1 1/2 in Inlet Diameter 1 1/2 in Outlet Diameter Relief Valves

264 results

New ListingNew Kunkle 910BHGM02AME Relief Valve 1-1/2" MPT x 2-1/2" FPTSet 150psig - No Box
$299.95
or Best Offer
Free shipping
NEW Fulflo VJ7RSP/HS/XS Relief Valve 1-1/2" Screw Connections Cast Iron
$450.00
or Best Offer
$35.11 shipping
Kunkle 6010GFM01-AM Safety Relief Valve 1.5in 150 PSI 2,238 PPH
Pre-Owned · Kunkle
$220.00
or Best Offer
$16.58 shipping
GE Consolidated 193571 C-2-CC-MS-33-FT-FT-GS Pressure Relief Valve 11/2" 45Psi
Pre-Owned
$280.00
Was: $400.00was - US $400.00
or Best Offer
$25.00 shipping
Watts 1/2 Lf530-C Adjustable Relief Valve,1/2 In,175 Psi
7,000+ Brands. Free Shipping. Hassle Free Returns.
Brand New
(7)
$119.98
Free shipping
Est. delivery Sat, Aug 30
Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 120PSI -20 to 400F
$52.17
Was: $69.56was - US $69.56
or Best Offer
Free shipping
Neptune RV-BR 1/2" 50psi Water Relief Valve Pressure Pump BP-PVC/RV PVC/RV-BR
$32.50
or Best Offer
Free shipping
Only 1 left!
APOLLO RVS14-212 BRAND NEW HI CAPACITY SAFETY RELIEF VALVE 15 PSI 2-1/2''
Brand New
$299.99
Free shipping
APCO 50 Iron Air Vent Valve, 1/2” NPT 175psi
$79.00
or Best Offer
$14.00 shipping
AGF - M7000 - 1/2" Pressure Relief Valve - 175 psi - New open box
Brand New
$99.00
$8.24 shipping
Franklin Fueling Systems 1 1/2 in. NPT Anti-Siphon Valve for Above Ground Tank
(5 to 12 ft. Head Pressure Range)
$275.00
Free shipping
Apollo Valve 10-512 Series Brass Safety Relief Valve 12 Psi RVS52-12 Or RVS52
$76.00
Was: $95.00was - US $95.00
or Best Offer
$16.65 shipping
SMC VHS40-N04B-Z Pressure Relief Valve W Locking Holes, 1/2in NPT, 15-150PSI NEW
Brand New
$29.99
$4.00 shipping
USED Fulflo VJ7R/XS/KD Relief Valve 1-1/2" Screw Connections Cast Iron
$225.00
or Best Offer
$35.11 shipping
Kunkle 0020-C02-MC Pressure Relief Safety Valve 1/2" Set 30PSIG Capacity 5.1 GPM
$199.99
or Best Offer
$20.37 shipping
AQUATROL INC. - #79 Brass Relief Valve, 1-1/2" x 1-1/2", 693lbs per hour (NEW)
$329.99
$11.57 shipping
Sun Hydraulics FNV 9FE8 K1 valve sequence pressure relief "New" FNV S84947 8FL8
$32.95
or Best Offer
$8.50 shipping
MECLINE VRT100-330 Unloader Valve
$160.00
or Best Offer
$15.00 shipping
SMC VHS40-N04B-Z Pressure Relief Valve /w Locking Holes, 1/2in NPT, 15-150PSI
Brand New
$35.00
or Best Offer
Free shipping
Apollo Valves Safety Relief Valve 1/2" Brass RVS52-30 30 PSI Brass Finish-Used
Pre-Owned
$34.36
Was: $42.95was - US $42.95
or Best Offer
Free shipping
Rego - PRV9434T200 Brass Cryogenic Relief Valve 1/2" NPT to 200 PSIG PTFE
Brand New
$49.00
or Best Offer
$6.95 shipping
Webster 1/2" 150lbs No 111L Bronze Pressure Relief Valve
$67.88
Free shipping
Griffco - G-Series Pressure Relief Valve - 1/2" Female NPT - PRG050AOSS - 316 SS
Pre-Owned
$309.99
$3.00 shipping
Liquiflo RV1000-HP High Pressure 316 Stainless Relief Valve
$405.00
$25.04 shipping
2 Vintage Webster 1/2" 125 lbs No 111 Bronze Pressure Relief Valves NOS
$39.99
or Best Offer
$8.99 shipping
STERIFLOW 96C SANITARY PRESSURE REDUCER VALVE 1/2" 5-25/RANGE 316L-TRIM EPDM
$599.99
$28.03 shipping
Zurn Pressure Relief Valve 12-P1550XL-100, 1/2" NPT, Cast Bronze, 75 to 100 PSI
Brand New
$18.10
Free shipping
NEW NO BOX AQUATROL 20 PSI. SAFETY RELIEF VALVE 560GG1M9A1 SIZE 1-1/2 X 1-1/2
$145.00
or Best Offer
Free shipping
CONBRACO 19-801-30 2-1/2 BRONZE SAFETY RELIEF VALVE 19KJJK125 For STEAM. 40
