The bladder‐style vacuum test head is engineered for efficient vacuum testing of manholes and sealed chambers. With a lightweight aluminium frame and “Wide Bladder” technology, the unit fits a broad range of manhole diameters, reducing the need for multiple heads. The height‐adjustable support brace and Super Wingnut™ system enable quick setup and secure positioning. Included are a vacuum port, shut-off valve, 30″ Hg gauge and a vacuum relief valve — all working together to create a reliable seal, enable accurate vacuum measurement and help identify leaks or structural faults in underground infrastructure.
Key Features:
-
- Multi‐diameter bladder seal system for flexible use across manhole sizes
- Lightweight aluminium frame for portability and ease of handling
- Fast height adjustment with Super Wingnut™ for efficient setup
- Built‐in vacuum gauge, shut‐off valve and relief valve for precise testing
- Durable support bar for stable operation during field use
- Ideal for manhole, pit and underground infrastructure testing across New Zealand
Available for hire from HTC, giving contractors and utilities access to specialist vacuum testing equipment without the investment of purchase.
