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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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C| Style | Model | Body Material | Max. Pressure | Pipe Size | Price (inc. GST) | |
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| A | 2 1/2 LF3100 | SGD 490.27 | ||||
| B | 3 LF3100 | SGD 619.10 | ||||
| C | 2 LF 3100 2" | SGD 454.93 |
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C| Style | Model | Item | Pipe Size | Price (inc. GST) | |
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| A | LF3110 2 1/2 | SGD 825.25 | |||
| B | LF3110 3 | SGD 800.28 | |||
| C | LF3110-LF 3 | SGD 1133.98 | RFQ |
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D| Style | Model | Price (inc. GST) | |
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| A | INS-KIT 5/8 | SGD 14.43 | |
| B | INS-KIT 7/8 | SGD 16.13 | |
| C | INS-KIT 3/4 | SGD 16.13 | |
| D | INS-KIT 1/2 | SGD 12.69 |
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Y| Style | Model | Item | Price (inc. GST) | |
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| A | KIT GA-G | SGD 9.22 | ||
| B | KIT GB-D | SGD 33.46 | ||
| C | KIT GB-A | SGD 18.45 | ||
| D | KIT GA-B | SGD 7.09 | ||
| E | KIT GA-F | SGD 16.72 | ||
| F | KIT GA-R | SGD 56.49 | ||
| G | KIT GA-P | SGD 56.49 | ||
| H | KIT GA-Q | SGD 64.57 | ||
| I | KIT GA-M | SGD 24.80 | ||
| J | KIT GA-E | SGD 13.25 | ||
| K | KIT GA-L | SGD 19.60 | ||
| L | KIT GA-C | SGD 10.37 | ||
| M | KIT GA-D | SGD 12.69 | ||
| N | KIT GA-H | SGD 10.37 | ||
| O | KIT GA-J | SGD 10.37 | ||
| P | KIT GB-B | SGD 20.77 | ||
| Q | KIT GA-A | SGD 8.61 | ||
| R | KIT GB-C | SGD 24.80 | ||
| S | KIT GB-E | SGD 40.92 | ||
| T | KIT GB-F | SGD 63.96 | ||
| U | INK-D-KIT | SGD 10.37 | ||
| V | INK-A-KIT | SGD 9.22 | ||
| W | INK-G-KIT | SGD 12.10 | ||
| X | INK-E-KIT | SGD 12.10 | ||
| Y | INK-H-KIT | SGD 13.81 |
A| Style | Model | Inlet Size | Price (inc. GST) | |
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| A | 3004 1 1/4 | SGD 102.62 | RFQ | |
| A | 3004 1/2 | SGD 51.33 | RFQ |
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B| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. GST) | |
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| A | LF3007 3/4 | SGD 88.26 | ||||
| B | LF3007 1/2 | SGD 78.84 |
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B| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. GST) | |
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| A | 3001A 1 1/2 | SGD 152.33 | ||||
| A | 3001A 2 | SGD 188.31 | ||||
| A | 3001A 1 1/4 | SGD 89.31 | ||||
| B | 3001A 1/2 | SGD 30.40 | RFQ |
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B| Style | Model | Inlet Size | Outlet Size | Price (inc. GST) | |
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| A | LF3100M3 2 1/2 | SGD 687.16 | RFQ | ||
| B | LF3100M3 3 | SGD 942.49 | RFQ | ||
| B | LF3100M3 4 | SGD 2494.50 | RFQ |
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A| Style | Model | Hex Size | Pipe Size | Price (inc. GST) | |
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| A | 1/2 LF 3005-1/2A | SGD 23.06 | |||
| A | 3/4 LF 3005-3/4A | SGD 28.81 |
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. GST) | |
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| A | LF3004 3/4 | SGD 71.35 | |||||||||
