Knowledge

Specification for production and installation acceptance of ventilation ducts...

The pipes and fittings from the first closed valve to the project mouth should be welded with steel plates with a thickness of 2 to 3 mm. The weld seam should be full, uniform and tight.

How to improve the performance of galvanized air duct?

​Since the galvanized air duct does not have good silencing performance when used, we need to add a muffler to the air duct, and its thermal conductivity is too large, so it has no thermal insulation

What problems should be paid attention to during the use of spiral duct?

​Spiral ducts cannot be placed directly on the rock or concrete foundation bed. Because of the too rigid support, they will not only reduce the outstanding flexibility of the pipe wall itself, but als

Preparation work for stainless steel duct insulation construction

Make sure that the construction foundation for the upper pipe, electrical equipment, and fire protection of the stainless steel air pipe is completed to prevent many cross operations from destroying t

Does the price of steel raw materials affect the price of air ducts?

The common plate flanges and angle steel flanges of air ducts can be automatically formed and automatically bent into "L", "U" and "mouth" air ducts. After processing, th

Spiral duct machine standard

When designing the spiral duct, according to conditions such as noise, material, energy consumption, installation space, wind speed within the allowable range, etc.; avoid sudden changes in wind speed

What should I do if the spiral duct machine bites and deviates?

How does a spiral duct machine bite and how does it work? The diameter of the circular duct (excluding the spiral duct) is greater than or equal to, and the pipe part is greater than or the total surf

The benefits of spiral duct machine

1) Good product matching and high degree of standardization; 2) Strong airtightness; 3) The ventilation loss is small; the ventilation noise is small, and the round pipe is better than the square pipe

Application of spiral duct machine

The spiral air duct is a thin-walled pipe made of a spiral bite made of metal strips. It is round, without welding, air leakage and water leakage. It is mostly used for air supply and bulk material tr

What is a spiral duct machine

Spiral duct machine is a machine for producing spiral ducts. Spiral air duct, also known as spiral bite seam thin-walled pipe, was first used in the military industry of Western countries, such as war

Install and use spiral duct to save money

In order to save labor and raw materials, the construction unit can calculate the spiral air ducts of various specifications and models, and when dividing by the length of the ventilation air duct, pa

Square tube bearing capacity calculation formula

When calculating the bearing capacity of the square pipe, it is necessary to comprehensively consider the specification, material, span and strength of the square pipe. Here, we need to clarify what i