Sava - Egg Shaped Plugs - PLUGY EI & PLUGSY EI
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Sava – Egg Shaped Plugs – PLUGY EI & PLUGSY EI

When the job demands dependable pipe isolation, testing, or flow stopping in egg-shaped sewer lines and wastewater networks, the Sava PLUGY EI & PLUGSY EI egg-shaped range at HTC delivers industrial-grade performance trusted by contractors, utilities, and civil infrastructure teams.

Designed for flexibility, durability, and ease of handling, these multi-size pneumatic pipe plugs fit all standard egg-shaped pipes, allowing them to exhibit excellent stretching and sealing characteristics across a wide range of pipeline dimensions from 200/300 mm up to 1400/2100 mm. They feature two design versions where the shape of the first two sizes is adapted directly to the contour of the pipeline, while the larger sizes are pillow-shaped to heavily simplify insertion through restricted manholes. They are equipped with high-quality Type 26 or safety GEKA inflation couplings and integrated structural eyebolts or shackles to simplify manipulation. Perfect for municipal utility crews, this specialized range is available in seven standard sizes across both sealing (blocking) and bypass types for demanding pipeline maintenance applications.

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Built for Egg-Shaped Pipeline Applications

The Sava PLUGY EI and PLUGSY EI range is engineered to seal and test specialized egg-shaped pipework from 200/300 mm through to 1400/2100 mm diameter. Their overlapping multi-size design means fewer plugs are required on-site, helping crews work faster while reducing equipment inventory.

Manufactured in two distinct design versions, these plugs are engineered to navigate tight setups. While the first two smaller sizes are contoured to match the exact geometric shape of the pipeline, the larger sizes utilize a flexible, fully foldable pillow-shaped design, allowing them to remain highly flexible for effortless insertion through standard manholes and tight access chambers.

PLUGY EI vs PLUGSY EI – What’s the Difference?

Feature PLUGY EI – Blocking Plugs PLUGSY EI – Bypass Plugs
Primary Function Designed for complete pipe sealing and isolation within non-circular, egg-shaped profiles. Includes an integrated bypass system, allowing high-capacity flow-through capability or controlled fluid diversion while maintaining a tight pneumatic seal.
Ideal Applications Historic brick or modern concrete egg-shaped sewer maintenance and repairLeak detection and structural isolationTotal flow stopping in egg-profile utility linesGeneral municipal wastewater and stormwater isolation Pipeline tightness testing with continuous flow-throughTemporary bypass operations in egg-profile conduitsControlled drainage and fluid diversion during main-line repairsUtility and municipal asset maintenance works
Design & Capabilities Their lightweight design and fully foldable pillow construction on larger variants ensure rapid deployment even in difficult-access vaults. The larger pillow-type bypass models support reliable monitoring and high-efficiency fluid handling during critical structural operations.

Key Features

  • Fit All Standard Egg-Shaped Pipes Specifically molded to match the distinctive non-circular geometric contours of standard egg-profile infrastructure.

  • Two Design Versions Features directly adapted pipeline-shaped bodies for the first two smaller sizes, transitioning to a specialized pillow-shaped layout for the larger tiers to maximize handling efficiency.

  • Flexible & Fully Foldable The larger pillow-shaped variations can be collapsed completely flat, ensuring they slip through cramped vertical paths effortlessly.

  • Restricted Entry Optimized Intentionally engineered to slide cleanly into standard 600 mm manhole openings before full vertical positioning and inflation.

  • Dual Pneumatic Interface System Utilizes standard Type 26 pneumatic couplings for small EI plugs and switches to heavy-duty safety GEKA couplings for larger pillow setups to maximize structural security.

Available Sizes

The range is available in seven standard sizes designed to safeguard small utility conduits through to massive combined civil trunk lines. Available coverage ranges include:

  • 200/300 mm

  • 250/375 mm

  • 300/450 mm to 400/600 mm

  • 500/750 mm to 600/900 mm

  • 700/1050 mm to 800/1200 mm

  • 900/1350 mm to 1000/1500 mm (Pillow Design)

  • 1200/1800 mm up to 1400/2100 mm (Pillow Design)

Accessories & System Components

HTC supplies a complete range of matching, pressure-rated accessories built to manage egg-shaped plug installations safely:

  • Inflation Hoses (Type 26): Heavy-duty 10-meter utility inflation hoses available in vibrant Red, Blue, and Yellow for rapid error-free tracking.

  • Inflation Hoses with Safety GEKA Couplings: Robust 10-meter specialized air lines configured specifically for the high-volume pillow-style sizes.

  • Single Fitting Controllers: Calibrated control units available in a 1.5 bar layout to guarantee exact, safe inflation limits.

  • Positioning Shackles & Eyebolts: Industrial-grade mechanical attachment points to assist in vertical positioning and secure alignment inside the line.

The Sava PLUGY EI & PLUGSY EI range is suitable for:

  • Egg-profile sewer main maintenance and cleaning

  • Historic brick wastewater channel testing and isolation

  • Stormwater oval arch pipeline leak detection

  • Civil construction trench upgrades and line bypasses

  • Municipal infrastructure repairs with strict manhole constraints

  • High-volume pipeline rehabilitation works

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