Relief Valves

Filter
StyleModelOverall HeightOutlet SizeInlet TypeOutlet TypeOverall LengthTemp. RangeTest LeverSpring MaterialPrice (inc. VAT)
A14205087.13"2"MNPTFNPT-0°F to +250°FYesSteel£440.68
A14206088 1/4"2 1/2"MNPTFNPT7 1/2"0°F to +250°FYesSteel£1,108.03
A14207089 3/8"3"MNPTFNPT-0°F to +250°FYesSteel£1,332.38
StyleModelMPNPrice (inc. VAT)
A0363-C01-KH0363-C01-KH£1,198.46
RFQ
A0363-C01-KH07150363-C01-KH0715£1,355.90
RFQ
A0363-C01-KH09800363-C01-KH0980£1,355.90
RFQ
A0363-C01-NH0363-C01-NH£1,198.46
RFQ
A0363-D01-KH0363-D01-KH£1,198.46
RFQ
A0363-D01-NH0363-D01-NH£1,198.46
RFQ
A0363-D02-KH0363-D02-KH£1,198.46
RFQ
A0363-D02-NH0363-D02-NH£1,198.46
RFQ
A363C-C01-KH363C-C01-KH£1,149.02
RFQ
A363C-C01-NH363C-C01-NH£1,149.02
RFQ
A363C-D01-KH363C-D01-KH£1,149.02
RFQ
A363C-D01-NH363C-D01-NH£1,149.02
RFQ
A363P-C01-KH363P-C01-KH£1,423.49
RFQ
A363P-C01-NH363P-C01-NH£1,423.49
RFQ
A363P-D01-KH363P-D01-KH£1,423.49
RFQ
A363P-D01-NH363P-D01-NH£1,423.49
RFQ
APOLLO VALVES -

10 Series Safety Relief Valves

StyleModelInlet TypeOutlet TypeOutlet SizeBody MaterialValve TypePrice (inc. VAT)
A1040705-----£70.60
B10512P15----Safety Valve£258.73
C1010207FNPTFNPT1"Bronze-£150.42
HAM-LET -

