PVC Inflatable Sealing Bag

A durable PVC inflatable sealing bag designed to temporarily plug and seal pipes, sewers, and drains. Engineered with a tough, flexible PVC bladder, it provides a reliable visual seal to block water or debris flow during routine site maintenance or emergency pipeline isolation.

Compact Deflated Entry Profile – Collapses down tightly to slip into tight pipe openings and limited access points where physical clearance is significantly smaller than the targeted line diameter.
Integrated Universal Inflation Interface – Features a standard pneumatic car-type Schrader connection valve to connect directly with manual hand pumps or stirrup pumps for simple site setup.
British Standards Compliance Design – Engineered to hold a dependable baseline airtight block against a back pressure of 100mm U Gauge water over air during structural test passes.
Chemical Resistant Perimeter Ridges – Manufactured with an outer sealing shell that blocks chemical ingress while peripheral ridges grip the inner pipe surface to stop the bag from slipping.

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Full Description

Built to withstand the challenging conditions of UK utility networks and civil engineering projects, this PVC inflatable sealing bag is a dependable solution for temporary pipe isolation, flow control, and pressure testing. It is manufactured from a high-grade, puncture-resistant PVC compound that maintains excellent flexibility, ensuring a tight conformity to uneven or corroded pipe walls. The inflatable design allows the bag to pass effortlessly through restricted standard manholes and tight pipe bends before deployment. Once positioned, it quickly expands under low air pressure to create a robust, secure barrier against backwater, hazardous debris, or gases. The sealing bag features a standard inflation valve compatible with typical site footprint pumps or compressor lines, making it a critical addition to any groundwork contractor or drainage engineer's safety and maintenance kit.

FAQs

What are the main applications for a PVC inflatable sealing bag on site?

Inflatable sealing bags are designed to temporarily block, isolate, or bypass flow in drainage lines, sewer pipes, and culverts during maintenance, inspection, or repairs.

Why choose a PVC inflatable bag over rigid mechanical pipe stoppers?

The flexible PVC construction conforms effortlessly to irregular or slightly damaged pipe walls, ensuring a tight, reliable seal while being lightweight and compact to transport into tight manholes.

What range of pipe diameters can a single inflatable sealing bag cover?

Because the PVC bladder expands under air pressure, a single multi-size sealing bag can safely fit and seal a wide spectrum of internal pipe diameters, reducing the need for multiple fixed stoppers.

How is the PVC inflatable pipe stopper inflated safely?

The bag is fitted with a standard Schrader valve or quick-release coupling, allowing field teams to inflate it accurately to the recommended operating pressure using a hand pump, compressor, or safety control unit.

Is the PVC material resistant to punctures, water, and site effluent?

Yes, it is manufactured from heavy-duty, abrasion-resistant PVC material that stands up to continuous contact with wastewater, grit, mud, and common site chemicals without degrading.