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 -

LL40XL Series Temperature and Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeMax. Temp.Mfr. SeriesOutlet SizeRelief PressurePrice (inc. VAT)
ALL40XL-75210 3/4-3/4"210 Degree FLL40XL3/4"75 Psi£608.02
ALL40XLM15-150210 3/4-3/4"210 Degree FLL40XL3/4"150 Psi£552.66
ALLL40XLM15-150210 3/4-3/4"210 Degree F40L3/4"150 Psi£578.02
ALLL40XLM15-125210 3/4-3/4"210 Degree F40L3/4"125 psi£726.96
BLL40XLM15-125210 11808000 btuh1"210° FLL40XL1"125 psi£1,075.34
BLL40XLM15-150210 12134000 btuh1"210° FLL40XL1"150 Psi£1,004.63
WATTS -

53L Series Pressure Only Relief Valves

StyleModelMax. Working PressureRelief PressurePrice (inc. VAT)
A53L-075 1/2-75 Psi£111.07
A53L-Z2-030 1/2-30 Psi£111.07
A53L-175 1/2-175 Psi£111.07
B53L-150 1/2--£139.42
A53L-100 1/275 PSI100 Psi£111.07
C53L-FP-175 1/2131 psi175 Psi£108.38
StyleModelInlet SizePrice (inc. VAT)
A94-32321/2"£13.72
RFQ
A94-42423/4"£19.00
RFQ
WATTS -

93 Series Angle Connector Gas Shutoff Valves

StyleModelInlet SizePrice (inc. VAT)
A93-20321/2"£17.35
RFQ
B93-10323/8"£14.12
RFQ
C93-30425/8"£24.12
RFQ
WATTS -

Temperature & Pressure Relief Valve, 150 psi

StyleModelBody HeightBody MaterialBody WidthBtuhInlet TypeMax. Temp.Outlet TypeShank LengthPrice (inc. VAT)
AL100XL-34.25"Bronze1.875"100,000MNPT210 Degrees FFNPTExtended£25.83
BLL100XL6.75"Brass1.75"100,000Male Threaded210 Degree FFemale Threaded2"£38.87
BLLL100XL7.75"Bronze1.75"105,000MNPT210 Degrees FFNPTExtended£30.26
WATTS -

LFN9 Series, Dual Check with Atmospheric Vent

StyleModelBody MaterialInlet SizeInlet TypeMax. Temp.Outlet SizeOutlet TypePrice (inc. VAT)
ALFNLF9Lead-Free Brass3/8"MNPT180 Degrees F3/8"FNPT£168.93
BLFN9C-1/4"Lead Free Brass1/4"Female Threaded140 Degree F1/4"Female Threaded£122.46
CLFN9-3/8"Lead Free Brass3/8"Female Threaded140 Degree F3/8"Female Threaded£215.70
CLFN9-1/4"Lead Free Brass1/4"Female Threaded140 Degree F1/4"Female Threaded£110.89
WATTS -

Automatic Temperature Gas Shutoff Valves, 150 psi

StyleModelBody HeightShank LengthPrice (inc. VAT)
ALF210-5-M210.25"7/8"£516.29
BLFL210-5-M211 15/16"1.875"£526.72
CLFLLL210-5-M212 13/16"2.875"£685.55
WATTS -

3L Series Pressure Relief Valves

StyleModelBody MaterialRelief PressurePrice (inc. VAT)
A3L-125 3/4Brass75 Psi£115.68
B3L-075 3/4Bronze75 Psi£115.68
A3L-125-Z9 3/4Bronze125 psi£136.43
A3L-150 3/4Bronze150 Psi£106.05
A3L-100 3/4Bronze100 Psi£126.83
A3L-75-Z9 3/4Bronze75 Psi£131.45
A3L-150-Z9 3/4Bronze150 Psi£124.92
A3L-95 3/4Bronze95 Psi£115.68
WATTS -

Temperature and Pressure Relief Valves

StyleModelBody MaterialItemMfr. SeriesPrice (inc. VAT)
A3/4 40XL8 150210-Pressure Relief Valve--
RFQ
B1L-2-150210BronzeTemperature and Pressure Relief Valve1L£54.96
C100DTPVCTemperature and Pressure Relief Valve100DT£13.35
WATTS -

Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet ConnectionInlet SizeInlet TypeMax. Temp.Mfr. SeriesOutlet SizePrice (inc. VAT)
ASAN50-D--------£1,345.70
RFQ
BLF174A-150 2--------£3,713.62
RFQ
CLF174A-125 1--------£899.32
RFQ
DLF140S3 150-210 1--------£1,132.32
RFQ
E740-030 1--------£372.08
RFQ
F740-040 1 1/2--------£1,500.51
RFQ
G0121544--------£2,648.26
RFQ
HLF174A-125 1 1/2--------£2,521.64
RFQ
I740-040 2--------£2,252.96
RFQ
JLF174A-100 1--------£1,081.25
RFQ
K740-030 3/4--------£191.95
RFQ
L174A-030 1 1/2--------£1,114.00
RFQ
MLF174A-125 1 1/4--------£1,322.83
RFQ
N174A-030 1 1/4--------£878.57
RFQ
OLF174A-80 1 1/4--------£1,886.16
RFQ
KLF140X9 150-210 1--------£1,786.70
RFQ
P0382392--------£358.83
RFQ
KLF174A-60 3/4--------£537.36
RFQ
Q740-040 1 1/4--------£1,225.78
RFQ
R740-045 2--------£2,305.57
RFQ
KLF174A-150 1 1/2--------£2,319.61
RFQ
S740-045 1 1/2--------£1,667.27
RFQ
T740-045 1 1/4--------£1,256.72
RFQ
ULF174A-100 1 1/4--------£1,354.10
RFQ
V740-060 1 1/2---------
RFQ
StyleModelRelief PressurePrice (inc. VAT)
A374A-BRZ-03030 Psi£134.76
A374A-045 3/445 Psi£117.21
A374A-050 3/450 Psi£217.43
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 (inc. VAT)
A740-045 11750000 btuh At 45 psi1"-1-1/4"45 Psi£887.71
A740-050 11899000 btuh1"38 psi1-1/4"50 Psi£355.30
A740-060 12200000 btuh1"45 psi1-1/4"60 Psi£618.12
A740-030 25250000 btuh2"20 psi2-1/2"30 Psi£1,360.37
RFQ
A740-060 28883000 btuh At 60 psi2"45 psi2-1/2"60 Psi£2,390.30
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 (inc. VAT)
AN241X 75-210 1 1/475 Psi£1,645.35
AN241X8 100-210 1 1/4150 Psi£1,425.20
WATTS -

