Trench Cover-Steel Grates For Drainage Manufacturer

The grid design of Trench Cover (Steel Grates For Drainage) makes the water flow unobstructed, effectively avoiding the problem of ponding, and can quickly drain even in rainstorm weather.

The grid design of Trench Cover makes the water flow unobstructed, effectively avoiding the problem of ponding, and can quickly drain even in rainstorm weather.

Our services

★ Competitive price and quality from our own factory
★ 20+ years service life

★ CE MTC ISO9001

★ Flexible payment with T/T,L/C , paypal, etc

★ Quick delivery and standard exporting package

★ OEM/ODM

★ Moq:1 ton

Introduction Of trench cover

The grid design of Trench Cover (Steel Grates For Drainage) makes the water flow unobstructed, effectively avoiding the problem of ponding, and can quickly drain even in rainstorm weather.

After hot-dip galvanizing treatment, Trench Cover has excellent corrosion resistance and can maintain its service life even in long-term exposure to rainwater or corrosive substances.

Trench Cover is suitable for different environments and requirements, such as flat, anti slip, heavy and super heavy, etc.  The installation methods include GT type, GU type, GM type, GF type, etc.

Classification of trench covers

Generally, we can classify trench covers into hot-dip galvanized trench covers, stainless steel trench covers, powder-coated trench covers, etc., based on the different materials used in their production.

2. According to the shape of the trench covers, they can be classified as: ordinary trench covers, U-shaped trench covers, pipe-shaped trench covers and openable trench covers.

Size of trench cover

◆ The direction of the flat steel of the trench cover is the load-bearing (supporting) direction. The length L of the flat steel is determined by leaving a gap according to the width of the trench (well)

◆ Layout according to the length of the trench (well), take the standard plate width of 995mm that conforms to the processing module, and leave a gap of 5mm between the plates.

◆ For the remaining part of the trench (well) that is less than 1 meter long, the dimensions are determined by the module.

◆ Select the model of steel grating based on the width of the trench (well) and the load-bearing requirements.

◆ It is recommended to choose standard-sized trench covers for design and construction. Other specifications can be customized.

Characteristics of trench covers

◆ Attractive appearance: Simple lines, silver surface, modern and trendy.

◆ Optimal drainage: The leakage area reaches 83.3%, which is more than twice that of cast iron.

◆ Hot-dip galvanizing: Strong rust resistance, maintenance-free and no need for replacement.

◆ Anti-theft design: The cover and frame are connected by hinges, which is anti-theft, safe and easy to open.

◆ Save investment: When used for large spans and heavy loads, it is cheaper than cast iron and saves the cost of theft or crushing and replacement.

◆ High strength: Its strength and toughness are far superior to those of cast iron, making it suitable for large-span and heavy-load environments such as docks and airports.

◆ Multiple specifications: Meeting the requirements of different environments, loads, spans, sizes and shapes.

This product is easy to install, lightweight, has good load-bearing capacity, is impact-resistant, bends rather than breaks, has a large drainage volume, and is beautiful, durable and anti-corrosive after hot-dip galvanizing treatment. It has advantages that cast iron covers cannot match. It is convenient to open by means of hinge connection or hook connection, etc., and has anti-theft function.

Selection of trench cover size

1. For steel gratings used on sidewalks, carriageways, parking lots, and trench covers for docks or building floors on traffic roads, due to the differences in loads and vehicle directions, their design and selection should take into account the actual situation.

2. When used for water channels and cross-cut trench covers on roads (where the direction of vehicle travel is parallel to the direction of the load-bearing flat steel), not only wheel pressure and impact must be taken into account, but also the risk of the trench cover jumping and shifting must be prevented. The trench cover must be fixed to the Angle steel and support beams (welding or steel grating installation clips can be used for fixation).

Load weight selection

1. Light type: 25 tons per square meter; Campus residential areas for small cars and pedestrians, parks, underground parking lots and kitchens, etc

2. Heavy-duty: 70 tons per square meter; Factory areas, general roads, main roads, parking lots and streets where vehicles weighing less than 20 tons can pass

3. Super heavy-duty: 140 tons per square meter; Main roads for heavy-duty trailers, container forklifts, cranes and aircraft, extra-large parking lots, mines, docks and airports, etc.