WATTS Dielectric Unions

Used with water heaters for separating two metal pipes of different materials and to prevent galvanic corrosion. Available in different connection types

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WATTS -

LF3100 Series, Dielectric Flange, FIP x Solder

StyleModelPipe SizeMax. PressurePipe Fitting MaterialFitting Side A Nominal Pipe SizeFitting Side B Nominal Pipe SizeConnection TypeBody MaterialBasic Pipe Fitting MaterialPrice
A2 1/2 LF31002 1/2"175 psiCopper, Iron--Fip x SolderCopper, IronMetal€344.44
B2 LF 3100 2"2"250 psiBrass, Malleable Iron2"2"Fip x Solder-Metal€362.23
C3 LF31003"175 psiCopper, Iron3"3"Fip x SolderCopper, IronMetal€434.96
StyleModelInlet SizeMax. Working PressureGasket MaterialGasket Maximum PressureGasket Maximum TemperatureInlet MaterialInlet Thread TypeInlet TypePrice
A3004 1 1/41 1/4"250 psiBuna N250 psi180°FIronNPTFemale Threaded€65.64
RFQ
A3004 1/21/2"250 psiBuna N250 psi180°FIronNPTFemale Threaded€32.83
RFQ
StyleModelInlet SizeOutlet SizeInsulation MaterialAdapter MaterialGasket MaterialInlet MaterialInlet TypeLeadPrice
ALF3005A 1/21/2"1/2"PolysulfoneSteelBuna NSteelMale ThreadedNot Present€22.91
RFQ
ALF3005A 3/43/4"3/4"PolysulfoneSteelBuna NSteelMale ThreadedNot Present€21.82
RFQ
WATTS -

RK-3100/3110/3200 Series Dielectric Union Repair Kit

StyleModelKit ContentsKit TypePrice
AINS-KIT 7/8100 Insulators Per KitInsulator Kit€10.32
BINS-KIT 1/2100 Insulators Per KitInsulator Kit€8.12
RFQ
CINS-KIT 3/4100 Insulators Per KitInsulator Kit€10.32
DINS-KIT 5/8100 Insulators Per KitInsulator Kit€9.23
WATTS -

LF3007 Series Dielectric Unions

StyleModelInlet SizeOutlet SizeInsulation MaterialMax. Working PressureAdapter MaterialGasket MaterialInlet MaterialInlet TypePrice
ALF3007 1/21/2"3/8"Polysulfone250 psiSteelBuna NIronMale Threaded€50.43
RFQ
BLF3007 3/43/4"1/2"Polysulfone-SteelBuna NIronMale Threaded€56.45
RFQ
WATTS -

LF3100 Series Dielectric Unions

StyleModelInlet SizeOutlet SizeMax. Working PressureInsulation MaterialAdapter MaterialGasket MaterialGasket Maximum PressureGasket Maximum TemperaturePrice
ALF3100M3 2 1/22 1/2"2 1/2"175 psiPolysulfoneCast IronBuna N250 psi180°F€439.52
RFQ
BLF3100M3 33"3"175 psiPolysulfoneCast IronBuna N250 psi180°F€602.83
RFQ
BLF3100M3 44"4"175 psiPolysulfoneCast IronBuna N250 psi180°F€1,595.52
RFQ
WATTS -

LF3110 Series Dielectric Unions

StyleModelPipe SizeConnection TypeBody MaterialMax. PressureGasket MaterialMax. Temp.Gasket Maximum PressureGasket Maximum TemperaturePrice
ALF3110-LF 3---175 psi--250 psi180°F€725.31
RFQ
BLF3110 2 1/22 1/2"SolderBrass175 psiBuna N180°F--€657.10
CLF3110 33"SolderBrass175 psiBuna N180°F--€637.20
WATTS -

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.

