Manhole Systems


Watertight Manhole Covers

SCG Process is a distributor for Hamilton-Kent’s innovative watertight, corrosion-proof, non-conductive, locking rubber manhole frame and cover called the Lifespan System™. 

The Lifespan System™ is the only integrated system on the market specifically designed to eliminate unwanted flows at the cover and chimney area.   The components are made of high-performance rubber used to seal sewer pipes and manholes for more than 60 years.  Now applied to the top of collection systems, utilities have a watertight, corrosion-proof and highly durable frame, eliminating rattling, binding and preventing covers from breaking.  

The Lifespan System™ has several benefits and advantages:

  • Reduces inflow & surcharges
  • Reduces capital expenditures
  • Reduces wastewater treatment & maintenance costs
  • Reduces energy costs & carbon footprint
  • Cost effective with enhanced life expectancy
  • Choice of cast iron or composite lids, available in 24″, 27″ & 30″ clear opening sizes


  • Watertight
  • Durable
  • Non-corrosive
  • Non-conductive
  • Load absorbing
  • Integrated grade adjustment
  • Integrated security
  • Ergonomically friendly
  • Easy installation

Become The Steward Of Your Plant’s Gas & Fluid Transfer, Treatment & Transport Needs.

SCG Process provides a one-stop shop, end to end solution for your water, wastewater and industrial needs.

Our website uses cookies to enhance your experience and provide you with personalized information. By clicking on the ‘Accept’ button, you are agreeing to our use of cookies, tracking technologies and term and conditions. See our Privacy Policy.