$525.00
or Best Offer
$28.75 shipping
Fort Vale 2-1/2" MAXI HighFlow Relief Valve 00/16300 | Ser 8611081 | 6860 SCFM
Pre-Owned
$174.99
or Best Offer
$6.82 shipping
Cash Acme FVX-4 1-1/2" Temperature & Pressure Relief Valve 150 PSI (16221-0150)
$299.00
or Best Offer
$12.27 shipping
Kunkle 200A Pressure Relief Safety Valve Size 1/2" in Set 200 Cap 137 GPM
Pre-Owned · Kunkle
$179.99
or Best Offer
$32.28 shipping
Kunkle Blower Pressure Relief Valve 2-1/2" NPT- 0337-J01AKE
$604.99
or Best Offer
$42.94 shipping
Conbraco 1/2" Pressure Relief Valve 1740104 150 PSI 1/2" M x 1/2" F
Brand New · Conbraco
$25.50
Free shipping
Cla-Val CRL Pilot 20-200PSI Stock #7922202C
Brand New · Cla-Val
$874.06
or Best Offer
Free shipping
1/2" EXPANSION RELIEF VALVE
$399.99
or Best Offer
Free shipping
R. Conrader Relief Valve CRN 0G06391.2C SRV 390 125 PSI 1/2" NPT (New)
$19.95
$5.25 shipping
1/2" Brass Pressure Relief Valve (75 Psi Set Relief) ProPlumber PPRV50NL-X
$18.99
Free shipping
Watts 1-1/2 174A-075 Bronze 75 Psi Safety Relief Valve
$250.00
or Best Offer
Free shipping
Aquatrol 69E1B1M2U1 Adjustable Relief Valve 401-600 PSI, 1-1/2 x 1-1/2" . NEW
$165.00
$15.00 shipping
REGO PRV9434T350 CRYOGENIC PRESSURE RELIEF VALVE, 1/2" NPT, 350 PSI MAX, NIB
$59.95
or Best Offer
Free shipping
Only 1 left!
J.E. Lonegran ODF 1/2'' Pressure Relief Valve NVB Press 150 Cap 324
$20.00
Free shipping
NNI 1/2" NPT Calibrated Pressure Relief Valve 50-200 Psi Adjustment BPR050C
Brand New
$59.95
$5.95 shipping
644 sold
Apollo Conbraco 36B/C Series 1/2" 75# 400 psi Bronze Double Union Pressure Valve
$49.95
Free shipping
Dresser Consolidated 1-1/2" , 1543H-21 Relief Valve,185 PSI
Brand New
$220.00
or Best Offer
$15.00 shipping
Hayward Adjustable Pressure Relief Valve RV2050T, 1/2" NPT, CPVC, FPM, 150 psi
$499.95
$10.00 shipping
Brass 1/2 in. Pressure Relief Valve, 75 PSI
Brand New
$19.99
Free shipping
Sears 75 psi Well Water Pump Safety Pressure Relief Valve 1/2" Male Inlet USA
Brand New
$39.99
or Best Offer
Free shipping
Kunkle 1.5" x 2.5" Consolidated Safety Relief Valve 6252FJG01-AS Set 190 psi
Refurbished · Kunkle
$449.99
Was: $499.99was - US $499.99
or Best Offer
$55.39 shipping
Apollo Valves 19MGGK-165 Safety Relief Valve 1 1/2" x 1 1/2" Brass
$291.00
Was: $485.00was - US $485.00
or Best Offer
$10.05 shipping
NEW! KUNKLE 0020-G01-MG , BRASS SAFETY RELIEF VALVE ,1-1/2" , SET-25 psi, NIB!
$249.99
or Best Offer
$31.28 shipping
Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 150PSI -20 to 400F
$52.17
Was: $69.56was - US $69.56
or Best Offer
Free shipping
Consolidated 1-1/2" Safety Relief Valve, Dresser Type #1543H *NEW*
$430.00
or Best Offer
$24.00 shipping
(SET2) MERRILL PRVNL50-A 1/2"INLET/OUTLET NO-LEAD BRASS PRESSURE RELIEF VALVE
Brand New
$39.99
or Best Offer
Free shipping
NEW Cash Valve BZCWSSBBS01AD 1/2'' Pressure Regulating Valve 10-50 PSI
$299.99
or Best Offer
Free shipping
NEW Watts 1/2 LF111-125 brass pressure relief valve lead free 1/2" 0121741
Brand New
$79.95
$8.75 shipping
Dresser,1932C-1,1/2 Inch Consolidated Relief Valve
$280.00
or Best Offer
$18.11 shipping
NEW Liquid Relief Valve 0020 20-G01-MG - 1.5"x1.5" Kunkle Valve
Brand New · Kunkle
$300.00
or Best Offer
Free shipping
Flow Safe 4500 psi 1/2" NPT Pressure relief valve
Pre-Owned
$125.00
or Best Offer
$9.00 shipping
Watts 1-1/2 174A-075 Bronze 75 Psi Safety Relief Valve
(10)
$220.00
or Best Offer
Free shipping

