WATTS Temperature And Pressure Relief Valves

ASME and ANSI approved relief valves to protect water heaters and hot-water storage tanks from high temperature (max. 250 degrees F) and pressure (max. 150 psi) levels. Available in bronze, lead-free brass & lead-free copper silicon alloy material

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WATTS -

LF1XL Series Lead Free Temperature and Pressure Relief Valves

StyleModelPressure RangeRelief Valve PressureThermostat Probe LengthMax. Temp.Max. Working PressureDischarge CapacityInlet SizeOutlet SizePrice
ALF1XL 75-210 1/275 psi to 150 psi75 psi-210°F--1/2"1/2"€75.64
ALF1XL 100 1/275 psi to 150 psi100 psi-210°F--1/2"1/2"€68.39
BLF1XL-BP-TT-15021075 psi to 150 psi150 psi-210°F--1/2"1/2"€67.22
BLF1XL 150-210 1/2Not Applicable150 psi4"210°F113 psi15000 btuH1/2"1/2"€68.39
BLF1XL-8 150-210 1/2Not Applicable150 psi8"210°F--1/2"1/2"€72.21
StyleModelBody MaterialFactory Set PressureDischarge CapacityOutlet TypeOverall HeightMax. Working PressureConnection TypeInlet Thread TypePrice
ALF3L-150-Z9 3/4-----150 psi-NPT€159.69
ALF3L-175-Z2 3/4-------NPT€134.07
ALF3L-75-Z9 3/4-----150 psi-NPT€167.31
A3/4 LF3L-075Copper Alloy75 psi200000 btuHNPT3 3/16"150 psiMNPT x FNPTNPT€331.18
ALF3L-100 3/4Lead Free Copper Alloy----150 psi-NPT€146.70
A3/4 LF3L-150Lead Free Copper Alloy150 psi370000 btuHFemale Threaded3 1/2"150 psiMNPT x FNPTNPT€331.18
WATTS -

LFN240 Series Automatic Re Seating Temperature And Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet SizeOutlet SizeInlet TypeInlet Thread TypeThermostat MaterialRelief Valve PressurePrice
ALFN241X 150-210 1 1/4Copper Silicon Alloy4059000 btuH1 1/4"1 1/4"Male ThreadedNPTStainless Steel150 psi-
RFQ
BLFN240X 100-210 1Lead Free Brass2817000 btuH1"1"Female ThreadedFPTStainless Steel100 psi€1,807.70
BLFN240X-9 125-210 1Lead Free Brass3438000 btuH1"1"Female ThreadedFPTStainless Steel125 psi€2,072.05
ALFN241X 100-210 1 1/4Lead Free Brass2817000 btuH1 1/4"1 1/4"Male ThreadedNPTStainless Steel100 psi€1,975.76
ALFN241X-8 125-210 1 1/4Lead Free Brass3438000 btuH1 1/4"1 1/4"Male ThreadedNPTStainless Steel125 psi€2,298.17
ALFN241X-8 75-210 1 1/4Lead Free Brass2195000 btuH1 1/4"1 1/4"Male ThreadedNPTStainless Steel75 psi€2,258.45
ALFN241X 125-210 1 1/4Lead Free Bronze3438000 btuH1 1/4"1 1/4"Male ThreadedNPTCopper125 psi€2,013.98
WATTS -

Relief Valves

StyleModelFactory Set PressureConnection TypeBody MaterialInlet SizeOutlet SizeOverall HeightDisc MaterialOutlet TypePrice
A3/4 LFBRVM1SXSXB-125125 psiSocket x SocketBronze3/4"3/4"4 3/4"Synthetic Rubber-€226.60
B3/4 LFBRVM1TXTXB-125125 psiFNPT x FFPTBronze3/4"3/4"4 3/4"Synthetic RubberFPT€243.93
C3/4 LF53-125125 psiMNPTF x FNPTFBrass3/4"3/4"2 7/8"Buna N-€387.95
D1/2 530-FP150 psiMNPT x FNPTBrass1/2"1/2"3"Buna NNPT€233.90
WATTS -