StyleModelPipe SizeNut MaterialHex SizeAdapter MaterialFitting Side B MaterialInlet MaterialInlet SizeOutlet SizePrice
ALF3003 2-Malleable Iron-Malleable Iron-Malleable Iron2"2"€276.21
RFQ
BLF3003 1 1/4-Malleable Iron-Steel-Steel1 1/4"1 1/4"€151.29
RFQ
CLF3003 1 1/21 1/2"Malleable Iron3 1/2"-----€161.81
D11/4 LF30031 1/4"Steel2 3/4"-Steel---€114.34
CLF3003 11"Steel2 1/4"-----€62.85
CLF3003 1/21/2"Steel1 5/8"-----€40.41
C2 LF30032"Malleable Iron4 1/8"-Malleable Iron---€191.68
CLF3003 3/43/4"Steel1 7/8"-----€48.69
WATTS -

LF301 Series Dielectric Unions

StyleModelInlet SizeOutlet SizeInsulation MaterialMax. Working PressureAdapter MaterialGasket MaterialInlet MaterialInlet TypePrice
ALF301 1 1/21 1/2"1 1/2"Plastic-SteelEPDMSteelFemale Threaded€35.44
RFQ
ALF301 1 1/41 1/4"1 1/4"Plastic-SteelEPDMSteelFemale Threaded€23.28
RFQ
ALF301 11"1"Plastic-SteelEPDMSteelFemale Threaded€15.15
RFQ
BLF301 1/21/2"1/2"Plastic250 psiSteelEPDMSteelFemale Threaded€9.37
RFQ
ALF301 22"2"Plastic-SteelEPDMSteelFemale Threaded€49.22
RFQ
ALF301 3/43/4"3/4"Plastic-SteelEPDMSteelFemale Threaded€9.41
RFQ
WATTS -

LF3001A Series Dielectric Unions

StyleModelPipe SizeHex SizeInlet SizeNut MaterialOutlet SizeFitting Side A Nominal Pipe SizeFitting Side B Nominal Pipe SizeConnection TypePrice
ALF3001A 1 1/2--1 1/2"Malleable Iron1 1/2"---€118.60
RFQ
ALF3001A 1--1"Steel1"---€41.76
RFQ
BLF3001A 1/2--1/2"Steel1/2"---€24.81
RFQ
ALF3001A 1 1/4--1 1/4"Steel1 1/4"---€69.66
RFQ
ALF3001A 2--2"Malleable Iron2"---€146.62
RFQ
ALF3001A 3/4--3/4"Steel3/4"---€23.56
RFQ
C11/2 LF 3001A-1 1/2"1 1/2"2 3/4"-----Fip x Solder€78.37
C11/4 LF 3001A-1 1/4"1 1/4"2 1/4"-----Fip x Solder€56.26
C1 LF 3001A-1"1"1 7/8"---1"1"Fip x Solder€35.16
C1/2 LF 3001A-1/2"1/2"1 1/2"-----Fip x Solder€19.83
C2 LF 3001A-2"2"3 1/2"---2"2"Fip x Solder€103.12
C3/4 LF 3001A-3/4"3/4"1 5/8"---3/4"3/4"Fip x Solder€23.61
WATTS -

LF3008 Series Dielectric Unions

StyleModelPipe SizeHex SizeConnection TypeBody MaterialInsulation MaterialGasket MaterialMax. PressureNut MaterialPrice
ALF3008 3/4----PolysulfoneBuna N250 psiBrass€56.85
RFQ
BLF3008 11"1 7/8"Fip x SolderLead Free Brass-Buna N250 psiBrass€99.46
CLF3008 1/21/2"1 1/2"Fip x SolderLead Free Brass-Buna N250 psiBrass€49.58
C3/4 LF30083/4"1 5/8"Fip x SolderLead Free Brass-Buna N250 psiBrass€58.04
WATTS -

