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 -

Ames Deringer 40/40G Reduced Pressure Zone Assemblies

StyleModelMPN
ADERINGER 40 2 1/2DERINGER 40 2 1/2
RFQ
BDERINGER 40 3DERINGER 40 3
RFQ
CDERINGER 40 4DERINGER 40 4
RFQ
DDERINGER 40 6DERINGER 40 6
RFQ
EDERINGER 40 8DERINGER 40 8
RFQ
FDERINGER 40 KIT (RP) 2DERINGER 40 KIT (RP) 2
RFQ
GDERINGER 40G 2 1/2DERINGER 40G 2 1/2
RFQ
HDERINGER 40G 3DERINGER 40G 3
RFQ
IDERINGER 40G 4DERINGER 40G 4
RFQ
DDERINGER 40G 6DERINGER 40G 6
RFQ
JDERINGER 40G 8DERINGER 40G 8
RFQ
WATTS -

4000SS Series Reduced Pressure Zone Assemblies

StyleModelInlet TypeOutlet SizeOutlet TypeBody MaterialBody FinishDisc MaterialBypass SizeInlet Thread TypePrice
A4000SS-DOSY-GXF 3---Stainless SteelStainless SteelRubberNot ApplicableNot Applicable€5,050.54
RFQ
B4000SS-DNRS-FS 6---------
RFQ
C4000SS-DOSY-FXG-FS 8---------
RFQ
D4000SS-DOSY-FXG-FS 4---------
RFQ
E4000SS-DOSY-FXG-FS 10---------
RFQ
F4000SS-DOSY-FS 8---------
RFQ
F4000SS-DOSY-FS 6---------
RFQ
F4000SS-DOSY-FS 3---------
RFQ
F4000SS-DOSY-FS 2 1/2---------
RFQ
F4000SS-DOSY-FS 12---------
RFQ
F4000SS-DOSY-FS 10---------
RFQ
G4000SS-DNRS-FS 4---------
RFQ
B4000SS-DNRS-FS 3---------
RFQ
B4000SS-DNRS-FS 2 1/2---------
RFQ
H4000SS LG-FS 12---------
RFQ
A4000SS-DOSY-GXF 10---Stainless SteelStainless SteelRubberNot Applicable-€26,767.60
RFQ
A4000SS-DOSY-GXF 6---Stainless SteelStainless SteelRubberNot ApplicableNot Applicable€10,487.55
RFQ
A4000SS-DOSY-GXF 4---Stainless SteelStainless SteelRubberNot ApplicableNot Applicable€6,716.38
RFQ
I4000SS-DOSY-GXG-FS 2 1/2---------
RFQ
J4000SS-DOSY-FXG 3Flanged Joint3"Grooved JointStainless SteelStainless SteelRubberNot ApplicableNot Applicable€5,050.54
RFQ
K4000SS-DOSY 2 1/2Flanged Joint2 1/2"Flanged JointStainless SteelStainless SteelRubberNot ApplicableNot Applicable€4,488.26
RFQ
J4000SS-DOSY-FXG 6Flanged Joint6"Grooved JointStainless SteelStainless SteelRubberNot ApplicableNot Applicable€10,487.55
RFQ
A4000SS-DOSY-GXF 8Grooved Joint8"-Stainless SteelStainless SteelRubberNot ApplicableNot Applicable€18,059.18
RFQ
WATTS -

