KUNKLE Relief Valves

ASME-compliant aluminium, bronze and stainless-steel relief valves used to control and limit the pressure in a system by releasing excess pressure. Available in MNPT and FNPT connections and in different sizes

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Kunkle aluminium, bronze and stainless-steel relief valves are used to control and limit the pressure in a system by releasing excess pressure. These relief valves are factory preset, sealed to prevent tampering and ideal for harsh industrial environments.
WATTS -

Bronze Steam Safety Relief Valves

WATTS 0006275A
WATTS 0006276B
StyleModelComplianceInlet SizeOutlet SizeOverall HeightOverall LengthSeat MaterialPrice (ex. VAT)
A0006275NB, ASME3/4"3/4"2.75"2.125"Bronze€136.40
B0006276NB, ASME and HV3/4"3/4"2 13/16"2.375"Metal€196.99
B0006277NB, ASME and HV1"1"3.125"2.375"Metal€221.08
APOLLO VALVES -

13-500 Series Low Pressure Steam Safety Valves

APOLLO VALVES 13511B15A
StyleModelPrice (ex. VAT)
A13511B15€47.17
A13511P05€160.08
A13512B15€47.17
A13512B10€76.00
A13512B05€100.59
A13511S15€103.91
A13511S08€128.56
A13511P10€135.41
A13511P15€135.41
A13511B12€100.59
A13511A2€76.00
A13511B6€99.25
A13511B10€76.00
A13511B06€100.59
A13511B07€100.59
A13511B08€100.63
A13511B05€100.63
A13511A3€99.25
A13512B09€99.46
APOLLO VALVES -

10-512 Series Steam Safety Valves

APOLLO VALVES 10512B55A
StyleModelPrice (ex. VAT)
A10512B55€162.77
A10512B40€162.77
A10512B17€162.77
A10512B28Q€193.81
A10512M2CEQ€477.52
A10512M2CE€423.42
A10512B40V€163.30
A10512B50€162.77
APOLLO VALVES -

10-600 Series Hot Water Safety Relief Valves

APOLLO VALVES 1060410A
StyleModelBtuHFactory Set PressureInlet SizeOutlet SizeOverall HeightOverall LengthPrice (ex. VAT)
A10604101,209,00050 psi3/4"3/4"5.25"3.187"€157.43
A10605051,339,00030 psi1"1"6 11/16"4"€177.53
A10604151,686,00075 psi3/4"3/4"5.25"3.187"€157.43
A10605101,956,00050 psi1"1"6 11/16"4"€178.22
A10604202,162,000100 psi3/4"3/4"5.25"3.187"€157.43
A10606052,316,00030 psi1.25"1.25"8.375"5 1/16"€403.06
A10604252,639,000125 psi3/4"3/4"5.25"3.187"€157.43
A10605152,728,00075 psi1"1"6 11/16"4"€195.88
A10604343,116,000150 psi3/4"3/4"5.25"3.187"€157.74
A10607053,151,00030 psi1.5"1.5"10.75"5.875"€556.24
A10606103,384,00050 psi1.25"1.25"8.375"5 1/16"€431.94
A10605203,500,000100 psi1"1"6 11/16"4"€182.14
A10605254,272,000125 psi1"1"6 11/16"4"€182.14
A10607104,604,00050 psi1.5"1.5"10.75"5.875"€555.44
A10606154,720,00075 psi1.25"1.25"8.375"5 1/16"€444.11
A10605345,044,000150 psi1"1"6 11/16"4"€183.80
A10608055,193,00030 psi2"2"14"7.187"€908.99
A10606206,055,000100 psi1.25"1.25"8.375"5 1/16"€412.37
A10607156,421,00075 psi1.5"1.5"10.75"5.875"€555.44
A10606257,390,000125 psi1.25"1.25"8.375"5 1/16"€412.37
A10608107,589,00050 psi2"2"14"7.187"€822.14
A10607208,238,000100 psi1.5"1.5"10.75"5.875"€555.44
A10606348,725,000150 psi1.25"1.25"8.375"5 1/16"€415.17
A106072510,054,000125 psi1.5"1.5"10.75"5.875"€564.27
A106081510,583,00075 psi2"2"14"7.187"€846.94
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APOLLO VALVES -

