Backflow Preventers
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WATTS Backflow Preventers

Designed to prevent potable water contamination from the reverse flow of polluted water. Capable of bearing up to 180 psi pressures and have a maximum operating temperature of 180 degrees F

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Watts backflow preventers are designed to stop potable water contamination from the reverse flow of polluted water. They are employed in industrial settings where chemicals are connected to water...Read more
WATTS -

Backflow Preventer Accessories

StyleModelConnection TypeItemLengthMaterialMax. PressureSizeWidthPrice (ex. VAT)
A1/4 LFTCMNPTTest Cock1.75"Copper Silicon Alloy175 psi1/4"1"€105.42
BLFTC 2 1/2-4NptTest Cock1.625"Bronze175 psi1/2"1"€166.28
BLFTC 6-10NptTest Cock-Bronze-3/4"-€156.64
C909 AGM 8-10 909NptAir Gap11.25"Cast Iron175 psi4mm7.38"€741.69
D4 909 AGKNptAir Gap9.625"Cast Iron140 psi4" to 6"6.38"€474.55
E909 AGK 4-6 8-10 M1NptAir Gap9.625"Cast Iron175 psi3"6.38"€591.72
F1/4 LF-TCNptTest Cock-Bronze-1/4"-€88.53
GRK-TC-P Plastci Cap Tether 1/8 1/4 NPTNptCap Tether-Plastic-1/8" to 1/4"-€4.42
H1/8 LF-NPT-TCNptTest Cock-Bronze-1/8"-€68.49
IRK-SAE-TC 1/8 SAESAETest Cock11.25"Bronze-1/8"7.38"€13.42
JSAE-TC Brass Cap 1/8 SAESAECap-Brass-1/8"-€5.67
KSAE-TC Plastic Cap 1/8 SAESAECap-Brass-1/8"-€5.71
LSAE-TC-Adapter 1/4SAEAdapter-Bronze-1/4"-€87.46
WATTS -

