Home / Greenhouse Pipe
At present, the following main materials are commonly used in regular greenhouse greenhouses:
1. Pipe Information
Shape: square tube, circular tube, elliptical tube, and cross shaped steel
Material: Most domestic steel pipes are internally made of steel and externally hot-dip galvanized
Galvanized steel pipes: divided into hot-dip galvanized standard pipes (national standard pipes) and galvanized coil pipes (with pipes)
Hot dip galvanized standard pipe: national standard black pipe+hot-dip galvanized
Galvanized strip pipe: galvanized sheet rolled and welded into shape
2. The Respective Uses Of Steel Pipes For Greenhouse Structures
1.Square tube: Generally used on the pillars of intelligent greenhouses, this type of square tube is generally 70 * 50, 50 * 100, 100 * 100, 120 * 120, 150 * 150 or other larger specifications. Smaller square tubes such as 50 * 50 are used on the horizontal rod of the greenhouse.
2.Circular tube: A frame (column, inclined beam, longitudinal tie rod) used to build a greenhouse, or a secondary load-bearing structure that transmits force to the main load-bearing structure after being subjected to force. It is the skeleton of a greenhouse, and common models are generally φ 25 φ 32 φ 48 φ 60.
3.Elliptical tube: Elliptical tube is a new product launched in recent years. Compared to circular tubes, it has particularly good pressure resistance. However, due to the fact that existing elliptical tubes are made of galvanized tape, their anti-corrosion performance is inferior to that of circular tubes, and they are only selected in a few regions. Elliptical tubes are generally made by flattening and bending hot-dip galvanized square tubes.
4.Cross shaped steel: It is commonly used on the top of intelligent greenhouses to form a cross shaped steel skeleton. The advantage is low cost, but compared to square tubes, it has poorer stability. Mainly used in areas with low stress and anti-corrosion requirements.
5.Steel pipe wall thickness: ordinary planting shed, round pipe φ 25 φ 32 is the main structure, with a thickness mostly ranging from 1.5 to 2.75mm
Ordinary breeding shed, elliptical tube 25 × 50mm, 30 × 60mm, 30 × 70mm, 30 × 80mm, 40 × 80mm
3. Advantage Of Greenhouse Steel Pipes Produced By Yuantai Derun
Corrosion Resistance
Due to the long-term use of greenhouses, greenhouse pipes must be able to withstand the erosion of various corrosive substances, such as rainwater, fertilizers, pesticides, etc.
2. High Strength
Greenhouse pipes need to withstand natural disasters such as strong winds and snow, so they need to have high strength and load-bearing capacity.
3. Good Temperature Adaptability
Yuantai Derun's greenhouse pipes have excellent temperature adaptability. Our greenhouse pipes can adapt to the tropical desert climate of Egypt and the cold climate of the Far East. In order to maintain the growth environment and quality of vegetables, greenhouse pipes need to have good temperature adaptability to ensure stable support and long-term service life of the greenhouse.
4. Easy To Install
The installation of greenhouse pipes needs to be simple and fast, and farmers only need to watch the installation video to carry out the installation operation themselves, making it convenient for farmers to build and maintain.
4. Types Of Greenhouse Pipes:
1.75" square galvanized steel tubing 14 gauge
1.5" square galvanized steel tubing 16 gauge
1.9" round 13 gauge galvanized steel tubing
1.315" round 16 gauge galvanized steel tubing
5. Process Description Of Galvanized Steel Pipe
1) Hanging plating: also known as hanging plating, it has the best quality, the highest amount of zinc applied, and the strongest anti-corrosion ability. The process roughly involves pickling the steel pipe, removing impurities from it, and immersing the entire steel pipe in a zinc pool. After several lifting cycles of more than ten seconds, it is taken out and cooled down. The zinc content on the steel pipe of the hanging zinc process reaches 400-600 grams, and the service life of the hanging galvanized steel pipe is 30 years. Currently, a large number of hanging galvanized steel pipes are used in national major projects such as steel, high-speed rail, and infrastructure. The galvanizing process is used for large parts in greenhouses, such as trusses and brackets.
2) Blow plating: It also requires acid washing and soaking in a zinc bath, but after lifting it up, it will go through a device to remove excess zinc before it is fully attached to the steel pipe. However, the amount of zinc added is slightly lower, with the current standard of around 200 grams, which is nearly twice the amount of zinc added compared to the hanging zinc process. This process has a low cost of steel pipes, a service life of 15-20 years, and high cost-effectiveness, As a commonly used galvanizing process.
3) Galvanized strip: pre coated with steel raw materials, then made into pipes, with low galvanizing amount and poor anti-corrosion ability. The amount of galvanizing is 50 grams per square meter, which will rust in 2-3 years. It is not recommended to use it in greenhouses.
4) Plastic coating: This process is a process that continues to increase corrosion resistance by coating the galvanized pipe with plastic after the completion of hot galvanizing. However, the average cost per ton of steel will increase by about 2000 yuan, which has not been used in greenhouse engineering due to its high cost.
6. How To Identify The Quality Of Steel Pipes With The Naked Eye
Mainly identify the anti-corrosion of the surface
Hanging plating: Due to the thickness of the galvanized layer, the color is slightly darker than that of blowing plating and tape plating;
Galvanized strip: The zinc content is low, and the newly produced surface is bright, and after a period of time, it will show a bit of black. Secondly, professional equipment can use a zinc layer measuring instrument for professional measurements.
7. Greenhouse Steel Pipe Production Cycle
If there are steel pipes in stock, there is no need for a production cycle. If there is a large quantity, please provide a production cycle of 3-7 days in advance.
8. Greenhouse Steel Pipe Transportation Cycle
To South Africa: 45 days
To the Middle East: 30 days
To South America: 45 days
To North America: 30 days
To Russia: 7 days
To Europe: 45 days
To Korea: 5 days
To Japan: 5 days
To Vietnam: 15 days
To Thailand: 15 days
To India: 30 days
To Indonesia: 15 days
To Singapore: 15 days
9. Application Engineering Cases
Project name:Egypt Million Ferdan Land Improvement Project
Supplied products:Square steel pipe, circular steel pipe
Supply quantity: 70000 tons
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Yuantai team has over 21 years of experience in steel pipe project applications, specializing in the production, manufacturing, and customization of square rectangular, and circular steel pipes. Warmly welcome project procurement managers, individual owners, designers, and overall sellers, etc. Write down your requirements and receive professional quotes and technical support.
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