Our custom-engineered GRP tank lids provide a fully sealed solution for any cylindrical tank, delivering long-term corrosion resistance, structural performance, and unmatched installation efficiency. Designed for both new and existing tanks - concrete or bolted steel - this system combines advanced composite engineering with practical, installer-friendly innovation.

The assembly can be supplied fully sealed to prevent vapour escape and to protect against atmospheric ingress where required, making it ideal for:

• Wastewater treatment
• Chemical processing
• Industrial odour-sensitive applications
• Environmental compliance zones
• Any installation requiring a full enclosure or an atmosphere isolation

Thanks to the lightweight modular sections and the locking hub system, the entire lid can be assembled on the ground without a crane.

• Hub fits securely onto a returnable adjustable assembly stand
• Each component locks into position before bolting
• Safe and manageable for small teams
• Dramatically reduces installation costs and logistical complexity

Lock-In Returnable Ladder for OnTank Assembly
For final installation on the tank, the design includes a purpose-built lock-in returnable ladder.

This allows installers to:

• Safely climb onto the partially assembled lid
• Work from a secure, stable platform
• Easily access each petal during bolting
• Maintain safe working procedures at height

This integrated safety feature sets the product apart from standard GRP lid systems.

Each lid includes an easy-access viewing hatch, designed so operators can safely check the contents or the opposite side of the tank without leaning into the opening.

This improves visibility, reduces strain, and supports safer inspection procedures - especially during routine plant checks.