994 Series Reduced Pressure Zone Assemblies

StyleModelInlet ConnectionInlet SizeInlet TypeOutlet ConnectionOutlet SizeOutlet TypeTypeValve TypePrice (ex. VAT)
A994-DOSY 4Flanged Joint4"Flanged JointFlanged Joint4"Flanged JointValve to AccessoryOutside Stem And Yoke Gate Valve€7,613.91
RFQ
A994-OSY 10Flanged Joint10"Flanged JointFlanged Joint10"Flanged JointValve to AccessoryOutside Stem And Yoke Gate Valve€27,009.13
RFQ
B994-NRS 8Flanged Joint8"Flanged JointFlanged Joint8"Flanged JointValve to AccessoryNon Rising Stem Gate Valve€18,654.08
RFQ
A994-DOSY 3Flanged Joint3"Flanged JointFlanged Joint3"Flanged JointValve to AccessoryOutside Stem And Yoke Gate Valve€6,883.32
RFQ
C994-LF 10Flanged Joint10"Flanged Joint-10"-Valve to AccessoryNo Shutoff Valve€20,291.02
RFQ
A994-OSY 8Flanged Joint8"Flanged JointFlanged Joint8"Flanged JointKitOutside Stem And Yoke Gate Valve€19,819.09
RFQ
A994-OSY 3Flanged Joint3"Flanged JointFlanged Joint3"Flanged JointKitOutside Stem And Yoke Gate Valve€6,433.11
RFQ
D994-NRS 2 1/2Flanged Joint2 1/2"Flanged JointFlanged Joint2-1/2"Flanged JointValve to AccessoryNon Rising Stem Gate Valve€5,176.32
RFQ
A994-OSY 2 1/2Flanged Joint2 1/2"Flanged JointFlanged Joint2-1/2"Flanged JointKitOutside Stem And Yoke Gate Valve€5,532.61
RFQ
A994-DOSY 2 1/2Flanged Joint2 1/2"Flanged JointFlanged Joint2-1/2"Flanged JointValve to AccessoryOutside Stem And Yoke Gate Valve€5,920.71
RFQ
E994-LF 8Flanged Joint8"Flanged Joint-8"-Valve to AccessoryNo Shutoff Valve€15,616.93
RFQ
B994-NRS 6Flanged Joint6"Flanged JointFlanged Joint6"Flanged JointValve to AccessoryNon Rising Stem Gate Valve€10,656.44
RFQ
A994-OSY 6Flanged Joint6"Flanged JointFlanged Joint6"Flanged JointKitOutside Stem And Yoke Gate Valve€11,320.76
RFQ
C994-LF 6Flanged Joint6"Flanged Joint-6"-Valve to AccessoryNo Shutoff Valve€8,822.37
RFQ
A994-OSY 4Flanged Joint4"Flanged JointFlanged Joint4"Flanged JointKitOutside Stem And Yoke Gate Valve€7,113.98
RFQ
B994-NRS 3Flanged Joint3"Flanged JointFlanged Joint3"Flanged JointValve to AccessoryNon Rising Stem Gate Valve€5,844.76
RFQ
A994-DNRS 3Flanged Joint3"Flanged JointFlanged Joint3"Flanged JointValve to AccessoryNon Rising Stem Gate Valve€5,844.76
RFQ
A994-OSY-GXG 3Grooved Joint3"Grooved JointGrooved Joint3"Grooved JointValve to AccessoryOutside Stem And Yoke Gate Valve€6,883.32
RFQ
A994-OSY-GXG 8Grooved Joint8"Grooved JointGrooved Joint8"Grooved JointValve to AccessoryOutside Stem And Yoke Gate Valve€21,206.63
RFQ
A994-OSY-GXG 4Grooved Joint4"Grooved JointGrooved Joint4"Grooved JointValve to AccessoryOutside Stem And Yoke Gate Valve€7,613.91
RFQ
A994-OSY-GXG 2 1/2Grooved Joint2 1/2"Grooved JointGrooved Joint2-1/2"Grooved JointValve to AccessoryOutside Stem And Yoke Gate Valve€5,920.71
RFQ
A994-OSY-GXG 6Grooved Joint6"Grooved JointGrooved Joint6"Grooved JointValve to AccessoryOutside Stem And Yoke Gate Valve€12,113.51
RFQ
WATTS -

Double Check Valve Backflow Preventer Assemblies

StyleModelBody MaterialDisc MaterialInlet SizeItemMax. Temp.Min. Temp.Seat MaterialPrice (ex. VAT)
A200-LBV 2BronzeSilicone2"Double Check Valve Assembly180° F33° FRubber€816.93
RFQ
B870V-4-DC-LG-DIN-N&VDuctile IronEPDM4"Reduced Press. Zone Assembly140° F32° FStainless Steel€3,063.24
RFQ
WATTS -

5000SS Series Reduced Pressure Detector Assemblies

StyleModelInlet ConnectionInlet SizePrice (ex. VAT)
A5000SS-DOSY-FXG-GPM 3Flanged Joint3"€6,499.38
RFQ
B5000SS-DOSY-FXG-GPM 6Flanged Joint6"€11,248.95
RFQ
C5000SS-DOSY-GXG-GPM 4Grooved Joint4"€8,198.11
RFQ
D5000SS-DOSY-GXG-GPM 6Grooved Joint6"€12,036.16
RFQ
WATTS -

3000SE Series Double Check Detector Backflow Preventer Assemblies

StyleModelInlet ConnectionPrice (ex. VAT)
A3000SE-LG-CFM 2 1/2-€6,172.08
RFQ
B3000SE-OSY-CFM 2 1/2-€8,152.54
RFQ
C3000SE-OSY-LM 2 1/2Flanged Joint€8,004.76
RFQ
D3000SE-LG-LM 2 1/2Flanged Joint€6,025.69
RFQ
E3000SE-OSY-GPM 2 1/2Flanged Joint€8,152.54
RFQ
F3000SE-LG-GPM 2 1/2Grooved Joint€6,172.08
RFQ
WATTS -

