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>
A| Style | Model | Inlet Size | Max. Working Pressure | Gasket Material | Gasket Maximum Pressure | Gasket Maximum Temperature | Inlet Material | Inlet Thread Type | Inlet Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 3004 1 1/4 | €65.64 | RFQ | ||||||||
| A | 3004 1/2 | €32.83 | RFQ |
LF4001E Series Dielectric Unions
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C| Style | Model | Inlet Size | Nut Material | Outlet Size | Insulation Material | Max. Working Pressure | Adapter Material | Gasket Material | Inlet Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF4001E 1 1/2 | €148.90 | |||||||||
| A | LF4001E 1 1/4 | €102.47 | |||||||||
| A | LF4001E 1 | €62.85 | |||||||||
| A | LF4001E 1/2 | €28.41 | |||||||||
| B | LF4001E 2 | €208.95 | |||||||||
| C | LF4001E 3/4 | €28.41 |
A| Style | Model | Inlet Size | Outlet Size | Insulation Material | Adapter Material | Gasket Material | Inlet Material | Inlet Type | Lead | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3005A 1/2 | €22.91 | |||||||||
| A | LF3005A 3/4 | €21.82 |
LF3002 Series Dielectric Unions
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B| Style | Model | Pipe Size | Connection Type | Insulation Material | Body Material | Gasket Material | Max. Pressure | Nut Material | Adapter Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3002 3/4 | €38.83 | |||||||||
| B | LF3002 1 | €31.51 |
LF3003 Series Dielectric Unions
Watts LF3003 Series dielectric unions are installed at the junction of pipes with varying metal compositions, such as water heaters or pumps, to isolate the metals and reduce potential corrosion caused by electrolysis. These unions effectively maintain water quality and extend the lifespan of plumbing systems by preventing leaks and deterioration due to the chemical reactions caused by metal interaction. The brand's LF3003 Series dielectric unions safeguard water distribution systems, ensuring reliability and durability. They come with a comprehensive assembly consisting of a union nut, two tailpieces and a gasket. This combination creates a robust barrier against electric currents, effectively preventing galvanic corrosion. They have a design with a female iron pipe thread to female brass pipe thread connection, facilitating seamless integration and secure attachment between different types of pipes. These dielectric unions have Buna-N gasket, preventing leakage.
Watts LF3003 Series dielectric unions are installed at the junction of pipes with varying metal compositions, such as water heaters or pumps, to isolate the metals and reduce potential corrosion caused by electrolysis. These unions effectively maintain water quality and extend the lifespan of plumbing systems by preventing leaks and deterioration due to the chemical reactions caused by metal interaction. The brand's LF3003 Series dielectric unions safeguard water distribution systems, ensuring reliability and durability. They come with a comprehensive assembly consisting of a union nut, two tailpieces and a gasket. This combination creates a robust barrier against electric currents, effectively preventing galvanic corrosion. They have a design with a female iron pipe thread to female brass pipe thread connection, facilitating seamless integration and secure attachment between different types of pipes. These dielectric unions have Buna-N gasket, preventing leakage.
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D| Style | Model | Pipe Size | Nut Material | Hex Size | Adapter Material | Fitting Side B Material | Inlet Material | Inlet Size | Outlet Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3003 1 1/4 | €151.29 | |||||||||
| B | LF3003 2 | €276.21 | |||||||||
| C | LF3003 1 1/2 | €149.99 | |||||||||
| D | 11/4 LF3003 | €105.97 | |||||||||
| C | LF3003 1 | €58.26 | |||||||||
| C | LF3003 1/2 | €37.18 | |||||||||
| C | 2 LF3003 | €177.65 | |||||||||
| C | LF3003 3/4 | €45.13 |
LF3008 Series Dielectric Unions
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C| Style | Model | Pipe Size | Hex Size | Connection Type | Body Material | Insulation Material | Gasket Material | Max. Pressure | Nut Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3008 3/4 | €56.85 | |||||||||
| B | LF3008 1 | €61.46 | |||||||||
| C | LF3008 1/2 | €45.64 | |||||||||
| C | 3/4 LF3008 | €53.80 |
LF3001A Series Dielectric Unions
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C| Style | Model | Pipe Size | Hex Size | Inlet Size | Nut Material | Outlet Size | Fitting Side A Nominal Pipe Size | Fitting Side B Nominal Pipe Size | Connection Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3001A 1 | €41.76 | |||||||||
| A | LF3001A 2 | €146.62 | |||||||||
| B | LF3001A 1/2 | €24.81 | |||||||||
| A | LF3001A 3/4 | €23.56 | |||||||||
| A | LF3001A 1 1/2 | €118.60 | |||||||||
| A | LF3001A 1 1/4 | €69.66 | |||||||||
| C | 11/2 LF 3001A-1 1/2" | €72.63 | |||||||||
| C | 11/4 LF 3001A-1 1/4" | €52.14 | |||||||||
| C | 1 LF 3001A-1" | €32.37 | |||||||||
| C | 1/2 LF 3001A-1/2" | €18.38 | |||||||||
| C | 2 LF 3001A-2" | €95.59 | |||||||||
| C | 3/4 LF 3001A-3/4" | €21.73 |
