Dry Link Technical Data
Technical Information
THIS PRODUCT IS NOT RECOMMENDED FOR USE WITH GASES
WARNING:
FOR ONE TIME FIELD TEST ONLY, the maximum joint working pressure may be increased to 11/2 times the figures shown.
Vacuum: Tested to 28” (711mm Hg) vacuum in all positions without leakage.
Miscellaneous Test Data
Bending moments (coupled assembly):
Maximum 200 ft-lbs. (271 n*m) at the swivel
Temperature Data
The Dry Link adaptor/coupler assembly has an operating temperature range of:
-20° F to +230° F (-29° C to +110° C), using Fluoroelastomer or EPDM seals and +2O° F to +230° F (-7° C to +110° C) using PTFE seals.
Seals made of Perfluoroelastomer material may be rated to higher temperatures.
Materials Data
Wetted Metal Parts:
All 316 Stainless Steel (standard), Alloy 20 (Carpenter 20 CB-3) and Hastelloy C (Optional)
*Disc is Electroless Nickel Plated (ENP) to minimize wear and galling.
Main Seals:
Choice of PTFE (Teflon®), Fluoroelastomer (Viton®), EPDM or Perfluoroelastomer (FFKM, Kalrez®, Chemraz®).
Teflon®, Viton® and Kalrez® are the registered trademarks of Dupont Dow Elastomers Company.
Chemraz® is the registered trademark of Green Tweed Company.
Pressure Data
| Maximum Working Pressures |
| 1” |
(DN 25) |
210 PSI |
(14.3 bar) |
| 1½” |
(DN 40) |
210 PSI |
(14.3 bar) |
| 2” |
(DN 50) |
150 PSI |
(10.3 bar) |
| 3” |
(DN 80) |
120 PSI |
(8.3 bar) |
| 4” |
(DN 100) |
120 PSI |
(8.3 bar) |
Stageing Device
Available for ease of handling for vertical loading of 2” and 3”
Body Material Options - for Highly Corrosive Applications
Alloy 20
Carpenter 20, Carpenter CB-3, ASTM A351 Grade CN7M
Introduced for sulphuric acid applications
Hastelloy C
ASTM A494 Grade CW2M
Introduced for all highly corrosive applications
Pressure Cap
For added protection, a metallic pressure cap is available on 2” and 3”
Special Main Seal Options - Perfluoroelastomer
The main seal is now available in Elastomeric PTFE material. Perfluoroelastomer FFKM Trade names being Chemraz® and Kalrez®). This is the most chemical resistant and tough elastomer available in the marketplace. These seals have been introduced because they do not score as easily as PTFE and will last longer in harsh environments.
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