Relief Valves

StyleModelOverall LengthOverall HeightInlet TypeOutlet TypeSeat MaterialOutlet SizeBody MaterialPrice (inc. VAT)
AH-985-SS-N-1/4-SL1.57"3.49"MNPTFNPTFluorocarbon Fkm1/4"Stainless Steel£542.53
BH-900-HP-SS-L-1/4-A1.97"3.78"Let LokLet LokFluorocarbon Fkm1/4"Stainless Steel£473.60
CH-995-HP-SS-NL-1/4-A-EP1.97"3.49"MNPTMNPTEPDM1/4"Stainless Steel£455.84
BH-900-HP-SS-L-1/4-H1.97"3.78"Let LokLet LokFluorocarbon Fkm1/4"Stainless Steel£473.60
StyleModelMPNPrice (inc. VAT)
A071S-C01-MG071S-C01-MG£671.68
RFQ
A071S-D01-MG071S-D01-MG£671.68
RFQ
A071S-D01-MG0060071S-D01-MG0060£759.92
RFQ
A071S-D01-MG0080071S-D01-MG0080£759.92
RFQ
A071S-D01-MG0160071S-D01-MG0160£759.92
RFQ
A071S-E01-MG071S-E01-MG£793.58
RFQ
A071S-E01-MG0115071S-E01-MG0115£897.82
RFQ
A071S-F01-MG071S-F01-MG£953.82
RFQ
A071S-G01-MG071S-G01-MG£1,190.79
RFQ
A071S-H01-MG071S-H01-MG£1,984.37
RFQ
StyleModelMPNPrice (inc. VAT)
A228A-K01AMS228A-K01AMS£2,458.29
RFQ
A228A-M01AMS228A-M01AMS£3,734.32
RFQ
A228H-K01AMS228H-K01AMS£2,838.46
RFQ
A228H-K01AMS0100228H-K01AMS0100£3,211.33
RFQ
A228H-K02AMS228H-K02AMS£3,745.40
RFQ
A228H-M01AMS228H-M01AMS£3,921.85
RFQ
A228H-M01AMS0100228H-M01AMS0100£4,437.04
RFQ
A228H-M02AMS228H-M02AMS£5,531.16
RFQ
A228H-P01AMS228H-P01AMS£7,870.12
RFQ
A228H-P01AMS0100228H-P01AMS0100£8,903.97
RFQ
A228H-P02AMS228H-P02AMS£11,094.72
RFQ
A228H-P03AMS228H-P03AMS£8,903.97
RFQ
A228H-P06AMS228H-P06AMS£12,687.17
RFQ
A228K-K01AMS228K-K01AMS£2,838.46
RFQ
A228K-K01AMS0125228K-K01AMS0125£3,211.33
RFQ
A228K-M01AMS228K-M01AMS£3,921.85
RFQ
A228K-M01AMS0200228K-M01AMS0200£4,437.04
RFQ
A228K-M02AMS228K-M02AMS£5,531.16
RFQ
A228K-P01AMS228K-P01AMS£7,870.12
RFQ
A228K-P01AMS0100228K-P01AMS0100£8,903.97
RFQ
A228K-P01AMS0125228K-P01AMS0125£8,903.97
RFQ
A228K-P02AMS228K-P02AMS£11,094.72
RFQ
StyleModelMPNPrice (inc. VAT)
A0171-C01-MG0171-C01-MG£773.97
RFQ
A0171-D01-MG0171-D01-MG£773.97
RFQ
A0171-E01-MG0171-E01-MG£1,077.42
RFQ
A0171-F01-MG0171-F01-MG£1,305.86
RFQ
A0171-G01-MG0171-G01-MG£1,625.51
RFQ
A0171-H01-MG0171-H01-MG£2,597.23
RFQ
A171P-C01-MG171P-C01-MG£1,124.30
RFQ
A171P-D01-MG171P-D01-MG£1,124.30
RFQ
A171P-E01-MG171P-E01-MG£1,428.61
RFQ
A171P-F01-MG171P-F01-MG£1,722.68
RFQ
A171P-G01-MG171P-G01-MG£2,182.12
RFQ
A171P-H01-MG171P-H01-MG£3,292.78
RFQ
A171S-C01-MG171S-C01-MG£1,455.88
RFQ
A171S-C02-MG171S-C02-MG£1,805.36
RFQ
A171S-D01-MG171S-D01-MG£1,731.21
RFQ
A171S-D01-MG0130171S-D01-MG0130£1,958.62
RFQ
A171S-D02-MG171S-D02-MG£2,080.69
RFQ
A171S-E01-MG171S-E01-MG£2,014.20
RFQ
A171S-E02-MG171S-E02-MG£2,362.83
RFQ
A171S-F01-MG171S-F01-MG£2,431.02
RFQ
A171S-F02-MG171S-F02-MG£2,849.54
RFQ
A171S-G01-MG171S-G01-MG£3,038.77
RFQ
A171S-G01-MG0226171S-G01-MG0226£3,437.96
RFQ
A171S-G02-MG171S-G02-MG£3,595.38
RFQ
A171S-H01-MG171S-H01-MG£4,856.07
RFQ
StyleModelMPNPrice (inc. VAT)
A218A-K01AMS218A-K01AMS£2,236.67
RFQ
A218A-K02AMS218A-K02AMS£3,058.38
RFQ
A218A-M01AMS218A-M01AMS£3,395.92
RFQ
A218A-M02AMS218A-M02AMS£4,859.48
RFQ
A218H-K01AMS218H-K01AMS£2,581.89
RFQ
A218H-K02AMS218H-K02AMS£3,405.30
RFQ
A218H-K03AMS218H-K03AMS£3,405.30
RFQ
A218H-M01AMS218H-M01AMS£3,566.40
RFQ