5000SS Series Reduced Pressure Detector Assemblies

StyleModelMeter TypeMax. Working PressureMin. Temp.Inlet TypeOutlet TypeOutlet SizeBody MaterialDisc MaterialPrice
A5000SS-DOSY-FXG-GPM-FS 6---------
RFQ
B5000SS-DOSY-GPM-FS 2 1/2---------
RFQ
C5000SS-DOSY-GPM-FS 3---------
RFQ
B5000SS-DOSY-CFM-FS 6---------
RFQ
D5000SS-DOSY-CFM-FS 4---------
RFQ
A5000SS-DOSY-FXG-GPM-FS 3---------
RFQ
E5000SS-DOSY-GXF-CFM 2 1/2--------€5,939.27
RFQ
F5000SS-DOSY-GXG-CFM 2 1/2--------€6,356.43
RFQ
G5000SS-DOSY-GXG-CFM 3CFM175 psi33°FGrooved JointGrooved Joint3"Stainless SteelRubber€7,024.72
RFQ
H5000SS-DOSY-CFM 3CFM-----Stainless SteelRubber€7,024.72
RFQ
E5000SS-DOSY-FXG-CFM 2 1/2CFM-----Stainless SteelRubber€5,939.27
RFQ
I5000SS-DOSY-FXG-CFM 6CFM175 psi33°FFlanged JointGrooved Joint-Stainless SteelRubber€11,363.73
RFQ
E5000SS-DOSY-GXF-CFM 6CFM175 psi33°FGrooved JointFlanged Joint-Stainless SteelRubber€11,363.73
RFQ
E5000SS-DOSY-FXG-CFM 4CFM175 psi33°FFlanged JointGrooved Joint-Stainless SteelRubber€7,740.45
RFQ
E5000SS-DOSY-GXF-CFM 4CFM175 psi33°FGrooved JointFlanged Joint-Stainless SteelRubber€7,740.45
RFQ
F5000SS-DOSY-GXG-CFM 6CFM12.1 Bar0.5°CGrooved JointGrooved Joint6"Stainless SteelRubber€12,158.98
RFQ
J5000SS-DOSY-FXG-CFM 3CFM175 psi33°FFlanged JointGrooved Joint-Stainless SteelRubber€6,565.70
RFQ
E5000SS-DOSY-GXF-CFM 3CFM-------€6,565.70
RFQ
F5000SS-DOSY-GXG-CFM 4CFM12.1 Bar0.5°CGrooved JointGrooved Joint4"Stainless SteelRubber€8,281.77
RFQ
K5000SS-DNRS-CFM 6CFM-----Stainless SteelRubber€25,669.31
RFQ
E5000SS-DOSY-FXG-GPM 4GPM175 psi33°FFlanged JointGrooved Joint-Stainless SteelRubber€7,740.45
RFQ
L5000SS-DOSY-GXF-GPM 4GPM175 psi33°FGrooved JointFlanged Joint-Stainless SteelRubber€7,740.45
RFQ
M5000SS-DOSY-GXF-GPM 3GPM175 psi33°FGrooved JointFlanged Joint-Stainless SteelRubber€6,565.70
RFQ
G5000SS-DOSY-GXF-GPM 6GPM175 psi33°FGrooved JointFlanged Joint-Stainless SteelRubber€11,363.73
RFQ
K5000SS-DNRS-GPM 6GPM175 psi33°F---Stainless SteelRubber€16,536.01
RFQ
WATTS -

850 SMALL Series Double Check Valve Assemblies

StyleModelInlet Thread TypeStrainerBody MaterialSeat MaterialBody FinishDisc MaterialBody PatternMeter TypePrice
A850L-LG-DN15-BSP-DCV--------€181.39
RFQ
A850L-LG-DN20-BSP-DCV--Bronze-Rough Bronze---€177.17
RFQ
B850U-QT-FZ 2---------
RFQ
C850U-QT-FZ 1/2---------
RFQ
B850U-QT-FZ 1 1/2---------
RFQ
D850U-QT-FZ 1---------
RFQ
E850-QT-FZ 1 1/4---------
RFQ
C850U-QT-FZ 3/4---------
RFQ
A850L-LG-DN50-BSP-DCVBSPTYesBronze-Rough BronzeSiliconeStraightNo Meter€476.45
RFQ
A850L-LG-DN40-BSP-DCVBSPTYesBronze-Rough BronzeSiliconeStraightNo Meter€419.94
RFQ
A850L-LG-DN32-BSP-DCVBSPTYesBronze-Rough BronzeSiliconeStraightNo Meter€366.91
RFQ
A850L-LG-DN25-BSP-DCVBSPTYesBronze-Rough BronzeSiliconeStraightNo Meter€232.29
RFQ
A850-QT 1 1/4NPT-BronzePlasticRough BronzeSiliconeStraight-€571.39
RFQ
F850U-QT 3/4NPT-Bronze-Rough BronzeSilicone--€322.28
RFQ
F850U-QT 2NPTNoBronzePlasticRough BronzeSiliconeStraightNo Meter€862.21
RFQ
G850-QT 3/4NPTNoBronzePlasticRough BronzeSiliconeStraightNo Meter€267.32
A850-QT 2NPTNoBronzePlasticRough BronzeSiliconeStraightNo Meter€721.99
RFQ
WATTS -

