Relief Valves
raptor logo

Strictly Necessary Cookies

Always Active

These cookies make our website work. They include logging personal details, like login/sign-up or account data, browser information, images & videos, and shopping cart journey.

In addition, we use optimization cookies to test new features and designs on our website. The information collected helps us improve our website and customers' experience.

Advertising

These cookies are used to understand the performance and relevancy of our adverts, to provide you with personalised adverts on other websites and social media, to track when you have arrived at our site from a recognised third-party affiliate website, and to track if you made a purchase based on the adverts we displayed to you.

recommendations

These cookies enable us to provide personalised product and content recommendations, to make the browsing experience more relevant to you.

Functional

These cookies are used to offer customer surveys and feedback, to improve search results, and to allow you to share content from our website on social media.

analysis

These cookies help us improve our website by collecting and reporting information on how you use it.

AQUATROL SAFETY VALVES Relief Valves

Adjustable relief and safety relief valves for controlling or limiting the fluid pressure / flow by keeping the pressure build-up in check on an interval basis; ideal for installation in high-pressure pipelines, supply lines and production lines. Available in brass, bronze and brass-bronze alloy body materials

Filter


WATTS -

415 Series Steam Relief Valves

WATTS 415M1-008A
StyleModelBody MaterialDischarge CapacityInlet ConnectionInlet SizeInlet TypeOutlet SizePrice (ex. VAT)
A415M1-008Brass450 pounds per hour At 15 psiMale Threaded3/4"Male Threaded3/4"€310.62
A415M1-010Brass450 pounds per hour At 15 psiMale Threaded3/4"Male Threaded3/4"€249.59
A415M1-015 1Bronze643 pounds per hour At 15 psiFemale Threaded1"Female Threaded1"€395.67
A415-015 1 1/4Bronze1230 pounds per hour At 15 psiMale Threaded1 1/4"Male Threaded1-1/2"€552.83
A415-015 1 1/2Bronze1860 pounds per hour At 15 psiMale Threaded1 1/2"Male Threaded2"€632.32
KUNKLE -

Series 200A Safety Relief Valves

KUNKLE 200A-F01-MG0050A
StyleModelPrice (ex. VAT)
A200A-F01-MG0050€523.77
RFQ
A200A-E02-MG€334.77
RFQ
A200A-F01-MG0060€523.77
RFQ
A200A-D01-MG€278.83
RFQ
A200A-E01-MG€334.77
RFQ
A200A-F01-MG€418.25
RFQ
A200A-G01-MG€500.07
RFQ
A200A-F01-MG0095€523.77
RFQ
A200A-F01-MG0085€523.77
RFQ
KUNKLE -

Series 6182 Safety Relief Valves

KUNKLE 6182FEV02AKMA
StyleModelPrice (ex. VAT)
A6182FEV02AKM€467.31
RFQ
A6182FEM02AKM0165€419.22
RFQ
A6182GFV61AKM€630.40
RFQ
A6182EDM01AKM€353.36
RFQ
A6182FEV01ANM€451.63
RFQ
A6182JHM01ALM€862.49
RFQ
A6182HGM01APM€620.99
RFQ
A6182EDV02AKM€410.86
RFQ
A6182JHV62AKM€990.03
RFQ
A6182DCE01AKM€352.31
RFQ
A6182JHM09AKM€862.49
RFQ
A6182HGE02AKM€642.95
RFQ
A6182GFM01AKM€520.63
RFQ
A6182DCM01AAM€315.72
RFQ
A6182GFM62AKM€582.31
RFQ
A6182EDV62AKM€412.95
RFQ
A6182EDE02AKM€370.09
RFQ
A6182GFM01APM€520.63
RFQ
A6182FEM01ANM€403.54
RFQ
A6182HGM09AKM€642.95
RFQ
A6182HGV01AKM€695.22
RFQ
A6182HGM01AAM€620.99
RFQ
A6182GFM01ALM€520.63
RFQ
A6182JHE01AKM€862.49
RFQ
A6182DCV01AKM€352.31
RFQ
See more
KUNKLE -

