1. AMMONIA SYSTEM INSTALLATION EXAMPLE ON OPERATING SYSTEM USING:

2. SYSTEM AGE: 16 YEARS SYSTEM AGE: 16 YEARS 85 – 90° F 85 – 90° F 85% HUMIDITY 85% HUMIDITY 9:30 AM EST 9:30 AM EST SYSTEM TEMPERATURE 24° F SYSTEM TEMPERATURE 24° F 4 O.D. PRIMED STEEL PIPE 4 O.D. PRIMED STEEL PIPE 4 STYROFOAM INSULATION 4 STYROFOAM INSULATION RG-2400 LT AT AMBIENT (90-96° F) RG-2400 LT AT AMBIENT (90-96° F) INSTALLATION TIME 21 MINUTES INSTALLATION TIME 21 MINUTES INSTALLATION CONDITIONS

3. PICTORAL INSTALLATION REMOVING METAL JACKET

4. METAL JACKET REMOVED ASJ ON STYROFOAM STYRO FIBERGLASS EXPANSION JOINT After removing approximately 6 of metal jacketing, we knew corrosion would be present due to the fiberglass present, and the lack of a vapor retarder on some of the styrofoam insulation. REMAINING PRIMER EASILY REMOVED

5. CLOSE-UP OF EXPANSION JOINT

6. PRIMER ON INSULATION CORROSION ON PIPE

8. REMAINING PRIMER EASILY REMOVED

9. PIPE IS READY FOR RG-2400 LT Note slight frost already forming on the pipe surface. Primer which was well adhered to the pipe does not have to be removed.

10. INSTALLING RG-2400 LT

11. Pipe temperature thickens the RG-2400 LT quickly. After 3 passes over an area it gets difficult to spread and achieve adhesion. The slight frost on the pipe left some voids, however fresh warm material could be put over these areas and achieve ahesion.

13. A WELL COATED PIPE READY FOR INSULATION

17. CONCLUSIONS COATING A 24° PIPE IN OPERATION IS POSSIBLE IN SMALL SECTIONS. RG-2400 MUST BE WARM TO IMPROVE COVERAGE AND EASE OF APPLICATION INSULATION MUST BE INSTALLED IMMEDIATELY UPON ACHIEVING COVERAGE TO PREVENT CONDENSATION FROM FORMING ON THE RG-2400 INSULRAP OR FABWRAP VAPOR BARRIER SHOULD BE USED TO KEEP OUT MOISTURE TESTING WILL CONTINUE ON -15° F LINES IN OPERATION AND -50° F LINES IN OPERATION. RESULTS WILL BE ADDED TO THIS PPT PRESENTATION. GLYCOL WILL BE TESTED TO REMOVE FROST ON THE COLDER LINES.