Heat exchanger Ferrules and Tube Inserts
Tube inserts and Tube ferrules are a metal inserted into the end of a heat exchanger tube to provide protection to the Tube mouth ends of a shell & tube type heat exchanger. The need for this Tube Ferrule arises as all tube failures occur within the first few inches of the heat exchanger tube inlet-end. The solution to this situation is the use of a thin wall covering in form of metal tube insert expanded full length into the inlet-end of condensers and heat exchangers. FAV tube insert is designed to ensure a smooth and gentle transition of the fluid down the tube insert to the condenser or heat exchanger tube. We have Metal tube insert and Plastic/Delrin Tube Inserts.
The purpose of the Tube Ferrule Inserts
1) Protect inlet-end erosion & corrosion
2) Act as a protective layer
3) Reduce the medium impact
4) Transfer extremely high heat past the tube sheet to the exchanger tubes.
Common problems at Shell & Tube Type Heat Exchangers
1. Tube-end erosion/corrosion
2. Stress Corrosion Cracking
3. Crevice corrosion
4. Localized pitting
5. Ammonia grooving
6. Improper tube expansion
7. Weakened tube-to-tube sheet joints
For the above problems, FAV tube ferrule inserts offers its most cost-efficient tube protection ,repair, Shield/Seal, also known as a tube insert or ferrule. Although inserts are typically only 3″ – 15″ long, some applications have required lengths up to 3 metres.
Material of Construction for FAV Heat Exchanger Ferrules .
Plastics : Nylon ( Polyamide ), PTFE, PP, Bakelite.
Metal tube inserts in SS 304 /310/316/ 317 /321/347/ 410 / duplex, Hastalloy, Cu-Ni 90/10,Cu-Ni 70/30, Titanium, Aluminium Brass, Aluminium Bronze , Carbon Steel(B) Hastelloy C 276, Monel 400, Monel 500, Duplex, Super Duplex
Unique Advantage of FAV Ferrule
Degree or Reverse Flaring at Back End of Ferrules
FAV Ferrules gives you option at the back end of a 30 Degree to 60 Degree machining at the end . We have capability of machining them on Ultra long Ferrule Inserts also
Range of Flaring Options at Front End of Ferrules
With FAV Ferrules you can design your Flaring OD, Degree and Taper as per the needs of your Tubes
For Solid Bar Ferrules we can machine to Give you reduced ferrules after certain length
We can give Multiple Pins welded on the ferrule at various ends . Just send us the drawing and we will do it
Heat Number Traceability
All Ferrules comes with complete Heat Number Traceability and standard marking