Gasket Kits

StyleModelKit ContentsKit TypePrice
AKIT GB-H2 GB Gaskets Per KitGasket Kit€13.29
BKIT GB-P2 GB Gaskets Per KitGasket Kit€45.74
CKIT GB-K2 GB Gaskets Per KitGasket Kit€21.40
DKIT GB-M2 GB Gaskets Per KitGasket Kit€40.91
EKIT GB-R2 GB Gaskets Per KitGasket Kit€75.60
FKIT GB-G2 GB Gaskets Per KitGasket Kit€13.29
GKIT GB-Q2 GB Gaskets Per KitGasket Kit€48.29
HKIT GB-L2 GB Gaskets Per KitGasket Kit€26.18
IKIT GB-N2 GB Gaskets Per KitGasket Kit€39.07
WATTS -

LF4001E Series Dielectric Unions

StyleModelInlet SizeNut MaterialOutlet SizeInsulation MaterialMax. Working PressureAdapter MaterialGasket MaterialInlet MaterialPrice
ALF4001E 1 1/21 1/2"Malleable Iron1 1/2"Polysulfone250 psiSteelBuna NSteel€148.90
RFQ
ALF4001E 1 1/41 1/4"Steel1 1/4"Polysulfone250 psiSteelBuna NSteel€102.47
RFQ
ALF4001E 11"Steel1"Polysulfone250 psiSteelBuna NSteel€62.85
RFQ
ALF4001E 1/21/2"Steel1/2"Polysulfone250 psiSteelBuna NSteel€28.41
RFQ
BLF4001E 22 1/2"Malleable Iron2 1/2"Polysulfone-SteelBuna NSteel€208.95
RFQ
CLF4001E 3/43/4"Steel3/4"Polysulfone-SteelBuna NSteel€28.41
RFQ
WATTS -

3001A Series Dielectric Unions

StyleModelAdapter MaterialInlet SizeOutlet SizeMax. Working PressureInsulation MaterialGasket MaterialInlet MaterialInlet TypePrice
A3001A 1/2Malleable Iron1/2"-250 psiPolysulfoneBuna NIronFemale Threaded€19.44
RFQ
B3001A 1 1/2Steel1 1/2"1 1/2"--Buna NIronFemale Threaded€97.44
RFQ
B3001A 1 1/4Steel1 1/4"1 1/4"--Buna NIronFemale Threaded€57.12
RFQ
B3001A 2Steel2"2"--Buna NIronFemale Threaded€120.44
RFQ
WATTS -

RK-3000 Series Dielectric Union Repair Kit

StyleModelKit ContentsKit TypeAda CompliantPrice
AKIT GA-H---€6.63
RFQ
BKIT GB-C---€15.86
RFQ
CKIT GB-E---€26.18
RFQ
DKIT GB-F---€40.91
RFQ
EKIT GA-J---€6.63
RFQ
FKIT GA-D---€8.12
RFQ
GKIT GB-D---€21.40
RFQ
HKIT GA-C---€6.63
RFQ
IKIT GA-G---€5.90
RFQ
JKIT GB-A---€11.80
RFQ
KKIT GA-A2 GA Gaskets Per KitGasket Kit-€5.50
LKIT GA-F2 GA Gaskets Per KitGasket Kit-€10.69
MKIT GA-L2 GA Gaskets Per KitGasket Kit-€12.53
NKIT GA-B2 GA Gaskets Per KitGasket Kit-€4.53
OKIT GA-P2 GA Gaskets Per KitGasket Kit-€36.14
PKIT GA-Q2 GA Gaskets Per KitGasket Kit-€41.30
QKIT GA-R2 GA Gaskets Per KitGasket Kit-€36.14
RKIT GA-M2 GA Gaskets Per KitGasket Kit-€15.86
SKIT GA-E2 GA Gaskets Per KitGasket Kit-€8.47
TKIT GB-B2 GB Gaskets Per KitGasket Kit-€13.29
UINK-A-KIT2 Insulators Per KitInsulator Kit-€5.90
VINK-G-KIT2 Insulators Per KitInsulator KitN€7.74
WINK-E-KIT2 Insulators Per KitInsulator KitN€7.74
XINK-H-KIT2 Insulators Per KitInsulator KitN€8.83
YINK-F-KIT2 Insulators Per KitInsulator Kit-€8.83
WATTS -

LF3004 Series Dielectric Unions

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.