856ST Series Double Check Detector Assemblies

StyleModelMPN
A856STDCDA-DOSY-CFM 10856STDCDA-DOSY-CFM 10
RFQ
A856STDCDA-DOSY-GPM 2 1/2856STDCDA-DOSY-GPM 2 1/2
RFQ
A856STDCDA-DOSY-GPM 4856STDCDA-DOSY-GPM 4
RFQ
A856STDCDA-DOSY-GPM 6856STDCDA-DOSY-GPM 6
RFQ
A856STDCDA-DOSY-GPM 8856STDCDA-DOSY-GPM 8
RFQ
B856STDCDA-DOSY-LM 2 1/2856STDCDA-DOSY-LM 2 1/2
RFQ
C856STDCDA-DOSY-LM 4856STDCDA-DOSY-LM 4
RFQ
C856STDCDA-DOSY-LM 8856STDCDA-DOSY-LM 8
RFQ
B856STDCDA-DOSY-LM 10856STDCDA-DOSY-LM 10
RFQ
D856STDCDA-LG-GPM 2 1/2856STDCDA-LG-GPM 2 1/2
RFQ
D856STDCDA-LG-GPM 3856STDCDA-LG-GPM 3
RFQ
D856STDCDA-LG-GPM 4856STDCDA-LG-GPM 4
RFQ
E856STDCDA-LG-GPM 6856STDCDA-LG-GPM 6
RFQ
A856STDCDA-OSY-GPM 3856STDCDA-OSY-GPM 3
RFQ
WATTS -

860 SMALL Series Reduced Pressure Zone Assemblies

StyleModelMPN
A860-QT-FS 1860-QT-FS 1
RFQ
B860-QT 1 1/4860-QT 1 1/4
RFQ
C860-QT 1/2860-QT 1/2
RFQ
DU860-QT 2U860-QT 2
RFQ
WATTS -

909RPDA Series Reduced Pressure Detector Assemblies

StyleModelMax. Working PressureMin. Temp.TypeMeter TypeOutlet SizeSeat MaterialBody MaterialBody FinishPrice
A909RPDA-LF-CFM 3---CFM---Epoxy Coated€8,445.02
RFQ
B909RPDA-LF-CFM-FS 4---------
RFQ
B909RPDA-LF-GPM-FS 10---------
RFQ
C909RPDA-OSY-CFM-FS 2 1/2---------
RFQ
C909RPDA-OSY-CFM-FS 3---------
RFQ
C909RPDA-OSY-CFM-FS 6---------
RFQ
C909RPDA-OSY-GPM-FS 10---------
RFQ
C909RPDA-OSY-GPM-FS 4---------
RFQ
C909RPDA-OSY-GPM-FS 8---------
RFQ
D909RPDA-DOSY-GPM 2 1/212.1 Bar0.5°CValve To AccessoryGPM2 1/2"BronzeCast IronEpoxy Coated€11,187.93
RFQ
A909RPDA-LF-GPM 412.1 Bar33°FValve To AccessoryGPM4"BronzeCast IronEpoxy Coated€10,558.69
RFQ
A909RPDA-LF-CFM 612.1 Bar0.5°CKit-6"BronzeCast IronEpoxy Coated€15,344.17
RFQ
D909RPDA-OSY-GPM 2 1/212.1 Bar33°FValve To AccessoryGPM2 1/2"Bronze-Epoxy Coated€10,456.86
RFQ
D909RPDA-DOSY-GPM 3175 psi33°FValve To AccessoryGPM3"BronzeCast IronEpoxy Coated€12,725.42
RFQ
A909RPDAM1-LF-CFM 8175 psi33°FKitCFM8"BronzeCast IronEpoxy Coated€25,659.53
RFQ
A909RPDAM1-LF-CFM 10175 psi33°FValve To AccessoryCFM10"Bronze-Epoxy Coated€33,982.44
RFQ
StyleModelMPN
A08.0-92AT-N08.0-92AT-N
RFQ
A10.0-92AT-N10.0-92AT-N
RFQ
A12.0-92AT-N12.0-92AT-N
RFQ
WATTS -

