How do I read a WS-GM code?

WS-GM45-55: pit 400 mm wide × 500 mm long (4 and 5 dm), cover 55 mm high. The class (T-2 to T-25) is stated with the order.

Are the frames included?

Yes – every cover is supplied with its matching angle bedframe and anchor lugs, trial-fitted in the shop.

WS drainage pit covers – GM – US, AU & EU standards

The system

Grating pit covers are used on catch basins, sediment traps, drainage wells and sink holes in roads, parks, plants and civil projects. Each WS-GM set is a grating cover and an angle bedframe with anchor lugs; the type code gives the pit size in decimetres and the cover height – WS-GM45-55 is a 400 × 500 mm pit with a 55 mm cover.

Plan and section of a drainage pit cover in its bedframe — WS-GM drainage pit cover and bedframe.

Class T-25

WS-GM, class T-25
Pit W × L (mm)	Type	Grating b × a × h (mm)	kg	Bedframe b × a × h (mm)	Angle	Frame kg
300 × 400	WS-GM34-55	305 × 500 × 55	14.2	335 × 520 × 60	L60×5	7.6
400 × 400	WS-GM44-55	395 × 500 × 55	18.3	425 × 520 × 60	L60×5	8.5
500 × 400	WS-GM54-55	485 × 500 × 55	22.5	515 × 520 × 60	L60×5	9.3
300 × 500	WS-GM35-65	305 × 620 × 65	22.8	335 × 640 × 70	L70×5	9.4
400 × 500	WS-GM45-65	395 × 620 × 65	29.5	425 × 640 × 70	L70×5	10.4
500 × 500	WS-GM55-65	485 × 620 × 65	36.2	515 × 640 × 70	L70×5	11.4
300 × 600	WS-GM36-75	305 × 740 × 75	28.6	335 × 760 × 80	L80×5	11.5
400 × 600	WS-GM46-75	395 × 740 × 75	36.4	425 × 760 × 80	L80×5	12.6
500 × 600	WS-GM56-75	485 × 740 × 75	44.3	515 × 760 × 80	L80×5	13.7
500 × 700	WS-GM57-75	485 × 840 × 75	49.9	515 × 860 × 80	L80×5	14.5
700 × 700	WS-GM77-75	695 × 840 × 75	70.6	725 × 860 × 80	L80×5	17.1

Class T-20

WS-GM, class T-20
Pit W × L (mm)	Type	Grating b × a × h (mm)	kg	Bedframe b × a × h (mm)	Angle	Frame kg
300 × 400	WS-GM34-50	305 × 490 × 50	12.8	335 × 510 × 56	L56×6	7.7
400 × 400	WS-GM44-50	395 × 490 × 50	16.5	425 × 510 × 56	L56×6	8.6
500 × 400	WS-GM54-50	485 × 490 × 50	20.3	515 × 510 × 56	L56×6	9.5
300 × 500	WS-GM35-55	305 × 600 × 55	16.7	335 × 620 × 60	L60×5	8.2
400 × 500	WS-GM45-55	395 × 600 × 55	21.7	425 × 620 × 60	L60×5	9.0
500 × 500	WS-GM55-55	485 × 600 × 55	26.6	515 × 620 × 60	L60×5	9.8
300 × 600	WS-GM36-65	305 × 720 × 65	26.2	335 × 740 × 70	L70×5	10.8
500 × 600	WS-GM56-65	485 × 720 × 65	41.6	515 × 740 × 70	L70×5	13.1
600 × 600	WS-GM66-65	605 × 720 × 65	51.9	635 × 740 × 70	L70×5	14.6
500 × 700	WS-GM57-75	485 × 840 × 75	49.9	515 × 860 × 80	L80×5	14.5
700 × 700	WS-GM77-75	695 × 840 × 75	68.0	725 × 860 × 80	L80×5	17.1

Class T-14

WS-GM, class T-14
Pit W × L (mm)	Type	Grating b × a × h (mm)	kg	Bedframe b × a × h (mm)	Angle	Frame kg
300 × 400	WS-GM34-45	305 × 480 × 45	11.3	335 × 500 × 50	L50×5	6.5
400 × 400	WS-GM44-45	395 × 480 × 45	14.7	425 × 500 × 50	L50×5	7.2
500 × 400	WS-GM54-45	485 × 480 × 45	18.0	515 × 500 × 50	L50×5	7.8
300 × 500	WS-GM35-50	305 × 590 × 50	15.1	335 × 610 × 56	L56×6	8.2
400 × 500	WS-GM45-50	395 × 590 × 50	19.5	425 × 610 × 56	L56×6	9.2
500 × 500	WS-GM55-50	485 × 590 × 50	24.0	515 × 610 × 56	L56×6	10.1
300 × 600	WS-GM36-55	305 × 700 × 55	19.3	335 × 720 × 60	L60×5	8.7
400 × 600	WS-GM46-55	395 × 700 × 55	25.0	425 × 720 × 60	L60×5	9.6
500 × 600	WS-GM56-55	485 × 700 × 55	34.6	515 × 720 × 60	L60×5	10.4
600 × 600	WS-GM66-55	605 × 700 × 55	38.2	635 × 720 × 60	L60×5	11.5
500 × 700	WS-GM57-60	485 × 810 × 60	38.1	515 × 830 × 65	L65×5	12.7
700 × 700	WS-GM77-60	695 × 810 × 60	54.6	725 × 830 × 65	L65×5	15.2

Class T-2

WS-GM, class T-2
Pit W × L (mm)	Type	Grating b × a × h (mm)	kg	Bedframe b × a × h (mm)	Angle	Frame kg
300 × 400	WS-GM34-32	305 × 454 × 32	7.9	335 × 472 × 36	L36×4	4.4
400 × 400	WS-GM44-32	395 × 454 × 32	10.3	425 × 472 × 36	L36×4	4.8
500 × 400	WS-GM54-32	485 × 454 × 32	12.6	485 × 472 × 36	L36×4	5.0
300 × 500	WS-GM35-40	305 × 570 × 40	11.9	335 × 590 × 45	L45×5	5.9
400 × 500	WS-GM45-40	395 × 570 × 40	15.4	425 × 590 × 45	L45×5	6.5
500 × 500	WS-GM55-40	485 × 570 × 40	18.9	515 × 590 × 45	L45×5	7.2
300 × 600	WS-GM36-40	305 × 670 × 40	13.8	335 × 690 × 45	L45×5	6.3
400 × 600	WS-GM46-40	395 × 670 × 40	17.9	425 × 690 × 45	L45×5	6.9
500 × 600	WS-GM56-40	485 × 670 × 40	21.9	515 × 690 × 45	L45×5	7.5
600 × 600	WS-GM66-40	605 × 670 × 40	27.4	635 × 690 × 45	L45×5	8.3
500 × 700	WS-GM57-45	485 × 780 × 45	28.2	515 × 800 × 50	L50×5	8.6
700 × 700	WS-GM77-45	695 × 780 × 45	40.4	725 × 800 × 50	L50×5	10.2

Covers and bedframes are trial-fitted and supplied as matched sets. Other sizes, hinged and lockable covers are made to order.

Normes et exigences par marché

Les codes selon lesquels World Steel conçoit, fabrique et documente ce produit – et les principales exigences géométriques et de charge sur chaque marché.