| HART O-Ring Unions -
Dielectric Unions |
3000 LB. Dielectric - Insulated Threaded
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The Most Effective Method of Preventing Electrolytic Deterioration |
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- Insulated against galvanic corrosion
- Breaks the flow of current to prevent stray current corrosion
- All HART Industrial Unions are precision machined
- Tailpiece coated with a tough baked industrial thermo-setting epoxy, bonded directly to the metal
- Manufactured in all standard metals or combination of metals
- Teflon shoulder gasket for extra wear resistance
- Insulating properties - exceeds 500 volts dielectric resistance
- Specify prefix letter "D"
- Example D-3131-5-V-316 (see the "How to Order" page)
- Note: Tailpiece side must be FNPT - screwed, however, threadpiece side can be socketwelded, sweated, or buttwelded
- Tailpiece side must be threaded otherwise the welding torch would burn off the bonded-on insulation which makes it dielectric
*** View Dielectric Union Technical Data Sheet
*** View 3D Dielectric Union Assembly
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D-3131
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Available in these end configurations:
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D-3131 FNPT X FNPT
D-6161 FNPT X FNPT
D-6163 FNPT X SW
D-3135 FNPT X BW
D-3136 FNPT X Copper Sweat Tube |
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Dielectric Transition Union
HART
D-3136-3/4-V-304/B(k)
This animation demonstrates the most effective method of
preventing electrolytic deterioration between two dissimilar metals!
HART Dielectric Unions break the
flow of current to prevent stray current corrosion. Tailpiece is coated
with a tough thermosetting epoxy polymer which provides >500
volts/mil. resistance.
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