Temperature & Pressure Relief Valve, 150 psi

StyleModelFactory Set PressureThermostat LengthDischarge CapacityInlet TypeOutlet TypeBody WidthConnection TypeBody MaterialPrice
AL100XL-3100 psi4"100000 btuHMNPTFNPT1 7/8"MNPT x FNPTBrass€46.76
BLLL100XL100 psi2 5/32"105000 btuHMNPTFNPT1 3/4"MNPT x FNPTBrass€53.12
BLL100XL150 psi2 1/2"100000 btuHMale ThreadedFemale Threaded1 3/4"MNPT x FNPTBrass€49.40
StyleModelBody MaterialMax. Temp.Inlet SizeOutlet SizeInlet TypeOutlet TypePressure RangeLeadPrice
AN240X9 75-210 1Bronze210°F1"1"Female ThreadedFemale Threaded75 psi to 150 psiPresent€1,367.03
AN240X-075/210 1Bronze210°F1"1"Female ThreadedFemale Threaded75 psi to 150 psiPresent€1,215.40
WATTS -

LF40L Series Temperature and Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet SizeOutlet SizeRelief Valve PressureMax. Temp.Factory Set PressureConnection TypePrice
ALF40XL-125210 3/4---------
RFQ
ALF40XL-8 150210 3/4Copper Silicon Alloy1437600 btuH3/4"3/4"150 psi210°F150 psiMNPTF x FNPTF-
RFQ
BLF40XL7 75-210 1Lead Free Brass1155000 btuH1"1"75 psi210°F--€960.14
CLF40XL 100-210 3/4Lead Free Brass-3/4"3/4"100 psi210°F--€602.06
CLF40XL-8 100-210 3/4Lead Free Brass-3/4"3/4"100 psi210°F--€401.11
DLF40L 150-210 3/4Lead Free Brass-3/4"3/4"150 psi210°F--€547.03
ELF40L 125-210 1Lead Free Brass1218000 btuH1"1"125 psi210°F--€940.50
WATTS -

1XL Series Temperature and Pressure Relief Valves

StyleModelThermostat Probe LengthBody MaterialInlet SizeInlet TypeOutlet TypePressure RangeInlet Thread TypeShank LengthPrice
A1XL-125210---------
RFQ
B1XL-100---------
RFQ
C1XL-150210 1/24"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"€82.84
C1XL 75-210 1/24"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"€58.07
C1XL-8-1502108"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"€55.00
WATTS -

LF140 Series Pressure Relief Valves

StyleModelBody MaterialBody HeightThermostat LengthDischarge CapacityInlet SizeOutlet SizeInlet TypeRelief Valve PressurePrice
ALF140X6 125-210 1Copper Silicon Alloy5 3/4"6"2610000 btuH1"1"Female Threaded125 psi€2,471.84
BLF1403S 125-210 3/4Copper Silicon Alloy5 5/8"3"218000 btuH3/4"3/4"Male Threaded125 psi€1,585.61
BLF140X8 150-210 3/4Lead Free Brass---3/4"3/4"Female Threaded150 psi€692.21
BLF140X6 125-210 3/4Lead Free Brass---3/4"3/4"Female Threaded125 psi€656.31
CLF140X8 125-210 3/4Lead Free Brass---3/4"3/4"Female Threaded125 psi€717.55
StyleModelBody MaterialMax. Temp.Inlet TypeOutlet TypeInlet Thread TypeMin. Temp.Ball MaterialControl TypePrice
A94-4242Brass125°FFemale ThreadedFemale ThreadedNPT-40°FChrome PlatedTee Handle€18.89
RFQ
A94-3232Brass125°FFemale ThreadedFemale ThreadedNPT-40°FChrome PlatedTee Handle€13.64
RFQ
WATTS -

93 Series Angle Connector Gas Shutoff Valves

StyleModelInlet TypeOutlet TypeInlet MaterialOutlet MaterialFinishInlet SizePrice
A93-1032Flare JointFemale ThreadedBrassBrassBrass3/8"€14.04
RFQ
B93-3042Flare JointFemale ThreadedBrassBrassBrass-€23.98
RFQ
C93-2032Flare JointFemale ThreadedBrassBrassBrass-€17.25
RFQ
WATTS -

