D400 Strength for Hard Jobs
Gas stations and chemical plants need covers that provide a tight seal. The Heavy Duty Composite Manhole Covers are made for these applications. They have a D400 (40 ton) load rating. SMC sheet molding compound forms the main body. EN124-2015, GB/T23858-2009, and BSEN124-5 guide the product design and construction. They are suitable for demanding working conditions.
Sealed, Locked, and Built to Last
These heavy duty composite manhole covers feature a double-seal, air-tight structure and a locking system. They are suitable for city roads, gas stations, chemical plants, public pipe networks, telecom sites, and heavy infrastructure. High-temperature, high-pressure SMC molding forms the body. They weigh 50% less than cast iron. The double seal helps keep water out and air in. They are resistant to corrosion, chemicals, and UV light. The shape remains stable during use. The anti-static structure helps prevent static buildup. The locking system also helps reduce the risk of theft. The material does not rust, and the structure helps reduce noise. Service life is 30 years or more without maintenance.
Numbers You Can Check
Every key figure is listed in the table below. Use these specifications to select the right model.
|
Item |
Details |
|
Load rating |
D400 (40 tons) |
|
Material |
SMC sheet molding compound |
|
Standards |
EN124-2015, GB/T23858-2009, BSEN124-5 |
|
Spec ① 0977 |
Cover 0977, embed depth 50; frame 01065, frame height 100; clear opening Φ900 mm |
|
Spec ② 0760 |
Cover 0760, embed depth 70; frame 0865, frame height 110; clear opening Φ680 mm |
|
Spec ③ 0700 |
Cover 0700, embed depth 70; frame 0800, frame height 100; clear opening Φ630 mm |
|
Structure |
Double-seal, air-tight structure; locking system |
|
Use |
City roads, gas stations, chemical plants, public pipe networks, telecom, heavy infrastructure |
|
Features |
High-temperature, high-pressure SMC molding; 50% lighter than cast iron; double-seal water-tight and air-tight structure; corrosion resistant; chemical resistant; UV resistant; shape stable; anti-static; anti-theft; rust-free; noise reduction; 30+ years without maintenance |
Custom Work We Accept
Your technical drawing can be used for customized production, and your prototype can also be used as a production reference. The minimum order quantity is 100 sets. A sample can be sent before mass production. Sample lead time ranges from one week to one month, depending on the customization requirements. Different colors can be mixed within one order. Different models can also be mixed within one order. We pay more attention to the quantity of each individual model. Logo plates can also be mixed. A warranty is provided for this product, with the warranty period specified in the contract.
How We Hold Quality
A double-seal, air-tight structure assembly area is located inside our factory. Workers install the seal strips and check their positions. They also test the locking system and cover opening, as well as check the embed depth. These procedures help ensure reliable sealing performance. Gas stations and chemical plants can receive the air-tight performance required for their applications.
Questions Buyers Often Ask
Q: Which standards guide this cover?
A: EN124-2015, GB/T23858-2009, and BSEN124-5 guide its design and construction.
Q: How long does the cover last?
A: Service life is 30 years or more without maintenance.
Q: Does the cover seal tight?
A: Yes. The double-seal, air-tight structure helps keep water out and air in.
Q: Can a sample be sent before I order?
A: Yes. A sample can be sent before mass production.
If these Heavy Duty Composite Manhole Covers fit your project, contact us. A salesperson and a back-office worker will communicate with you directly. We can help you select the appropriate model and manage purchasing risks.
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