8in Threaded Tank Lid with Non-Return Valve – 250mm Polypropylene

Threaded polypropylene tank lid featuring an integrated non-return valve for secure, contamination-free ventilation.

This 8-inch tank lid threads securely into a compatible lid ring collar, creating a watertight seal. The ergonomic handle enables quick and easy opening and closing, whilst the built-in non-return valve allows air pressure to equalise without permitting contaminants or debris to enter the tank.

Key Features

• Integrated non-return valve prevents backflow and contamination ingress
• Lightweight and durable polypropylene construction
• Ergonomic handle for convenient access
• Quick-thread design for secure installation
• 250mm outer diameter with 210mm thread diameter
• Compatible with standard tank collar systems

Specifications

• Outer diameter: 250mm
• Thread diameter: 210mm
• Material: Polypropylene
• Valve type: Non-return (one-way)
• Thread fitment: Standard tank collar

Applications

• Water storage tanks and reservoirs
• Industrial and agricultural liquid storage
• Potable and non-potable water systems
• IBC and tank replacement covers
• Systems requiring pressure equalisation without contamination risk