature Superheater Coil is designed with reliability and maintenance convenience in mind. The carbon steel construction provides predictable corrosion rates and easy weld repair. The modular design allows for individual coil replacement during maintenance. Boyu provides technical support for thermal design, tube sizing, arrangement optimization and failure analysis, helping industrial boiler manufacturers achieve the optimal balance between superheat performance, material cost and pressure drop.

To summarize, the Boyu Low-Temperature Superheater Coil represents a cost-effective first-stage superheating solution for industrial and utility boilers. By delivering carbon steel, precision-bent coils with verified weld quality and competitive pricing through high-volume production, it provides reliable initial steam superheating with optimal cost-performance ratio. Our 3000-ton monthly capacity, standardized manufacturing and expert technical support make this product an ideal choice for industrial boiler manufacturers. Investing in Boyu low-temperature superheater coils is a strategic decision that supports competitive boiler pricing, reliable performance and long-term operational efficiency.

Features

·        Carbon steel 20G(SA-210) tubes, cost-effective for <=460C service

·        CNC precision bending, ovality <8%, tube OD 32-51mm, WT 3-5mm

·        100% RT weld joints + bend inspection + 1.5x hydraulic test

·        Steam: 1.25-9.8MPa, outlet temp 250-450C

·        High-volume production (3000 tons/month), delivery 20-35 days

·        Anti-abrasion tile option for high-dust applications

·        Modular coil with pre-welded connectors for rapid installation

·        Suitable for 1t/h to 130t/h industrial boilers

·        Large carbon steel tube inventory for fast material availability

·        Expert support for thermal design and arrangement optimization

Technical Parameters

Applications

The Boyu Low-Temperature Superheater Coil is the first-stage steam superheating component for industrial and utility boilers. Manufactured in Shandong, China with cost-effective carbon steel construction, this coil provides initial steam temperature rise in the convective section. Certified with ISO9001, ASME, Grade A and SGS, the product guarantees high quality and competitive pricing.

This Low-Temperature Superheater Coil is widely used in industrial steam boilers for textile, food processing, chemical, pharmaceutical, printing and dyeing, and central heating applications. Its carbon steel construction provides reliable superheating for boilers operating at up to 9.8MPa and 450C steam temperature.