Dielectric Unions
<p>Dielectric unions provide insulation between incompatible materials for joining them safely. They avoid electrolysis, which leads to corrosion or pipe failure. They are ideal for pipe sizes ranging from 3/4 to 4 inches. </p>
Dielectric Union 3/4 x 1/2 Inch Fip x Solder
Model | Item | Price (ex. VAT) | |
---|---|---|---|
3/4x1/2 LF 3002-3/4X1/2 | AE3JGP | €21.46 |
Dielectric Union 3/4 Inch Mip x Solder
Model | Item | Price (ex. VAT) | |
---|---|---|---|
2TFA4 | AC3GNZ | €20.19 |
Flange Bolt Insulator Kit
Model | Item | Price (ex. VAT) | |
---|---|---|---|
INS-KIT 7/8 | CB4PGH | €10.94 |
Flange Bolt Insulator Kit
Model | Item | Price (ex. VAT) | |
---|---|---|---|
INS-KIT 5/8 | CB4PGG | €9.79 |
Dielectric Union Insulator Kit
Model | Item | Price (ex. VAT) | |
---|---|---|---|
INK-D-KIT | BZ2VAV | €7.04 |
Dielectric Union Insulator Kit
Model | Item | Price (ex. VAT) | |
---|---|---|---|
INK-B-KIT | CB7BYU | €6.26 |
Dielectric Unions
Watts dielectric unions are used in HVAC equipment, hot water storage tanks, and piping system for reducing the deterioration and accelerated corrosion caused due to stray and galvanic currents. These unions are capable of withstanding temperatures and pressures up to 180 degrees F and 250 psi, respectively. They are offered in FIP, MIP & solder connection options, to allow easy installation on pipe sizes ranging from 1/2 to 4 inches, on Raptor Supplies.
Frequently Asked Questions
What is stray current?
Stray current produces a high number of anodes & cathodes that can inadvertently enter an alternate (but unintended) path and create corrosion in the piping system.
What is the function of tailpieces in a dielectric union?
Tailpieces allow connecting ends of two dissimilar pipe systems so that liquid can be safely transported with minimal leakage.
How does the dielectric union break continuity?
When dielectric unions are connected between two dissimilar pipes, they ground the electric current and break continuity for complete insulation between the two environments.
How to install a dielectric union between steel and copper pipes?
- Wrap several layers of sealing tape over the threads of the steel pipe.
- Connect the threaded end of the dielectric union to the steel pipe and turn it clockwise using a pipe wrench.
- Slide the union nut over the end of the copper pipe and place the plastic insulator over the copper pipe.
- Install the copper solder adapter onto the copper pipe and sweat adapter using a propane torch.
- Allow the pipe to cool.
- Quickly slide the rubber gasket between the union nut & body and assemble it.
- Inspect to ensure a watertight connection.
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