Temperature And Pressure Relief Valves

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WATTS -

LL40XL Series Temperature and Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeOutlet SizeRelief Valve PressureBody MaterialMax. Temp.Max. Working PressureInlet TypePrice (inc. VAT)
ALLL40XLM15-150210 3/4-3/4"3/4"150 psiBronze210°F-Male Threaded£591.95
ALL40XL-75210 3/4-3/4"3/4"75 psiBronze210°F-Male Threaded£622.67
ALL40XLM15-150210 3/4-3/4"3/4"150 psiBronze210°F-Male Threaded£565.98
ALLL40XLM15-125210 3/4-3/4"3/4"125 psiBronze210°F-Male Threaded£744.48
BLL40XLM15-125210 11808000 btuH1"1"125 psiBronze210°F-Male Threaded£1,101.25
BLL40XLM15-150210 12134000 btuH1"1"150 psiBronze210°F113 psiMale Threaded£1,028.83
WATTS -

SL100XL Series Temperature and Pressure Relief Valves

StyleModelRelief Valve PressureBody MaterialMax. Temp.Inlet SizeOutlet SizeInlet TypeOutlet TypePressure RangePrice (inc. VAT)
A3/4 SL100XL 125/210 3/4125 psiBronze210°F3/4"3/4"Male ThreadedFemale Threaded75 psi to 150 psi£64.93
BSL100XL-Z5-150210 3/4150 psiBronze210°F3/4"3/4"Male ThreadedFemale Threaded75 psi to 150 psi£63.38
WATTS -

340 Series Temperature and Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeOutlet SizeRelief Valve PressureThermostat Probe LengthBody MaterialMax. Working PressureMax. Temp.Price (inc. VAT)
A340-100/210 1 1/24426000 btuH1 1/2"1 1/2"100 psi3"Bronze--£2,989.70
B342-125210 25403000 btuH2"2"125 psi-Bronze--£2,796.04
A340-125/210 1 1/25403000 btuH1 1/2"1 1/2"125 psi3"Bronze--£2,792.90
A340X-8-125210 1 1/25403000 btuH1 1/2"1 1/2"125 psi8"Bronze--£2,967.65
B342X-8-150210 26379000 btuH2"2"150 psi8"Bronze--£3,233.75
A340X-8-150210 1 1/26379000 btuH1 1/2"1 1/2"150 psi8"Bronze113 psi210°F£2,967.65
A340-150210 1 1/26379000 btuH1 1/2"1 1/2"150 psi3"Bronze113 psi210°F£2,792.90
APOLLO VALVES -

RPLF 4AN Series Reduced Pressure Principle Backflow Preventers

StyleModelMPNPrice (inc. VAT)
A4ANLF20C0114ANLF20C011£18,461.23
A4ANLF20C0124ANLF20C012£18,461.23
B4ANLF20C024ANLF20C02£10,322.17
C4ANLF20C034ANLF20C03£10,115.72
B4ANLF20C044ANLF20C04£10,322.17
A4ANLF20C064ANLF20C06£19,065.15
B4ANLF20C074ANLF20C07£10,115.72
B4ANLF20C084ANLF20C08£10,115.72
C4ANLF20C094ANLF20C09£10,285.33
A4ANLF20E0104ANLF20E010£37,310.72
A4ANLF20E0114ANLF20E011£36,513.65
A4ANLF20E0124ANLF20E012£36,513.65
B4ANLF20E024ANLF20E02£19,818.57
C4ANLF20E034ANLF20E03£19,818.57
B4ANLF20E044ANLF20E04£19,818.57
A4ANLF20E064ANLF20E06£37,310.72
A4ANLF20E074ANLF20E07£37,310.72
B4ANLF20E084ANLF20E08£37,310.72
C4ANLF20E094ANLF20E09£20,507.26
A4ANLF20G0104ANLF20G010£47,619.70
A4ANLF20G0114ANLF20G011£46,670.75
A4ANLF20G0124ANLF20G012£46,670.75
B4ANLF20G024ANLF20G02£26,264.88
C4ANLF20G034ANLF20G03£26,264.88
B4ANLF20G044ANLF20G04£27,374.39
APOLLO VALVES -