200B Series Double Check Valve Assemblies

StyleModelInlet SizePrice (ex. VAT)
A200B 11"€459.91
RFQ
A200B 22"€955.01
RFQ
B200B 3/43/4"€406.72
RFQ
WATTS -

4000SS Series Reduced Pressure Zone Assemblies

StyleModelInlet SizePrice (ex. VAT)
A4000SS-F-OSY 44"€6,648.54
RFQ
B4000SS-LG 1010"€19,388.91
RFQ
A4000SS-OSY 1010"€26,497.22
RFQ
C4000SS-NRS 1010"€26,211.30
RFQ
WATTS -

5000SS Series Reduced Pressure Zone Assemblies

StyleModelInlet SizePrice (ex. VAT)
A5000SS-LG-GPM 2 1/22 1/2"€4,774.40
RFQ
B5000SS-OSY-GPM 2 1/22 1/2"€5,879.27
RFQ
A5000SS-LG-GPM 33"€5,228.79
RFQ
C5000SS-OSY-GPM 33"€6,499.38
RFQ
C5000SS-OSY-GPM 44"€7,662.27
RFQ
A5000SS-LG-GPM 44"€6,236.97
RFQ
A5000SS-LG-GPM 66"€9,036.44
RFQ
C5000SS-OSY-GPM 66"€11,248.95
RFQ
WATTS -

957 Series Reduced Pressure Zone Assemblies

StyleModelBody StyleInlet ConnectionInlet SizeInlet TypeItemLengthMax. Temp.Max. Working PressurePrice (ex. VAT)
A957-NRS 8Inline-8"Grooved JointReduced Press. Zone Assembly-110 Degree F12.1 Bar€11,735.83
RFQ
B957-OSY 10InlineGrooved Joint10"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€19,769.79
RFQ
B957-DOSY 8InlineGrooved Joint8"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€16,080.37
RFQ
C957-NRS-GXG 6InlineGrooved Joint6"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€8,714.65
RFQ
C957-OSY-GXG 3InlineGrooved Joint3"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€5,260.56
RFQ
C957-OSY-GXG 2 1/2InlineGrooved Joint2 1/2"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€4,706.74
RFQ
D957-DNRS 4InlineFlanged Joint4"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€3,436.72
RFQ
E957-DNRS 3InlineFlanged Joint3"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€2,711.13
RFQ
E957-NRS 4InlineFlanged Joint4"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€3,436.72
RFQ
B957-DOSY 6InlineGrooved Joint6"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€10,463.09
RFQ
F957-NRS-S 2 1/2Inline-2-1/2"Grooved JointReduced Press. Zone Assembly-110 Degree F12.1 Bar€3,553.52
RFQ
F957-NRS-S 3Inline-3"Grooved JointReduced Press. Zone Assembly-110 Degree F12.1 Bar€4,335.23
RFQ
C957-BFG 4Inline-4"Grooved JointReduced Press. Zone Assembly-110 Degree F12.1 Bar€6,039.49
RFQ
A957-NRS 6Inline-6"Flanged JointReduced Press. Zone Assembly-140 Degree F12.1 Bar€6,706.81
RFQ
G957-OSY 4InlineFlanged Joint4"Flanged JointBackflow Preventer-140° F175 PSI€6,041.90
B957-OSY 8InlineFlanged Joint8"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€16,104.32
RFQ
G957-OSY 3Inline-3"Flanged JointReduced Press. Zone Assembly31 11/16"140 Degree F12.1 Bar€4,465.88
C957-OSY-FXG 6InlineFlanged Joint6"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€9,260.18
RFQ
C957-OSY-GXG 8InlineGrooved Joint8"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€16,080.37
RFQ
C957-OSY-GXG 4InlineGrooved Joint4"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€5,821.28
RFQ
C957-OSY-GXG 6InlineGrooved Joint6"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€9,260.18
RFQ
E957-DNRS 2 1/2InlineFlanged Joint2 1/2"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€2,582.10
RFQ
E957-DNRS 10InlineFlanged Joint10"Flanged JointReduced Press. Zone Assembly-140° F175 PSI€37,244.80
RFQ
B957-DOSY 3InlineGrooved Joint3"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€5,945.56
RFQ
B957-DOSY 4InlineGrooved Joint4"Grooved JointReduced Press. Zone Assembly-140° F175 PSI€6,573.98
RFQ
WATTS -