Series 6121 Safety Relief Valves

KUNKLE 6121FET01ALMA
StyleModelPrice (ex. VAT)
A6121FET01ALM€444.31
RFQ
A6121JHT02ALM€975.40
RFQ
A6121JHT01AAM€948.21
RFQ
A6121FET01AAM€444.31
RFQ
A6121DCT01AAM€346.04
RFQ
A6121JHT01ALM€948.21
RFQ
A6121JHT01APM€948.21
RFQ
A6121HGT01AAM€681.63
RFQ
A6121HGT01ALM€681.63
RFQ
A6121EDT01AAM€389.95
RFQ
KUNKLE -

Series 900 Safety Relief Valves

KUNKLE 929BEDM01AEEA
StyleModelPrice (ex. VAT)
A929BEDM01AEE€1,729.16
RFQ
A927LHGM06ABF€7,221.32
RFQ
A927BHGMSSABE€3,836.06
RFQ
A929LFEM01AEE€3,784.49
RFQ
A927LHGM06ABE€6,099.30
RFQ
A929LHGM01AEF€6,961.58
RFQ
A929BEDM01AEF€2,173.47
RFQ
A929BDDM31AEE€1,728.11
RFQ
A928BFEM28ADE€2,492.33
RFQ
A929LDEM01AEE€2,977.41
RFQ
A929LDEM01AEF€3,467.72
RFQ
A929GEDM01AEF€2,894.82
RFQ
KUNKLE -

Series 927 Safety Relief Valves

KUNKLE 927LDEM06ABEA
StyleModelPrice (ex. VAT)
A927LDEM06ABE€3,937.13
RFQ
A927MHGM06ABE€8,528.70
RFQ
A927BEDM06ABE€2,020.30
RFQ
A927BEDM06ABF€2,385.12
RFQ
A927BFEM06ABF€2,506.17
RFQ
A927BGFM06ABF€3,738.39
RFQ
A927BDEM06ABE€1,992.75
RFQ
A927LFEM06ABF€4,029.74
RFQ
A927BEDM07ABE€2,020.30
RFQ
A927LJHM06ABE€8,678.10
RFQ
A927NEDM06ABE€3,386.09
RFQ
A927BDCM07ABE€1,915.94
RFQ
A927BJHM06ABE0200€6,479.64
RFQ
A927NFEM06ABE€3,641.55
RFQ
A927BJHM07ABE€5,251.11
RFQ
A927BHGM06ABE0125€4,945.98
RFQ
A927LDDM06ABE€3,812.72
RFQ
A927BDDMSSABE€2,464.10
RFQ
A927GFEM06ABE€2,864.32
RFQ
A927BEFM06ABE€2,589.55
RFQ
A927BDCM06ABE€1,915.94
RFQ
A927BDEM07ABE€2,308.33
RFQ
A927BFEM06ABE€2,116.30
RFQ
A927BGFM06ABE€3,303.44
RFQ
A927LFEM06ABE€3,641.55
RFQ
See more
KUNKLE -

Series 337 Safety Relief Valves

KUNKLE 0337-H01ANM0012A
StyleModelPrice (ex. VAT)
A0337-H01ANM0012€577.61
RFQ
A0337-K03ANM€4,844.89
RFQ
A0337-K60ANM€1,002.98
RFQ
A0337-K60ANE€1,002.98
RFQ
A0337-K60AKE€1,002.98
RFQ
A0337-K07ANM€1,002.98
RFQ
A0337-K06ANM€1,002.98
RFQ
A0337-K06AKM€1,002.98
RFQ
A0337-K03AKM€4,844.89
RFQ
A0337-H79ANE€461.25
RFQ
A0337-K03AKE€4,844.89
RFQ
A0337-K01AKM€1,002.98
RFQ
A0337-J78ANE€774.17
RFQ
A0337-J60ANE€774.17
RFQ
A0337-J60AKM€774.17
RFQ
A0337-J06AKM€774.17
RFQ
A0337-H01ANE0007€577.61
RFQ
A0337-K79ANE€1,002.98
RFQ
A0337-J03AKE€3,189.83
RFQ
A0337-K82AKM€1,002.98
RFQ
A0337-H60AKM€461.25
RFQ
A0337-H03ANE€2,090.08
RFQ
A0337-H01AKM€461.25
RFQ
A0337-K78ANE€1,002.98
RFQ
A0337-K07AKM€1,002.98
RFQ
See more
KUNKLE -