18C-400 Series Water Heater Temperature And Pressure Relief Valves

StyleModelBody HeightInlet SizeOutlet SizeShank LengthFactory Set PressureBody MaterialMax. Temp.Thermostat LengthPrice (inc. VAT)
A18C40237--------£55.91
A18C40236--------£51.60
A18C40230--------£55.91
B18C401296 1/4"1/2"1/2"Standard125 psiBronze210°F3"£48.34
B18C402296 1/8"3/4"3/4"Standard125 psiBronze210°F3"£49.31
B18C402X397 1/2"3/4"3/4"Extended125 psiBronze210°F3"£74.55
StyleModelMPNPrice (inc. VAT)
A40LF000FPV140LF000FPV1£80.20
A40LF000FPV240LF000FPV2£227.24
A40LF000FPV2F40LF000FPV2F£227.24
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 CapacityMax. Working PressureInlet SizeOutlet SizeRelief Valve PressureBody MaterialMax. Temp.Inlet TypePrice (inc. VAT)
A740-045 11750000 btuH-1"1 1/4"45 psiIron250°FFemale Threaded£909.10
A740-050 11899000 btuH38 psi1"1 1/4"50 psiIron250°FFemale Threaded£363.86
A740-060 12200000 btuH45 psi1"1 1/4"60 psiIron250°FFemale Threaded£633.01
A740-030 25250000 btuH20 psi2"2 1/2"30 psiIron250°FFemale Threaded£1,393.15
RFQ
A740-060 28883000 btuH45 psi2"2 1/2"60 psiIron250°FFemale Threaded£2,447.90
RFQ
StyleModelRelief Valve PressureBody MaterialMax. Temp.Inlet SizeOutlet SizeInlet TypeOutlet TypePressure RangePrice (inc. VAT)
ALF1L-2 125-210 1/2125 psiCopper Silicon Alloy210°F1/2"1/2"Male ThreadedFemale Threaded75 psi to 150 psi£190.40
ALF1L-2 150-210 1/2150 psiCopper Silicon Alloy210°F1/2"1/2"Male ThreadedFemale Threaded75 psi to 150 psi£73.58
WATTS -

40L Series Automatic Re Seating Temperature and Pressure Relief Valves

StyleModelDischarge CapacityInlet SizeOutlet SizeRelief Valve PressureThermostat Probe LengthBody MaterialMax. Temp.Max. Working PressurePrice (inc. VAT)
A40XL-8-085210 3/4-3/4"3/4"85 psi-Bronze210°F-£595.11
A40XL-125210 3/4-3/4"3/4"125 psi-Bronze210°F-£462.08
A40XL-8-125210 3/4-3/4"3/4"125 psi-Bronze210°F-£542.35
A40XL-075210 3/4-3/4"3/4"75 psi-Bronze210°F-£495.94
A40XL-8-100210 3/4-3/4"3/4"100 psi-Bronze210°F-£314.10
A40XL-Z2-150210 3/4-3/4"3/4"150 psi-Bronze--£617.77
A40XL-8-075210 3/4-3/4"3/4"75 psi-Bronze210°F-£542.35
A40XL-8-150210 3/4-3/4"3/4"150 psi-Bronze210°F-£408.10
B40XL-7-75210 11155000 btuH1"1"75 psi8"Bronze210°F150 psi£820.24
C40L-075210 11155000 btuH1"1"75 psi3"Bronze210°F150 psi£820.86
B40XL-075210 11155000 btuH1"1"75 psi5"Bronze210°F150 psi£782.44
B40XL-100210 11481000 btuH1"1"100 psi5"Bronze210°F150 psi£743.87
B40XL-150210 12135000 btuH1"1"150 psi5"Bronze210°F150 psi£364.55
WATTS -