10-600 Series Safety Relief Valves

APOLLO VALVES 1061523A
StyleModelPrice (ex. VAT)
A1061523€479.79
A1061805Q€1,531.11
A1061743€1,110.27
A1061736€1,054.81
A1061744€1,110.27
A10617B8€1,110.27
A10617C8€1,110.27
A10617E6€1,110.27
RFQ
A10617J1€1,110.27
A10617K5€1,110.27
A10617E7€1,110.27
RFQ
A1061801€1,625.82
A10617L7€1,110.27
A10617L9€1,110.27
A1061809€1,625.82
A1061806€1,625.82
A1061807€1,625.82
A1061735€1,110.27
A1061734€854.11
A1061805€825.59
A1061802€1,625.82
A1061804€1,625.82
A1061803€1,625.82
A1061746€1,110.27
A1061734Q€1,163.36
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APOLLO VALVES -

10-620 Series Hot Water Safety Relief Valves

APOLLO VALVES 10624100A
StyleModelPrice (ex. VAT)
A10624100€211.34
A10624150Q€271.74
A10624125€211.34
A1062430€132.76
A1062440€217.64
A10624150€211.34
A1062460€217.64
A1062450€217.64
A1062445€217.67
A1062470€217.64
A1062485€217.67
A1062475€217.64
A1062490€217.64
A1062480€217.64
APOLLO VALVES -

10-630 Series Safety Relief Valves

APOLLO VALVES 10634125A
StyleModelPrice (ex. VAT)
A10634125€211.34
A10634150€190.58
A10634100€211.34
A1063430€132.76
A1063440€217.64
A1063450€217.64
A1063465€217.64
A1063475€217.64
A1063490€217.64
A1063480€217.64
APOLLO VALVES -

119 Series Safety Valves

APOLLO VALVES 119LKCAMAA0025A
StyleModelPrice (ex. VAT)
A119LKCAMAA0025€6,437.45
A119QPDAMAA0035€25,643.79
A119MKAAMAA0190€7,520.63
A119MKAAMAA0200€7,520.63
A119MKAAMAA0185€7,520.63
A119PMDPMAA0005€16,584.98
A119PMDLMAA0250€16,584.98
A119QPDAMAA0023€25,643.79
A119QPDAMAA0025€25,643.79
A119QPDAMAA0030€25,643.79
A119QPDAMAA0040€25,643.79
A119QPDAMAA0045€25,643.79
A119MKAAMAA0175€7,520.63
A119PMDAMAA0030€16,584.98
A119PMDAMAA0025€16,584.98
A119PMDAMAA0035€16,584.98
A119PMDAMAA0040€16,584.98
A119PMDAMAA0050€16,584.98
A119PMDAMAA0045€16,584.98
A119PMDAMAA0055€16,584.98
A119PMDAMAA0070€16,584.98
A119PMDAMAA0065€16,584.98
A119PMDAMAA0060€16,584.98
A119MKAAMAA0195€7,520.63
A119MKAAMAA0180€7,520.63
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APOLLO VALVES -

12-200 Series Low Pressure Steam Heating Boiler Safety Valves

APOLLO VALVES 1220503A
StyleModelPrice (ex. VAT)
A1220503€681.64
A1220504€681.64
A1220505€681.64
A1220506€658.12
A1220514€681.64
A1220507€681.64
A1220514P5€682.77
A1220514P5AQ€749.18
A1220508Q€712.22
A1220508€372.33
A1220608€551.04
A12-205-08€372.33
RFQ
APOLLO VALVES -

13-100 Series Low Pressure Steam Safety Valves

APOLLO VALVES 13101A4A
StyleModelBody MaterialFactory Set PressureItemOverall LengthTemp. RangePrice (ex. VAT)
A13101A4--Relief Valve--€138.79
A13101B06--Relief Valve--€138.81
A13101B06Q--Relief Valve--€190.39
A13101B07--Relief Valve--€137.68
A13101B05A--Relief Valve--€137.61
A13101B08--Relief Valve--€138.79
A13101B10A--Relief Valve--€114.16
A13101B10Q--Relief Valve--€164.77
A13101B12--Relief Valve--€137.47
A13101B15Q--Relief Valve--€164.77
A13101B11--Relief Valve--€111.38
A13101B15Bronze15 psiSafety Relief Valve2 3/16"0° to 250° F€62.53
A13101B05Cast Bronze5 psiSafety Relief Valve2.187"0 Degrees to 250 Degrees F€61.86
A13101B10Cast Bronze10 psiSafety Relief Valve2.187"0 Degrees to 250 Degrees F€62.23
APOLLO VALVES -