Series 215V Safety relief Valves

KUNKLE 215V-J23ANEA
StyleModelPrice (ex. VAT)
A215V-J23ANE€3,994.54
RFQ
A215V-K01AQE€1,058.15
RFQ
A215V-K01AQE0015€1,325.10
RFQ
A215V-K01AQE0018€1,325.10
RFQ
A215V-K01AQE14.5€1,325.10
RFQ
A215V-H01AQE0015€607.05
RFQ
A215V-H01AQE0010€607.05
RFQ
A215V-K60AQE€1,073.53
RFQ
A215V-K07AQE€1,137.74
RFQ
A215V-J60AQE€835.67
RFQ
A215V-K07AQE0015€1,424.76
RFQ
A215V-J01AQE€821.20
RFQ
A215V-H60AQE€503.75
RFQ
A215V-H03AQE€2,090.08
RFQ
A215V-K82AQE€1,097.04
RFQ
A215V-K03AQE€4,844.89
RFQ
A215V-J03AQE€3,189.83
RFQ
A215V-K07AQE0018€1,424.76
RFQ
A215V-K07AQE0016€1,424.76
RFQ
A215V-K23ANE€4,844.89
RFQ
KUNKLE -

Series 330 Safety Relief Valves

KUNKLE 0330UA01-KC5200A
StyleModelPrice (ex. VAT)
A0330UA01-KC5200€1,250.35
RFQ
A330SUA01-KC€1,321.33
RFQ
A0330UC01-KC€998.46
RFQ
A0330UA01-KC€998.46
RFQ
A330SUG01-KC€1,654.67
RFQ
A0330UA01-KC3800€1,250.35
RFQ
KUNKLE -

Series 2 Safety Relief Valves

KUNKLE 0002-C01-NC0005A
StyleModelPrice (ex. VAT)
A0002-C01-NC0005€400.93
RFQ
A0002-C02-LC€337.34
RFQ
A0002-C01-NC0008€400.93
RFQ
A0002-E01-NC€398.84
RFQ
A0002-D03-NC€516.41
RFQ
A0002-D03-LC€516.41
RFQ
A0002-D03-KC€516.41
RFQ
A0002-D02-NC€337.34
RFQ
A0002-D02-LC€337.34
RFQ
A0002-D01-PC€320.16
RFQ
A0002-D01-NC€320.16
RFQ
A0002-D01-KC€320.16
RFQ
A0002-C03-PC€516.41
RFQ
A0002-C03-NC€516.41
RFQ
A0002-C03-KC€516.41
RFQ
A0002-C02-PC€337.34
RFQ
A0002-C02-KC€337.34
RFQ
A0002-E01-PC€398.84
RFQ
A0002-D03-PC€516.41
RFQ
A0002-C01-NC€320.16
RFQ
A0002-C02-NC€337.34
RFQ
A0002-C03-LC€516.41
RFQ
A0002-D01-LC€320.16
RFQ
A0002-D02-KC€337.34
RFQ
A0002-D02-PC€337.34
RFQ
See more
KUNKLE -

Series 1 Safety Relief Valves

KUNKLE 0001-D01-LC0015A
StyleModelPrice (ex. VAT)
A0001-D01-LC0015€334.11
RFQ
A0001-C01-KC0150€334.11
RFQ
A0001-D03-KC€461.25
RFQ
A0001-D03-LC€461.25
RFQ
A0001-D03-NC€461.25
RFQ
A0001-D03-PC€461.25
RFQ
A0001-E01-KC€331.01
RFQ
A0001-E01-LC€331.01
RFQ
A0001-E02-KC€348.20
RFQ
A0001-E02-PC€348.20
RFQ
A0001-C01-LC€266.80
RFQ
A0001-D02-NC€282.17
RFQ
A0001-E01-NC€331.01
RFQ
A0001-E01-PC€331.01
RFQ
A0001-E02-LC€348.20
RFQ
A0001-E02-NC€348.20
RFQ
A001A-E02-KC€348.20
RFQ
A0001-C01-PC0005€334.11
RFQ
A0001-D01-LC0045€334.11
RFQ
A0001-D01-LC0070€334.11
RFQ
A0001-D02-PC€282.17
RFQ
A0001-D02-LC€282.17
RFQ
A0001-E01-KC0100€414.52
RFQ
A0001-C01-PC€266.80
RFQ
A0001-D02-KC0055€353.36
RFQ
See more
KUNKLE -

