Cast Pipe Clamp
Ductile iron integral cast saddle clamp, matching fastener for boiler tube erosion shields, adjustable slotted holes for heat exchanger tube fixing.
Factory supply custom boiler anti-wear protection shield, various styles & high temperature alloy materials, snap clip fixing accessories, one-stop supply for coal-fired, biomass, waste incineration boiler tube anti-abrasion protection.
Boiler Protection Shields are engineered wear barriers designed to protect tubes, bends, elbows and other pressure-retaining components from erosion and corrosion caused by high-velocity flue gas and abrasive ash particles.
By intercepting particulate impingement, these shields prevent localized wall thinning, extend tube service life and reduce the frequency of unscheduled outages. They are a proven, cost-effective solution for extending boiler availability in demanding utility and industrial environments.
Sunnysteel designs and manufactures Boiler Protection Shields tailored to specific boiler layouts and firing conditions. Manufactured from high-strength, wear-resistant alloys, our shields reinforce the most vulnerable sections of the boiler circuit, contributing to long-term operational stability and lower lifecycle costs.
In thermal power plants, petrochemical facilities and heavy industrial boilers, pressure parts are continuously exposed to high temperatures, high-velocity flue gases and abrasive ash particles. Over time, this environment leads to progressive wall thinning, loss of structural integrity and eventual tube failure.
Boiler Protection Shields are designed to intercept and dissipate erosive energy before it reaches the base tube. Acting as a sacrificial wear surface, the shield absorbs particle impact and reduces direct impingement on pressure-retaining walls. With proper material selection and optimized coverage geometry, these shields preserve tube integrity, maintain thermal efficiency and minimize unplanned outages.
| Material Grade | Max Working Temp | Applicable Working Condition |
|---|---|---|
| 304 Stainless Steel | ≤650℃ | Medium-low temperature heating boiler, light fly ash abrasion |
| 316 Stainless Steel | ≤700℃ | Medium temperature boiler with slight sulfur-containing flue gas corrosion |
| 309S Stainless Steel | ≤850℃ | Conventional coal-fired power plant superheater |
| 310S / 1Cr25Ni20 | ≤1050℃ | High temperature superheater & reheater, heavy ash erosion |
| 253MA Alloy | ≤1100℃ | Ultra-supercritical unit, biomass & waste incineration boiler |
| A387 P11 / P22 Cr-Mo Plate | ≤580℃ | Medium pressure low-temperature economizer of thermal power plant |
Standard plate thickness: 2mm, 3mm, 4mm, 5mm; thicker plate can be customized for heavy abrasion boiler conditions.
Complete EN 10204 3.1 MTC material test certificate issued for each batch, support third-party factory supervision inspection for power station EPC tender projects.
Small-size boiler protection shields and snap clips are packed into solid wooden crates with anti-collision foam filling to prevent extrusion deformation. Large-length semi-circular shields are bundled with high-strength steel straps, each layer separated by cardboard to avoid surface scratch.
All alloy products coated with anti-rust oil inside and outside for long-distance ocean transportation. Each crate attached clear label including material grade, matched tube OD, quantity and batch number. Wooden pallet or full container loading available, support EXW / FOB / CIF / DAP international trade terms for global boiler engineering importers.
| Shield Type | Structural Feature | Applicable Boiler Position |
|---|---|---|
| Semi-Circular Straight Shield | 120°/160°/180° semicircle, standard straight section | Straight tube section of economizer & superheater |
| Comb Shaped Tube Shield | Integrated comb tooth stamping, fit dense tube bundle gap | Densely arranged superheater & reheater tube rows |
| Bent Elbow Shield | Custom bend radius match 90°/180° boiler tube elbow | High wear elbow area of heat exchange tubes |
| Snap Ring Fastener Clips | Spring alloy snap clip, fixed without welding | All matching shields for anti-drop under thermal expansion |
The current production process for tube shields is to use high-pressure presses and professional moulds for pressing.
Tube shields from us are manufactured to exacting standards. Advanced equipment and material handling capabilities permit us to offer the fastest turnaround times anywhere.
The current production process for tube shields is to use high-pressure presses and professional moulds for pressing.
The production time is short, the welding performance is good, the welding seam does not fall off, the surface is smooth and the appearance is beautiful. The arc-shaped wear-resistant tile is pressed on a press or bent on a pipe bender with a special mould.
To ensure the accuracy of the material. Positive Material Identification (PMI) of stainless steel sheets for tube shields is critical to verifying the grade and composition of stainless steel before it goes into production.
The raw materials for the production of tube shields are generally purchased directly from standard steel mills, and each batch has an MTC. Due to the sharpe limitations of raw materials, it is inevitable that excess materials will be produced. We can use the excess material to make a smaller size snap ring.
Generally, boiler tubes erosion shields are also installed to prevent further wear of the tubes and cause serious consequences such as boiler explosion.
The main role is to protect the heating surface of the boiler pipes, reduce pipeline wear, and increase the heating surface of the pipes.
The snap ring is a short section that is installed on the pipe in conjunction with the wear-resistant tile. Generally, it is welded to the wear-resistant tile by lap welding, that is, to cover the wear-resistant tile slightly, so it is larger than the wear-resistant tile. The opening arc is around 190-200 degrees, the welding position needs to be set aside to facilitate welding and fixing. The width of the snap ring must not be less than 20mm.
The installation requirements of anti-friction tiles of different shapes are slightly different. Basically, each anti-friction tile is installed with not less than 2-4 snap rings. The snap ring and the anti-friction tile are welded together to prevent expansion due to heat. The tiles fall off, and the joints are required to be fully welded.
Generally, boiler tubes erosion shields are also installed to prevent further wear of the tubes and cause serious consequences such as boiler explosion.
The main role is to protect the heating surface of the boiler pipes, reduce pipeline wear, and increase the heating surface of the pipes.
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.