LF53 Series Pressure Relief Valves

StyleModelInlet SizeOutlet SizeRelief PressurePrice (inc. VAT)
ALF53-75 1/21/2"1/2"75 Psi£149.90
BLF53-100 1/21/2"1/2"100 Psi£158.34
BLF53-125 1/21/2"1/2"125 psi£145.26
CLF53-125 3/43/4"3/4"125 psi£165.26
CLF53-75 3/43/4"3/4"75 Psi£156.05
DLF53-100 3/43/4"3/4"100 Psi£176.37
WATTS -

100XL Series Temperature and Pressure Relief Valves

StyleModelBody MaterialBody WidthBtuhFactory Set PressureInlet TypeItemMax. Temp.Max. Working PressurePrice (inc. VAT)
A100XL4Z11 150180 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve180 Degree F-£55.34
B100XL-8-100210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F100 PSI£67.85
C100XL-125210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F125 psi£33.45
B100XL-8-175210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F175 PSI£71.09
C100XL-175-210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F175 PSI£30.32
DLLL100XL-2M7-150210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£48.05
CDP100XL-TT-150210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F150 psi£149.90
EL100XLM7-3-125210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£63.41
C100XL-BP-150210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F150 psi£38.05
B100XL-8-125210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F125 psi£58.66
F100XL-090210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F90 psi£64.58
A100XL-B-150210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£44.24
A100XL-150 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£25.36
A100XL-100210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£52.27
G100XL-8-150210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£36.49
C100XL-075210Brass---Male ThreadedTemperature and Pressure Relief Valve210° F75 PSI£37.29
F100XL-100180-Z11Brass---Male ThreadedTemperature and Pressure Relief Valve180° F113 psi£55.34
EL100XL-100210 3/4Brass---Male ThreadedTemperature and Pressure Relief Valve210 Degree F-£63.41
H100XL-4Bronze1.875"100,000150 psiMNPTTemperature & Pressure Relief Valve210 Degrees F-£17.64
H3/4 100XL 125Bronze1.75"105,000125 psiMNPTTemperature & Pressure Relief Valve210 Degrees F-£30.30
WATTS -

Relief Valves

StyleModelItemPrice (inc. VAT)
A3/4 LF53-125Pressure Relief Valve£212.25
B1/2 530-FPPressure Relief Valve£121.33
C3/4 LFBRVM1SXSXB-125Relief Valve£121.88
D3/4 LFBRVM1TXTXB-125Relief Valve£149.70
StyleModelPrice (inc. VAT)
AN240X9 75-210 1£1,375.32
AN240X-075/210 1£1,222.77
WATTS -

LF3L Series Pressure Relief Only Valves

StyleModelBody MaterialRelief PressurePrice (inc. VAT)
ALF3L-075 3/4--£187.75
BLF3L-150 3/4--£168.83
CLF3L-175-Z2 3/4Lead Free Copper Alloy175 Psi£134.88
CLF3L-75-Z9 3/4Lead Free Copper Alloy75 Psi£168.32
CLF3L-100 3/4Lead Free Copper Silicon Alloy100 Psi£147.59
CLF3L-150-Z9 3/4Lead Free Copper Silicon Alloy150 Psi£160.65
WATTS -

SL100XL Series Temperature and Pressure Relief Valves

StyleModelRelief PressurePrice (inc. VAT)
A3/4 SL100XL 125/210 3/4125 psi£63.41
BSL100XL-Z5-150210 3/4150 Psi£61.89
WATTS -

LF140 Series Pressure Relief Valves

StyleModelBody MaterialDischarge CapacityInlet SizeInlet Thread TypeInlet TypeMax. Temp.Outlet SizeRelief PressurePrice (inc. VAT)
ALF1403S 125-210 3/4Lead Free Brass-3/4"-Male Threaded210 Degree F3/4"125 psi£1,037.98
BLF140X6 125-210 1Lead Free Brass2610000 btuh1"FPTFemale Threaded210° F1"125 psi£1,449.71
ALF140X6 150-210 3/4Lead Free Brass-3/4"-Female Threaded210 Degree F3/4"150 Psi£647.20
ALF140X6 125-210 3/4Lead Free Brass-3/4"-Female Threaded210 Degree F3/4"125 psi£660.29
ALF140X8 150-210 3/4Lead Free Brass-3/4"-Female Threaded210 Degree F3/4"150 Psi£696.40
CLF140X8 125-210 3/4Lead Free Brass-3/4"-Female Threaded210 Degree F3/4"125 psi£721.90
BLF140X6 150-210 1Lead Free Bronze3085000 btuh1"NPTFemale Threaded210° F1"150 Psi£1,371.49
StyleModelRelief PressurePrice (inc. VAT)
ALF174A-90 290 Psi£2,757.94
RFQ
ALF174A-95 295 Psi£2,757.94
RFQ
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