LF100XL Series Temperature and Pressure Relief Valves

StyleModelBody MaterialBody HeightThermostat LengthMax. Working PressureOutlet TypeShank LengthInlet TypeRelief Valve PressurePrice (inc. VAT)
ALFSL100XL-150/210 3/4Bronze---Female Threaded1 1/4"Male Threaded150 psi£83.44
B3/4 LF 100XL-4Bronze3 1/2"4"-FNPTStandardMNPT-£29.57
C3/4 LF LL100XLBronze4 3/4"2 1/2"-FNPTExtendedMNPT-£33.22
D3/4 LF LLL100XLBronze5 1/4"3"-FNPTExtendedMNPT-£59.55
ELF100XL-8 175-210 3/4Copper Alloy---Female Threaded1 3/16"Male Threaded175 psi£81.09
ELF100XL-8 100-210 3/4Copper Alloy---Female Threaded1 3/16"Male Threaded100 psi£85.03
FLF100XL4-Z11 150-180Copper Alloy--150 psiFemale Threaded1 3/16"Male Threaded150 psi£78.72
GLF100XL 125-210 3/4Copper Silicon Alloy---Female Threaded1 1/8"Male Threaded125 psi£44.49
ELF100XL-8 125-210 3/4Copper Silicon Alloy---Female Threaded1 1/8"Male Threaded125 psi£81.09
H3/4 LF L100XL 150-210Copper Silicon Alloy8 1/4"3"-NPT1.062"--£57.17
GLF100XL 175-210 3/4Copper Silicon Alloy---Female Threaded1 1/8"Male Threaded175 psi£39.96
ILF100XL-Z11 100-180Copper Silicon Alloy--75 psiFemale Threaded1 1/8"Male Threaded100 psi£78.72
JLFL100XL3-150210Copper Silicon Alloy--113 psiFemale Threaded1 1/16"Male Threaded150 psi£52.33
GLF100XL 100-210 3/4Copper Silicon Alloy---Female Threaded1 1/8"Male Threaded100 psi£77.93
FLF100XL-150210Copper Silicon Alloy--113 psiFemale Threaded1 1/8"Male Threaded150 psi£33.39
KLF100XL8 150-210 3/4Copper Silicon Alloy11.172"8"-NPT1 1/8"--£52.89
JLFL100XL 100-210Lead Free Brass---Female Threaded-Male Threaded100 psi£80.27
WATTS -

140 Series Automatic Re Seating Temperature and Pressure Relief Valves

StyleModelInlet SizeOutlet SizeRelief Valve PressureBody MaterialMax. Temp.Discharge CapacityInlet TypeOutlet TypePrice (inc. VAT)
A140X9-100210 11"1"100 psiBronze210°F-Female ThreadedFemale Threaded£924.69
A140X9-75210 11"1"75 psiBronze210°F-Female ThreadedFemale Threaded£1,138.44
B140S3-075210 11"1"75 psiBronze210°F1670000 btuHFemale ThreadedFemale Threaded£750.17
A140X8-75210 3/43/4"3/4"75 psiBronze210°F-Female ThreadedFemale Threaded£554.37
A140S3-075210 3/43/4"3/4"75 psiBronze210°F-Female ThreadedFemale Threaded£495.94
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 Valve PressureBody MaterialMax. Temp.Inlet SizeOutlet SizeInlet TypeOutlet TypePressure RangePrice (inc. VAT)
AN241X 75-210 1 1/475 psiBronze210°F1 1/4"1 1/4"Female ThreadedFemale Threaded75 psi to 150 psi£1,685.00
AN241X8 100-210 1 1/4150 psiBronze210°F1 1/4"1 1/4"Female ThreadedFemale Threaded75 psi to 150 psi£1,459.54
StyleModelBody MaterialMax. Working PressurePressure RangeRelief Valve PressureMax. Temp.Inlet SizeOutlet SizeInlet TypePrice (inc. VAT)
ALF53L-Z2-30 1/2Brass-75 psi to 125 psi30 psi-1/2"1/2"Male Threaded£155.88
ALF53L-100 1/2Copper Silicon Alloy-75 psi to 150 psi100 psi210°F1/2"1/2"Male Threaded£144.86
ALF53L-150 1/2Copper Silicon Alloy113 psi75 psi to 150 psi150 psi210°F1/2"1/2"Male Threaded£144.86
ALF53L-175 1/2Copper Silicon Alloy-75 psi to 150 psi175 psi210°F1/2"1/2"Male Threaded£144.86
ALF53L-75 1/2Copper Silicon Alloy-75 psi to 150 psi75 psi210°F1/2"1/2"Male Threaded£144.86
ALF53L-125 1/2Copper Silicon Alloy94 psi75 psi to 150 psi125 psi210°F1/2"1/2"Male Threaded£144.86
WATTS -

