40x5, 25x5, 32x5, 25x3, 30x3 galvanized trench drain grating cover prices

 

 

HAIAO Wire Mesh Product Co.,Ltd is a company engaged in production and exportation of  trench drain grating cover, metal wire mesh, fencing, steel grating products .Our high grade protective steel grating has been sold to over 80 countries and regions in Europe,America,Africa,middle East and Asia.  we have developed into a famous enterprise in wire mesh business.

 

 

 

 1.Introduction of trench drain grating cover prices

1>Material :Mild steel & Low carbon steel, etc.

2>Surface process: hot-dipped galvanized ,electro-galvanized and spraying and soaking.

3>Trench drain grating cover is made by the world first-class equipment,which can arrange the bearing bar and cross bar in longitude and latitude order to certain distance.cross bar is pressed into the bearing bar by high tension resistance weldingring which is controlled by we can produce high quality gratings with firm welding,smooth surface and high strength.

4>Surface process of trench drain grating cover : there are three types:hot-dipped galvanized ,electro-galvanized and spraying brushing and soaking.anti-acid and alkali corrosion capacity the range PH6 to PH12.5,a stable protective film will be formed on the zinc surface.it has good anti-corrosive property. 

 

2.Specification of trench drain grating cover

1>Shape of bearing bar: plain or serrated  type.

2>Bearing Bar Pitch (center to center):according to client's requirement and 30, 40, 60mm are recommended.
3>Bearing Bar (Load Bar) Specifications (mm):The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10.

4>Cross bar pitch :38.1, 40, 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc.

 

3.Manufacturing factory of  trench drain grating cover

We have our own factory,we can ensure the quality and the competitive price,and we can manufacturer any kinds of specification as your demand.

 

Galvanized process of trench drain grating cover

 4.Standards of   trench drain grating cover

 

	Steel grating standard	Steel standard	Galvanizing standard
China standard	YB/T 4001.1-2007	GB700-88	GB/T13912-2002
USA standard	ANSI/NAAMM(MBG531)	ASTM(A36)	ASTM(A123)
U.K. standard	BS4592	BS4360(43A)	BS729
Australia standard	AS1657	AS3679	AS1650

 

 5.ISO certification of trench drain grating cover

6.Tolerance of trench drain grating cover

The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm. 
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar. 
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm. 

7.The application of trench drain grating cover

 

 

 

 

 

 

 

8.   trench drain grating cover feature

 

(1)Attractive appearance:Simple outline.silver colour,and modern.

 

(2)Optimum water draining:Water leakage area reaches 83.3%,which is more than two times larger  than that of cast iron.

 

(3)Hot-dip galvanizing:Good antirust performance,maintenance free and replacement free.

 

(4)Design of preventing theft:The cover is connected with the frame by gemel,which ensures protection against theft,safety,and convenient opening.

 

(5)Saving investment:With large span,the cost is lower than that of cast iron when under heavy load.And the replacement expenses in case of theft and crushing will be saved.

 

(6)High strength:With strength:With strength and toughness far higher than those of cast iron,it can be used in the environment with large span  and heavy load,such as the wharf and the airport.

 

(7)Many specifications available: The requirement of different environments,loads,spans,sizes and shapes can be satisfied.

 

 

 

 Why choose Haiao ?

 

1)We have a standard manufacturing line and a complete quality ensuring system for high quality trench drain grating cover reaching your  requirements.

 

2)We own most advanced production equipments.The CNC press-welding mechine is controled by computers.

 

3)We have more than ten years experience about manufacturing and exporting.

 

4)We own more than ten senior engineers,they can promise our product technology in the industry in a leading level.

 

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