LF909 Small Series Reduced Pressure Zone Assemblies

StyleModelLengthSizeWidth
A2 1/2 LF909-DNRS41.25"2.5"13 1/16"
RFQ
B6 LF909-DOSY66"625.375"
RFQ
WATTS -

909 Large Series Reduced Pressure Zone Assemblies

StyleModelInlet SizeMax. Temp.Max. Working PressureMin. Temp.Outlet SizeTypeValve TypePrice (ex. VAT)
A909-DNRS-S-FDA 33"110 Degree F12.06 Bar33 Degree F3"Valve to AccessoryNon Rising Stem Gate Valve€11,432.60
RFQ
B909-DNRS-S 44"110 Degree F12.06 Bar33 Degree F4"Valve to AccessoryNon Rising Stem Gate Valve€9,439.71
RFQ
CSR909-OSY 44"110° F175 PSI33° F4"Valve to AccessoryOutside Stem And Yoke Gate Valve€14,885.34
RFQ
D909-DNRS-S-FDA 44"110° F175 PSI33° F4"KitNon Rising Stem Gate Valve€14,511.08
RFQ
A909-DNRS-S-FDA 66"110 Degree F12.06 Bar33 Degree F6"Valve to AccessoryNon Rising Stem Gate Valve€21,603.63
RFQ
WATTS -

Ames Colt Series LFC500 Reduced Pressure Detector Assemblies

StyleModelInlet SizeMax. Temp.Price (ex. VAT)
ALFC500-OSY-GPM 2 1/22 1/2"110° F€5,133.49
RFQ
ALFC500-OSY-CFM 2 1/22 1/2"110° F€5,133.49
RFQ
ALFC500-OSY-CFM 33"110° F€5,672.12
RFQ
ALFC500-OSY-GPM 33"110° F€5,672.12
RFQ
ALFC500-DOSY-C 44"110° F€7,554.53
RFQ
BLFC500-DOSY-LM 44"110° F€7,438.53
RFQ
ALFC500-OSY-CFM 44"110° F€6,687.21
RFQ
ALFC500-OSY-GPM 44"110° F€6,687.21
RFQ
ALFC500-OSY-CFM 66"110° F€9,818.13
RFQ
ALFC500-DOSY-C 66"110° F€11,094.25
RFQ
ALFC500-OSY-GPM 66"110° F€9,818.13
RFQ
ALFC500-OSY-CFM 88"110° F€17,458.09
RFQ
ALFC500-OSY-GPM 88"110° F€17,458.09
RFQ
ALFC500-DOSY-C 88"140° F€17,458.09
RFQ
ALFC500-OSY-GPM 1010"110° F€24,904.52
RFQ
ALFC500-OSY-CFM 1010"110° F€24,904.52
RFQ
StyleModelInlet SizeMax. Temp.Price (ex. VAT)
ALFC500N-OSY-CFM 44"110° F€7,381.91
RFQ
ALFC500N-DOSY-LM 66"140° F€12,240.55
RFQ
ALFC500N-OSY-CFM 66"110° F€10,943.72
RFQ
ALFC500N-OSY-GPM 88"110° F€19,021.76
RFQ
ALFC500N-DOSY-C 88"140° F€19,021.76
RFQ
ALFC500N-OSY-GPM 1010"110° F€28,440.68
RFQ
WATTS -

719 Series Double Check Valve Assemblies

Watts 719 Series double check valve assemblies are used in plumbing systems to prevent the backflow of water and protect the potable water supply from contamination. These backflow preventers feature bronze alloy construction for structural rigidity and corrosion resistance. They are further coupled with elastomers that resist the effects of chloramine. These backflow preventers have a separate access and a top-entry check valve arrangement that facilitates convenient maintenance procedures. They have a maximum working pressure of 175 psi (12.06 bar).

