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 -

LF100XL Series Temperature and Pressure Relief Valves

StyleModelBody HeightBody MaterialInlet TypeItemMax. Temp.Max. Working PressureMfr. SeriesOutlet TypePrice (ex. VAT)
A3/4 LF L100XL 150-210---Pressure Relief Valve----€54.92
BLF100XL-150210-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210° F113 psiLF100XLFemale Threaded€32.09
BLF100XL4-Z11 150-180-Lead Free Copper AlloyMale ThreadedTemperature and Pressure Relief Valve-150 psiLF100XLFemale Threaded€75.64
CLF100XL-8 125-210 3/4-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210 Degree F-LF100XLFemale Threaded€77.91
DLF100XL 100-210 3/4-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210 Degree F-LF100XLFemale Threaded€74.87
ELFSL100XL-150/210 3/4-BronzeMale ThreadedTemperature and Pressure Relief Valve210 Degree F-LFSL100XLFemale Threaded€80.16
FLFL100XL3-150210-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210° F113 psiLF100XLFemale Threaded€50.27
GLF100XL8 150-210 3/4---Pressure Relief Valve----€50.82
HLF100XL-Z11 100-180-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210° F75 PSILF100XLFemale Threaded€75.64
DLF100XL 125-210 3/4-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210 Degree F-LF100XLFemale Threaded€42.75
FLFL100XL 100-210-Lead Free BrassMale ThreadedTemperature and Pressure Relief Valve210° F-LF100XLFemale Threaded€77.13
CLF100XL-8 175-210 3/4-Lead Free Copper AlloyMale ThreadedTemperature and Pressure Relief Valve--LF100XLFemale Threaded€77.91
CLF100XL-8 100-210 3/4-Lead Free Copper AlloyMale ThreadedTemperature and Pressure Relief Valve--LF100XLFemale Threaded€81.69
DLF100XL 175-210 3/4-Lead Free Copper Silicon AlloyMale ThreadedTemperature and Pressure Relief Valve210 Degree F-LF100XLFemale Threaded€38.40
I3/4 LF 100XL-43.5"BronzeMNPTTemperature & Pressure Relief Valve210 Degrees F--FNPT€28.41
J3/4 LF LL100XL4.75"BronzeMNPTTemperature & Pressure Relief Valve210 Degrees F--FNPT€31.92
K3/4 LF LLL100XL5.25"BronzeMNPTTemperature & Pressure Relief Valve210 Degrees F--FNPT€57.21
WATTS -

Temperature and Pressure Relief Valves

StyleModelBody MaterialItemMfr. SeriesPrice (ex. VAT)
A3/4 40XL8 150210-Pressure Relief Valve--
RFQ
B1L-2-150210BronzeTemperature and Pressure Relief Valve1L€54.08
C100DTPVCTemperature and Pressure Relief Valve100DT€13.13
WATTS -

740 Series Water Boiler Relief Valves

StyleModelDischarge CapacityInlet SizeMax. Temp.Max. Working PressureOutlet SizeRelief PressurePrice (ex. VAT)
A740-050 3/4-3/4"250 Degree F-1"50 Psi€222.84
A740-075 3/4-3/4"250 Degree F-1"75 Psi€213.85
A740-040 3/4-3/4"250 Degree F-1"40 Psi€490.44
B740-030 1 1/42105000 btuh1 1/4"250° F20 psi1-1/2"30 Psi€839.03
B740-030 1 1/22900000 btuh1 1/2"250° F20 psi2"30 Psi€868.16
B740-050 1 1/43075000 btuh1 1/4"250° F38 psi1-1/2"50 Psi€822.48
StyleModelDischarge CapacityMax. Working PressureRelief PressurePrice (ex. VAT)
A174A-030 23815000 btuh20 psi30 Psi€1,348.14
RFQ
A174A-Z3-T-0303815000 btuh At 30 psi-30 Psi€1,951.28
RFQ
A174A-35 24250000 btuh At 35 psi25 psi35 Psi€2,144.89
RFQ
A174A-036 24344000 btuh At 36 psi26 psi36 Psi€2,144.89
RFQ
A174A-040 24690000 btuh At 40 psi30 psi40 Psi€2,144.89
RFQ
A174A-045 25130000 btuh At 45 psi35 PSI45 Psi€2,144.89
RFQ
A174A-050 25575000 btuh At 50 psi38 psi50 Psi€2,004.22
RFQ
A174A-55 26010000 btuh At 55 psi41 psi55 Psi€2,144.89
RFQ
A174A-060 26450000 btuh At 60 psi45 psi60 Psi€2,144.89
RFQ
A174A-65 26890000 btuh At 65 psi49 psi65 Psi€2,144.89
RFQ
A174A-70 27330000 btuh At 70 psi53 psi70 Psi€2,144.89
RFQ
A174A-075 27770000 btuh At 75 psi56 psi75 Psi€2,004.22
RFQ
A174A-80 28215000 btuh At 80 psi60 psi80 Psi€2,144.89
RFQ
A174A-85 28650000 btuh At 85 psi64 psi85 Psi€2,004.22
RFQ
A174A-88 28920000 btuh At 88 psi66 psi88 Psi€2,144.89
RFQ
A174A-90 29090000 btuh At 90 psi68 psi90 Psi€2,144.89
RFQ
A174A-95 29530000 btuh At 95 psi71 psi95 Psi€2,144.89
RFQ
WATTS -