A218H-M02AMS218H-M02AMS£5,028.25
RFQ
A218H-M03AMS218H-M03AMS£5,028.25
RFQ
A218H-P01AMS218H-P01AMS£7,087.63
RFQ
A218H-P02AMS218H-P02AMS£10,060.77
RFQ
A218H-P03AMS218H-P03AMS£8,534.62
RFQ
A218K-K01AMS218K-K01AMS£2,581.89
RFQ
A218K-K02AMS218K-K02AMS£3,405.30
RFQ
A218K-M01AMS218K-M01AMS£3,566.40
RFQ
A218K-M02AMS218K-M02AMS£5,028.25
RFQ
A218K-M03AMS218K-M03AMS£5,028.25
RFQ
A218K-P01AMS218K-P01AMS£7,087.63
RFQ
A218K-P01AMS0100218K-P01AMS0100£8,018.68
RFQ
A218K-P03AMS218K-P03AMS£10,060.77
RFQ
A218K-P04AMS218K-P04AMS£7,714.13
RFQ
StyleModelMPNPrice (inc. VAT)
A6186DCM01ANM6186DCM01ANM£288.42
RFQ
A6186DCM02AKM6186DCM02AKM£288.42
RFQ
A6186DCV01AKM6186DCV01AKM£320.47
RFQ
A6186EDM01AKM6186EDM01AKM£324.03
RFQ
A6186EDM01AKM01256186EDM01AKM0125£324.03
RFQ
A6186EDM01AKM01506186EDM01AKM0150£324.03
RFQ
A6186EDM01ANM6186EDM01ANM£324.03
RFQ
A6186EDM02AKM6186EDM02AKM£338.27
RFQ
A6186EDM02AKM01256186EDM02AKM0125£338.27
RFQ
A6186EDM02AKM01406186EDM02AKM0140£338.27
RFQ
A6186EDM02AKM01506186EDM02AKM0150£338.27
RFQ
A6186EDM61AKM6186EDM61AKM£365.86
RFQ
A6186FEM01AKM6186FEM01AKM£370.32
RFQ
A6186FEM01AKM00156186FEM01AKM0015£370.32
RFQ
A6186FEM02AKM6186FEM02AKM£384.56
RFQ
A6186FEM02AKM00656186FEM02AKM0065£384.56
RFQ
A6186FEM02AKM01156186FEM02AKM0115£384.56
RFQ
A6186FEM02AKM01356186FEM02AKM0135£384.56
RFQ
A6186FEM02AKM01506186FEM02AKM0150£384.56
RFQ
A6186FEM61AKM6186FEM61AKM£412.15
RFQ
A6186GFM01AKM6186GFM01AKM£477.14
RFQ
A6186GFM01AKM01356186GFM01AKM0135£477.14
RFQ
A6186GFM01AKM01406186GFM01AKM0140£477.14
RFQ
A6186GFM01AKM01506186GFM01AKM0150£477.14
RFQ
A6186GFM02AKM6186GFM02AKM£495.83
RFQ
StyleModelMPNPrice (inc. VAT)
A0030-A01-KM0030-A01-KM£149.17
RFQ
A0030-A01-KM02000030-A01-KM0200£168.76
RFQ
A0030-A01-KM04000030-A01-KM0400£168.76
RFQ
A0030-A01-KM05000030-A01-KM0500£168.76
RFQ
A0030-A01-KM06000030-A01-KM0600£168.76
RFQ
A0030-A01-KM06500030-A01-KM0650£168.76
RFQ
A0030-A01-KM07000030-A01-KM0700£168.76
RFQ
A0030-A01-KM08000030-A01-KM0800£168.76
RFQ
A0030-A01-KM13000030-A01-KM1300£168.76
RFQ
A0030-A01-KM14000030-A01-KM1400£168.76
RFQ
A0030-A01-KM18000030-A01-KM1800£168.76
RFQ
A0030-A60-KM0030-A60-KM£161.10
RFQ
StyleModelMPNPrice (inc. VAT)
A6934EDT01AGM6934EDT01AGM£399.69
RFQ
A6934FET01AGM6934FET01AGM£459.33
RFQ
A6934GFT01AGM6934GFT01AGM£589.30
RFQ
A6934HGT01AGM6934HGT01AGM£705.02
RFQ
A6934HHT01AGM6934HHT01AGM£934.69
RFQ
A6934JHT01AGM6934JHT01AGM£980.98
RFQ
StyleModelMPNPrice (inc. VAT)
A265P-C01-KF265P-C01-KF£1,624.46
RFQ
A265P-C01-LF265P-C01-LF£1,624.46
RFQ
A265P-C01-PF265P-C01-PF£1,624.46
RFQ
A265P-C02-KF265P-C02-KF£1,624.46
RFQ
A265P-C02-LF265P-C02-LF£1,624.46
RFQ
A265P-C02-PF265P-C02-PF£1,624.46
RFQ
A265P-C03-LF265P-C03-LF£1,624.46
RFQ
A265P-D01-KF265P-D01-KF£1,624.46
RFQ
A265P-D01-LF265P-D01-LF£1,624.46
RFQ
A265P-D01-MF265P-D01-MF£1,624.46
RFQ
A265P-D02-LF265P-D02-LF£1,624.46
RFQ
A265P-D03-KF265P-D03-KF£1,732.15
RFQ
A265P-D04-LF265P-D04-LF£1,624.46
RFQ
A265P-E01-LF265P-E01-LF£1,624.46
RFQ
A265P-E01-MF265P-E01-MF£1,624.46
RFQ
A265P-E01-PF265P-E01-PF£1,624.46
RFQ
A265P-E03-LF265P-E03-LF£1,624.46
RFQ
A265P-E03-PF265P-E03-PF£1,624.46
RFQ
APOLLO VALVES -