StyleModelInlet ConnectionInlet SizeInlet Thread TypeMax. Temp.Max. Working PressureMin. Temp.Outlet ConnectionOutlet SizePrice (ex. VAT)
A719QTS 2-2"-180 Degree F12.1 Bar33 Degree F-2"€1,326.53
RFQ
B719-LF 1 1/4-1-1/4"-180 Degree F12.1 Bar33 Degree F-1-1/4"€651.19
RFQ
A719-AQT-R10 3/4-3/4"-180 Degree F12.1 Bar33 Degree F-3/4"€756.13
RFQ
B719QT-S-R10 3/4-3/4"-180 Degree F12.1 Bar33 Degree F-3/4"€609.05
RFQ
B719QT-S-R10 1/2-1/2"-180 Degree F12.1 Bar33 Degree F-1/2"€609.05
RFQ
B719-LF 3/4Female Threaded3/4"FPT180° F175 PSI33° FFemale Threaded-€417.09
RFQ
B719-QT-LH 1Female Threaded1"-180° F175 PSI33° FFemale Threaded-€516.54
RFQ
B719-LF 1/2Female Threaded1/2"FPT180° F175 PSI33° FFemale Threaded-€382.57
RFQ
BU719-QT-S 2Union Joint2"NPT180° F175 PSI33° FUnion Joint-€1,579.96
RFQ
WATTS -

LF709 Series Double Check Valve Assemblies

StyleModelInlet SizeMax. Temp.Max. Working PressureMin. Temp.Outlet SizeValve TypePrice (ex. VAT)
ALF709-QT-FDA 2 1/22 1/2"110° F175 PSI33° F--€7,039.38
RFQ
ALF709-NRS-S 2 1/22 1/2"110° F175 PSI33° F2-1/2"Non Rising Stem Gate Valve€6,649.93
RFQ
ALF709-QT-S-FDA 2 1/22 1/2"110° F175 PSI33° F--€7,750.64
RFQ
BLF709-NRS 2 1/22-1/2"110 Degree F12.1 Bar33 Degree F2-1/2"Non Rising Stem Gate Valve€5,502.23
RFQ
ALF709-DNRS 2 1/22-1/2"110 Degree F12.1 Bar33 Degree F2-1/2"Non Rising Stem Gate Valve€5,887.55
RFQ
CLF709-QT-FDA 33"110° F175 PSI33° F3"Quarter Turn Ball Valve€7,729.95
RFQ
CLF709-QT-S-FDA 33"110° F175 PSI33° F3"Quarter Turn Ball Valve€8,482.61
RFQ
DLF709-DNRS 33"110° F175 PSI33° F3"Non Rising Stem Gate Valve€6,039.49
RFQ
ELF709-NRS 44"110 Degree F12.1 Bar33 Degree F4"Non Rising Stem Gate Valve€6,409.61
RFQ
CLF709-NRS-S-FDA 44"110 Degree F12.1 Bar33 Degree F4"Non Rising Stem Gate Valve€7,582.14
RFQ
CLF709-QT-FDA 44"110° F175 PSI33° F4"Quarter Turn Ball Valve€8,200.88
RFQ
DLF709-DNRS 44"110° F175 PSI33° F4"Non Rising Stem Gate Valve€6,409.61
RFQ
CLF709-QT-S-FDA 44"110° F175 PSI33° F4"Quarter Turn Ball Valve€9,373.41
RFQ
DLF709-DNRS 66"110° F175 PSI33° F6"Non Rising Stem Gate Valve€11,315.24
RFQ
CLF709-NRS-S-FDA 66"110 Degree F12.1 Bar33 Degree F6"Non Rising Stem Gate Valve€12,418.72
RFQ
ALF709-QT-FDA 66"110° F175 PSI33° F--€13,536.01
RFQ
CLF709-QT-FDA 88"110 Degree F12.1 Bar33 Degree F8"Quarter Turn Ball Valve€28,834.62
RFQ
DLF709-NRS 88"110° F175 PSI33° F8"Non Rising Stem Gate Valve€22,525.20
RFQ
DLF709-DNRS 88"110° F175 PSI33° F8"Non Rising Stem Gate Valve€24,103.59
RFQ
CLF709-QT-S-FDA 88"110° F175 PSI33° F8"Quarter Turn Ball Valve€31,514.35
RFQ
DLF709-NRS 1010"110° F175 PSI33° F10"Non Rising Stem Gate Valve€29,090.83
RFQ
CLF709-NRS-S-FDA 1010"110 Degree F12.1 Bar33 Degree F10"Non Rising Stem Gate Valve€34,117.68
RFQ
DLF709-DNRS 1010"110° F175 PSI33° F10"Non Rising Stem Gate Valve€31,127.86
RFQ
WATTS -