957 Series Reduced Pressure Zone Assemblies

StyleModelOutlet SizeBody MaterialSeat MaterialValve TypeBody FinishBody PatternStrainerMax. Working PressurePrice
A2 1/2 957-NRS-FP---------
RFQ
B3 957-OSY-IOT---------
RFQ
C4 957-OSY-FP---------
RFQ
C2 1/2 957-OSY-FP---------
RFQ
C6 957-OSY-FP---------
RFQ
B6 957-OSY-IOT---------
RFQ
D8 957-NRS-IOT---------
RFQ
C8 957-OSY-FP---------
RFQ
E957-BFG-FS 4---------
RFQ
F957-DNRS-FS 10---------
RFQ
F957-DNRS-FS 2 1/2---------
RFQ
G957-DNRS 66"Stainless SteelEngineered PlasticNon Rising Stem Gate ValveStainless SteelInlineNo12.1 Bar€6,775.24
RFQ
G957-DNRS 88"Stainless SteelEngineered PlasticNon Rising Stem Gate ValveStainless SteelInlineNo12.1 Bar€11,855.59
RFQ
WATTS -

957RPDA Series Reduced Pressure Detector Assemblies

StyleModelBody FinishMax. Working PressureMin. Temp.TypeOutlet SizeBody StyleMeter TypeBody MaterialPrice
A957NRPDA-BFG-GPM-FS 6---------
RFQ
B957NRPDA-DOSY-CFM-FS 8---------
RFQ
A957NRPDA-BFG-CFM-FS 4---------
RFQ
C957NRPDA-BFG-GPM 4Plain12.06 Bar33°FValve To Accessory4"N PatternGPM-€9,178.88
RFQ
D957NRPDA-DOSY-LM 3Plain175 psi33°FKit3"N PatternNo MeterStainless Steel€7,140.53
RFQ
E957NRPDA-DOSY-CFM 2 1/2Plain175 psi33°FKit2 1/2"N Pattern-Stainless Steel€6,674.52
RFQ
F957NRPDA-BFG-GPM 2 1/2Plain175 psi33°FValve To Accessory2 1/2"N PatternGPMStainless Steel€6,239.24
RFQ
G957NRPDA-BFG-LM 4Plain175 psi33°FKit4"N PatternNo MeterStainless Steel€9,074.22
RFQ
D957NRPDA-DOSY-LM 2 1/2Plain175 psi33°FKit2 1/2"N PatternNo MeterStainless Steel€6,557.34
RFQ
G957NRPDA-BFG-LM 2 1/2Plain175 psi33°FKit2 1/2"N PatternNo MeterStainless Steel€6,134.59
RFQ
H957NRPDA-OSY-CFM 10Plain175 psi33°FValve To Accessory10"N Pattern--€22,783.52
RFQ
E957NRPDA-DOSY-CFM 3Stainless Steel175 psi33°FKit3"N PatternCFMStainless Steel€7,256.32
RFQ
E957NRPDA-DOSY-GPM 3Stainless Steel175 psi33°FKit3"N PatternGPMStainless Steel€7,256.32
RFQ
F957NRPDA-BFG-CFM 3Stainless Steel175 psi33°FKit3"N Pattern-Stainless Steel€6,755.44
RFQ
D957NRPDA-DOSY-LM 4Stainless Steel12.06 Bar0.5°CKit4"N PatternNo MeterStainless Steel€9,877.86
RFQ
E957NRPDA-DOSY-GPM 2 1/2Stainless Steel12.06 Bar0.5°CKit2 1/2"N PatternGPMStainless Steel€6,674.52
RFQ
I957NRPDA-BFG-GPM 8Stainless Steel12.06 Bar0.5°CValve To Accessory8"N PatternGPMStainless Steel€19,560.24
RFQ
F957NRPDA-BFG-CFM 6Stainless Steel12.06 Bar0.5°CKit6"N PatternCFMStainless Steel€13,536.01
RFQ
E957NRPDA-DOSY-GPM 8Stainless Steel12.06 Bar0.5°CValve To Accessory8"N PatternGPMStainless Steel€19,220.12
RFQ
G957NRPDA-BFG-LM 6Stainless Steel12.06 Bar0.5°CKit6"N PatternNo MeterStainless Steel€13,431.37
RFQ
J957-RPDA-OSY-CFM 2 1/2Stainless Steel12.06 Bar33°FValve To Accessory2 1/2"Straight-Stainless Steel€4,451.99
RFQ
D957NRPDA-DOSY-LM 8Stainless Steel12.06 Bar33°FValve To Accessory8"N PatternNo MeterStainless Steel€19,116.23
RFQ
E957NRPDA-DOSY-GPM 4Stainless Steel175 psi33°FKit4"N PatternGPMStainless Steel€9,999.24
RFQ
D957NRPDA-DOSY-LM 6Stainless Steel175 psi33°FKit6"N PatternNo MeterStainless Steel€14,793.06
RFQ
E957NRPDA-DOSY-CFM 4Stainless Steel12.06 Bar0.5°CKit4"N Pattern-Stainless Steel€9,999.24
RFQ
WATTS -

