1.full range in type and dimention 2.applicable steel equipment 3.excellent quality of steel grating 4.reasonable price

Drain Cover

Detail description of stair tread

Plain steel grating is one of the most widely used steel gratings, the bearing bar comes in the form of a plain surface flat bar commonly used for platforms, trench gratings and stair treats.

Features.

1>     Bearing bar specification:20×3 to 100×6

2>     Bearing bar pitch:12.5,15,25,30,40,60mm etc. also be according to clients requirement and 30,40,60mm are recommended

3>     Cross bar pitch:38,50,76,100mm,also be according to clients requirement and 50,100mm are recommended.

4>     The Maximum length of black panel is 7350mm

5>     Materials:mild steel or stainless steel

6>     Surface treatment:untreated,painting or hot dip galvanizing

7>     Steel grating with America standard can also be fabricated

Guide to Selection of steel Grid Plate

Light  &  Medium Duty                                                  Maximum recommended spans(mm)

Load bar size(mm)	Maintenance floors no public use UDL=2.5kPa			Pedestrain traffic public, residential and light use UDL=3kPa			Pedestrain traffic publicommercial and crowd use USD=4kPa
	Deflection=5mm			Deflection=5mm			Deflection=5mm
	Beflection bar pith(mm)			Beflection bar pith (mm)			Beflection bar pith (mm)
	30	40	60	30	40	60	30	40	60
20 x 3	1190	1110	1000	1140	1060	960	1060	980	890
25 x 3	1410	1310	1180	1350	1250	1130	1250	1170	1050
32 x 3	1700	1580	1430	1620	1510	1360	1510	1400	1270
40 x 3	2010	1870	1690	1920	1780	1610	1780	1660	1500
20 x 5	1350	1260	1140	1290	1200	1090	1200	1120	1010
25 x 5	1600	1490	1350	1530	1420	1290	1420	1320	1200
32 x 5	1930	1790	1620	1840	1710	1550	1710	1590	1440
40 x 5	2280	2120	1920	2180	2030	1830	2030	1890	1700

Drain Cover