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| Product Name | Economizer for Boiler |
| Structure Type | Tube Coil Serpentine Coil |
| Tube Material | - Carbon Steel : 20#, 20G, A195, A-1 - Corten Class Low Alloy Steel : Corten Steel, ND Steel (09CrCuSb) - Alloy Steel : 15CrMoG, T11 |
| Standard | China GB, ASME |
| Manufacturer Grade | China A Grade, ABS Certificated, TUV Certificated |
| Tube Type | - Bare Tube - Fin Tube |
| Tube Specification | As per Customer requirements |
| Tube Thickness | As per Customer requirements |
| Working Pressure | 1.6 MPa ~ 13.2 MPa |
| Working Temperature | depends on material |
| Welding | Automatic GTAW (TIG) tube butt welding |
| Welding NDT | Automatic RT 100% |















| Certificated Manufacturer for Shandong Longsheng Biotechnology |


ASME (American Society of Mechanical Engineers)
"U" certificate for Pressure Vessels
ASME (American Society of Mechanical Engineers)
"S" certificate for Power Boilers


China A Grade boiler manufacturer authentication.
ISO9001:2015 quality system authentication.
Different packing methods are chosen depend on transportation type.






A: General small equipment will be ready for shipment in 20-25 days if the materials are in stock, or in 35-40 days if the materials are not in stock.
Large equipment delivery time should be determined after technical discussion. Please contact our sales.
A: Yes, we could offer the sample tube or sample materials for free charge, but the cost of freight should be paid by Customer.
A: General small equipment, the 100% of contract price should be paid after signing. Alibaba third party guarantee is available.
Large equipment payment schedule, please contact our sales.
A: General small equipment we guarantee 12 months from the date of shipment departure.
Large equipment warranty period is 12 months from the date of commissioning or 18 months from the date of shipment departure which occurs earlier.
New products from manufacturers at wholesale prices