• Quickly identify and repair leaking tubes across the water box using specially designed tools
• No need to remove the outer plate of the water box
• QA system certified to ISO-9001
• Can be supplied under ANSI N45.2, 10CFR50 Appendix B
PATENTED REPAIR PRODUCTS FOR AIR COOLED HEAT EXCHANGERS
© EST Group | DC8017 2/10
AIR COOLED HEAT EXCHANGER REPAIR PRODUCTS
Identifying leaking tubes in an air cooled heat exchanger has always been a
difficult task, due to the configuration of the finned tubes. Often, when tubes
failed in the middle of a bundle, it was nearly impossible to verify the leaking
tube. The G-150 pneumatic tube testing gun set allows tubes to be quickly
tested and identified for plugging. The G-150 tube testing guns are easy to
operate. After attaching a channel head extension, which allows the test guns
to operate outside the water box, simply insert both the air injection gun and
plugging gun into the tube ends, and press the air control valve, expanding
the seals on both guns and pressurizing the tube. Any reduction of pressure
indicated on the large pressure gauge will reveal even the smallest tube leak.
Traditional tube plugging methods in air cooled heat exchangers involved
tacking a rod to a tapered pin and beating the pin into the tube end. The rod
was then shaken to break it free from the tapered pin. Tapered pins are not only
unreliable, they can turn into lethal projectiles that can pose a real safety hazard
for your workers. Resistant to thermal cycling and able to provide a seal that’s
helium-leak tight, EST Group’s patented CPI Pop-A-Plug® installs using
controlled force. This protects against damage to tubesheet ligaments and
adjacent tubesheet joints. The CPI Pop-A-Plug® takes only seconds to install.
Air cooled heat exchangers often experience excessive wear and tube failures
at the tube inlets. However, once fluid enters the tube and becomes linear
(usually within one foot of the tube end), the remainder of the failed tube is
actually in good condition. EST Group’s Hydra-Loc™ tube sleeving service is the
perfect life-extension process for this application. Utilizing a thin walled sleeve
that matches the material of the damaged tube, EST Field Service personnel
bridge over the damaged area of the tube, using our Hydra-Loc™ tube sleeve
expansion system. This process not only extends the operational life of tubes, it
can also recover plugged tubes, and bring them back into service.
Tube Testing - G-150 Test Gun Set
Tube End Repair - Hydra-Loc™ Tube Sleeving
Tube Plugging - CPI Pop-A-Plug®
Let our trained field service technicians help you!
We have the experience and know-how to handle even
the most demanding jobs safely, competently, and on-time.
EST GroupHatfield, PA 19440 USA(P) 215.721.1100 800.355.7044(F) [email protected]://estgroup.cwfc.com
EST Group B.V.Hoorn 312a2404 HL Alphen aan den RijnThe Netherlands(P) +31.172.418841(F) [email protected]
EST Group Asia35 Tannery Road, #11-10 Tannery BlockRuby Industrial ComplexSingapore 347740(P) +65.6745.8560(F) [email protected]
Gulf Coast Rental and Sales3201 N. Highway 146, Suite BBaytown, TX 77520 USA(P) 281.422.6073 800.355.7044(F) [email protected]
