What is a rainwater grate, and the specifications and dimensions of the rainwater grate

Rainwater grate: The rainwater grate is welded by flat steel and twisted square steel or flat steel and flat steel. The rainwater grate has the advantages of beautiful appearance, best drainage, high strength, many specifications and low cost, so it usually uses steel grating rainwater grate.

With the development of science and technology, resin or plastic steel bars are used to make reinforcements and inorganic fillers to form a new composite water grate, which has the advantage that its weight is lighter than that of cast iron water grate, and the cost is low, and the disadvantage is that the strength is not as high as that of cast iron water grate.

Specifications: Steel grating rainwater grates are available in a variety of models to suit different span loads and requirements. The material is usually Q235 or 304.

Size selection: 1) The direction of the flat steel is the load-bearing (support) direction, and the length of the flat steel is determined according to the width of the ditch (well).

2) According to the groove length, take the standard plate width of 995mm in line with the processing module, and leave a gap of 5mm between the plates.

3) The length of the ditch (well) is less than 1 meter, and the part is determined by the modulus.

4) Select the type of steel grating plate according to the width of the ditch (well) and the bearing requirements.

5) It is recommended to choose the standard size for design and construction, and our company can design and produce various sizes or other functions according to user requirements.

Classification: Ordinary rainwater grate: It is a steel grating.

Tubular rainwater grate: It is a steel grating that is edged with a steel pipe.

U-shaped rainwater grate: it is a steel grating with angle steel edging.

Anti-theft rainwater grate: It is to live the angle steel frame in the reinforced concrete, and then put the steel grating into the angle steel frame.

It is usually recommended that you use an anti-theft rainwater grate.

The rainwater grate is the mouth of the sewer to prevent garbage from flowing into the sewer. There are two kinds of rainwater grate cement products and iron products, most of the cement products are used on the market at present, which are both beautiful and reduce the cost, and pay attention to Jining Jintai cement products in detail.

The roadside drain is a square, transparent iron cover.

The water grate generally refers to the rainwater grate.

It is welded by flat steel and twisted square steel or flat steel and flat steel bar. The rainwater grate has the advantages of beautiful appearance, best drainage, high strength, many specifications and low cost, so it usually uses steel grating rainwater grate.

With the development of science and technology, resin or plastic steel bars are used to make reinforcements and inorganic fillers to form a new composite grate, which has the advantage of being lighter than the cast iron grate, and the cost is low, and the disadvantage is that the strength is not as high as the cast iron grate.

Performance characteristics of cast iron grate.

1. High strength: magnesite inspection, with high compressive, bending and impact strength, and toughness. After long-term use, the product will not be crushed and damaged by the manhole cover, which can completely eliminate the occurrence of "urban black hole" accidents.

2. Beautiful appearance: the surface pattern design of magnesite inspection manhole cover is exquisite, and the color is bright and adjustable, beautifying the urban environment.

3. Easy to use and light weight: the weight of the product is only about one-third of that of cast iron, which is easy to transport, install and repair, and greatly reduces labor intensity.

4. Anti-theft: magnesite inspection manhole cover has no value, natural anti-theft; According to the needs of customers, it is equipped with a locking structure to realize the anti-theft of property in the well.

5. Strong weather resistance: magnesite inspection manhole cover can be used normally in a 50 +300 environment through scientific formula, advanced technology and perfect technical equipment.

6. Acid and alkali resistance, corrosion resistance, wear resistance, vehicle rolling resistance, long service life.

It can not only allow water to flow smoothly into the sewer diversion tank, but also filter sewage, and ensure the passage and safety of people or vehicles.

A cover that acts as a filter at the entrance to the sewer.

The specifications of the rainwater grate are generally 30cm 50cm, 40cm 50cm, 40cm 60cm, 50cm 50cm and other specifications according to the length and width. The thickness of the cast iron and stainless steel grate is 2cm, 3cm, 4cm, etc., and the thickness of the FRP grate is 5cm, etc.

Rainwater grates are generally welded from flat bars and twisted square bars or flat bars and flat bars. The common styles of rainwater grates include set grate, single grate, double grate, triple grate, etc.

The rainwater grate has the advantages of beautiful appearance, best drainage, high strength, many specifications and low cost, so it usually uses steel grating rainwater grate.

The common classification of rainwater grates is ordinary rainwater grate, tubular rainwater grate, U-shaped rainwater grate and anti-theft rainwater grate.

Rainwater grate, first of all, the size is very much, in addition to the different load-bearing, therefore, the specifications of the manhole cover are also different, such as the type of rainwater grate of Hunan Zhenjin, which can be divided into the following categories:

Heavy-duty rainwater grate (scale above 500mm): It is more suitable for urban main roads and fast lanes.

Ordinary rainwater grate (scale 300-500mm): more suitable for urban roads.

Motor lanes and residential complexes.

Light rainwater grate (scale less than 300mm): more suitable for non-motorized roads.

Green belts as well as park areas.

There are many wallpaper specifications, first of all, the size or paper removal are different.

25~50m

According to the form, number and deployment of stormwater outlets, the flow rate generated by the catchment area, the discharge capacity of stormwater outlets and the form of roads should be established. The spacing between stormwater outlets should be 25 50m. The number of connection string rainwater outlets should not exceed 3, and the length of rainwater outlet connection should not exceed 25m

When the longitudinal slope of the road is larger, the spacing of the stormwater inlets can be greater than 50m, and its form, number and deployment should be established according to the detailed conditions and calculations. When the slope section is short, water can be collected at the lowest point, and the number or area of the stormwater outlets should be suitable for addition.

The depth of the rainwater inlet should not be greater than 1m, and the sedimentation tank should be set according to the need. When shallow burial is required under special circumstances, reinforcement measures should be taken. The depth of stormwater inlets in areas affected by frost heave can be established based on local experience.

Ductile iron grate is anti-smashing, pressure-resistant and high-strength.

Ductile iron is generally required.