709 Series Double Check Valve Backflow Preventer Assemblies

StyleModelInlet ConnectionInlet SizeInlet TypeItemMax. Temp.Max. Working PressureMin. Temp.Outlet ConnectionPrice (ex. VAT)
A709-QT-S 2 1/2-2-1/2"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€7,805.88
RFQ
B709-NRS 3--------€5,127.97
RFQ
C709-DNRS-S 10-10"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€34,351.21
RFQ
DSR709-OSY 8-8"Flanged JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€24,194.18
RFQ
B709-DNRS-S 6-6"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€7,043.55
RFQ
C709-DNRS-S 2 1/2-2-1/2"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€6,256.32
RFQ
D709-DOSY 6--------€11,521.00
RFQ
A709-QT 2 1/2-2-1/2"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€7,089.10
RFQ
C709-DNRS-S 3-3"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€6,256.32
RFQ
C709-DNRS-S 4-4"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€7,043.55
RFQ
D709-DOSY 10--------€31,362.88
RFQ
DSR709-OSY 10-10"Flanged JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€31,241.11
RFQ
A709-QT-FDA 4--------€8,808.55
RFQ
B709-DNRS-S 8-8"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€24,875.10
RFQ
D709-OSY 6--------€10,464.48
RFQ
B709-NRS-S 3--------€7,390.91
RFQ
B709-LF-BB 3--------€6,866.74
RFQ
DSR709-OSY 6-6"Flanged JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€11,359.42
RFQ
A709-QT 3-3"Mechanical JointDouble Check Valve Assembly110 Degree F12.1 Bar33 Degree F-€7,782.42
RFQ
D709-OSY 4--------€6,695.50
RFQ
B709-QT-S 6-6"Mechanical JointBall Valve110 Degree F12.1 Bar33 Degree F-€15,483.96
RFQ
DSR709-OSY 4Flanged Joint4"Flanged JointDouble Check Valve Assembly110° F175 PSI33° FFlanged Joint€6,883.32
RFQ
ESR709-OSY 3Flanged Joint3"Flanged JointDouble Check Valve Assembly110° F175 PSI33° FFlanged Joint€6,485.58
RFQ
ESR709-OSY 2 1/2Flanged Joint2 1/2"Flanged JointDouble Check Valve Assembly110° F175 PSI33° FFlanged Joint€5,909.65
RFQ
A709-QT 4Mechanical Joint4"Mechanical JointBall Valve110° F175 PSI33° FMechanical Joint€8,257.52
RFQ
WATTS -

Hose Connection Vacuum Breakers

StyleModelInlet SizeMax. Temp.Max. Working PressureMfr. SeriesMin. Temp.Outlet SizePrice (ex. VAT)
AS8-PC-NPSM1/2"180 Degree F8.6 Bar833 Degree F1/2"€140.87
BNF-8I3/4"180° F125 psiNF833° F3/4"€59.04
CNF-8 3/43/4"180 Degree F8.6 BarNF833 Degree F3/4"€49.20
D8FR 3/43/4"180 Degree F8.6 Bar8FR-3/4"€38.77
WATTS -