40L Series Automatic Re Seating Temperature and Pressure Relief Valves

StyleModelConnection TypeDischarge CapacityOutlet SizeRelief Valve PressureInlet SizeBody MaterialMax. Temp.Factory Set PressurePrice
A40XL-075210 1-1155000 btuH1"75 psi1"Bronze210°F-€759.43
B40XL-075210 3/4--3/4"75 psi-Bronze210°F-€481.36
B40XL-125210 3/4--3/4"125 psi-Bronze210°F-€448.49
B40XL-8-075210 3/4--3/4"75 psi-Bronze210°F-€526.40
B40XL-8-085210 3/4--3/4"85 psi-Bronze210°F-€577.61
A40XL-150210 1MNPTF x FNPTF2134000 btuH1"150 psi1"Bronze210°F150 psi€562.08
B40XL-Z2-150210 3/4MNPT x FNPT-3/4"150 psi3/4"Bronze-150 psi€1,025.64
WATTS -

140 Series Automatic Re Seating Temperature and Pressure Relief Valves

StyleModelInlet SizeOutlet SizeRelief Valve PressureBody MaterialMax. Temp.Discharge CapacityInlet TypeOutlet TypePrice
A140X9-75210 11"1"75 psiBronze210°F-Female ThreadedFemale Threaded€1,104.96
B140S3-075210 11"1"75 psiBronze210°F1670000 btuHFemale ThreadedFemale Threaded€728.11
A140X9-100210 11"1"100 psiBronze210°F-Female ThreadedFemale Threaded€897.49
A140S3-075210 3/43/4"3/4"75 psiBronze210°F-Female ThreadedFemale Threaded€481.36
A140X8-75210 3/43/4"3/4"75 psiBronze210°F-Female ThreadedFemale Threaded€538.07
StyleModelPressure RangeInlet Thread TypeRelief Valve PressureMax. Temp.Factory Set PressureConnection TypeMax. Working PressureDischarge CapacityPrice
ALF174A-100 230 psi to 150 psiNPT100 psi250°F100 psiFnptf x FNPTF75 psi9970000 btuH€5,810.52
ALF174A-110 250 psi to 150 psiFPT110 psi250°F----€2,559.49
RFQ
StyleModelBody MaterialInlet SizeOutlet SizeInlet Thread TypeMax. Temp.Factory Set PressureConnection TypeMax. Working PressurePrice
ALF140X6 150-210 1Copper Silicon Alloy1"1"NPT210°F150 psiFnptf x FNPTF113 psi-
RFQ
ALF140X6 150-210 3/4Lead Free Brass3/4"3/4"FPT210°F---€643.30
StyleModelInlet SizeOutlet SizeOutlet TypeBody MaterialMax. Temp.Factory Set PressureConnection TypeMax. Working PressurePrice
A530FP1/2"1/2"Female ThreadedBrass180°F---€111.93
A530C-STD 1/21/2"1/2"Female ThreadedBrass180°F---€111.93
A530C-100-3003/4"3/4"Female Threaded-180°F--300 psi€138.68
A530C-STD 3/43/4"1/2"NPTBrass-150 psiMNPT x FNPT-€240.13
WATTS -

53 Series Pressure Relief Valves

StyleModelMax. Working PressureInlet SizeOutlet SizePressure RangeInlet Thread TypeRelief Valve PressureBody MaterialInlet TypePrice
A53-035 1/235 psi1/2"1/2"0 psi to 35 psiNPTF35 psiBronzeMale Threaded€116.50
A53-075 1/275 psi1/2"1/2"0 psi to 75 psiNPTF75 psiBronzeMale Threaded€204.60
B53-075 3/475 psi3/4"3/4"0 psi to 75 psiNPTF75 psiBronzeMale Threaded€121.47
B53-100 1/2100 psi1/2"1/2"75 psi to 175 psiNPT100 psiBronzeMale Threaded€124.54
B53-125 1/2125 psi1/2"1/2"0 psi to 125 psiNPTF125 psiBronzeMale Threaded€165.00
A53-125 3/4125 psi3/4"1/2"0 psi to 125 psiNPTF125 psiBronzeMale Threaded€117.67
WATTS -