10-630 Series Safety Relief Valves

StyleModelInlet TypeOutlet TypeOutlet SizeBody MaterialPrice (inc. VAT)
A1063465----£215.70
B10634150FNPTFNPT3/4"Bronze£215.70
B1063430FNPTFNPT3/4"Bronze£121.76
B1063450FNPTFNPT3/4"Bronze£211.43
B1063490FNPTFNPT3/4"Bronze£211.43
B10634100FNPTFNPT3/4"Bronze£215.70
B1063480FNPTFNPT3/4"Bronze£215.70
B10634125FNPTFNPT3/4"Bronze£215.70
B1063440FNPTFNPT3/4"Bronze£215.70
B1063475FNPTFNPT3/4"Bronze£215.70
StyleModelOverall LengthOverall HeightFactory Set PressureInlet TypeOutlet TypeOutlet SizeTemp. RangeTest LeverPrice (inc. VAT)
A0019-E12-MG02253 1/8"7 1/8"225 psiFNPTMNPT1"-60°F to +406°FNo£567.47
A0019-E10-MG00503 1/8"7 1/8"50 psiFNPTMNPT1"-60°F to +406°FNo£583.87
A0019-E11-MG01003 1/8"7 1/8"100 psiFNPTMNPT1"-60°F to +406°FNo£608.06
A0019-C12-MG02253"6 1/8"225 psiFNPTMNPT3/4"-60°F to +406°FNo£486.87
A0019-D11-MG01003"6 1/8"100 psiFNPTMNPT3/4"-60°F to +406°FNo£531.11
A0019-D10-MG00503"6 1/8"50 psiFNPTMNPT3/4"-60°F to +406°FNo£513.16
A0019-C11-MG01003"6 1/8"100 psiFNPTMNPT3/4"-60°F to +406°FNo£486.87
A0019-D12-MG02253"6 1/8"225 psiFNPTMNPT3/4"-60°F to +406°FNo£504.94
A0019-C10-MG00503"6 1/8"50 psiFNPTMNPT3/4"-60°F to +406°FNo£531.11
A0019-G12-MG02254 1/4"8 5/8"225 psiFNPTMNPT1 1/2"-60°F to +406°FNo£876.72
A0019-G11-MG01004 1/4"8 5/8"100 psiFNPTMNPT1 1/2"-60°F to +406°FNo£876.72
A0019-G10-MG00504 1/4"8 5/8"50 psiFNPTMNPT1 1/2"-60°F to +406°FNo£911.80
A0019-F11-MG01004"8 1/8"100 psiFNPTMNPT1 1/4"-60°F to +406°FNo£751.79
A0019-F10-MG00504"8 1/8"50 psiFNPTMNPT1 1/4"-60°F to +406°FNo£732.16
A0019-F12-MG002254"8 1/8"225 psiFNPTMNPT1 1/4"-60°F to +406°FNo£755.17
A0019-H12-MG02255 1/4"10 5/8"225 psiFNPTMNPT2"-60°F to +406°FNo£1,143.69
A0019-H10-MG00505 1/4"10 5/8"50 psiFNPTMNPT2"-60°F to +406°FNo£1,153.10
A0019-H11-MG01005 1/4"10 5/8"100 psiFNPTMNPT2"-60°F to +406°FNo£1,155.67
A0019-J10-MG00506"11 1/8"50 psiFNPTMNPT2 1/2"-60°F to +406°FNo£1,771.15
A0019-J11-MG01006"11 1/8"100 psiFNPTMNPT2 1/2"-60°F to +406°FNo£1,771.15
A0019-J12-MG02256"11 1/8"225 psiFNPTMNPT2 1/2"-60°F to +406°FNo£1,771.15
A0019-K10-MG00507 1/2"12 1/4"50 psiFNPTMNPT3"-60°F to +406°FNo£2,892.79
A0019-K11-MG01007 1/2"12 1/4"100 psiFNPTMNPT3"-60°F to +406°FNo£2,892.79
A0019-K12-MG02257 1/2"12 1/4"225 psiMNPTFNPT3"-60°F to +406°FNo£2,892.79
APOLLO VALVES -

