C250/D400/E600/F900 Waterproof Sealed Multiple Part Cover
Suitable for the following environments:1.Airports, ports
2.Rail
3.Power plants
4.Water treatment and purification plants
5.Manufacturing plants,lndustrial class
6.Special engineering projects: Exhibition center, leisure park.
The use of this product will not cause damage to the hidden works, debris, chemical corrosion, and to the greatest extent to ensure the unhindered use of the ground site.
1.Modular construction



A variety of specifications can be assembled using standard components.
The bottom frame components(bezel and baseplate) can be connected by latches and aluminum joints, allowing for longer channels to be laid when deployed linearly.
The modular unit is supported by a detachable stringer, which is suitable for the construction of large cavities.
2. Stability and tightness
The sides and seating surface of the manhole cover are machined so that the metal-to-metal joint surface tolerance is 0.2mm.
Stability: When installed correctly, the product will not shake when used in high-speed traffic, and it can prevent dust and debris from falling in.
Sealability: By adding a thin layer of grease to the contact surface between the machined manhole cover and the frame, the manhole cover system will not leak under normal conditions.
3.The surface appearance type of the product
The design of the product is suitable for a variety of different places, and the optional cover plate can meet the requirements of various specifications and appearance.

Conventional solid cover plate with non-slip surface
The performance of this cover plate is the same as that of concealed manhole cover plate, but lighter than that of cast-in-place concealed manhole cover plate.The installation cost is low, and the performance is not affected by the quality of poured concrete.

facilitate the pouring layer into the cover plate.
This form of cover plate is especially suitable for large cellar manhole covers and places with aesthetic requirements.
FLATWAY DRAINAGE TECHNOLOGY CO.,LTD.
Founded in 2011 in Shanghai, China, stands as a prominent domestic casting company, specializing in products tailored for the municipal drainage sector. With a rich history spanning two decades, our journey has been characterized by an unwavering commitment to service excellence and product quality.
From humble beginnings in manual molding, we have continually evolved to encompass cutting-edge technology. Today, we proudly own and operate two horizontal static pressure lines (1000*1000 and 1800*1300), alongside a vertical molding line (800*600). Our advanced facilities include fully automated pouring, painting, and powder coating lines. Our product portfolio encompasses a wide range, including municipal manhole covers, rain grates, fire hydrants, and fittings, carefully manufactured from various grades of gray iron, ductile iron, and aluminum alloy. All of our products are comply with BS En 124, En545, En598 etc. Each product is a testament to our relentless pursuit of quality, ensuring longevity and reliability, even in demanding conditions.
With more than 12 years of OEM export experience, we have garnered trust and partnerships with esteemed municipal pipeline suppliers across Europe, America, the Middle East, and Australia, including renowned industry leaders such as Zurn and Durham,Etilalat. Our involvement in critical domestic projects like Shanghai Disneyland, Beijing Universal Studios, the Hong Kong-Zhuhai-Macao Bridge, and Hong Kong Airport's third runway further underscores our commitment to delivering excellence on both local and global scales.
At FLATWAY, our unwavering mission centers on delivering exceptional service and upholding the highest standards of product quality. We are dedicated to continuing this legacy, providing solutions that set industry benchmarks and forging lasting partnerships with our valued customers.