174A Series Water Boiler Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeMax. Temp.Max. Working PressureOutlet SizeRelief PressurePrice (ex. VAT)
A174A-030 3/4-3/4"250 Degree F-3/4"30 Psi€193.42
A174A-095 3/4-3/4"250 Degree F-3/4"95 Psi€306.72
A174A-130 3/4-3/4"250 Degree F-3/4"130 Psi€377.63
A174A-115 3/4-3/4"250 Degree F-3/4"115 Psi€377.63
A174A-060 3/4-3/4"250 Degree F-3/4"60 Psi€298.74
A174A-045 3/4-3/4"250 Degree F-3/4"45 Psi€366.19
A174A-115 1 1/4-1-1/4"250 Degree F-1-1/4"115 Psi€1,026.30
A174A-140 1-1"250 Degree F-1"140 Psi€800.58
A174A-145 1-1"250 Degree F-1"145 Psi€800.58
B174A-35 1 1/22250000 btuh At 35 psi1 1/2"250° F25 psi1-1/2"35 Psi€1,485.41
B174A-036 1 1/22310000 btuh At 36 psi1 1/2"250° F26 psi1-1/2"36 Psi€1,485.41
B174A-050 1 1/42459000 btuh1 1/4"250° F38 psi1-1/4"50 Psi€1,002.85
B174A-0402490000 btuh At 40 psi1 1/2"250° F30 psi1-1/2"40 Psi€1,485.41
B174A-045 1 1/22720000 btuh At 45 psi1 1/2"250° F35 PSI1-1/2"45 Psi€1,485.41
B174A-050 1 1/22950000 btuh At 50 psi1 1/2"250° F38 psi1-1/2"50 Psi€1,485.41
B174A-65 1 1/43041000 btuh At 65 psi1 1/4"250° F49 psi1-1/4"65 Psi€1,075.49
B174A-55 1 1/23190000 btuh At 55 psi1 1/2"250° F41 psi1-1/2"55 Psi€1,485.41
B174A-060 1 1/23425000 btuh At 60 psi1 1/2"250° F45 psi1-1/2"60 Psi€1,485.41
B174A-65 1 1/23660000 btuh At 65 psi1 1/2"250° F49 psi1-1/2"65 Psi€1,485.41
B174A-70 1 1/23890000 btuh At 70 psi1 1/2"250° F53 psi1-1/2"70 Psi€1,485.41
B174A-90 1 1/44011000 btuh At 90 psi1 1/4"250° F68 psi1-1/4"90 Psi€1,075.49
B174A-075 1 1/24125000 btuh At 75 psi1 1/2"250° F56 psi1-1/2"75 Psi€1,485.41
B174A-80 1 1/24360000 btuh At 80 psi1 1/2"250° F60 psi1-1/2"80 Psi€1,485.41
B174A-1004399000 btuh At 100 psi1 1/4"250° F75 PSI1-1/4"100 Psi€1,002.85
B174A-85 1 1/24590000 btuh At 85 psi1 1/2"250° F64 psi1-1/2"85 Psi€1,485.41
WATTS -

LF1XL Series Temperature and Pressure Relief Valves

StyleModelMax. Temp.Relief PressurePrice (ex. VAT)
ALF1XL 75-210 1/2210° F75 Psi€74.87
BLF1XL 100 1/2210° F100 Psi€67.70
BLF1XL 150-210 1/2210° F150 Psi€67.70
BLF1XL-BP-TT-150210210° F150 Psi€66.54
CLF1XL-8 150-210 1/2210 Degree F150 Psi€71.48
StyleModelBody MaterialRelief PressureShank LengthPrice (ex. VAT)
ALF10L-2 125-210 3/4Lead Free Bronze125 psi1 3/16"€77.91
ALF10L-2 75-210 3/4Lead Free Bronze75 Psi1 3/16"€77.91
ALF10L-2 150-210 3/4Lead Free Copper Silicon Alloy150 Psi1 1/8"€70.70
WATTS -

Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet ConnectionInlet SizeInlet TypeMax. Temp.Mfr. SeriesOutlet SizePrice (ex. VAT)
ASAN50-D--------€1,324.08
RFQ
B740-040 2--------€2,216.77
RFQ
C0121544--------€2,605.72
RFQ
DLF174A-125 1 1/2--------€2,481.13
RFQ
E174A-030 1 1/2--------€1,096.11
RFQ
FLF174A-100 1 1/4--------€1,332.34
RFQ
G174A-030 1 1/4--------€864.46
RFQ
H740-060 1 1/4--------€1,037.87
RFQ
ILF174A-80 1 1/4--------€1,855.86
RFQ
JLF174A-150 2--------€3,653.96
RFQ
KLF174A-75 1--------€1,076.33
RFQ
L0382392--------€353.06
RFQ
MLF174A-100 3/4--------€315.47
RFQ
NLF174A-125 3/4--------€331.64
RFQ
O0121484--------€351.20
RFQ
NLF174A-60 3/4--------€528.73
RFQ
PLF174A-75 3/4--------€366.44
RFQ
N740-030 3/4--------€188.87
RFQ
Q740-040 1 1/2--------€1,476.40
RFQ
RLF174A-125 1--------€884.87
RFQ
S740-045 1 1/2--------€1,640.49
RFQ
TLF174A-150 1--------€897.61
RFQ
NLFF116-23 0-30 1 1/4------LFF116-€3,407.66
RFQ
ULF174A-100 1--------€1,063.88
RFQ
V740-045 2--------€2,268.54
RFQ
WATTS -

Boiler Pressure Relief Valves

StyleModelPrice (ex. VAT)
ALF474AM2-125€147.86
B474A-M2-125€162.68
CM375M1-075 3/4€212.68
StyleModelRelief PressurePrice (ex. VAT)
A374A-BRZ-03030 Psi€132.59
A374A-045 3/445 Psi€115.33
A374A-050 3/450 Psi€213.93
WATTS -

340 Series Automatic Re-Seating Temperature and Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeMfr. SeriesOutlet SizeRelief PressurePrice (ex. VAT)
A340X-8-Z-175210 1 1/2-1 1/2"3401-1/2"175 Psi€3,559.16
B340-075/210 1 1/2-1-1/2"3401-1/2"75 Psi€3,374.69
B340X-8-80210 1 1/2-1-1/2"3401-1/2"80 Psi€3,586.17
C342-100210 2-2"3422"100 Psi€3,380.02
C342X-8-100210 2-2"3422"100 Psi€3,586.17
B340X-8-75210 1 1/2-1-1/2"3401-1/2"75 Psi€3,349.82
A340X-8-100210 1 1/24426000 btuh1 1/2"3401-1/2"100 Psi€3,052.45
D342X-8-125210 25403000 btuh2"3422"125 psi€3,185.57
WATTS -

LFN9 Series, Dual Check with Atmospheric Vent

StyleModelBody MaterialInlet SizeInlet TypeMax. Temp.Outlet SizeOutlet TypePrice (ex. VAT)
ALFNLF9Lead-Free Brass3/8"MNPT180 Degrees F3/8"FNPT€166.22
BLFN9-1/4"Lead Free Brass1/4"Female Threaded140 Degree F1/4"Female Threaded€109.11
BLFN9-3/8"Lead Free Brass3/8"Female Threaded140 Degree F3/8"Female Threaded€212.24
CLFN9C-1/4"Lead Free Brass1/4"Female Threaded140 Degree F1/4"Female Threaded€120.50
StyleModelPressure RangeRelief PressurePrice (ex. VAT)
ALF174A-100 230 to 150 psi100 Psi€3,653.96
RFQ
ALF174A-120 250 to 150 psi120 Psi€2,713.64
RFQ
ALF174A-130 250 to 150 psi130 Psi€2,713.64
RFQ
ALF174A-110 250 to 150 psi110 Psi€2,533.63
RFQ
ALF174A-140 250 to 150 psi140 Psi€2,713.64
RFQ
ALF174A-135 250 to 150 psi135 Psi€2,713.64
RFQ
WATTS -

