PP pipe anti-acid – XICHENG PP DUCT https://plastic-duct.com Polypropylene PP air duct manufacturers Mon, 28 Feb 2022 08:04:45 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://i0.wp.com/plastic-duct.com/wp-content/uploads/2022/03/cropped-xicheng-logo.png?fit=32%2C32&ssl=1 PP pipe anti-acid – XICHENG PP DUCT https://plastic-duct.com 32 32 203419415 High Pressure Plastic Pipe/Pp Pipe/Pvc Pipe| Xicheng https://plastic-duct.com/product/high-pressure-plastic-pipe-pp-pipe-pvc-pipe-xicheng/?utm_source=rss&utm_medium=rss&utm_campaign=high-pressure-plastic-pipe-pp-pipe-pvc-pipe-xicheng Mon, 28 Feb 2022 08:04:14 +0000 https://plastic-duct.com/?post_type=product&p=74 The square PP air duct is also called polypropylene plastic air duct, which is used for exhaust gas exhaust in the laboratory. The square PP duct is usually used as the main duct and branch duct with the PP circular duct. The square PP air duct is made of PP sheet through a bending machine, four times of 90-degree elbows, and then hot-melt welding. There are many processes. Compared with square pipes, the price of square pipes is higher for round pipes with the same circumference or cross-section. Of course, it also depends on the wall thickness of the square PP duct and whether it is reinforced by the outer flange.

]]> 74 Flame Retardant Polypropylene Ventilation Pipe for Industrial Factory| Xicheng https://plastic-duct.com/product/flame-retardant-polypropylene-ventilation-pipe-for-industrial-factory-xicheng/?utm_source=rss&utm_medium=rss&utm_campaign=flame-retardant-polypropylene-ventilation-pipe-for-industrial-factory-xicheng Mon, 28 Feb 2022 08:04:13 +0000 https://plastic-duct.com/?post_type=product&p=56 Square PP duct connection method

Socket connection, that is, a PP sleeve is welded at the end of each section of the air pipe to facilitate the insertion of the next section of the air pipe;

Flange connection, that is, a PP flange is welded at both ends of each section of the air pipe, and the screw-to-lock connection is used during installation.

Convenient production, welding method for installation, firm, square PP duct flange connection, round and square can be customized

Need to splice flange, easy installation, screw lock, easy to disassemble and maintain

How to strengthen the square PP duct

In industrial exhaust, in most cases, the end centrifugal fan is used to extract the air. The pipeline forms a negative pressure. The industry design specification stipulates the wall thickness and strengthening method of the square PP duct at a certain wind speed. Usually, the square PP While the large square air duct is reinforced with outer flanges, the inner part is supported by PP circular pipes.

Precautions for ordering square PP duct

]]> 56 Hot sale PVC/ PP ventilation duct plastic pipe| Xicheng https://plastic-duct.com/product/hot-sale-pvc-pp-ventilation-duct-plastic-pipe-xicheng/?utm_source=rss&utm_medium=rss&utm_campaign=hot-sale-pvc-pp-ventilation-duct-plastic-pipe-xicheng Mon, 28 Feb 2022 08:04:13 +0000 https://plastic-duct.com/?post_type=product&p=66 Square PP duct connection method

Socket connection, that is, a PP sleeve is welded at the end of each section of the air pipe to facilitate the insertion of the next section of the air pipe;

Flange connection, that is, a PP flange is welded at both ends of each section of the air pipe, and the screw-to-lock connection is used during installation.

Convenient production, welding method for installation, firm, square PP duct flange connection, round and square can be customized

Need to splice flange, easy installation, screw lock, easy to disassemble and maintain

How to strengthen the square PP duct

In industrial exhaust, in most cases, the end centrifugal fan is used to extract the air. The pipeline forms a negative pressure. The industry design specification stipulates the wall thickness and strengthening method of the square PP duct at a certain wind speed. Usually, the square PP While the large square air duct is reinforced with outer flanges, the inner part is supported by PP circular pipes.

Precautions for ordering square PP duct

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