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Own brand · Manufactured by MJS Purge Systems

Spanstop™

ATO & inflatable pipe stoppers that safely seal lines for testing, maintenance and isolation across a wide range of diameters.

What we supply

Inflatable Pipe Stoppers

Ato and single bag inflatable stoppers to block, isolate, and seal pipes for welding, testing and maintance

The SpanStop range is designed to block the interiors of pipes and ducting safely and effectively. Units can be produced in a variety of shapes and sizes, ranging from 2" to 98" diameter.

Custom-built systems are also available to meet specialist customer requirements.

ATO & Inflatable Pipe Stoppers

Options Available

Regular

SpanStop Regular

  • Polyurethane-coated nylon
  • Chemical-resistant nitrile version
ATO

SpanStop ATO

  • Specially developed for air testing of pipes before commissioning
  • Polyurethane-coated polyester with neoprene sealing surfaces
Manufacturer

MJS Purge Systems

MJS Purge Systems Ltd is a UK designer and manufacturer of patented pipe purge systems, pipe stoppers, inflatable pipeline sealing products and oxygen monitors for welding, construction and industrial applications.

The business began in 1998, when Martyn and Julie Smith started making air bags and purge systems from their double garage in Leicester. From those early beginnings, MJS grew by working closely with customers, developing practical solutions to real site challenges and building a strong reputation for quality, reliability and innovation.

Over the years, MJS has become known for designing products that improve safety, reduce downtime and make pipe preparation and welding more efficient. A key part of that success has been listening to customers and turning real-world requirements into specialist products that deliver clear performance benefits.

In 2024, following the well-earned retirement of Martyn and Julie Smith, MJS Purge Systems Ltd was established to take the company forward. The business moved to a new factory in Peterlee, where a new team was trained to meet growing production demand and new systems were introduced to support future development.

We hold the patents and we manufacture the products ourselves.
2003Patented purge technology
PPMO₂ monitoring accuracy
GlobalDistribution network
Spanweld · Spanstop

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Custom-built systems are also available to meet specialist customer requirements.