13-500 Series Low Pressure Steam Safety Valves

StyleModelFinishOutlet SizeSpring MaterialSeat MaterialBody MaterialPrice (inc. VAT)
A13511A3-----£96.41
B13511B08-----£90.82
B13512B09-----£89.71
A13511B07-----£90.79
A13511A2-----£73.83
B13511B06-----£90.79
B13511B12-----£90.79
A13511B6-----£96.41
B13511S08-----£117.72
B13511B15Bronze Finish3/4"Stainless SteelModified TFEBronze£99.44
B13511B10Bronze Finish3/4"Stainless SteelModified TFEBronze£67.10
B13512B15Bronze Finish3/4"Stainless SteelModified TFEBronze£45.82
B13512B10Bronze Finish3/4"Stainless SteelModified TFEBronze£67.10
B13512B05Bronze Finish3/4"Stainless SteelModified TFEBronze£90.79
B13511B05Bronze Finish3/4"Stainless SteelModified TFEBronze£90.82
A13511P15Polished Chrome Finish3/4"Stainless SteelModified TFEBronze£131.54
A13511P05Polished Chrome Finish3/4"Stainless SteelModified TFEBronze£155.51
A13511P10Polished Chrome Finish3/4"Stainless SteelModified TFEBronze£131.54
A13511S15Satin Chrome Finish3/4"Stainless SteelModified TFEBronze£93.98
APOLLO VALVES -

16-501 Series Cast Bronze Adjustable Relief Valves

StyleModelSeat MaterialDisc MaterialPressure RatingOverall HeightInlet TypeOutlet TypeOutlet SizeTemp. RangePrice (inc. VAT)
A1650101NitrileNitrile50 psi to 250 psi4 1/8"MNPTFNPT1/2"0°F to +200°F£77.48
B1650102NitrileNitrile250 psi to 600 psi4 1/8"MNPTFNPT1/2"0°F to +200°F£68.67
A1650125PTFEPTFE50 psi to 250 psi4 1/8"MNPTFNPT1/2"0°F to +200°F£86.70
A1650160PTFEPTFE250 psi to 600 psi4 1/8"MNPTFNPT1/2"0°F to +200°F£77.64
APOLLO VALVES -

13-100 Series Low Pressure Steam Safety Valves

StyleModelOutlet TypeOverall LengthOutlet SizeSeat MaterialBody MaterialOverall HeightInlet TypeSpring MaterialPrice (inc. VAT)
A13101B07--------£133.74
A13101A4--------£134.82
B13101B06--------£127.58
B13101B06Q--------£177.22
B13101B11--------£126.45
B13101B08--------£127.58
B13101B12--------£133.54
A13101B15FNPT2.188"3/4"EPDMCast Bronze2 7/8"MNPTStainless Steel£90.03
A13101B10FNPT2.187"3/4"EPDMCast Bronze2 7/8"MNPTStainless Steel£90.96
A13101B05FNPT2.187"3/4"EPDMCast Bronze2 7/8"MNPTStainless Steel£94.10
B13101B10ATop Outlet-Not ApplicableModified TFEBronze--Stainless Steel£110.89
B13101B15QTop Outlet-Not ApplicableModified TFEBronze--Stainless Steel£152.59
B13101B05ATop Outlet-Not ApplicableModified TFEBronze--Stainless Steel£133.68
B13101B10QTop Outlet-Not ApplicableModified TFEBronze--Stainless Steel£152.59
APOLLO VALVES -