Series 40R Safety Relief Valves

KUNKLE 040R-C01-PE0140A
StyleModelPrice (ex. VAT)
A040R-C01-PE0140€814.31
RFQ
A040R-D01-PE0110€814.31
RFQ
A040R-D01-PE0075€814.31
RFQ
A040R-D01-PE0065€814.31
RFQ
A040R-D01-PE0055€814.31
RFQ
A040R-D01-PE€650.27
RFQ
A040R-D01-PE0025€814.31
RFQ
A040R-D01-PE0070€814.31
RFQ
A040R-D01-PE0005€814.31
RFQ
A040R-D01-PE0275€814.31
RFQ
A040R-D01-PE0020€814.31
RFQ
A040R-C01-PE0075€814.31
RFQ
A040R-C01-PE0005€814.31
RFQ
A040R-C01-PE0015€814.31
RFQ
A040R-D01-PE0095€814.31
RFQ
A040R-C01-PE€650.27
RFQ
A040R-D01-PE0225€814.31
RFQ
A040R-D01-PE0050€814.31
RFQ
A040R-D01-PE0030€814.31
RFQ
A040R-D01-PE0250€814.31
RFQ
A040R-D01-PE0015€814.31
RFQ
A040R-D01-PE0010€814.31
RFQ
A040R-D01-PE0300€814.31
RFQ
KUNKLE -

Series 20MP Safety Relief Valves

KUNKLE 20MP-K03-MGA
StyleModelPrice (ex. VAT)
A20MP-K03-MG€5,482.36
RFQ
A20MP-J01-MG€2,406.83
RFQ
A20MP-J03-MG€3,913.70
RFQ
A20MP-K04-MG€6,722.18
RFQ
KUNKLE -

Series 6933 Safety Relief Valves

KUNKLE 6933HHM01AGMA
StyleModelPrice (ex. VAT)
A6933HHM01AGM€868.76
RFQ
A6933JJM01AGM€1,240.94
RFQ
A6933FEM01AGM€427.59
RFQ
A6933JHM01AGM€909.53
RFQ
A6933DDM01AGM€340.81
RFQ
A6933FFM01AGM€484.04
RFQ
A6933JHM03AGM€909.53
RFQ
A6933GFM01AGM€548.86
RFQ
A6933EEM01AGM€397.27
RFQ
A6933DCM01AGM€334.54
RFQ
A6933EDM01AGM€374.27
RFQ
A6933GGM01AGM€582.31
RFQ
KUNKLE -

Series 19 Safety Relief Valves

KUNKLE 0019-F12-MGA
StyleModelPrice (ex. VAT)
A0019-F12-MG€423.26
RFQ
A0019-F10-MG€423.26
RFQ
A0019-E11-MG€327.26
RFQ
A0019-C01-MG€283.01
RFQ
A0019-C04-MG€907.46
RFQ
A0019-D01-MG€283.01
RFQ
A0019-D03-MG€674.55
RFQ
A0019-F01-MG€423.26
RFQ
A0019-F02-MG€423.26
RFQ
A0019-G01-MG€505.91
RFQ
A0019-G03-MG€1,382.49
RFQ
A0019-H02-MG€762.20
RFQ
A0019-K11-MG€2,058.70
RFQ
A0019-K10-MG€2,058.70
RFQ
A0019-H11-MG€762.20
RFQ
A0019-F11-MG€410.74
RFQ
A0019-G10-MG€505.91
RFQ
A0019-D10-MG€283.01
RFQ
A0019-E10-MG€327.26
RFQ
A0019-C12-MG€283.01
RFQ
A0019-K01-MG€2,058.70
RFQ
A0019-G12-MG€505.91
RFQ
A0019-K03-MG€4,000.53
RFQ
A0019-J11-MG€1,209.67
RFQ
A0019-J03-MG€3,238.77
RFQ
See more
KUNKLE -