13 Series Low Pressure Steam Boiler Valves

APOLLO VALVES 1320201A
StyleModelPrice (ex. VAT)
A1320201€162.35
A13213B07€254.79
A13213B15Q€285.41
A13213B12A€254.79
A13213B08€254.79
A13213B10Q€285.41
A13213B08A€254.79
A13213B07A€254.79
A13213B10€231.29
A13213B15A€231.29
A13213B06€255.95
A13213B06Q€310.04
A13211S10€161.64
A13211P10€193.18
A13211S15€161.64
A13211S08€161.64
A13213B05€255.95
A13214A2€302.02
A13214B05€325.54
A13211P08€217.79
A13214B12€325.54
A13214B14€302.02
A13214B17€326.72
A13214B15Q€356.18
A13214B13A€325.54
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APOLLO VALVES -

13-200 Series Low Pressure Steam Safety Valves

APOLLO VALVES 13211B05A
StyleModelBtuHFactory Set PressureInlet SizeOutlet SizeOverall HeightOverall LengthPrice (ex. VAT)
A13211B05-5 psi3/4"3/4"3 11/16"2 5/6"€73.36
A13211B10-10 psi3/4"3/4"3 11/16"2 5/6"€71.18
A13202B05-5 psi1"1"2 1/16"5.375"€78.33
A13202B10-10 psi1"1"2 1/16"5.375"€72.61
A13213B151,200,00015 psi1.25"1.5"4.5"3.375"€177.56
A13214B151,900,00015 psi1.5"2"5.25"4"€249.74
A13211B15475,00015 psi3/4"3/4"3 11/16"2 5/6"€71.18
A13202B15643,00015 psi1"1"2 1/16"5.375"€80.22
APOLLO VALVES -

14 Series High Volume Safety Relief Valves

APOLLO VALVES 1420503A
StyleModelPrice (ex. VAT)
A1420503€788.99
A1420708G€1,818.37
A1420704€1,773.28
A14206A7€1,499.93
A1420705€1,773.28
A1420706€1,750.60
A1420707€1,773.28
A1420706G€1,818.37
A1420708Q€1,804.70
A14206B4€1,499.93
A14207A5€1,773.28
A14207A4€1,773.28
A14207B1€1,773.28
A14207B4€1,773.28
A14207A7€1,773.28
A1420604€1,499.93
A1420703€1,773.28
A1420611€1,499.97
A1420505€788.99
A14205A6€788.99
A1420504€788.99
A1420507€788.99
A1420506€766.31
A1420508G€833.97
A1420508Q€819.38
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APOLLO VALVES -

10-322 Series Safety Valves

APOLLO VALVES 10322B30A
StyleModelPrice (ex. VAT)
A10322B30€287.60
A10322P30€184.00
A10322B15€309.69
A10322P50Q€363.78
APOLLO VALVES -

14-200 Series Low Pressure Steam Safety Valves

APOLLO VALVES 1420508A
StyleModelInlet SizeOutlet SizeOverall HeightPrice (ex. VAT)
A14205082"2"7.13"€299.79
A14206082.5"2.5"8.25"€859.33
A14207083"3"9.375"€1,018.32
APOLLO VALVES -

14-400 Series Low Pressure Air Relief Valves

APOLLO VALVES 1440722A
StyleModelPrice (ex. VAT)
A1440722€1,614.44
A1440708€1,614.44
A1440616€1,314.12
A1440617€1,314.12
A1440614€1,314.12
A1440618€1,314.12
A1440622€1,314.12
A1440619€1,314.12
A144069P5€1,314.12
A1440706€1,614.44
A1440707€1,614.44
A1440704€1,614.44
A1440709€1,614.44
A1440710€1,614.44
A1440612€1,314.12
A1440711€1,614.44
A1440712€1,614.44
A1440713€1,614.44
A1440714€1,614.44
A1440715€1,614.44
A1440711P5€1,614.44
A1440716€1,614.44
A1440717€1,614.44
A1440719€1,614.44
A1440718€1,614.44
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APOLLO VALVES -

