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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.
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B| Style | Model | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | LF301 1 | £15.24 | |||
| A | LF301 1 1/2 | £35.66 | |||
| A | LF301 1 1/4 | £23.43 | |||
| B | LF301 1/2 | £9.42 | |||
| A | LF301 2 | £49.52 | |||
| A | LF301 3/4 | £9.46 |
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C| Style | Model | Body Material | Max. Pressure | Pipe Size | Price (inc. VAT) | |
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| A | 2 1/2 LF3100 | £315.49 | ||||
| B | 3 LF3100 | £398.39 | ||||
| C | 2 LF 3100 2" | £292.75 |
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B| Style | Model | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | LF3100M3 2 1/2 | £442.18 | RFQ
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| B | LF3100M3 3 | £606.48 | RFQ
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| B | LF3100M3 4 | £1,605.19 | RFQ
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H| Style | Model | Body Material | Gasket Material | Hex Size | Inlet Material | Inlet Size | Outlet Material | Outlet Size | Pipe Size | Price (inc. VAT) | |
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| A | LF3006 2 | £181.23 | |||||||||
| A | LF3006 3/4 | £45.92 | |||||||||
| B | LF3006 1/2 | £34.64 | |||||||||
| A | LF3006 1 | £60.42 | |||||||||
| C | 2 LF3006 | £148.33 | |||||||||
| D | 1 1/2 LF3006 | £72.35 | |||||||||
| E | 1/2 LF3006 | £25.17 | |||||||||
| F | 3/4 LF3006 | £28.18 | |||||||||
| G | 1 LF3006 | £37.17 | |||||||||
| H | LF3006 1 1/4 | £50.66 |
A| Style | Model | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | LF3005A 1/2 | £23.05 | |||
| A | LF3005A 3/4 | £21.95 |
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C| Style | Model | Gasket Material | Hex Size | Inlet Size | Outlet Size | Pipe Size | Price (inc. VAT) | |
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| A | 3/4 LF 3001A-3/4" | £18.95 | ||||||
| A | 11/4 LF 3001A-1 1/4" | £45.46 | ||||||
| A | 2 LF 3001A-2" | £83.34 | ||||||
| B | LF3001A 2 | £147.51 | ||||||
| B | LF3001A 1 1/4 | £70.08 | ||||||
| B | LF3001A 3/4 | £23.70 | ||||||
| A | 1/2 LF 3001A-1/2" | £16.02 | ||||||
| A | 1 LF 3001A-1" | £28.22 | ||||||
| A | 11/2 LF 3001A-1 1/2" | £63.32 | ||||||
| B | LF3001A 1 | £42.01 | ||||||
| B | LF3001A 1 1/2 | £119.32 | ||||||
| C | LF3001A 1/2 | £24.96 |
A| Style | Model | Hex Size | Pipe Size | Price (inc. VAT) | |
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| A | 1/2 LF 3005-1/2A | £14.84 | |||
| A | 3/4 LF 3005-3/4A | £18.54 |
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D| Style | Model | Price (inc. VAT) | |
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| A | INS-KIT 1/2 | £8.17 | |
| B | INS-KIT 7/8 | £10.38 | |
| C | INS-KIT 3/4 | £10.38 | |
| D | INS-KIT 5/8 | £9.28 |
Watts LF3004 Series dielectric unions are used in commercial and industrial applications to prevent accelerated corrosion and deterioration in piping systems caused by galvanic and stray currents. They are installed between pipes made from dissimilar metals. These dielectric unions feature steel / iron / galvanised malleable iron / malleable iron & galvanised steel construction for structural rigidity and long service life. They have polysulfone insulation to prevent electrical hazards during operations and come with Buna-N gaskets for secure & reliable sealing between the pipes.