LF3006 Series Dielectric Unions
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H| Style | Model | Pipe Size | Nut Material | Hex Size | Fitting Side A Material | Fitting Side B Material | Adapter Material | Fitting Side A Nominal Pipe Size | Fitting Side B Nominal Pipe Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3006 3/4 | €45.64 | |||||||||
| B | LF3006 1/2 | €34.43 | |||||||||
| A | LF3006 2 | €180.14 | |||||||||
| A | LF3006 1 | €60.05 | |||||||||
| C | 1 1/2 LF3006 | €82.98 | |||||||||
| D | LF3006 1 1/4 | €58.11 | |||||||||
| E | 1 LF3006 | €42.63 | |||||||||
| F | 1/2 LF3006 | €28.86 | |||||||||
| G | 2 LF3006 | €170.11 | |||||||||
| H | 3/4 LF3006 | €32.31 |
LF301 Series Dielectric Unions
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B| Style | Model | Inlet Size | Outlet Size | Insulation Material | Max. Working Pressure | Adapter Material | Gasket Material | Inlet Material | Inlet Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF301 1 1/2 | €35.44 | |||||||||
| A | LF301 1 1/4 | €23.28 | |||||||||
| A | LF301 1 | €15.15 | |||||||||
| B | LF301 1/2 | €9.37 | |||||||||
| A | LF301 2 | €49.22 | |||||||||
| A | LF301 3/4 | €9.41 |
Gasket Kits
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IDUXLC Dielectric Pipe Fittings
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HDUXL Dielectric Pipe Fittings
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BRK-3100/3110/3200 Series Dielectric Union Repair Kit
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D| Style | Model | Kit Contents | Kit Type | Price | |
|---|---|---|---|---|---|
| A | INS-KIT 3/4 | €10.32 | |||
| B | INS-KIT 7/8 | €10.32 | |||
| C | INS-KIT 5/8 | €9.23 | |||
| D | INS-KIT 1/2 | €8.12 |
LF3007 Series Dielectric Unions
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B| Style | Model | Inlet Size | Outlet Size | Insulation Material | Max. Working Pressure | Adapter Material | Gasket Material | Inlet Material | Inlet Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3007 1/2 | €50.43 | |||||||||
| B | LF3007 3/4 | €56.45 |
3001A Series Dielectric Unions
AB| Style | Model | Adapter Material | Inlet Size | Outlet Size | Max. Working Pressure | Insulation Material | Gasket Material | Inlet Material | Inlet Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 3001A 1/2 | €19.44 | RFQ | ||||||||
| B | 3001A 1 1/2 | €97.44 | |||||||||
| B | 3001A 1 1/4 | €57.12 | |||||||||
| B | 3001A 2 | €120.44 |
LF3100 Series Dielectric Unions
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B| Style | Model | Inlet Size | Outlet Size | Max. Working Pressure | Insulation Material | Adapter Material | Gasket Material | Gasket Maximum Pressure | Gasket Maximum Temperature | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3100M3 2 1/2 | €439.52 | RFQ | ||||||||
| B | LF3100M3 3 | €602.83 | RFQ | ||||||||
| B | LF3100M3 4 | €1,595.52 | RFQ |
LF3110 Series Dielectric Unions
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C| Style | Model | Pipe Size | Connection Type | Body Material | Max. Pressure | Gasket Material | Max. Temp. | Gasket Maximum Pressure | Gasket Maximum Temperature | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | LF3110-LF 3 | €725.31 | RFQ | ||||||||
| B | LF3110 2 1/2 | €609.05 | |||||||||
| C | LF3110 3 | €590.62 |
RK-3000 Series Dielectric Union Repair Kit
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Y| Style | Model | Kit Contents | Kit Type | Ada Compliant | Price | |
|---|---|---|---|---|---|---|
| A | KIT GB-C | €15.86 | ||||
| B | KIT GA-D | €8.12 | ||||
| C | KIT GB-D | €21.40 | ||||
| D | KIT GA-H | €6.63 | ||||
| E | KIT GA-C | €6.63 | ||||
| F | KIT GB-F | €40.91 | ||||
| G | KIT GA-G | €5.90 | ||||
| H | KIT GB-A | €11.80 | ||||
| I | KIT GB-E | €26.18 | ||||
| J | KIT GA-J | €6.63 | ||||
| K | KIT GA-M | €15.86 | ||||
| L | KIT GA-E | €8.47 | ||||
| M | KIT GA-B | €4.53 | ||||
| N | KIT GA-R | €36.14 | ||||
| O | KIT GA-P | €36.14 | ||||
| P | KIT GA-Q | €41.30 | ||||
| Q | KIT GA-F | €10.69 | ||||
| R | KIT GA-L | €12.53 | ||||
| S | KIT GA-A | €5.50 | ||||
| T | KIT GB-B | €13.29 | ||||
| U | INK-G-KIT | €7.74 | ||||
| V | INK-E-KIT | €7.74 | ||||
| W | INK-C-KIT | €6.63 | ||||
| X | INK-B-KIT | €5.90 | ||||
| Y | INK-H-KIT | €8.83 |
A| Style | Model | Pipe Size | Hex Size | Connection Type | Gasket Material | Max. Pressure | Max. Temp. | Nut Material | Application | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1/2 LF 3005-1/2A | €17.02 | |||||||||
| A | 3/4 LF 3005-3/4A | €21.26 |
Dielectric Union, FIP x Solder
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DLF3100 Series, Dielectric Flange, FIP x Solder
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C| Style | Model | Pipe Size | Max. Pressure | Pipe Fitting Material | Fitting Side A Nominal Pipe Size | Fitting Side B Nominal Pipe Size | Connection Type | Body Material | Basic Pipe Fitting Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 2 1/2 LF3100 | €313.59 | |||||||||
| B | 2 LF 3100 2" | €335.75 | |||||||||
| C | 3 LF3100 | €395.99 |
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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