Best selling

See All

6 Water Source Rv50-nl RV50NL 1/2-inch Pressure Relief Valve No Lead 75 PSI
(1)
$12.99 New
Watts 0915527 Adjustable Relief Valve 1/2 in 175 PSI
(7)
$45.00 New
Vhs40-n04b-z SMC Lockout Pressure Relief Valve VHS40N04BZ
$30.00 New
$18.95 Used
FISHER CONTROLS REGULATOR TYPE 98-H-50 STOP RELIEF VALVE (B146)
Plumb eeze - Relief Valve Brass Laiton 100 psi 1/2" PANL-RV05-100 *Read
$19.99 New

1 1/2 in Inlet Diameter 1 1/2 in Outlet Diameter Relief Valves

Shop by category

264 results

New ListingNew Kunkle 910BHGM02AME Relief Valve 1-1/2" MPT x 2-1/2" FPTSet 150psig - No Box

NEW Fulflo VJ7RSP/HS/XS Relief Valve 1-1/2" Screw Connections Cast Iron

Kunkle 6010GFM01-AM Safety Relief Valve 1.5in 150 PSI 2,238 PPH

GE Consolidated 193571 C-2-CC-MS-33-FT-FT-GS Pressure Relief Valve 11/2" 45Psi

Watts 1/2 Lf530-C Adjustable Relief Valve,1/2 In,175 Psi

Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 120PSI -20 to 400F

Neptune RV-BR 1/2" 50psi Water Relief Valve Pressure Pump BP-PVC/RV PVC/RV-BR

APOLLO RVS14-212 BRAND NEW HI CAPACITY SAFETY RELIEF VALVE 15 PSI 2-1/2''

APCO 50 Iron Air Vent Valve, 1/2” NPT 175psi

AGF - M7000 - 1/2" Pressure Relief Valve - 175 psi - New open box

Franklin Fueling Systems 1 1/2 in. NPT Anti-Siphon Valve for Above Ground Tank

Apollo Valve 10-512 Series Brass Safety Relief Valve 12 Psi RVS52-12 Or RVS52

SMC VHS40-N04B-Z Pressure Relief Valve W Locking Holes, 1/2in NPT, 15-150PSI NEW

USED Fulflo VJ7R/XS/KD Relief Valve 1-1/2" Screw Connections Cast Iron

Kunkle 0020-C02-MC Pressure Relief Safety Valve 1/2" Set 30PSIG Capacity 5.1 GPM

AQUATROL INC. - #79 Brass Relief Valve, 1-1/2" x 1-1/2", 693lbs per hour (NEW)

