Heavy-Duty Construction
A thick-walled body profile built for the knocks that come with tank-top service and repeated site handling.

Precision-manufactured aluminium fill caps that close the fill point of underground fuel storage tanks, machined for a positive seat, a secure fit and consistent quality across the batch.
Closes the tank fill point, machined for a positive seat and a secure, repeatable fit.
A thick-walled body profile built for the knocks that come with tank-top service and repeated site handling.
Aluminium construction chosen for a practical balance of strength, weight and workability.
Machined seating face designed to sit square on the fill point and stay closed in normal service.
An integral drilled lug for a lanyard or securing chain, so the cap stays with the tank.
Machined to controlled dimensions so fitment stays consistent from the first piece to the last.
Set up for repeat batch production, supporting distributor and project-scale order volumes.
Reference specifications for the Heavy Duty Aluminium Fill Cap. Detailed dimensional drawings are shared against a specific requirement.
Specifications listed above are indicative and provided for reference. Sizes, dimensional details and finish options are shared on request against your requirement.
| Material | Aluminium |
|---|---|
| Product Type | Fill Cap |
| Application | Underground Fuel Storage Tanks |
| Size | Available on Request |
| Finish | Industrial Finish |
| Order Type | Bulk / B2B |
| Customization | Available on Request |
No certification, approval or standards claims are made for this product listing.
Pricing on request
Fill Cap pricing depends on quantity, specification and delivery location, so we quote each enquiry directly. Send us your requirement and we will come back with a firm price.
01Engineered for underground fuel storage applications where durability, fit and dependable operation matter.
02Used alongside the dip cap for manual dip measurement, graduated along the length and machined straight for repeated site use.
03Three-port vent body with mesh screens, built to stay outdoors in continuous service.
Talk to RV Engineering for bulk pricing, specifications and order requirements.
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