994 Series Reduced Pressure Zone Assemblies

StyleModelBody FinishStrainerMin. Temp.TypeInlet TypeOutlet SizeMax. Working PressureBody PatternPrice
A994-DOSY-FS 4---------
RFQ
B994-LF-FS 3---------
RFQ
C994-DOSY-FS 3---------
RFQ
D994-DOSY-FS 2 1/2---------
RFQ
E994-LF-FS 8---------
RFQ
F994-NRS-FS 8---------
RFQ
F994-NRS-FS 4---------
RFQ
D994-OSY-FS 10---------
RFQ
E994-LF-FS 10---------
RFQ
G994-DNRS-FS 3---------
RFQ
H994-DNRS 8PlainNo33°FValve To AccessoryFlanged Joint8"--€20,165.03
RFQ
I994-DOSY 6PlainNo33°FValve To AccessoryFlanged Joint6"175 psiNot Applicable€12,237.11
RFQ
I994-DOSY 10PlainNo33°FValve To AccessoryFlanged Joint10"175 psiNot Applicable€29,195.91
RFQ
J994-LF 4Stainless SteelNo33°FValve To AccessoryFlanged Joint4"175 psiNot Applicable€5,519.33
RFQ
J994-LF 3Stainless SteelNo33°FValve To AccessoryFlanged Joint3"175 psiNot Applicable€4,683.59
RFQ
K994-NRS-S 8Stainless SteelYes33°FValve To AccessoryFlanged Joint8"175 psiInline€23,614.59
RFQ
H994-DNRS 4Stainless SteelNo33°FValve To AccessoryFlanged Joint4"175 psiNot Applicable€7,233.99
RFQ
L994-NRS 4Stainless SteelNo33°FValve To AccessoryFlanged Joint4"175 psiInline€6,759.64
RFQ
M994-DNRS 6Stainless SteelNo0.5°CValve To AccessoryFlanged Joint6"12.1 Bar-€11,518.57
RFQ
I994-DOSY 8Stainless SteelNo33°FValve To AccessoryFlanged Joint8"175 psiNot Applicable€21,363.29
RFQ
H994-DNRS 10Stainless SteelNo0.5°CValve To AccessoryFlanged Joint10"12.1 Bar-€26,799.46
RFQ
M994-DNRS 2 1/2Stainless SteelNo0.5°CValve To AccessoryFlanged Joint2 1/2"12.1 Bar-€5,596.05
RFQ
L994-NRS 10Stainless SteelNo33°FValve To AccessoryFlanged Joint10"175 psiInline€25,044.80
RFQ
N994-LF 2 1/2Stainless SteelNo33°FKitSwivel Joint2 1/2"175 psiNot Applicable€4,117.17
RFQ
WATTS -

