The CTI Shield/Seal ^tm, is a thin-walled metallic tube insert made of highly durable alloys. The Shields are expanded - either mechanically, hydraulically or a hybrid of the two - into existing damaged tube ends, adding years of service to the equipment. Shields may be used for exchanger tubes suffering from:

• Tube end erosion / corrosion
• Stress Corrosion Cracking
• Crevice Corrosion
• Localized pitting
• Ammonia grooving
• Improper tube expansion
• Weakened tube-to-tubesheet joints

Materials available range from:

• Copper Alloys (Brass, 90/10, & 70/30 CuNi)
• Stainless Steel (austinetic, ferritic, duplex)
• Nickel based (C-276, Alloy 400 & 600, Ni 200, etc.)
• High Temperature (310S, etc.)
• Plus many more!

An extensive inventory is maintained to accelerate response time for customer requirements.

Why replace the entire tube when only the first few inches need repair?

From steam/chemical condensers to HP Feedwater heaters, CTI has the answer that will SAVE YOU MONEY. Don't take our word for it, view our Customer List or, better yet, contact CTI for references and you can reach our customers directly.

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