007 Series Double Check Valve Assemblies

StyleModelBody MaterialDisc MaterialInlet SizeMax. Temp.Max. Working PressureMin. Temp.Outlet SizeSeat MaterialPrice (ex. VAT)
AU007M1-QT-SH 1 1/2BronzeRubber1-1/2"180 Degree F12.1 Bar33 Degree F1-1/2"-€1,152.50
RFQ
B007M2-QT-CT 1 1/2BronzeSilicone1 1/2"180° F175 PSI33° F1-1/2"Engineered Plastic€856.97
RFQ
AU007M1-QT-SH 1BronzeRubber1"180 Degree F12.1 Bar33 Degree F1"-€623.55
RFQ
CU007M1-QT 1BronzeRubber1"180 Degree F12.1 Bar33 Degree F1"-€559.34
RFQ
D007M3-QT-S 3/4BronzeSilicone3/4"180 Degree F12.1 Bar33 Degree F3/4"Engineered Plastic€519.28
RFQ
E007M2-PC-QT 1 1/4BronzeRubber1-1/4"180 Degree F12.1 Bar33 Degree F1-1/4"Rubber€817.59
RFQ
F007M1-PC-QT 1BronzeRubber1"180 Degree F12.1 Bar33 Degree F1"Rubber€555.19
RFQ
GU007M2-QT 1 1/4BronzeRubber1-1/4"180 Degree F12.1 Bar33 Degree F1-1/4"-€933.63
RFQ
HU007M2-QT-S 1 1/4BronzeRubber1-1/4"180 Degree F12.1 Bar33 Degree F1-1/4"-€1,308.57
RFQ
B007M2-QT-CT 1 1/4BronzeRubber1 1/4"180° F175 PSI33° F1-1/4"Rubber€680.86
RFQ
A007M3-QT-BC 3/4BronzeRubber3/4"180 Degree F12.1 Bar33 Degree F3/4"Rubber€451.60
RFQ
ID007M1-QT 2Bronze-2"180 Degree F12.1 Bar33 Degree F2"-€950.87
RFQ
J007M2-QT 1 1/4BronzeSilicone1 1/4"180° F175 PSI33° F1-1/4"Engineered Plastic€588.94
RFQ
K007M3-QT-SH 3/4BronzeRubber3/4"180 Degree F12.1 Bar33 Degree F3/4"Rubber€412.95
RFQ
L007-QT 1/2BronzeSilicone1/2"180 Degree F12.1 Bar33 Degree F1/2"Engineered Plastic€259.05
RFQ
CU007M1-QT-Z3 1BronzeRubber1"180 Degree F12.1 Bar33 Degree F1"-€604.91
RFQ
F007M1-QT 1BronzeSilicone1"180 Degree F12.1 Bar33 Degree F1"Engineered Plastic€321.46
RFQ
AU007M1-QT-SH 3/4BronzeRubber3/4"180 Degree F12.1 Bar33 Degree F3/4"-€533.10
RFQ
I007M1-QT 2BronzeSilicone2"180 Degree F12.1 Bar33 Degree F2"Engineered Plastic€793.13
RFQ
GU007M2-QT-Z3 1 1/2BronzeRubber1-1/2"180 Degree F12.1 Bar33 Degree F1-1/2"-€1,151.15
RFQ
CU007M2-QT-Z3 3/4BronzeRubber3/4"180 Degree F12.1 Bar33 Degree F3/4"-€543.45
RFQ
K007M3-QT 3/4BronzeSilicone3/4"180 Degree F12.1 Bar33 Degree F3/4"Engineered Plastic€287.02
RFQ
J007M2-QT 1 1/2BronzeSilicone1 1/2"180° F175 PSI33° F1-1/2"Engineered Plastic€623.91
RFQ
A007M1-QT-BC 1Bronze-1"180 Degree F12.1 Bar33 Degree F1"-€513.07
RFQ
MD007-QT-S 1/2Bronze-1/2"180 Degree F12.1 Bar33 Degree F1/2"-€461.27
RFQ
WATTS -

