Related knowledge of tree protection

The tree guard, as its name suggests, is a kind of plate that covers trees, also known as tree scorpions. It can be seen on both sides of the city's path. Traditional tree guards are made of metal, such as steel grille guards, aluminum grille guards, and so on. Now, it has all been replaced by fiberglass tree guards. Why is it replaced? Let's compare the two. The tree guard, as its name suggests, is a kind of plate that covers trees, also known as tree scorpions. It can be seen on both sides of the city's path. Traditional tree guards are made of metal, such as steel grille guards, aluminum grille guards, and so on. Now, it has all been replaced by fiberglass tree guards. Why is it replaced? Let's compare the two.
Good aspects of FRP saplings and metal slabs 1. Performance Guard boards are exposed to moisture for a long time and belong to a chronic corrosive environment. The same ordinary steel grating plates use the interior in a humid environment for a long time. It will produce chemical sounds that can cause rust. It is largely low in its useful life, and the chemical response of the steel grid plate will also have a positive impact on the growth of the trees.
2. Placement aspect Steel grille is used as a tree guard. The placement is very poor. It is necessary to cut first, and the cutting is also very poor. It is necessary to carry out large-scale cutting operations. Steel grid plates are heavier, so they are poor to carry or place. FRP saplings are different, only a simple cutting can be used to cut, and the handling is also very convenient.
3. Tranquility Steel grille guard trees often produce stolen things, while FRP tree guards are different. The comprehensive performance of FRP tree guards is very good. The only drawback is that the cost of picking is small. This shortcoming has also become a benefit when used as a tree guard. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

Check valve is to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent the media back to the valve. Check valve is an automatic valve, its main role is to prevent media backflow, to prevent the pump and drive motor reversal, and the release of container media.

Material: Cast Iron, Ductile Iron

Type: Wafer, Flanged, Grooved

Standard: Class 250,200WOG .16Bar

Size: 2" to 24"

Application: Pipelines with Water, Oil, Gas.

All other details or types, please send free requirments.

1.Wafer Type:

Swing check valve wafer type