PAM Access Covers are produced to exacting specifications in modern, highly automated, quality controlled manufacturing facilities.  These municipal castings meet, and indeed exceed, local, European, U.S., and international standards and provide the end-user with consistently superior performance in all applications for which the products are designed.


In order to conform with U.S. requirements - ASTM A536 and AASHTO H20 load ratings - a proof load test was performed on the PAM product line by an independent, approved and accredited test house.  All products consistently exceeded the necessary requirements.


All PAM covers are in compliance with European standard EN 124.  This standard is widely regarded as the most stringent municipal casting standard and is referenced by specification engineers throughout the world.  To achieve this compliance, all our products are submitted to the following tests:

  • Resistance to breaking
  • Permanent set
  • Flatness seating
  • Securing of cover within its frame
  • Clear opening
  • Opening angle
  • Depth of insertion
  • Frame depth, frame bearing area
  • Marking

For more information on the EN 124 standard, click here.


All PAM plants are accredited to ISO 9000 manufacturing and design performance standards, ensuring that product quality is consistent for every cover and grating.  There are over 6 million PAM units in the ground around the world - compelling evidence of the unsurpassed quality and functionality of these innovative covers.


The significant performance advantages gained by using the PAM product line result from:

  • The advantages of ductile iron:
    • Lighter weight
    • Predictable mechanical performance
    • Strength and durability
    • Design-ability
    • Impact resistance
    • Elasticity
  • Decades of experience manufacturing ductile iron products
  • More than 30 years of expertise in the design of municipal castings
  • Directly assessing the needs of the customer and designing products to meet those challenges


  • Laboratory:
    • Resistance
    • Durability
    • Ergonomics
    • Safety
    • Flow Capacity
  • Road Trials
    • High speed
    • Breaking
    • Acceleration
    • Loaded trucks
    • Dynamic loading situations

For more detailed information on the testing that all PAM covers are subjected to, click here.