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  Deformation resistance and bearing capacity

  By improving the mechanical properties of the material and optimizing the structural design, the manhole cover and the well seat have a high degree of fit, a stable structure, and small deformation. The product will not produce deformation, displacement, or cracking during installation and use.
  BETTER COVER's independently developed SMC composite material has high density, low water absorption (0.15mg) and good waterproof properties.
  At the same time, the design of the sealing ring and structure achieves good sealing performance.

  
  

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  Strong corrosion resistance Some sewer covers may corrode due to exposure to hydrogen sulfide gas, water and salt, which may lead to cover failure in harsh environments.
  Fat, oil and grease (FOG) in the oil separator can also lead to serious H2S production. H2S is converted into sulfuric acid by bacteria in the sewer system. The well cover materials BETTER COVER use will not change the structure or performance of the materials if they are used underground or in oil and gas environment for a long time. Strong even when exposed to corrosive environment.Service life exceeds 30 years.
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  Light weight and reduced risk Bridge structure design:Enhance compression resistance→ thereby achieving product lightweight.
  BETTER COVER composite manhole cover is 1 / 4 of that of traditional manhole cover with the same volume, which can reduce the risk of back injury.Easy to use and operate by one person during installation and maintenance, saving labor costs.
  
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  High and low temperature resistance The SMC composite manhole covers and frames independently developed and produced by BETTER COVER can be used for a long time at -50℃~+150℃. The products have super corrosion resistance，Changes in ambient temperature will not affect the performance of the products. At the same time, the products have super Strong resistance to bending and impact, with a service life of over 30 years.

Autonomous R & D and production mold

BETTER COVER's R&D team can carry out customized development of products of different sizes,
from product structure design, to mold design and manufacturing, to mass production of finished products.
Our core engineers have 20 years of experience in the industry.

Bridge design (strong bearing capacity)

Enhance compression resistance→ thereby achieving product lightweight

STRONG SEALING PERFORMANCEHigh fit of manhole cover and seat, stable structure and tiny deformation.
The oblique cut design of the sealing ring has a large contact surface.

• High output and low cost

  Composite materials are more abundant than cast iron and other metal resources, with higher cost performance. One-time molding, faster production process and lower manufacturing cost than cast iron products.

• Strong waterproof

  The manhole cover and well seat are made of the same SMC composite material and are formed by mold pressing, which has high dimensional accuracy and ensures the stability of the sealing gap between the well cover and the well seat. Moreover, a rubber seal with oil and gas resistance, wear resistance and high and low temperature resistance is used between the well cover and the well seat, which makes the complete set of well covers have good anti-leakage performance.