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PROLITE
PLASTICS LTD.
SPECIALTY DUAL LAMINATE HEADERS FOR SODIUM CHLORATE
| Description: |
18" dia. ECTFE/FRP
Header |
| Contents: |
NaClO3 at 95°C |
| Corrosion Liner: |
2.3mm ECTFE fabric backed |
| Structural Resin:
|
Dow Derakane 411 vinyl
ester resin |
| Construction: |
3/8" thk. hand lay
up pipe |
Dual
Laminate Headers used in Sodium Chlorate Processes
Prolite Plastics Ltd.
has provided specialty fluoropolymer lined FRP headers for many
sodium chlorate manufacturers for over 25 years.
Recent testing by the
Swedish Corrosion Institude has led to the introduction of ECTFE
lined FRP piping for Hydrogen rich gas streams and more recently
Ausimont MFA fluoropolymer lined FRP piping for feed brine lines
and sodium chlorate collection lines.
In lower temperature
applications CPVC and PVC lined FRP piping have provided
sufficient corrosion resistance. As processing temperatures
increased, different material pipe liners were tried. One of
these materials was FEP which was installed as a loose liner. FEP
loose liners have continuously failed due to collapse under
vacuum conditions and also water vapour permeation of the liner.
The ECTFE and MFA
liner materials have proven to be more permeation resistant.
Furthermore, with proper bonding techniques to the FRP structural
laminate, the liners are sufficient to resist full vacuum. The
ECTFE and MFA lined FRP products are also less expensive than
exotic metals such as titanium.
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© Prolite Plastics Ltd, June 2,
2000
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