Series 30 Safety Relief Valves

KUNKLE 0030-A01-KM0650A
StyleModelPrice (ex. VAT)
A0030-A01-KM0650€198.20
RFQ
A0030-A01-KM1800€198.20
RFQ
A0030-A01-KM0700€198.20
RFQ
A0030-A01-KM0200€198.20
RFQ
A0030-A01-KM0400€198.20
RFQ
A0030-A01-KM0500€198.20
RFQ
A0030-A01-KM0600€198.20
RFQ
A0030-A01-KM0800€198.20
RFQ
A0030-A01-KM1300€198.20
RFQ
A0030-A01-KM1400€198.20
RFQ
A0030-A01-KM€158.27
RFQ
A0030-A60-KM€170.93
RFQ
KUNKLE -

Series 6934 Safety Relief Valves

KUNKLE 6934HGT01AGMA
StyleModelPrice (ex. VAT)
A6934HGT01AGM€827.99
RFQ
A6934HHT01AGM€1,097.71
RFQ
A6934FET01AGM€539.45
RFQ
A6934GFT01AGM€692.08
RFQ
A6934JHT01AGM€1,152.07
RFQ
A6934EDT01AGM€469.40
RFQ
KUNKLE -

Series 6252 Safety Relief Valves

KUNKLE 6252FKH01-LSA
StyleModelPrice (ex. VAT)
A6252FKH01-LS€2,105.45
RFQ
A6252FKJ01-NS€2,346.72
RFQ
A6252FKH01-KS€2,105.45
RFQ
A6252FKH01-NS€2,105.45
RFQ
A6252FKH01-PS€2,105.45
RFQ
A6252FKH02-AS€2,198.95
RFQ
A6252FKJ01-AS€2,346.72
RFQ
A6252FKJ01-KS€2,346.72
RFQ
A6252FKK01-AS€2,393.47
RFQ
A6252FJJ02-AS€2,224.83
RFQ
A6252KNM01-KS€5,946.52
RFQ
A6252KNM01-PS€5,946.52
RFQ
A6252FLM01-PS€3,225.80
RFQ
A6252KPM02-AS€7,865.81
RFQ
A6252FMK01-KS€3,569.75
RFQ
A6252KQP01-PS€11,994.06
RFQ
A6252AJG01-KS€1,853.33
RFQ
A6252FKH01-AS€2,105.45
RFQ
A6252FJJ01-PS€2,130.50
RFQ
A6252AJG01-PS€1,853.33
RFQ
A6252FJG01-KS€1,853.33
RFQ
A6252AMK01-KS€3,569.75
RFQ
A6252AMK01-LS€3,569.75
RFQ
A6252AMK01-PS€3,569.75
RFQ
A6252AMK02-AS€3,665.76
RFQ
See more
KUNKLE -

Series 265P Safety Relief Valves

KUNKLE 265P-C02-PFA
StyleModelPrice (ex. VAT)
A265P-C02-PF€1,723.58
RFQ
A265P-E01-PF€1,723.58
RFQ
A265P-E01-LF€1,723.58
RFQ
A265P-D01-KF€1,723.58
RFQ
A265P-C01-LF€1,723.58
RFQ
A265P-C01-KF€1,723.58
RFQ
A265P-D02-LF€1,723.58
RFQ
A265P-C02-KF€1,723.58
RFQ
A265P-C01-PF€1,723.58
RFQ
A265P-C03-LF€1,723.58
RFQ
A265P-E03-LF€1,723.58
RFQ
A265P-D03-KF€2,034.25
RFQ
A265P-C02-LF€1,723.58
RFQ
A265P-E03-PF€1,723.58
RFQ
A265P-D04-LF€1,723.58
RFQ
A265P-D01-MF€1,723.58
RFQ
A265P-D01-LF€1,723.58
RFQ
A265P-E01-MF€1,723.58
RFQ
KUNKLE -