14-600 Series Vacuum Relief Valves

APOLLO VALVES 14605V30A
StyleModelPrice (ex. VAT)
A14605V30€844.81
A14606V26€1,389.15
A14606V18€1,389.15
A14606V16€1,389.15
A14606V18HV€1,389.15
A14606V17€1,389.15
A14606V25€1,389.15
A14606V20€1,389.15
A14606V30€1,389.15
A14607V08€1,727.12
A14607V09€1,727.12
A14606V14Q€1,437.81
A14607V11€1,727.12
A14607V10€956.30
A14605V28€844.81
A14605V21€844.81
A14605V18€844.81
A14605V29€844.81
A14605V23€844.83
A14605V26€844.81
A14605V25€844.81
A14606V15€1,389.15
A14606V13€1,389.15
A14606V12Q€1,442.22
A14605V15€844.81
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APOLLO VALVES -

16 Series General Purpose Pressure Relief Valves

APOLLO VALVES 1620202A
StyleModelPrice (ex. VAT)
A1620202€48.53
A1620305€47.08
APOLLO VALVES -

16-501 Series Cast Bronze Adjustable Relief Valves

APOLLO VALVES 1650101A
APOLLO VALVES 1650102B
StyleModelPressure RangeTemp. RangeBody MaterialSeat MaterialDisc MaterialTest LeverFactory Set PressureInlet TypePrice (ex. VAT)
A165010150 to 250 psi0 Degrees to 200 Degrees FCast BronzeNitrileNitrileYes60 psiFNPT€62.75
A165012550 to 250 psi0 Degrees to 200 Degrees FCast BronzePTFEPTFEYes60 psiFNPT€62.84
B1650102250 to 600 psi0° to 200° FBronzeNitrileNitrileNo250 psiMNPT€62.69
A1650160250 to 600 psi0 Degrees to 200 Degrees FCast BronzePTFEPTFEYes250 psiFNPT€62.69
APOLLO VALVES -

29 Series Safety Valves

APOLLO VALVES 29102A105A
StyleModelPrice (ex. VAT)
A29102A105€477.33
A29202A50CE€504.21
A29202A38€478.19
A29202A42€478.19
A29202A43€478.19
A29202A44€478.19
A29202A45S€633.21
A29202A50€478.19
A29202A45€478.19
A29402A115€561.41
A29202A40€478.19
A29402A130€561.41
A29402A125€561.41
A29402A120€561.41
A29402A132€561.41
A29402A135€561.41
A29402A155€561.41
A29402A150€561.41
A29202A40S€633.21
A29202A39€478.19
A29402A145€561.41
A29202A200€478.19
A29202A185€478.19
A29202A190€478.19
A29202A180€478.19
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APOLLO VALVES -

