pp pipe also known as PP plastic air duct, plastic ventilation duct. PP air ducts chemical resistance are usually used for the exhaust of corrosive exhaust gas in the environment of industrial plants, the exhaust of fume hoods in the laboratory, and the exhaust of VOC organic exhaust gas. Also often used for hydroponics or organic vegetable growing.The advantages of PP air ducts are light weight, acid and alkali corrosion resistance, hot melt welding with PP electrodes, and easy processing and installation of fittings such as elbows, flanges, tees, and reducing diameters. It is currently the most widely used in waste gas treatment in the environmental protection industry.

polypropylene duct installation method

pp pipe socket connection, that is, a PP sleeve is welded at the end of each air duct to facilitate the insertion of the next air duct;
PP air duct and air duct flange connection, that is, a PP flange is welded at both ends of each air duct, and the screw-to-lock connection is used during installation.
The strengthening method of PP air duct, in industrial exhaust, in most cases, the end centrifugal fan is used to exhaust air, and the negative pressure is formed in the PP air duct, and the industry design specification stipulates the required wall thickness of the PP air duct at a certain wind speed. And the strengthening method, usually the PP air duct is reinforced by the outer flange, such as a 3-meter-long air duct, which is reinforced with 2 flanges, which is beautiful and durable. The large square air duct is reinforced by the outer flange, and the internal PP circular pipe is used for structural support.

polypropylene duct fresh air system structure

In order to form a complete PP anti-corrosion pipeline system, in addition to PP air ducts, it is not enough to have PP air duct accessories, which can be combined with the installation to form a complete anti-corrosion acid and alkali-resistant exhaust air pipeline system.

Poducts material :polypropylene

Contact email :Leyte@chian-xicheng.com

WhatsApp :+8619928762865 Sara 

pp pipe also known as PP plastic air duct, plastic ventilation duct. PP air ducts chemical resistance are usually used for the exhaust of corrosive exhaust gas in the environment of industrial plants, the exhaust of fume hoods in the laboratory, and the exhaust of VOC organic exhaust gas. Also often used for hydroponics or organic vegetable growing.The advantages of PP air ducts are light weight, acid and alkali corrosion resistance, hot melt welding with PP electrodes, and easy processing and installation of fittings such as elbows, flanges, tees, and reducing diameters. It is currently the most widely used in waste gas treatment in the environmental protection industry.

polypropylene duct installation method

pp pipe socket connection, that is, a PP sleeve is welded at the end of each air duct to facilitate the insertion of the next air duct;
PP air duct and air duct flange connection, that is, a PP flange is welded at both ends of each air duct, and the screw-to-lock connection is used during installation.
The strengthening method of PP air duct, in industrial exhaust, in most cases, the end centrifugal fan is used to exhaust air, and the negative pressure is formed in the PP air duct, and the industry design specification stipulates the required wall thickness of the PP air duct at a certain wind speed. And the strengthening method, usually the PP air duct is reinforced by the outer flange, such as a 3-meter-long air duct, which is reinforced with 2 flanges, which is beautiful and durable. The large square air duct is reinforced by the outer flange, and the internal PP circular pipe is used for structural support.

polypropylene duct fresh air system structure

In order to form a complete PP anti-corrosion pipeline system, in addition to PP air ducts, it is not enough to have PP air duct accessories, which can be combined with the installation to form a complete anti-corrosion acid and alkali-resistant exhaust air pipeline system.

Poducts material :polypropylene

Contact email :Leyte@chian-xicheng.com

WhatsApp :+8619928762865 Sara 

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.

1. Insert type connection

The bayonet-type air duct is connected with the rectangular air duct, and different forms of bayonet are inserted into both ends of the air duct.

2. PP duct connection

Both ends of each pipe section are rolled into drum rods connected by bands, and one end is shrunk into a small opening. When installing, insert the small port into the large port according to the airflow direction. On the outside, fasten the drum rods at the two tube ends and connect with bolts, and the bolts are fixed and fastened to the earrings.

3. Hose connection

The hose connection is mainly used to connect the spiral air pipe and various components (such as the air outlet on the side of the static pressure box of the diffuser, etc.).

4. Insert and connect PP duct

Plug connection is mainly used for rectangular or circular duct connection. First make the connecting pipe, and then insert the connecting pipe into the air ducts on both sides. Then, tighten it with self-tapping screws or rivets. The pp duct is economical, and the thickness of the pp duct processing board can be reduced by 10%-15% under the same diameter. It reduces costs, and the efficiency during hoisting is about twice that of a rectangular pp duct. Under the same plate thickness and pipe diameter, the strength of the pp duct is higher. On the same cross-section, the spiral duct structure has more reasonable tension and better rigidity, so it can greatly reduce noise and vibration.

Knowledge of PP duct installation.

1. The distance between the boom and the end of the cross arm is 30mm; the distance between the boom and the outside of the wind pipe (the outer edge of the insulation layer) is 30mm.

2. When the length of the PP duct exceeds 20m, no less than one fixed bracket should be added. When the length of the PP duct exceeds 20m, an expansion joint should be added according to the design requirements.

3. The orientation of the channel steel head and angle steel of the support and hanger should only have two orientations (horizontal and longitudinal) in the same area. In addition, the spacing between the duct supports and hangers should be uniform and even, and supports and hangers should be added at both ends of the elbow.

4. Insulation wooden support should be added between the air-conditioning duct hoisting pipe and the support and hanger.

5. The position of the PP duct support and hanger should be accurate and the direction should be the same. The boom should be vertical and there should be no distortion. The suspended duct and parts should be set with fixed points for placing and swinging.

6. The paint on the boom should be even and the color should be the same. After the air duct is installed, repaint the anti-rust paint.

7. During installation, leave 5cm outside of the boom; after installation, heat preservation, suppression and other work are completed, after passing the inspection, cut the boom, and leave 2-3 buckles outside the nut.

8. The distance between the main duct hanger and the branch pipe should not be less than 200mm.