Sava – Man Hole Plugs – PLUGSY VJ
When the job demands dependable pipe isolation, testing, or flow stopping specifically for manhole tightness testing, the Sava PLUGSY VJ manhole-plug range at HTC delivers industrial-grade performance trusted by contractors, utilities, and civil infrastructure teams.
Designed for flexibility, durability, and ease of handling, these specialized pneumatic pipe plugs feature a short and light construction, allowing them to exhibit excellent sealing and containment characteristics across manhole structures from 600 mm up to 1000 mm. They feature a special narrow design to fit manholes perfectly, a high-quality rubber body equipped with a special sealing and protection foam, and three integrated eyebolts to ensure simple vertical insertion. Perfect for compliance-driven infrastructure works, this heavy-duty range is fully suitable for EN 1610 testing standards, simplifying handling during demanding utility and municipal maintenance applications.
Additional Information
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Built for Manhole Tightness Testing Applications
The Sava PLUGSY VJ range is engineered to seal and test manhole structures from 600mm through to 1000mm diameter. Their specialized configurations mean crews can perform quick, accurate vertical deployments, helping teams work faster while meeting rigorous municipal compliance standards.
Manufactured with a short and light profile, these plugs are uniquely optimized for confined, vertical manhole environments. Featuring a special narrow design and a dedicated sealing and protection foam layer, they are designed to withstand demanding civil testing conditions while ensuring an absolute pneumatic seal across irregular structural walls.
PLUGSY VJ Configurations – What’s the Difference?
The PLUGSY VJ family consists entirely of high-performance bypass plugs, divided into two distinct structural design types to suit your project’s specific sizing and flexibility requirements:
| Feature | PLUGSY VJ Single-Size Design | PLUGSY VJ Multi-Size Design |
| Primary Application | Tailored for exact, single-diameter applications within standard manhole structures. | Engineered with an interlapping expansion range designed to adapt to dynamic structural variations. |
| Available Models & Sizing | Available in standard VJ 600 (590–600mm), VJ 800 (780–800mm), and VJ 1000 (980–1000mm) configurations. | Available as the VJ 600-650 model, covering a continuous size usage range up to a 650mm maximum diameter. |
| Operating Inflation Pressure | Operates at a low, highly stable required inflation pressure of 0.5 bar. | Requires a higher inflation pressure of 1.5 bar to maintain structural containment across variable ranges. |
| Core Advantage | Provides a perfectly matched, seamless contour specifically optimized for nominal standard manhole chambers. | Allows teams to safely bridge dynamic pipeline usage tiers and varying entry points with a single, highly flexible asset. |
Key Features
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Special Narrow Design Engineered with a short, compact profile explicitly contoured to slide into vertical manhole shafts without binding or catching.
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Three Integrated Eyebolts Outfitted with three balanced top-side eyebolts to facilitate perfectly straight, simple vertical insertion and level positioning via ropes or lift lines.
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Special Sealing & Protection Foam Wrapped in a heavy-duty, compressible protective foam layer that enhances surface sealing performance and cushions the inner rubber core against rough concrete abrasions.
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Suitable for EN 1610 Testing Built to supply the uncompromising pneumatic sealing and pressure isolation required for official EN 1610 air and water tightness validation testing.
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Integrated 2-Inch Bypass Features a built-in 2″ female flow-through bypass to support water filling, continuous drainage, or test instrumentation attachment during inspection windows.
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Short & Light Construction Heavily optimized to lower physical handling stress, with weights ranging from just 5 kg to 16 kg depending on the model, allowing simple manual handling.
Available Sizes
The range provides targeted coverage for standard utility access shafts, municipal wastewater junctions, and large trunk line manholes. Available models include:
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VJ 600 (Single-size layout, 590–600mm usage range)
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VJ 600-650 (Multi-size flexibility, up to 650mm maximum expansion)
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VJ 800 (Single-size layout, 780–800mm usage range)
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VJ 1000 (Single-size layout, 980–1000mm usage range)
Accessories & System Components
HTC supplies a complete range of compatible Type 26 pneumatic accessories to support safe, reliable manhole deployment:
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Color-Coded Inflation Hoses: Commercial-grade 10-meter lines available in Red, Blue, and Yellow to ensure precise, error-free safety monitoring on-site.
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Single Fitting Controllers: Calibrated pneumatic control heads tailored for 0.5 bar or 1.5 bar configurations to protect plugs against accidental over-inflation.
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Deadman Safety Controllers: Handheld safety inflation controllers with an integrated quick-release valve for positive operator pressure management.
The Sava PLUGSY VJ range is suitable for:
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EN 1610 manhole tightness testing and compliance validation
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Municipal sewer system structure inspections
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Stormwater access vault leak detection and line isolation
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Civil engineering commissioning and infrastructure upgrades
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Vertical utility junction maintenance and rehabilitation works
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Wastewater vault controlled drainage and flow bypass testing