500 Series Safety Relief Valves

APOLLO VALVES 511HGBKMAA0075A
StyleModelItemTest LeverOutlet TypeBody MaterialFactory Set PressureInlet SizeInlet TypeOutlet SizePrice (ex. VAT)
A511HGBKMAA0075POP Safety Relief ValveNoMNPTBronze75 psi1.5"FNPT2.5"€929.63
A541EDBKMAA0300POP Safety Relief ValveNoMNPTStainless Steel300 psi3/4"FNPT1.25"€1,281.93
A543FEBKMAA0200POP Safety Relief ValveYesMNPTStainless Steel200 psi1"FNPT1.5"€1,521.14
A543EEBKMAA0200POP Safety Relief ValveYesMNPTStainless Steel200 psi1"FNPT1.25"€1,436.23
A543FEBKMAA0100POP Safety Relief ValveYesMNPTStainless Steel100 psi1"FNPT1.5"€1,521.14
A511FEBKMAA0125POP Safety Relief ValveNoMNPTBronze125 psi1"FNPT1.5"€425.17
A543FEBKMAA0050POP Safety Relief ValveYesMNPTStainless Steel50 psi1"FNPT1.5"€1,521.14
A543EEBKMAA0050POP Safety Relief ValveYesMNPTStainless Steel50 psi1"FNPT1.25"€1,436.23
A541FEBKMAA0300POP Safety Relief ValveNoMNPTStainless Steel300 psi1"FNPT1.5"€1,335.99
A541DDBKMAA0300POP Safety Relief ValveNoMNPTStainless Steel300 psi3/4"FNPT1"€1,128.32
A543FEBKMAA0300POP Safety Relief ValveYesMNPTStainless Steel300 psi1"FNPT1.5"€1,521.14
A541DCBKMAA0300POP Safety Relief ValveNoMNPTStainless Steel300 psi1/2"FNPT1"€1,068.64
A541FEBKMAA0200POP Safety Relief ValveNoMNPTStainless Steel200 psi1"FNPT1.5"€1,335.99
A541EDBKMAA0200POP Safety Relief ValveNoMNPTStainless Steel200 psi3/4"FNPT1.25"€1,281.93
A541DDBKMAA0200POP Safety Relief ValveNoMNPTStainless Steel200 psi3/4"FNPT1"€1,128.32
A541DCBKMAA0200POP Safety Relief ValveNoMNPTStainless Steel200 psi1/2"FNPT1"€1,137.16
A541FEBKMAA0100POP Safety Relief ValveNoMNPTStainless Steel100 psi1"FNPT1.5"€1,335.99
A541EDBKMAA0100POP Safety Relief ValveNoMNPTStainless Steel100 psi3/4"FNPT1.25"€1,281.93
A543EEBKMAA0300POP Safety Relief ValveYesMNPTStainless Steel300 psi1"FNPT1.25"€1,436.23
A511DCDKMAA0075POP Safety Relief ValveNoMNPTBronze75 psi1/2"FNPT3/4"€305.00
A541DCBKMAA0100POP Safety Relief ValveNoMNPTStainless Steel100 psi1/2"FNPT1"€1,068.64
A511EDBKMAA0125POP Safety Relief ValveNoMNPTBronze125 psi3/4"FNPT1.25"€358.23
A511DDDKMAA0150POP Safety Relief ValveNoMNPTBronze150 psi3/4"FNPT3/4"€314.46
A511GFBKMAA0075POP Safety Relief ValveNoMNPTBronze75 psi1.25"FNPT2"€510.25
A511DCDKMAA0150POP Safety Relief ValveNoMNPTBronze150 psi1/2"FNPT3/4"€305.00
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Features

  • Kunkle safety and pressure relief valves open at a specific pressure to protect pumps and pipelines from exceeding stress limits.
  • These relief valves have an aluminium / bronze / stainless steel body with a stainless steel seat for leak-proof performance.
  • They can handle pressures up to 5500 psi.
  • The brand's bronze safety relief valves feature an MNPT inlet and FNPT outlet with outlet size being greater than the inlet size to relieve pressure. They are equipped with a test lever to lower or raise the pressure between 3 and 300 PSI.
  • Kunkle stainless steel relief valves feature a precisely calibrated spring mechanism, ensuring accurate pressure release according to specific system requirements. They can operate at temperatures ranging from -60 to 406 degrees F. These safety and pressure relief valves are equipped with a PTFE seat, providing reliable sealing to prevent any leakage, even under high-pressure scenarios.

Working Mechanism

  • As the pressure within the system rises, it reaches a predetermined set pressure.
  • At this set pressure, the force exerted by the pressurised fluid becomes greater than the force exerted by the spring mechanism inside the valve.
  • The force imbalance causes the valve's disc or poppet to lift off its seat, creating an opening.
  • The opening allows the pressurised fluid to escape from the system through the valve.
  • As the fluid exits through the valve, the pressure within the system starts to decrease.
  • Once the pressure decreases to a safe level, the spring's force becomes greater than the fluid force, causing the valve to close the opening.
  • By releasing excess pressure, the safety relief valve prevents any damage to the system, equipment or personnel that could result from an overpressure event.

Frequently Asked Questions

What is the purpose of a test lever in the relief valve?

The temperature and pressure relief valve comes with a test lever that allows pressure checks during operation.

What is the importance of the pressure setting in Kunkle relief valves?

Pressure setting determines when the valve opens, preventing overpressure scenarios. Accurate settings are a must for system safety.

What factors should be considered when selecting a pressure relief valve?

Important factors include the system's maximum pressure, flow rate, temperature and the type of fluid being used.

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