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  • Grainage Trench Box Grate witout hinge Connection
  • Grainage Trench Box Grate witout hinge Connection
  • Grainage Trench Box Grate witout hinge Connection
  • Grainage Trench Box Grate witout hinge Connection

Grainage Trench Box Grate witout hinge Connection

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GratingStandardMaterial StandardHDGStandardHandrail Standard
YB/T4001-2007GB704-88GB/T13912-924053.3-93
ANSI/NAAMMASTM (A36)ASTM (A123)
BS4592-1995BS4360 (43A)BS729BS6399/BS6180
AS1657-1992AS3679AS16501650-1985


NoItemDescription trench drain grating cover 
1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm
2Bear bar pitch12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16",  1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc.
3Cross bar pitch30.38.1, 40,50, 60,76,100,101.6mm
4MaterialQ235, Q235, A36, SS304,SS316,
5Surface treatmentBlack, hot dipped galvanizing, painting 


Steel trench cover is made by bearing bar and cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder welded by cutting, incision, opening, overlock process such as processing and into customer requirements finished products.

ItemsFeatures
1Good appearance: simple line, silvery surface, modern design.
2Optimized drainage effect: water leakage area upto to 83.3% which is twice of the iron castings.
3HDG: superior rust protection, free of maintenance and replacement. 
4Anti-theft design: Covers and frames are connected by hinges providing safe and convenient application
5Save project investment: lower price and lower maintenance cost compared to iron castings.
6High strength: higher strength and durability than iron castings, suitable for using in larger spacing and heavier loading conditions such as the docks and airports.
7They are available in various types to satisfy the need for different environment, loading, spacing, and configuration.


Grainage Trench Box Grate witout hinge Connection