53L Series Pressure Only Relief Valves

StyleModelMax. Working PressureOutlet TypeRelief Valve PressureBody MaterialMax. Temp.Factory Set PressureDischarge CapacityInlet SizePrice (inc. VAT)
A53L-Z2-030 1/2-Female Threaded30 psiBronze---1/2"£113.75
A53L-075 1/2-Female Threaded75 psiBronze210°F--1/2"£113.75
B53L-150 1/2-NPT-Bronze-150 psi-1/2"£142.78
A53L-175 1/2-Female Threaded175 psiBronze210°F--1/2"£113.75
A53L-100 1/275 psiFemale Threaded100 psiBronze210°F-15000 btuH1/2"£113.75
C53L-FP-175 1/2131 psiFemale Threaded175 psiBronze210°F--1/2"£111.00
StyleModelRelief Valve PressureBody MaterialMax. Temp.Inlet SizeOutlet SizeInlet TypeOutlet TypePressure RangePrice (inc. VAT)
A140S3-100210 3/4100 psiBronze210°F3/4"3/4"Female ThreadedFemale Threaded75 psi to 150 psi£495.94
A140S3-125210 3/4125 psiBronze210°F3/4"3/4"Female ThreadedFemale Threaded75 psi to 150 psi£462.08
A140S3-150210 3/4150 psiBronze210°F3/4"3/4"Female ThreadedFemale Threaded75 psi to 150 psi£462.08
WATTS -

53 Series Pressure Only Relief Valves

StyleModelInlet SizeOutlet SizeRelief Valve PressureBody MaterialInlet TypeOutlet TypePressure RangeLeadPrice (inc. VAT)
A53-035 1/21/2"1/2"35 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£120.03
A53-100 1/21/2"1/2"100 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£128.32
A53-075 1/21/2"1/2"75 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£120.03
B53-125 1/21/2"1/2"125 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£116.91
C53-125 3/43/4"3/4"125 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£121.24
C53-075 3/43/4"3/4"75 psiBronzeMale ThreadedFemale Threaded75 psi to 175 psiPresent£125.15
WATTS -

1XL Series Temperature and Pressure Relief Valves

StyleModelThermostat Probe LengthBody MaterialInlet SizeInlet TypeOutlet TypePressure RangeInlet Thread TypeShank LengthPrice (inc. VAT)
A1XL 75-210 1/24"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"£59.83
A1XL-150210 1/24"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"£89.62
B1XL-8-1502108"Bronze1/2"Male ThreadedFemale Threaded75 psi to 150 psiNPT7/8"£56.67
ZURN -

Temperature and Pressure Relief Valves

StyleModelMPNPrice (inc. VAT)
ATP220-5C-150CTP220-5C-150C£280.50
BTP3000-5C-125CTP3000-5C-125C-
RFQ
WATTS -

Automatic Temperature Gas Shutoff Valves, 150 psi

StyleModelBody HeightThermostat LengthShank LengthFactory Set PressureMax. Temp.Inlet SizeOutlet SizeInlet TypePrice (inc. VAT)
ALF210-5-M210 1/4"8"7/8"150 psi210°F1/2"1/2"FNPT£528.73
BLFL210-5-M211.938"7.812"1 7/8"150 psi210°F1/2"1/2"FNPT£539.41
CLFLLL210-5-M212.812"8.812"2 7/8"150 psi210°F1/2"1/2"FNPT£702.07
SHARKBITE -

Temperature & Pressure Relief Valves, 150 psi

StyleModelBody HeightThermostat LengthShank LengthFactory Set PressureBody MaterialMax. Temp.Inlet SizeOutlet SizePrice (inc. VAT)
A19783-01506 1/2"1 7/8"2.312"150 psiBronze210°F3/4"3/4"£25.41
B16372-015011 3/8"7 7/8"1.187"150 psiBronze210°F3/4"3/4"£57.13
CASH ACME -

Temperature & Pressure Relief Valve, 150 psi

StyleModelBody HeightThermostat LengthInlet SizeOutlet SizeInlet TypeBody WidthFactory Set PressureBody MaterialPrice (inc. VAT)
A18821-01504.312"2 1/8"3/4"3/4"MNPT1.469"150 psiBronze£27.31
BFVX-3C5.562"2 7/8"3/4"3/4"FNPT2 1/2"150 psiBronze£149.21
CFVMX-3C6"3.062"1"1"MNPT2 1/2"150 psiBronze£165.19
DFVMX-5C6"4 3/4"3/4"3/4"MNPT2 1/2"150 psiBronze£83.71
BFVMX-5C6"4 3/4"1"1"MNPT2 1/2"150 psiBronze£143.98
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