40L Series Temperature And Pressure Relief Valves

StyleModelDischarge CapacityOutlet SizeThermostat Probe LengthRelief Valve PressureBody MaterialMax. Working PressureMax. Temp.Inlet TypePrice
A40L-075210 3/4-3/4"3"75 psiBronze150 psi210°FMale Threaded€446.21
B40XL-8-125210 3/4-3/4"8"125 psiBronze150 psi210°FMale Threaded€526.40
B40XL-8-100210 3/4-3/4"8"100 psiBronze150 psi210°FMale Threaded€446.45
B40XL-7-125210 11808000 btuH1"8"125 psiBronze150 psi210°FMale Threaded€705.97
A40L-150210 12135000 btuH1"3"150 psiBronze150 psi210°FMale Threaded€668.53
WATTS -

335 Series Asme Safety Valves

StyleModelBody MaterialDischarge CapacityMax. Temp.Max. Working PressureFactory Set PressureConnection TypePressure RangeInlet Thread TypePrice
A354A-030Brass490000 btuH250°F---Not ApplicableNPT€79.46
B335M2-030 3/4Bronze-250°F20 psi--Not ApplicableNPT€123.00
CM335M2-030 3/4Bronze510000 btuH250°F20 psi30 psiNPTM x NPTFNot ApplicableNPT€92.76
RFQ
WATTS -

LF174A Series Lead Free Boiler Pressure Relief Valves

StyleModelMPN
ALF174A 040 FS 3/4LF174A 040 FS 3/4
RFQ
BLF174A 050 FS 1LF174A 050 FS 1
RFQ
CLF174A 050 FS 1 1/2LF174A 050 FS 1 1/2
RFQ
DLF174A 050 FS 1 1/4LF174A 050 FS 1 1/4
RFQ
ELF174A 050 FS 3/4LF174A 050 FS 3/4
RFQ
BLF174A 060 FS 1LF174A 060 FS 1
RFQ
CLF174A 060 FS 1 1/2LF174A 060 FS 1 1/2
RFQ
DLF174A 060 FS 1 1/4LF174A 060 FS 1 1/4
RFQ
FLF174A 060 FS 2LF174A 060 FS 2
RFQ
ELF174A 065 FS 3/4LF174A 065 FS 3/4
RFQ
BLF174A 070 FS 1LF174A 070 FS 1
RFQ
GLF174A 070 FS 1 1/4LF174A 070 FS 1 1/4
RFQ
ELF174A 070 FS 3/4LF174A 070 FS 3/4
RFQ
HLF174A 075 FS 1LF174A 075 FS 1
RFQ
DLF174A 075 FS 1 1/4LF174A 075 FS 1 1/4
RFQ
FLF174A 075 FS 2LF174A 075 FS 2
RFQ
ELF174A 075 FS 3/4LF174A 075 FS 3/4
RFQ
HLF174A 080 FS 1LF174A 080 FS 1
RFQ
CLF174A 080 FS 1 1/2LF174A 080 FS 1 1/2
RFQ
DLF174A 080 FS 1 1/4LF174A 080 FS 1 1/4
RFQ
FLF174A 080 FS 2LF174A 080 FS 2
RFQ
ALF174A 080 FS 3/4LF174A 080 FS 3/4
RFQ
BLF174A 085 FS 1LF174A 085 FS 1
RFQ
ILF174A 085 FS 1 1/2LF174A 085 FS 1 1/2
RFQ
FLF174A 085 FS 2LF174A 085 FS 2
RFQ
WATTS -

342 Series Temperature And Pressure Relief Valves

StyleModelDischarge CapacityOutlet SizeRelief Valve PressureBody MaterialInlet SizeInlet TypeOutlet TypePressure RangePrice
A342X-8 150/210 FS 2---------
RFQ
B342-3 150/210 FS 2---------
RFQ
C342-3 125/210 FS 2---------
RFQ
B342-3 75/210 FS 2---------
RFQ
C342-3 100/210 FS 2---------
RFQ
D342-125210 25403000 btuH2"125 psiBronze2"Female ThreadedFemale Threaded75 psi to 150 psi€2,713.81
D342X-8-150210 26379000 btuH1 1/2"150 psiBronze2"Female ThreadedFemale Threaded75 psi to 150 psi€3,138.64
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