957RPDA Series Reduced Pressure Zone Assemblies

StyleModelBody StyleInlet SizeInlet TypeMax. Temp.Max. Working PressureMin. Temp.Outlet SizeOutlet TypePrice (ex. VAT)
A957RPDA-OSY-GPM 8Inline8"Flanged Joint140 Degree F12.1 Bar33 Degree F8"Flanged Joint€15,171.22
RFQ
A957RPDA-OSY-GPM 4Inline4"Flanged Joint140 Degree F12.1 Bar33 Degree F4"Flanged Joint€6,393.03
RFQ
A957RPDA-OSY-GPM 6Inline6"Flanged Joint140 Degree F12.1 Bar33 Degree F6"Flanged Joint€9,207.69
RFQ
A957RPDA-OSY-GPM 2 1/2Straight2-1/2"Grooved Joint110 Degree F12.06 Bar33 Degree F2-1/2"Grooved Joint€4,407.02
RFQ
A957RPDA-OSY-GPM 3Straight3"Grooved Joint110 Degree F12.06 Bar33 Degree F3"Grooved Joint€4,893.18
RFQ
A957RPDA-OSY-GPM 10Straight10"Grooved Joint110 Degree F12.06 Bar33 Degree F10"Grooved Joint€17,734.20
RFQ
B957RPDA-OSY-LM 10Straight10"Grooved Joint110 Degree F12.06 Bar33 Degree F10"Grooved Joint€17,635.61
RFQ
C957RPDA-DOSY-CFM 6Straight6"Grooved Joint110° F175 PSI33° F6"Grooved Joint€10,406.46
RFQ
A957RPDA-DOSY-GPM 8Straight8"Grooved Joint110 Degree F12.06 Bar33 Degree F8"Grooved Joint€15,171.22
RFQ
B957RPDA-OSY-LM 4Straight4"Grooved Joint110 Degree F12.06 Bar33 Degree F4"Grooved Joint€6,293.60
RFQ
C957RPDA-DOSY-CFM 4Straight4"Grooved Joint110° F175 PSI33° F4"Grooved Joint€7,223.07
RFQ
C957RPDA-DOSY-GPM 4Straight4"Grooved Joint110° F175 PSI33° F4"Grooved Joint€7,223.07
RFQ
C957RPDA-DOSY-CFM 8Straight8"Grooved Joint110° F175 PSI33° F8"Grooved Joint€15,171.22
RFQ
WATTS -

9D Series Dual Check Valves

StyleModelConnection TypeInlet SizeOutlet SizeSizePrice (ex. VAT)
A9D-M2-3/4"Fnpt3/4"3/4"3/4"€132.11
B9D-M3-1/2"FNPT Union1/2"1/2"1/2"€115.89
WATTS -

Backflow Preventers

StyleModelInlet SizePrice (ex. VAT)
A919A-QT--
RFQ
B994-NRS-€4,853.34
CL7U2-2-TC-QT 11"€807.93
RFQ
DL7U2-2-TC 3/43/4"€631.85
RFQ
12...78

Frequently Asked Questions

How does backflow occur?

Backflow is generated by cross-connections that have the possibility of permitting pollutants into the drinking water system. Back siphonage can happen when the pressure in a tank is less than the water system's pressure.

Can check valves prevent backflow?

Check valves offer a basic form of backflow prevention, stopping water from flowing in the wrong direction.

Are dual check valves the same as backflow preventers?

Double-check valves (also known as double-check assembly) are somewhere in between a check valve and a backflow preventer. They are usually installed in places where backflow requires to be contained with a one-way valve, but the investment needs to be less than a backflow preventer.

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