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E| Style | Model | Body Material | Gasket Material | Hex Size | Inlet Material | Inlet Size | Outlet Material | Outlet Size | Pipe Size | Price (inc. VAT) | |
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| A | LF3004 1 1/2 | £122.43 | |||||||||
| B | LF3004 1 1/4 | £80.56 | |||||||||
| A | LF3004 1 | £60.42 | |||||||||
| A | LF3004 1/2 | £40.26 | |||||||||
| B | LF3004 3/4 | £45.92 | |||||||||
| C | LF3004 2 | £117.00 | |||||||||
| D | 11/2 LF3004 | £73.38 | |||||||||
| B | 1 1/4 LF3004 | £55.91 | |||||||||
| E | 1 LF 3004-1 | £74.51 | |||||||||
| E | 3/4 LF 3004 3/4 | £43.72 | |||||||||
| E | 1/2 LF 3004-1/2 | £38.35 |
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| A | LF3002 3/4 | £39.06 | |
| B | LF3002 1 | £27.48 |
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 | Body Material | Gasket Material | Hex Size | Inlet Material | Inlet Size | Outlet Size | Pipe Size | Price (inc. VAT) | |
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| A | LF3003 1 1/4 | £152.21 | ||||||||
| B | LF3003 2 | £277.88 | ||||||||
| C | 2 LF3003 | £154.90 | ||||||||
| C | LF3003 1 1/2 | £130.77 | ||||||||
| D | 11/4 LF3003 | £92.40 | ||||||||
| C | LF3003 1/2 | £32.41 | ||||||||
| C | LF3003 3/4 | £39.35 | ||||||||
| C | LF3003 1 | £50.80 |
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C| Style | Model | Hex Size | Pipe Size | Price (inc. VAT) | |
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| A | LF3008 3/4 | £57.19 | |||
| B | LF3008 1/2 | £39.80 | |||
| B | 3/4 LF3008 | £46.91 | |||
| C | LF3008 1 | £53.58 |
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C| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | LF4001E 2 | £210.22 | ||||
| B | LF4001E 3/4 | £28.59 | ||||
| C | LF4001E 1 | £63.23 | ||||
| C | LF4001E 1 1/4 | £103.09 | ||||
| C | LF4001E 1/2 | £28.59 | ||||
| C | LF4001E 1 1/2 | £149.80 |
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B| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | LF3007 3/4 | £56.79 | ||||
| B | LF3007 1/2 | £50.74 |
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B| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. VAT) | |
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| A | 3001A 1 1/4 | £57.47 | ||||
| A | 3001A 2 | £121.17 | ||||
| A | 3001A 1 1/2 | £98.03 | ||||
| B | 3001A 1/2 | £19.56 | RFQ
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HA| Style | Model | Inlet Size | Price (inc. VAT) | |
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| A | 3004 1 1/4 | £66.03 | RFQ
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| A | 3004 1/2 | £33.03 | RFQ
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X| Style | Model | Item | Price (inc. VAT) | |
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| A | KIT GA-C | £6.67 | ||
| B | KIT GA-B | £4.56 | ||
| C | KIT GA-M | £15.96 | ||
| D | KIT GA-L | £12.61 | ||
| E | KIT GA-R | £36.35 | ||
| F | KIT GA-Q | £41.55 | ||
| G | KIT GA-J | £6.67 | ||
| H | KIT GB-F | £41.15 | ||
| I | KIT GB-E | £26.33 | ||
| J | KIT GB-C | £15.96 | ||
| K | KIT GB-B | £13.37 | ||
| G | KIT GA-G | £5.94 | ||
| L | KIT GB-A | £11.87 | ||
| M | KIT GA-F | £10.76 | ||
| N | KIT GA-P | £36.35 | ||
| O | KIT GB-D | £21.53 | ||
| P | KIT GA-D | £8.17 | ||
| Q | KIT GA-H | £6.67 | ||
| R | KIT GA-A | £5.54 | ||
| S | KIT GA-E | £8.53 | ||
| T | INK-D-KIT | £6.67 | ||
| U | INK-F-KIT | £8.88 | ||
| V | INK-A-KIT | £5.94 | ||
| W | INK-J-KIT | £43.03 | ||
| X | INK-C-KIT | £6.67 |
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C| Style | Model | Item | Pipe Size | Price (inc. VAT) | |
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| A | LF3110 2 1/2 | £531.05 | |||
| B | LF3110 3 | £514.98 | |||
| C | LF3110-LF 3 | £729.71 | RFQ
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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.
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.
Tailpieces allow connecting ends of two dissimilar pipe systems so that liquid can be safely transported with minimal leakage.
When dielectric unions are connected between two dissimilar pipes, they ground the electric current and break continuity for complete insulation between the two environments.