994RPDA Series Reduced Pressure Detector Assemblies

StyleModelBody FinishMax. Working PressureMin. Temp.Inlet TypeOutlet SizeMeter TypeOutlet TypeBody MaterialPrice
A994RPDA-OSY-GPM-FS 3---------
RFQ
B994RPDA-LF-CFM-FS 4---------
RFQ
C994RPDA-OSY-CFM-FS 8---------
RFQ
A994RPDA-OSY-CFM-FS 4---------
RFQ
D994RPDA-LF-GPM 4Plain175 psi33°FGrooved Joint4"GPM-Stainless Steel€6,814.05
RFQ
E994RPDA-OSY-FXG-GPM 3Plain175 psi33°FFlanged Joint3"GPMGrooved JointStainless Steel€7,549.30
RFQ
F994RPDA-OSY-GPM 4Plain175 psi33°FFlanged Joint4"GPMFlanged JointStainless Steel€8,637.53
RFQ
D994RPDA-LF-CFM 2 1/2Plain175 psi33°FSwivel Joint2 1/2"--Stainless Steel€5,360.28
RFQ
G994RPDA-OSY-FXG-CFM 4Plain12.1 Bar33°FFlanged Joint4"CFMGrooved JointStainless Steel€8,637.53
RFQ
F994RPDA-OSY-CFM 2 1/2Plain175 psi33°FFlanged Joint2 1/2"CFMFlanged JointStainless Steel€6,794.51
RFQ
F994RPDA-DOSY-CFM 8Plain175 psi33°FFlanged Joint8"CFMFlanged JointStainless Steel€23,425.32
RFQ
D994RPDA-LF-GPM 6Plain175 psi33°FGrooved Joint6"GPM-Stainless Steel€9,870.87
RFQ
D994RPDA-LF-GPM 3Stainless Steel12.1 Bar0.5°CGrooved Joint3"GPM-Stainless Steel€5,956.02
RFQ
D994RPDA-LF-GPM 2 1/2Stainless Steel175 psi33°FGrooved Joint2 1/2"GPM-Stainless Steel€5,360.28
RFQ
E994RPDA-OSY-FXG-CFM 6Stainless Steel12.1 Bar33°FFlanged Joint6"CFMGrooved JointStainless Steel€12,443.57
RFQ
G994RPDA-OSY-FXG-GPM 2 1/2Stainless Steel12.1 Bar0.5°CFlanged Joint2 1/2"GPMGrooved JointStainless Steel€6,794.51
RFQ
D994RPDA-LF-CFM 8Stainless Steel175 psi33°FFlanged Joint8"--Stainless Steel€18,837.30
RFQ
F994RPDA-OSY-CFM 3Stainless Steel175 psi33°FFlanged Joint3"CFMFlanged JointStainless Steel€7,549.30
RFQ
D994RPDA-LF-CFM 3Stainless Steel175 psi33°FFlanged Joint3"--Stainless Steel€5,956.02
RFQ
F994RPDA-DOSY-CFM 6Stainless Steel175 psi33°FFlanged Joint6"CFMFlanged JointStainless Steel€13,315.58
RFQ
F994RPDA-DOSY-CFM 2 1/2Stainless Steel175 psi33°FFlanged Joint2 1/2"CFMFlanged JointStainless Steel€7,271.67
RFQ
G994RPDA-OSY-FXG-GPM 6Stainless Steel12.1 Bar33°FFlanged Joint6"GPMGrooved JointStainless Steel€12,443.57
RFQ
E994RPDA-OSY-FXG-GPM 4Stainless Steel12.1 Bar0.5°CFlanged Joint4"GPMGrooved JointStainless Steel€8,637.53
RFQ
F994RPDA-DOSY-CFM 4Stainless Steel175 psi33°FFlanged Joint4"CFMFlanged JointStainless Steel€9,241.67
RFQ
D994RPDA-LF-CFM 6Stainless Steel175 psi33°FFlanged Joint6"--Stainless Steel€9,870.87
RFQ
WATTS -

Ames Deringer 30/30G Double Check Detector Type II Assemblies

StyleModelMPN
A2IN DERINGER 30 KIT - GPM2IN DERINGER 30 KIT - GPM
RFQ
BDERINGER 30 LM 2 1/2DERINGER 30 LM 2 1/2
RFQ
CDERINGER 30 LM 3DERINGER 30 LM 3
RFQ
DDERINGER 30 LM 4DERINGER 30 LM 4
RFQ
EDERINGER 30 LM 6DERINGER 30 LM 6
RFQ
FDERINGER 30 LM 8DERINGER 30 LM 8
RFQ
GDERINGER 30G CFM 2 1/2DERINGER 30G CFM 2 1/2
RFQ
HDERINGER 30G CFM 3DERINGER 30G CFM 3
RFQ
IDERINGER 30G CFM 4DERINGER 30G CFM 4
RFQ
JDERINGER 30G CFM 6DERINGER 30G CFM 6
RFQ
KDERINGER 30G CFM 8DERINGER 30G CFM 8
RFQ
WATTS -

