SPECIAL GRATING PANEL

Special Grating Panel

Compound Steel Grating

1. Compund steel grating is composed of chequered plate on sealed surface & steel grating with certain spanning capability.

2. Compound steel grating is formed of any type of steel grating and chequered plate in different thicknesses. The grating of JG323/40/100, JG253/30/100 or JG323/60/100 is generally used as support plate & the chequered plate with 3mm thickness is used as upper plate, while the plate of 4mm, 5mm or 6mm thickness may also be used based on customers’ requirements.

3. As thermal stress may produce shape distortion for compound steel grating after hot-dip galvaning treatment, especially when choosing large spacing grating, it’s not easy to make it smooth. So attention should be paid when choosing grating types.

Sign of Stair Tread

Dratnage Pit / Trench Cover

1. Grating trench cover used in walkway, carriageway, courtyard or other constructions. Used as cover for drainage trench, wireway, subway, air pit, etc. Hot-dip-galvanizing for surface treatment.

2. Grating trench cover composed by fixed fram & removable grating cover. It can be noted as GT & GU in terms of their different structures.

3. Grating pit cover used in catch basin, sand sediment trap, draining well, & sink hole for road, park & other civil projects. It’s generally designed as the evertile & its start-stop angle is 110°. The grating with pin joint is not only good to guard against theft but also simplify the construction procedure.

Class of Loading for Drainage Trench/Pit Cover

Class of Load	Fully Laden(kg)	Back Single-wheel Load(KN)	Wheel-pressure Area a×b (mm2)
T-25	25,000	100	200×500
T-20	20,000	80	200×500
T-14	14,000	56	200×500
T-6	6,000	24	200×240
T-2	2,000	8	200×160

GU Trench Cover

Refer to most oral groove without edge made by concrete, it would be most simple & saving, so that it’s no need to make a special groove of trench.The angle steel is suggested to be built in the top edge of trench as the load is in the range between T-6 to T-14. The prefab building blocks of GU trench cover is also available for making the trench which can prevent dirty water to leak into the earth. But GU trench cover just suitable for side ditch when a car or truck need to cross it.

GM Drainage Pit Cover

GM drainage pit cover generally made of the grating with 50mm of cross bar pitch to enhance the resistance of impact.

GT Trench Cover

1.GT trench cover suitable for all thoes roads, of which are not crowded, excluding highway. Avoiding the danger aring from unclosing, so screw should be used for fixing.
2.JGxxx/30/100 generally adopted, & other types of gratings should also be available. The grating with 50mm of cross bar suitable for thoes trench covers used in public place. If the serrated & the I-bar needed, it should be subject to final decision made by suppiler & buyer.

Nre Product Display


FENCE	ANTIDINIC STEEL GRATING	ROTATING STEP

SAFETY STEEL GRATING	ROUND ROD STEEL GRATING	ANTI-HEEL GRATING

HEAVY DUTY GRATING	I BAR GRATING	STAINLESS STEEL GRATING

ROUND BAR LOCK TYPE STEEL GRATING	MANHOLE COVERS