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Copyright © Emerson Process Management. The information in this document is subject to change without notice.
Updated data sheets can be obtained from our website www.El-O-Matic.com or from your nearest Valve Automation Center USA: +1 813 319 0266 Europe: +31 74 256 10 10 Asia-Pacific: +65 6501 4600
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Description
The corrosion protection system of standard El-O-Matic E&P series pneumatic actuators consist of the
following treatments or materials:
1 De-greasing
All aluminum parts are de-greased before the powder coating is applied by washing with an alkaline
solution to assure the best bonding between the aluminum surface and the coating.
2 Powder coating
- Polyester non-TGIC based powder coating for exterior use.
- The powder coating is applied cold using automatic electrostatic spray equipment and is cured at
minimum 190°C (374°F) offering excellent anti color fade and weather resistance.
- The powder coating thickness is 1.5 mm (37 microns) minimum, and 2 mm (50 microns) average.
- Good resistance against most chemical bases, acids, solvents, alkalis and oils at normal temperatures.
- Excellent exterior mechanical durability.
- The coating has passed a salt spray test according to ASTM B117 for 500 hours. The powder coating is
virtually solvent free, and therefore environmentally friendly.
3 High grade & hard anodized aluminum pinion
Actuators with high grade & hard anodized aluminum pinions, passed a 500 hours salt spray test.
Optional stainless steel pinions are available for a higher corrosion resistance.
4 Stainless steel or Deltatone
®
treated external steel parts
External parts are stainless steel or steel alloy with a Deltatone
®
treatment.
Technical data:
Coating : Polyester non-TGIC based powder coating
Salt spray test : DIN 50021 / ASTM B117: 500h
Color : Yellow (RAL 1007)
Materials : Housing : Aluminum alloy
: Pinion : High grade aluminum alloy, hard anodized
(Option : Stainless steel)
: Fasteners : Stainless steel or alloy steel with Deltatone
®
treatment
: Tagplate : Stainless steel
Application : Standard EL-O-MATIC E & P series pneumatic actuators
For Non-Standard actuators, see data sheet A4.204.05
Option : CSR coating for excellent corrosion resistance
See data sheet A4.204.02
High grade aluminum alloy,
hard anodized
(Option : Stainless steel)
Stainless steel fasteners
Powder coating:
Polyester non-TGIC based powder
coating for exterior use.
A4.204.01 Rev.B
EL-O-MATIC STANDARD CORROSION PROTECTION SYSTEM
Sheet No.:
Date: April 2011