Ames Deringer 30X/30GX Double Check Valve Assemblies

StyleModelMPN
ADERINGER 30GX CFM 4DERINGER 30GX CFM 4
RFQ
BDERINGER 30GX CFM 6DERINGER 30GX CFM 6
RFQ
CDERINGER 30X LM 4DERINGER 30X LM 4
RFQ
DDERINGER 30X LM 6DERINGER 30X LM 6
RFQ
WATTS -

Ames Deringer 40X/40GX Reduced Pressure Zone Assemblies

StyleModelMPN
ADERINGER 40GX 4DERINGER 40GX 4
RFQ
BDERINGER 40GX 6DERINGER 40GX 6
RFQ
CDERINGER 40X 4DERINGER 40X 4
RFQ
DDERINGER 40X 6DERINGER 40X 6
RFQ
WATTS -

2000B FP Series Double Check Valve Assemblies

StyleModelMPN
A1 1/2 2000BM2-FP1 1/2 2000BM2-FP
RFQ
B1 1/2 2000BM2-FP-GV1 1/2 2000BM2-FP-GV
RFQ
A1 1/4 2000BM2-FP1 1/4 2000BM2-FP
RFQ
B1 1/4 2000BM2-FP-GV1 1/4 2000BM2-FP-GV
RFQ
A1 2000BM1-FP1 2000BM1-FP
RFQ
B1 2000BM1-FP-GV1 2000BM1-FP-GV
RFQ
A2 2000BM1-FP2 2000BM1-FP
RFQ
B2 2000BM1-FP-GV2 2000BM1-FP-GV
RFQ
WATTS -

Ames Deringer 50/50G Reduced Pressure Detector Type II Assemblies

StyleModelMPN
ADERINGER 50 CFM 2 1/2DERINGER 50 CFM 2 1/2
RFQ
BDERINGER 50 CFM 3DERINGER 50 CFM 3
RFQ
CDERINGER 50 CFM 4DERINGER 50 CFM 4
RFQ
DDERINGER 50 CFM 6DERINGER 50 CFM 6
RFQ
EDERINGER 50 CFM 8DERINGER 50 CFM 8
RFQ
FDERINGER 50G GPM 8DERINGER 50G GPM 8
RFQ
GDERINGER 50G LM 2 1/2DERINGER 50G LM 2 1/2
RFQ
HDERINGER 50G LM 3DERINGER 50G LM 3
RFQ
IDERINGER 50G LM 4DERINGER 50G LM 4
RFQ
JDERINGER 50G LM 6DERINGER 50G LM 6
RFQ
StyleModelMPN
AACV1ACV1
RFQ
AACV2ACV2
RFQ
AACV12ACV12
RFQ
AACV34ACV34
RFQ
AACV112ACV112
RFQ
AACV114ACV114
RFQ
WATTS -

C500 Series Reduced Pressure Detector Assemblies

StyleModelMeter TypeSeat MaterialBody MaterialInlet Thread TypeBody FinishBody PatternStrainerMax. Working PressurePrice
AC500-DNRS-G-FS 6---------
RFQ
BC500-OSY-C-FS 10---------
RFQ
BC500-OSY-C-FS 2 1/2---------
RFQ
CC500-OSY-C-FS 3---------
RFQ
BC500-OSY-C-FS 4---------
RFQ
BC500-OSY-C-FS 8---------
RFQ
DC500-OSY-CFM 3CFMRubber-Not Applicable--No-€5,402.13
RFQ
EC500-DOSY-G 2 1/2GPMRubberStainless SteelNot ApplicableStainless SteelStraight-175 psi€5,522.10
RFQ
WATTS -

