PP anti-corrosion air duct

Our company mainly produces various types of galvanized air ducts, stainless steel air ducts, spiral air ducts, soundproof air ducts and insulation air ducts, and acts as an agent for selling PP anti-corrosion air ducts, fiber cloth air ducts, supporting axial flow fans, centrifugal fans, fire (dual-use) cabinet centrifugal fan cases, as well as various air vents, air valves and fire dampers.

1、 Introduction to ventilation ducts
Ventilation ducts, plates, profiles, and other major finished materials used in the production and installation of air ducts shall comply with the design and relevant national standards, and shall be accompanied by factory inspection certificates. Materials shall be inspected and accepted in accordance with the relevant national standards upon arrival.
Ventilation ducts are generally classified by material: steel plate ducts (ordinary steel plates), galvanized sheet (white iron) ducts, stainless steel ducts, fiberglass ducts, plastic ducts, composite material ducts, color steel sandwich insulation board ducts, double-sided aluminum foil insulation ducts, single-sided color steel insulation ducts, adhesive coated ducts (such as mining ducts), mining plastic ducts, etc;
Usage classification: Generally includes: purification system return air duct, central air conditioning ventilation duct, industrial air supply and exhaust ventilation duct, environmental protection system suction and exhaust air duct, mining gas drainage pipe, mining coated cloth air duct, etc;
Shape classification generally includes: circular, rectangular, spiral, etc;
Processing technology: It can be divided into angle iron flange air duct and common plate flange air duct.
2、 Duct application
Ducts are mainly used in industrial and construction engineering, and their application areas mainly involve: purification systems for electronic industry clean rooms, purification systems for pharmaceutical and food sterile workshops, central air conditioning systems for hotels, shopping malls, hospitals, factories, and office buildings, exhaust ducts for dust removal, smoke exhaust, oil absorption, etc. for industrial pollution control, supply ducts for industrial environments or job comfort, and gas extraction for coal mines

Gas systems, supply and return air systems for environmental control in coal mines, etc;
Differentiate by purpose
1. Air ducts for purifying air conditioning systems: galvanized sheet, stainless steel; Glass fiber reinforced plastic and composite materials that may cause dust source pollution during use are prohibited
2. Air ducts for central air conditioning systems: galvanized sheet metal, color steel insulation board; (Glass fiber reinforced plastic and composite materials can be used)
3. Air ducts for environmental control systems: galvanized sheet, stainless steel; (Plastic, fiberglass, composite materials can be used)
4. Air ducts for industrial ventilation systems: steel plates, galvanized plates; (Libo ventilation duct. Can be made of plastic, fiberglass, composite materials)
Note: Fiberglass ducts can be divided into two types: organic and inorganic. Organic materials are prohibited for those with fire protection requirements according to design specifications;
5. Special use occasion air ducts: mining coated cloth air ducts, mining plastic ventilation ducts; (Requirements for flame retardant and anti-static mining safety characteristics)
3、 Duct construction
1. For complex civil buildings, in the design phase, each profession (HVAC, water supply and drainage, power supply and lighting, and building specialties) should first negotiate the spatial separation and determine the elevation range of each type of pipeline. In general, one should not exceed the boundaries set for oneself. When encountering someone who wants to cross the boundary, it is necessary to negotiate with other projects.
2. The principle for solving the collision and coordination of various ventilation ducts is generally: "Small pipes give way to large pipes, and pressure gives way to no pressure". For example, if a water pipe collides with an air duct, the water pipe should bend. If the cold and hot water pipes collide with the sewer pipe, the cold and hot water pipes should be changed.
3. Before starting work, the engineer in charge of the equipment should draw the pipelines and single lines of each type of work on a plan. Use a colored pen for each type of pipeline. Combine the elevation at each intersection point to see if there are any contradictions, identify them in a timely manner, and solve the problem before installation.
4. In order to reduce investment, save space, and lower floor height, some pipelines without slope requirements can be laid through beams (such as water pipes, fire sprinkler pipes, etc.).
4、 Product features:
Galvanized air duct
1. Smooth appearance, no zinc nodules or burrs, silver white in color;
2. Easy installation with few connection points;
3. Low ventilation resistance and low ventilation noise;
4. Good strength and rigidity;
5. The thickness is controllable;
6. No hydrogen embrittlement, no temperature hazards, and can ensure that the mechanical properties of the material remain unchanged;
7. Can replace some processes that require hot-dip galvanizing;
8. Good corrosion resistance;
9. Completed by hot-dip galvanizing method, suitable for various strong corrosive environments such as strong acid, alkali mist, etc;
10. Various specifications of air ducts can be specially designed and customized according to customer requirements.
Stainless steel air duct
1. Smooth appearance, consistent in appearance and color, without zinc nodules or burrs, presenting a silver white color.
2. Good corrosion resistance, suitable for various strong acid, alkali mist and other highly corrosive environments.
3. The link is easy to use and can withstand significant pressure.
4. Easy installation and long service life.
5. The inner and outer walls are very smooth, so the air duct resistance is low and there will be no noise during use
Reduce energy consumption and save costs.
Spiral air duct
Spiral air duct is a thin-walled pipe made of metal strip material rolled into a spiral seam, circular, non welded, non leaking, non leaking, and commonly used for air supply and bulk material transportation, replacing traditional white iron pipes (i.e. manually seam iron pipes). It is a type of air duct with a full mechanism, and straight pipes do not require manual tapping.
1) Good product compatibility and high degree of standardization;
2) Strong airtightness;
3) Low ventilation loss;
4) Factory inspection is convenient;
5) Anti equilibrium external pressure (negative pressure) program;
6) Material Province;
7) Low installation cost;
8) The overall layout of the installation is aesthetically pleasing;
9) Daily maintenance and cleaning are convenient.
PP anti-corrosion air duct
1. Non rusting: PP pipes can withstand high concentrations of acid and alkali corrosion with pH values ranging from 1 to 14 over a wide temperature range.
2. Wear resistant and non scaling: The inner walls of PP pipes and their fittings are uniform and smooth, with low flow resistance and no scaling.
3. Reduce vibration and noise: PP pipes have excellent sound insulation performance, which can significantly reduce vibration and noise caused by liquid flow.
4. Antifreeze cracking: PP material has excellent elasticity, which allows the cross-section of pipes and fittings to expand together with the freezing liquid without cracking. 5. Anti condensation, low heat loss: PP material is a poor thermal conductor, which can reduce condensation and minimize heat loss.
5. Easy installation: PP pipes are lightweight, easy to install and operate, and have weldability.