Angle iron flange air duct

The inner wall of the angle iron flange air duct is smooth, the resistance is small, the ventilation loss is small, the energy consumption is reduced, the operating cost is saved, the air tightness and airtightness are good, and the compression strength under pressure is high. At the same time, the good fire resistance is also one of the reasons why the angle iron flange air duct is widely used in engineering.

Custom duct

Stainless steel welded air duct

Due to its good corrosion resistance, heat resistance, high strength and other physical and chemical properties, it is mainly used in a variety of process exhaust systems, solvent exhaust systems, organic exhaust systems, exhaust gas exhaust systems and the outdoor part of common exhaust systems, wet and hot exhaust systems, smoke exhaust and dust removal systems with high air tightness requirements.

Common plate flange air duct

Common-plate flange air duct is also called non-flange air duct. Its manufacturing form is faster, more convenient and less air leakage than traditional rectangular air duct. Its advantages are saving materials and reducing project investment; Small air leakage, low energy consumption and low operating costs are popular with construction enterprises.

Spiral duct

Spiral air duct is a thin wall pipe with spiral seam made of metal strip coil. It is round, air-tight and water-tight. It is mainly used for air supply and bulk material transportation, instead of traditional white iron pipe (i.e. manual seam iron pipe). It is a kind of air duct with full mechanism. The straight pipe does not need to be knocked manually.

Angle iron flange

Angle iron flange is to fix two pipes, pipe fittings or equipment on a flange plate, add flange pads between the two flanges, and fasten them together with bolts to complete the connection. Its manufacturing form is faster, more convenient and less air leakage than the traditional rectangular air duct. Its advantages are saving materials and reducing project investment; Small air leakage, lower energy consumption and save operating costs.

Angle code

In architecture, corner code is the hardware that connects 90-degree right-angle intersecting components. The model, form and material type of the corner code are determined according to the stress of the connected member. Corner code is often used in decoration engineering and furniture assembly. For example, curtain wall installation is connected by corner code.

Shim

Gasket is a mechanical seal between two objects, which is usually used to prevent pressure, corrosion, and natural thermal expansion and contraction leakage of pipeline between two objects. A material made of paper, rubber or copper and placed between two planes to strengthen the sealing, and a sealing element set between static sealing surfaces to prevent fluid leakage.

Elbow

Elbow is a commonly used pipe fitting for connection in pipeline installation. It connects two pipes with the same or different nominal diameter to make the pipeline turn at a certain angle. Bending radius less than or equal to 1.5 times the pipe diameter belongs to elbow, and bending radius greater than 1.5 times the pipe diameter belongs to elbow. According to angle, there are 45 ° and 90 ° 180 ° which are the most commonly used. In addition, according to engineering needs, the materials of 60 ° elbow include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metal and plastic.

Special-shaped pipe - tee

The tee has three openings, namely one inlet and two outlets; Or a kind of chemical pipe fittings with two inlets and one outlet, which are T-shaped and Y-shaped, with equal-diameter nozzle and reduced-diameter nozzle, and are used at the confluence of three identical or different pipelines.

Square to round joint

The square to round joint is an indispensable accessory in the installation process of the ventilation duct project. The air outlet of the fan is usually square, and it needs to be connected to the round pipe or square pipe after the square to round diameter reduction.

Duct diameter reduction

The reducer of air duct is also called reducer, reducer and straight reducer. It is one of the ventilation fittings, used for the connection between two pipes with different diameters. According to different shapes, it can be divided into concentric reducer and eccentric reducer. The reducer material includes stainless steel reducer and galvanized reducer.

Fireproof air duct

The fire protection air duct is equipped with smoke exhaust air duct, and the fire protection is equipped with air supply air duct. The first is to extract the flue gas from the pipe outward, and the second is to blow a large amount of air into the room to squeeze out the flue gas. The high-pressure system material can withstand a three-hour fire. The thickness of galvanized steel plate with side length less than 630mm shall not be less than 0.75mm, and 630-1250 shall not be less than 1.0mm.

Muffler

It means that for air flow pipes with noise transmission at the same time, noise reduction devices such as pipes and elbows with sound absorption lining or pipes with sudden changes in sectional area and other discontinuous acoustic impedance can be used to attenuate or reflect the noise in the pipes. The former is called resistance muffler, the latter is called resistance muffler, and there is also impedance composite muffler.

Fire smoke exhaust duct

The inner wall of the fire smoke exhaust duct is smooth, the resistance is small, the ventilation loss is small, the energy consumption is reduced, the operating cost is saved, the air tightness and airtightness are good, and the compression strength under pressure is high. At the same time, good fire protection performance is also one of the reasons for the wide application of fire smoke exhaust duct in engineering.