Automatic Temperature Gas Shutoff Valves, 150 psi

StyleModelBody HeightShank LengthPrice (ex. VAT)
ALF210-5-M210.25"7/8"€508.00
BLFL210-5-M211 15/16"1.875"€518.26
CLFLLL210-5-M212 13/16"2.875"€674.53
WATTS -

Boiler Water Feeders

StyleModelPrice (ex. VAT)
A142S€1,479.51
B142€1,449.22
WATTS -

740 Series Water Pressure Relief Valves

Watts 740 Series pressure relief valves are ideal for protecting water heating equipment from excessive pressure. They are used in the pipeline or with vessels in pneumatics applications. These valves feature an iron body ensuring structural rigidity and durability. They feature non-mechanical seat-to-disc alignment that prevents the valve from sticking or freezing, ensuring smooth and consistent operation over time. Their seat is strategically located above the drain, preventing water from being trapped and sediment from fouling the seats. They can operate at pressures ranging from 30 to 75 psi (2 to 5 bar), providing reliable performance.

StyleModelDischarge CapacityInlet SizeMax. Working PressureOutlet SizeRelief PressurePrice (ex. VAT)
A740-045 11750000 btuh At 45 psi1"-1-1/4"45 Psi€873.45
A740-050 11899000 btuh1"38 psi1-1/4"50 Psi€349.59
A740-060 12200000 btuh1"45 psi1-1/4"60 Psi€608.19
A740-030 25250000 btuh2"20 psi2-1/2"30 Psi€1,338.52
RFQ
A740-060 28883000 btuh At 60 psi2"45 psi2-1/2"60 Psi€2,351.90
RFQ
WATTS -

N240 Series Automatic Re Seating Temperature And Pressure Relief Valves

Watts N240 Series automatic re-seating temperature and pressure relief valves provide reliable and automatic protection for hot water storage tanks and water heaters in commercial applications. These valves have tamper-resistant bonnet screws that prevent unauthorised adjustments or tampering. They feature an automatic reseating function that prevents excessive temperature or pressure buildup within the water heater or storage tank. These Watts N240 Series valves offer stainless steel thermostat tubes to prevent corrosion.

StyleModelRelief PressurePrice (ex. VAT)
AN241X 75-210 1 1/475 Psi€1,618.92
AN241X8 100-210 1 1/4150 Psi€1,402.30
StyleModelBody MaterialDischarge CapacityRelief PressurePrice (ex. VAT)
ALF40L 100-210 1Lead Free Brass998000 btuh100 Psi€931.00
ALF40L 150-210 1Lead Free Bronze2134000 btuh150 Psi€995.87
WATTS -

LF53 Series Pressure Relief Valves

StyleModelInlet SizeOutlet SizeRelief PressurePrice (ex. VAT)
ALF53-75 1/21/2"1/2"75 Psi€147.49
BLF53-100 1/21/2"1/2"100 Psi€155.80
BLF53-125 1/21/2"1/2"125 psi€142.92
CLF53-125 3/43/4"3/4"125 psi€162.60
CLF53-75 3/43/4"3/4"75 Psi€153.55
DLF53-100 3/43/4"3/4"100 Psi€173.54
StyleModelRelief PressurePrice (ex. VAT)
ALF174A-90 290 Psi€2,713.64
RFQ
ALF174A-95 295 Psi€2,713.64
RFQ
WATTS -

LF340 Series Automatic Re-Seating Temperature and Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet ConnectionInlet SizeInlet Thread TypeInlet TypeOutlet SizeRelief PressurePrice (ex. VAT)
ALF340X-8 100-210 1 1/2Bronze4426000 btuhFemale Threaded1 1/2"FPTFemale Threaded1-1/2"100 Psi€4,043.23
ALF340 100-210 1 1/2Bronze4426000 btuhFemale Threaded1 1/2"FPTFemale Threaded1-1/2"100 Psi€3,805.73
ALF340X-8 125-210 1 1/2Bronze5403000 btuhFemale Threaded1 1/2"FPTFemale Threaded1-1/2"125 psi€5,356.60
ALF340X-8-Z 175-210 1 1/2Bronze-Female Threaded1 1/2"FPTFemale Threaded1-1/2"175 Psi€5,052.14
BLF342X-8 125-210 2Lead Free Copper Silicon Alloy5403000 btuhMale Threaded2"NPTMale Threaded2"125 psi€4,835.85
BLF342 125-210 2Lead Free Copper Silicon Alloy5403000 btuhMale Threaded2"NPTMale Threaded2"125 psi€3,810.26
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