Series 363 Safety Relief Valves

KUNKLE 0363-C01-KH0980A
StyleModelPrice (ex. VAT)
A0363-C01-KH0980€1,592.38
RFQ
A0363-C01-KH0715€1,592.38
RFQ
A0363-D02-NH€1,271.59
RFQ
A0363-C01-NH€1,271.59
RFQ
A363C-D01-NH€1,219.14
RFQ
A363P-D01-KH€1,510.35
RFQ
A0363-C01-KH€1,271.59
RFQ
A0363-D01-KH€1,271.59
RFQ
A0363-D01-NH€1,271.59
RFQ
A363C-C01-KH€1,219.14
RFQ
A363C-C01-NH€1,219.14
RFQ
A363C-D01-KH€1,219.14
RFQ
A363P-C01-KH€1,510.35
RFQ
A363P-C01-NH€1,510.35
RFQ
A363P-D01-NH€1,510.35
RFQ
A0363-D02-KH€1,271.59
RFQ
KUNKLE -

Series 300 Safety Relief Valves

KUNKLE 300LLJ01-KS0190A
StyleModelPrice (ex. VAT)
A300LLJ01-KS0190€11,774.79
RFQ
A300LHG01-AS€4,086.51
RFQ
A300LJG01-LF€6,871.52
RFQ
A300LJG01-KF€6,871.52
RFQ
A300LJG01-AS€5,223.56
RFQ
A300LJG01-AF€6,871.52
RFQ
A300LHG01-LF€5,312.88
RFQ
A300LHG01-KS€4,086.51
RFQ
A300LHG01-AF€5,312.88
RFQ
A300LKH01-AS€7,347.38
RFQ
A300LGF01-LF€4,838.70
RFQ
A300LGF01-KS€3,675.77
RFQ
A300LGF01-KF€4,838.70
RFQ
A300LGF01-AF€4,838.70
RFQ
A300LKH01-AS0250€9,200.92
RFQ
A300LKH01-AS0135€9,200.92
RFQ
A300LJG01-LS€5,223.56
RFQ
A300LKH01-KF€9,550.50
RFQ
A300LQP01-AF0125€38,059.24
RFQ
A300LMK01-LF€15,202.33
RFQ
A300LLJ01-AS0130€11,774.79
RFQ
A300LHG01-AS0200€5,117.43
RFQ
A300LLJ01-AS0250€11,774.79
RFQ
A300LNM01-KS€13,647.87
RFQ
A300LNM01-AS€13,647.87
RFQ
See more
12...910

Features

  • They are easily adjusted in the field by removing the hex cap, making them ideal for pressure relief, liquid relief, bypass and over-protection.
  • These units can be easily cleaned and maintained by simply removing the bonnet.
  • Selected models have a bronze disc lapped into position to minimise leakage.
  • They are available in brass, bronze and brass-bronze alloy body materials.

Working Mechanism

  • Some pressure escapes through the water pipes that connect to the water heater.
  • If it cannot, the pressure-relief valve is activated.
  • The valve reduces the pressure to safe levels by releasing some of the hot water and air.

Standards and Approvals

  • ISO 9001:2015
  • CE
  • CRN
  • ASME

Frequently Asked Questions

How do you adjust a water pressure relief valve?

Many valves are equipped with a nut, screw or knob that allows you to adjust them. Turning the screw or knob clockwise raises the water pressure while turning it counter-clockwise lowers it.

Which series of valves are compatible for use with boilers?

Aquatrol 560/570 Series valves are high-capacity safety valves that are used for boilers, piping lines and vessel protection. They are intended for heavy-duty industrial applications.

Do these relief valves come calibrated?

Aquatrol 69 Series liquid relief valves are calibrated based on a range of flow rates (GPM) versus seat size and set pressure.

We are here to help!

Looking for a part not listed here?

Chat with us now

Popular Search Queries

Explore More