| A | LF3004 1 1/4 | SGD 125.19 | |||||||||
| B | LF3004 1 1/2 | SGD 190.26 | |||||||||
| B | LF3004 1/2 | SGD 62.56 | |||||||||
| B | LF3004 1 | SGD 93.89 | |||||||||
| C | 11/2 LF3004 | SGD 114.04 | |||||||||
| D | LF3004 2 | SGD 181.81 | |||||||||
| A | 1 1/4 LF3004 | SGD 86.88 | |||||||||
| E | 1/2 LF 3004-1/2 | SGD 59.59 | |||||||||
| E | 3/4 LF 3004 3/4 | SGD 67.95 | |||||||||
| E | 1 LF 3004-1 | SGD 115.79 |
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B| Style | Model | Price (inc. GST) | |
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| A | LF3002 1 | SGD 42.70 | |
| B | LF3002 3/4 | SGD 60.70 |
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. GST) | |
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| A | LF3003 1 1/4 | SGD 236.53 | ||||||||
| B | LF3003 2 | SGD 431.84 | ||||||||
| C | 2 LF3003 | SGD 240.72 | ||||||||
| C | LF3003 1 1/2 | SGD 203.23 | ||||||||
| C | LF3003 1/2 | SGD 50.37 | ||||||||
| C | LF3003 3/4 | SGD 61.16 | ||||||||
| C | LF3003 1 | SGD 78.94 | ||||||||
| D | 11/4 LF3003 | SGD 143.58 |
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C| Style | Model | Hex Size | Pipe Size | Price (inc. GST) | |
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| A | LF3008 3/4 | SGD 88.87 | |||
| B | LF3008 1/2 | SGD 61.84 | |||
| B | 3/4 LF3008 | SGD 72.90 | |||
| C | LF3008 1 | SGD 83.27 |
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C| Style | Model | Gasket Material | Inlet Size | Outlet Size | Price (inc. GST) | |
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| A | LF4001E 2 | SGD 326.68 | ||||
| B | LF4001E 3/4 | SGD 44.42 | ||||
| C | LF4001E 1/2 | SGD 44.42 | ||||
| C | LF4001E 1 | SGD 98.25 | ||||
| C | LF4001E 1 1/2 | SGD 232.79 | ||||
| C | LF4001E 1 1/4 | SGD 160.20 |
A| Style | Model | Inlet Size | Outlet Size | Price (inc. GST) | |
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| A | LF3005A 1/2 | SGD 35.82 | |||
| A | LF3005A 3/4 | SGD 34.11 |
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C| Style | Model | Gasket Material | Hex Size | Inlet Size | Outlet Size | Pipe Size | Price (inc. GST) | |
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| A | 1/2 LF 3001A-1/2" | SGD 24.90 | ||||||
| A | 3/4 LF 3001A-3/4" | SGD 29.44 | ||||||
| A | 1 LF 3001A-1" | SGD 43.85 | ||||||
| A | 11/4 LF 3001A-1 1/4" | SGD 70.65 | ||||||
| A | 11/2 LF 3001A-1 1/2" | SGD 98.41 | ||||||
| A | 2 LF 3001A-2" | SGD 129.52 | ||||||
| B | LF3001A 1 | SGD 65.29 | ||||||
| B | LF3001A 2 | SGD 229.23 | ||||||
| B | LF3001A 1 1/2 | SGD 185.43 | ||||||
| B | LF3001A 1 1/4 | SGD 108.90 | ||||||
| B | LF3001A 3/4 | SGD 36.84 | ||||||
| C | LF3001A 1/2 | SGD 38.79 |
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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. GST) | |
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| A | LF3006 2 | SGD 281.64 | |||||||||
| A | LF3006 3/4 | SGD 71.35 | |||||||||
| A | LF3006 1 | SGD 93.89 | |||||||||
| B | LF3006 1/2 | SGD 53.83 | |||||||||
| C | 1 1/2 LF3006 | SGD 112.44 | |||||||||
| D | 2 LF3006 | SGD 230.50 | |||||||||
| E | 1/2 LF3006 | SGD 39.11 | |||||||||
| F | 3/4 LF3006 | SGD 43.79 | |||||||||
| G | 1 LF3006 | SGD 57.77 | |||||||||
| H | LF3006 1 1/4 | SGD 78.73 |
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.