14-600 Series Vacuum Relief Valves

StyleModelOutlet SizeInlet TypeOutlet TypeBody MaterialPrice (inc. VAT)
A14606V10----£679.40
B14606V18HV----£1,349.46
A14605V16----£736.68
C14606V172 1/2"MNPTFNPTBronze£1,349.46
C14606V12Q2 1/2"MNPTFNPTBronze£1,388.61
C14606V262 1/2"MNPTFNPTBronze£1,337.55
C14606V202 1/2"MNPTFNPTBronze£1,337.55
C14606V252 1/2"MNPTFNPTBronze£1,349.46
C14606V162 1/2"MNPTFNPTBronze£1,337.55
C14606V182 1/2"MNPTFNPTBronze£1,337.55
C14606V092 1/2"MNPTFNPTBronze£1,337.55
C14606V152 1/2"MNPTFNPTBronze£1,337.55
C14606V142 1/2"MNPTFNPTBronze£1,337.55
C14606V302 1/2"MNPTFNPTBronze£1,337.55
C14606V14Q2 1/2"MNPTFNPTBronze£1,384.37
C14606V122 1/2"MNPTFNPTBronze£1,349.46
C14606V132 1/2"MNPTFNPTBronze£1,337.55
C14606V112 1/2"MNPTFNPTBronze£1,337.55
C14606V082 1/2"MNPTFNPTBronze£1,337.55
C14605V242"MNPTFNPTBronze£820.67
C14605V112"MNPTFNPTBronze£820.67
C14605V152"MNPTFNPTBronze£813.43
C14605V122"MNPTFNPTBronze£813.43
C14605V172"MNPTFNPTBronze£820.67
A14605V202"MNPTFNPTBronze£813.43
StyleModelInlet TypeOutlet TypeOutlet SizeBody MaterialPrice (inc. VAT)
A10322B15MNPTFNPT3/4"Brass£310.16
A10322P50QMNPTFNPT3/4"Brass£353.39
A10322B30MNPTFNPT3/4"Brass£310.16
A10322P30MNPTFNPT3/4"Brass£181.38
APOLLO VALVES -

10-600 Series Safety Relief Valves

StyleModelOutlet SizeInlet TypeOutlet TypeBody MaterialPrice (inc. VAT)
A10604E6----£234.87
RFQ
A10617E7----£1,078.55
RFQ
A1060536Q----£472.48
A10606E6----£708.66
RFQ
B1060633----£605.85
A10615E6----£466.08
RFQ
A10617E6----£1,078.55
RFQ
A1060521----£421.02
A10618E7----£1,579.37
RFQ
A1060410BL----£246.62
C10616041 1/2"FNPTFNPTBronze£751.71
A1061605Q1 1/2"FNPTFNPTBronze£802.82
C10607161 1/2"FNPTFNPTBronze£966.91
C10607121 1/2"FNPTFNPTBronze£966.91
C10607111 1/2"FNPTFNPTBronze£966.91
C106070331 1/2"FNPTFNPTBronze£966.91
C10616081 1/2"FNPTFNPTBronze£751.71
C10607071 1/2"FNPTFNPTBronze£966.91
C10607061 1/2"FNPTFNPTBronze£966.91
C10616031 1/2"FNPTFNPTBronze£751.71
A1061609Q1 1/2"FNPTFNPTBronze£810.00
C10607041 1/2"FNPTFNPTBronze£966.91
C10607141 1/2"FNPTFNPTBronze£966.91
C10607171 1/2"FNPTFNPTBronze£966.91
C10607021 1/2"FNPTFNPTBronze£975.53
APOLLO VALVES -

12-200 Series Low Pressure Steam Heating Boiler Safety Valves

StyleModelMPNPrice (inc. VAT)
A12205031220503£656.32
B12205041220504£656.32
A12205051220505£656.32
A12205061220506£633.68
B12205071220507£656.32
A12205081220508£358.54
B1220508Q1220508Q£685.74
A12205141220514£656.32
A1220514P51220514P5£657.40
A1220514P5AQ1220514P5AQ£721.36
B12206081220608£530.54
12...1011

Relief Valves

Pressure relief valves are designed to control or release built-up pressure in the system which may otherwise damage pipelines and equipment. Raptor Supplies offers a wide range of relief valves including shut off, safety, drain & pressure valves from Apollo, Watts, Parker, Milton Industries, Hayward, Oil Safe, Campbell & more. Apollo safety relief valves are designed according to ASME Section IV standards for the protection of steam boilers. These bronze constructed valves feature metal to metal, PCTFE or elastomer O-ring seating, thereby having a wide pressure and temperature range. They are capable of withstanding a maximum pressure of 1200 PSI and are available in inlet sizes ranging from 1/2 to 3 inches. Watts adjustable relief valves are designed to release pressure (up to 200 PSI) when the set internal pressure is encountered in systems containing air, oil or water. Watts 1450F Series combination fill and relief valves feature a silicone disc to provide positive seating and leakproof operation. These valves are available in bronze, brass, iron, lead free bronze and lead free brass variants.

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