LF007 Series Double Check Valve Assemblies

StyleModelBody MaterialMin. Temp.Max. Working PressureTypeInlet TypeOutlet SizeOutlet TypeInlet Thread TypePrice
ALF007M1-QT-S-FZ 2---------
RFQ
BLF007-OSY 3-33°F12.1 BarKitFemale Threaded3"Female ThreadedNPT€6,994.03
RFQ
CLF007M1-QT-S-FZ 1---------
RFQ
DLF007-QT-S-FZ 1/2---------
RFQ
ELF007-LF 1/2-33°F175 psiKitFemale Threaded1/2"Female ThreadedNPT€423.44
RFQ
FLF007-DNRS-IOT 3---------
RFQ
FLF007-DNRS-IOT 2 1/2---------
RFQ
GLF007-LF 3Cast Iron0.5°C12.1 BarKitFemale Threaded3"Female ThreadedNPT€3,494.92
RFQ
HLF007-QT-FDA 3Cast Iron33°F-KitFemale Threaded3"Female Threaded-€8,679.39
RFQ
HLF007-QT-FDA 2 1/2Cast Iron33°F175 psi----NPT€7,600.92
RFQ
BLF007-OSY 2 1/2Cast Iron1°C12.1 BarKitFemale Threaded2 1/2"Female ThreadedNPT€6,078.78
RFQ
BLF007-DOSY 3Cast Iron33°F12.1 BarKitFemale Threaded3"Female ThreadedNPT€6,652.19
RFQ
BLF007-DOSY 2 1/2Cast Iron0.5°C175 psiKitFemale Threaded2 1/2"Female ThreadedNPT€5,780.21
RFQ
ELF007-LF 2 1/2Cast Iron33°F175 psiKitFemale Threaded2 1/2"Female ThreadedNPT€3,183.78
RFQ
ILF007M1-LF 1Lead Free Bronze33°F175 psiKitFemale Threaded1"Female ThreadedNPT€512.72
RFQ
ELF007M2-LF 1 1/4Lead Free Bronze1°C12.1 BarKitFemale Threaded1 1/4"Female ThreadedNPT€721.31
RFQ
JLF007-QT (W/PRESS) 1/2Lead Free Bronze33°F175 psiKitPress1/2"PressNot Applicable€377.61
RFQ
JLF007M1-QT (W/PRESS) 1Lead Free Bronze1°C12.1 BarKitPress1"PressNot Applicable€530.13
RFQ
KLF007M2-QT (W/PRESS) 1 1/4Lead Free Bronze1°C12.1 BarKitPress1 1/4"PressNot Applicable€824.14
RFQ
LLF007M2-QT (W/PRESS) 1 1/2Lead Free Bronze33°F175 psiKitPress1 1/2"PressNot Applicable€1,284.43
RFQ
LLF007M1-QT (W/PRESS) 2Lead Free Bronze33°F175 psiKitPress2"Press-€1,180.38
RFQ
ILF007M1-LF-UL 1Lead Free Bronze1°C12.1 BarKitFemale Threaded1"Female ThreadedNPT€569.23
RFQ
ELF007M2 1 1/2Lead Free Bronze33°F175 psiKitFemale Threaded1 1/2"Female ThreadedNPT€944.54
RFQ
WATTS -

LF009 Series Reduced Pressure Zone Assemblies

StyleModelBody MaterialBody FinishStrainerMax. Working PressureMin. Temp.Inlet TypeOutlet SizeOutlet TypePrice
ALF009-QT (W/PRESS) 1/2-PlainNo175 psi33°FPress1/2"Press€503.02
RFQ
BLF009-QT-S-FDA-FS 2 1/2---------
RFQ
CLF009-QT-S-FDA-FS 3---------
RFQ
DLF009-QT-S-FS 1/2---------
RFQ
ELF009-QTW/PRESS-FS 1/2---------
RFQ
FLF009M2-LF-FS 1---------
RFQ
GLF009M2-LF-FS 1 1/2---------
RFQ
HLF009M2-LF-FS 1 1/4---------
RFQ
ILF009-OSY 2 1/2Cast IronEpoxy CoatedNo175 psi0.5°CFemale Threaded2 1/2"Female Threaded€5,443.99
RFQ
JLF009-QT-S 3/8Lead Free BronzeBronzeYes12.1 Bar33°FFemale Threaded3/8"Female Threaded€542.72
RFQ
JLF009-QT-S 1/4Lead Free BronzeBronzeYes12.1 Bar33°FFemale Threaded1/4"Female Threaded€516.90
RFQ
KLF009-QT 3/8Lead Free BronzeBronzeNo175 psi33°FFemale Threaded3/8"Female Threaded€825.94
RFQ
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Features

  • Watts backflow preventers feature a compact, modular design for installation in tight spaces.
  • Their single-cover, top-entry facility permits easy access for maintenance purposes.
  • They are capable of bearing up to 180 psi pressures and have a maximum operating temperature of 180 degrees F.
  • They come equipped with replaceable seats and seat discs. They do not require any special tools for servicing.

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.