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square watertight manhole cover

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Quick details

· Shape: Square

· Material: Ductile Iron GJS500-7

· Duty Class: EN124 B125

· Frame Style: Bottom Flange

· Gasket Material: Neoprene

· Lock Material: SS304

· Coating: Black Bitumen

· Standard: EN124-2015

· Surface Pattern:Customized

· Surface text:Customized


How to Choose correct duty class?

Group 1 – minimum Class A15 – withstanding a 15kN test load. For use in areas where only pedestrians have access.

Group 2 – minimum Class B125 – withstanding a 125kN test load. For use in car parks and pedestrian areas where only occasional vehicular access is likely.

Group 3 – minimum Class C250 – withstanding a 250kN test load. For use in car parks, forecourts, industrial sites and areas with slow moving traffic also in highway locations up to 500mm from the kerb and up to 200mm into the verge, excluding motorways.

Group 4 – minimum Class D400 – withstanding a 400kN test load. For use in areas where cars and lorries have access, including carriageways, hard shoulders and pedestrian areas.

Group 5 – minimum Class E600 – withstanding a 600kN test load. For use in areas where high wheel loads are imposed such as loading areas, docks or aircraft pavements.

Group 6 – minimum Class F900 – withstanding a 900kN test load. For use in areas where particularly high wheel loads are imposed such as aircraft pavements.


Solid pattern:

A solid pattern is a model of the part as a single piece. It is the easiest to fabricate, but can cause some difficulties in making the mold. The parting line and runner system must be determined separately. Solid patterns are typically used for geometrically simple parts that are produced in low quantities.


Split pattern:

A split pattern models the part as two separate pieces that meet along the parting line of the mold. Using two separate pieces allows the mold cavities in the cope and drag to be made separately and the parting line is already determined. Split patterns are typically used for parts that are geometrically complex and are produced in moderate quantities.


We supply square watertight manhole cover

Located in China, We devoted ourselves to casting industry for many years,has been exporting to Europe and Australia since 2001.

We are expecting become your long team partner, OEM & OED is welcomed.

MaterialDuctile cast iron, grey cast iron, steel
SpecificationA15,B125,C250,D400,E600,F900
ProcessSand casting, Shell core casting
ApplicationSewer, Electronic, Sanitary, telecommunications, sewage, drainage, water, stormwater, fire protection & etc.
Casting Tolerance Min.0.05mm
Machining Tolerance Min.0.02mm
Surface TreatmentPainting, Powder coating, spraying, galvanization, chrome plating
Unit weight0.5kg~500kg
ApplicationSewer, Electronic, Sanitary, telecommunications, sewage, drainage, water, stormwater, fire protection & etc.
Technical SupportOwning experienced designing team
StandardISO, ASTM,JIS, ANSI, DIN, BS, GB
CertificationISO9001:2008
FeatureSingle Seal, Double Seal, Bolt Hinge, Removable Hinge, Lock Device, Spring Bar, Auto-locking Device, Safety-Design, Solid, Vent Cover, Lifting Key Hole, Rubber/PE Gasket, GRP Plate, Cut-Corner Design, single seal, double seal, hinge type, ventilated, watertight, airtight, and anti-theft & etc.


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