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:
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- 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
- Size range: 546mm – 699mm
Available for hire from HTC, giving contractors and utilities access to specialist vacuum testing equipment without the investment of purchase.
