Pop-A-Plug® Boiler Tube Plugs
Curtiss-Wright EST – Pop-A-Plug Boiler Tube Plugs reliably plug boiler tubes without welding or time-consuming pre-heating.
Curtiss-Wright EST – Pop-A-Plug Boiler Tube Plugs are made for fast, easy installation, just position the plug in place and set it with an easy-to-use hydraulic tool ram.
Unique breakaway controls installation force to ensure a positive seal without damage to the tube, tube-to-tube sheet joints, providing a reliable, leak-tight seal in just minutes. Repairs go faster, and expensive downtime is substantially reduced. No welding also means no waiting for inspections.
- Operating pressures to 1000 psi (69 Bar)
- Sizes for 1.638″ to 1.823″ (40.11 mm to 46.30 mm) ID Tubes
- Helium leak tight to 1×10-10 cc/sec
- Use in either water or fire tube boilers
- Ideal for HRSG’s
Contact Valcon for further specifications.