StyleModelPipe SizeBody MaterialNut MaterialHex SizeAdapter MaterialFitting Side A MaterialFitting Side B MaterialInlet MaterialPrice
ALF3004 1--Steel-Steel--Steel€60.05
RFQ
BLF3004 1 1/4--Malleable Iron-Steel--Steel€80.07
RFQ
ALF3004 1 1/2--Malleable Iron-Malleable Iron--Malleable Iron€121.69
RFQ
ALF3004 1/2--Steel-Steel--Steel€40.02
RFQ
BLF3004 3/4--Steel-Steel--Steel€45.64
RFQ
C11/2 LF30041 1/2"Malleable IronMalleable Iron3 1/2"-Malleable IronMalleable Iron-€90.80
B1 1/4 LF30041 1/4"IronMalleable Iron2 3/4"-SteelSteel-€69.18
D1 LF 3004-11"-Steel2 1/4"-SteelSteel-€92.19
D1/2 LF 3004-1/21/2"-Steel1 5/8"-SteelSteel-€47.45
ELF3004 22"Malleable IronMalleable Iron4 1/8"----€144.78
D3/4 LF 3004 3/43/4"-Steel1 7/8"-SteelSteel-€54.11
WATTS -

LF3002 Series Dielectric Unions

StyleModelPipe SizeConnection TypeInsulation MaterialBody MaterialGasket MaterialMax. PressureNut MaterialAdapter MaterialPrice
ALF3002 3/4--Polysulfone-Buna N250 psiSteelSteel€38.83
RFQ
BLF3002 11"Fip x Solder-Copper, IronBuna N250 psiSteel-€34.25
WATTS -

LF3006 Series Dielectric Unions

StyleModelPipe SizeNut MaterialHex SizeFitting Side A MaterialFitting Side B MaterialAdapter MaterialFitting Side A Nominal Pipe SizeFitting Side B Nominal Pipe SizePrice
ALF3006 3/4-Steel---Steel--€45.64
RFQ
BLF3006 1/2-Steel---Steel--€34.43
RFQ
ALF3006 1-Steel---Steel--€60.05
RFQ
ALF3006 2-Malleable Iron---Malleable Iron--€180.14
RFQ
C1 1/2 LF30061 1/2"Malleable Iron3 1/2"Malleable IronMalleable Iron---€89.52
DLF3006 1 1/41 1/4"Steel2 3/4"-----€62.69
E1 LF30061"Steel2 1/4"SteelSteel-1"1"€46.00
F1/2 LF30061/2"Steel1 5/8"SteelSteel-1/2"1/2"€31.14
G2 LF30062"Malleable Iron4 1/8"Malleable IronMalleable Iron-2"2"€183.53
H3/4 LF30063/4"Steel1 7/8"SteelSteel-3/4"3/4"€34.86
StyleModelPipe SizeHex SizeConnection TypeGasket MaterialMax. PressureMax. Temp.Nut MaterialApplicationPrice
A1/2 LF 3005-1/2A1/2"1 1/2"MIP x SolderBuna N250 psi180°FSteel-€18.48
A3/4 LF 3005-3/4A3/4"1 5/8"MIP x SolderBuna N250 psi180°FSteelNon-Potable Water, Steam€22.93
WATTS -

Dielectric Union, 3/4 Inch Size

ModelItemPrice (ex. VAT)
LF305 3/4BR9GQA€12.61
WATTS -

Dielectric Union, 3/4 X 1/2 Inch Size

ModelItemPrice (ex. VAT)
3002 3/4BR6ZUA€31.20
RFQ
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