EST Group, a Curtiss-Wright Industrial Division product brand, is a market leader in providing highly engineered products and comprehensive repair services for heat management cooling systems.

EST Group specialize in engineered plugs for shell and tube heat exchangers, condensers, oil coolers, piping systems and pressure vessels for severe service applications.

Its best known product – the Pop-A-Plug® – is the industry’s leading technology. EST Group provides a comprehensive range of field services for heat management systems.

EST Group | Curtiss Wright

Curtiss Wright

EST Group, is dedicated to providing a complete range of lifecycle products and services for tubular heat exchangers, condensers, pipes, piping systems and pressure vessels.

EST Group serves the power generation; petrochemical and refining; fine chemical and pharmaceutical; shipbuilding; oil and gas production; and engineering and construction industries worldwide.

Esco Ground Millhog Series

Tube Plugging System

Esco Ground Millhog Series

Hydrostatic Testing and
Isolation Plugs

Pop-A-Plug® Tube Plugging System

POP-A-PLUG® Tube Plugging System

  • Rapid preparation and plugging for heat exchanger, condenser and boiler tubes
  • EST Group offers a complete line of heat exchanger, boiler and condenser tube plugs designed for quickly preparing and plugging leaking and degraded heat exchanger, condenser and boiler tubes.
  • Quickly Prepare, Plug And Repair Leaking Heat Exchanger, Condenser and Boiler Tubes
  • Install and Remove Plugs Without Welding or Explosives
  • Locate and Identify Leaks
  • Tube Plugs are suitable for service in operating pressures up to 7,000 psi (483 Bar) and are designed to be installed without welding or explosives. A variety of systems and tools are available for installation and removal.
  • Tube Stabilizers are designed for stabilizing fractured or severed heat exchanger tubes while tube sleeving is designed to effectively repair damaged tube ends.
  • Also available are Tube Testing Guns for locating and identifying leaking heat exchanger tubes.

Hydrostatic Test & Isolation Plugs

  • Safe, effective solutions for rapid pipe testing and repairs
  • EST Group offers a complete line of Hydrostatic Pressure Test and Pipeline Isolation Plugs for hydro pressure testing pipework, pipelines and pressure vessels.
  • Test Open End Pipes, Pipelines, Tubes and Pressure Vessels
  • Perform Flange-To-Pipe Weld Testing
  • Isolate and Test Pipe Connections
  • Hydro Test plugs for pipe provide safe and effective testing at working pressures up to 15,000 psi (1034 Bar). Pipe OD and ID sealing versions available.
  • Pipe isolation plugs are designed for quickly isolating and hydrostatically testing weld joints of any welded flange-to-pipe connection as well as isolating pipe ends during cutting, grinding and welding operations.
  • Also available are hydrostatic test pumps, ideal for use with our entire range of pressure test plugs.