Sun Hydraulics FNV 9FE8 K1 valve sequence pressure relief "New" FNV S84947 8FL8

MECLINE VRT100-330 Unloader Valve

SMC VHS40-N04B-Z Pressure Relief Valve /w Locking Holes, 1/2in NPT, 15-150PSI

Apollo Valves Safety Relief Valve 1/2" Brass RVS52-30 30 PSI Brass Finish-Used

Rego - PRV9434T200 Brass Cryogenic Relief Valve 1/2" NPT to 200 PSIG PTFE

Webster 1/2" 150lbs No 111L Bronze Pressure Relief Valve

Griffco - G-Series Pressure Relief Valve - 1/2" Female NPT - PRG050AOSS - 316 SS

Liquiflo RV1000-HP High Pressure 316 Stainless Relief Valve

2 Vintage Webster 1/2" 125 lbs No 111 Bronze Pressure Relief Valves NOS

STERIFLOW 96C SANITARY PRESSURE REDUCER VALVE 1/2" 5-25/RANGE 316L-TRIM EPDM

Zurn Pressure Relief Valve 12-P1550XL-100, 1/2" NPT, Cast Bronze, 75 to 100 PSI

NEW NO BOX AQUATROL 20 PSI. SAFETY RELIEF VALVE 560GG1M9A1 SIZE 1-1/2 X 1-1/2

CONBRACO 19-801-30 2-1/2 BRONZE SAFETY RELIEF VALVE 19KJJK125 For STEAM. 40

Fort Vale 2-1/2" MAXI HighFlow Relief Valve 00/16300 | Ser 8611081 | 6860 SCFM

Cash Acme FVX-4 1-1/2" Temperature & Pressure Relief Valve 150 PSI (16221-0150)

Kunkle 200A Pressure Relief Safety Valve Size 1/2" in Set 200 Cap 137 GPM

Kunkle Blower Pressure Relief Valve 2-1/2" NPT- 0337-J01AKE

Conbraco 1/2" Pressure Relief Valve 1740104 150 PSI 1/2" M x 1/2" F

Cla-Val CRL Pilot 20-200PSI Stock #7922202C

1/2" EXPANSION RELIEF VALVE

R. Conrader Relief Valve CRN 0G06391.2C SRV 390 125 PSI 1/2" NPT (New)

1/2" Brass Pressure Relief Valve (75 Psi Set Relief) ProPlumber PPRV50NL-X

Watts 1-1/2 174A-075 Bronze 75 Psi Safety Relief Valve

Aquatrol 69E1B1M2U1 Adjustable Relief Valve 401-600 PSI, 1-1/2 x 1-1/2" . NEW

REGO PRV9434T350 CRYOGENIC PRESSURE RELIEF VALVE, 1/2" NPT, 350 PSI MAX, NIB

J.E. Lonegran ODF 1/2'' Pressure Relief Valve NVB Press 150 Cap 324

NNI 1/2" NPT Calibrated Pressure Relief Valve 50-200 Psi Adjustment BPR050C

Apollo Conbraco 36B/C Series 1/2" 75# 400 psi Bronze Double Union Pressure Valve

Dresser Consolidated 1-1/2" , 1543H-21 Relief Valve,185 PSI

Hayward Adjustable Pressure Relief Valve RV2050T, 1/2" NPT, CPVC, FPM, 150 psi

Brass 1/2 in. Pressure Relief Valve, 75 PSI

Sears 75 psi Well Water Pump Safety Pressure Relief Valve 1/2" Male Inlet USA

Kunkle 1.5" x 2.5" Consolidated Safety Relief Valve 6252FJG01-AS Set 190 psi

Apollo Valves 19MGGK-165 Safety Relief Valve 1 1/2" x 1 1/2" Brass

NEW! KUNKLE 0020-G01-MG , BRASS SAFETY RELIEF VALVE ,1-1/2" , SET-25 psi, NIB!

Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 150PSI -20 to 400F

Consolidated 1-1/2" Safety Relief Valve, Dresser Type #1543H *NEW*

(SET2) MERRILL PRVNL50-A 1/2"INLET/OUTLET NO-LEAD BRASS PRESSURE RELIEF VALVE

NEW Cash Valve BZCWSSBBS01AD 1/2'' Pressure Regulating Valve 10-50 PSI

NEW Watts 1/2 LF111-125 brass pressure relief valve lead free 1/2" 0121741

Dresser,1932C-1,1/2 Inch Consolidated Relief Valve

NEW Liquid Relief Valve 0020 20-G01-MG - 1.5"x1.5" Kunkle Valve

Flow Safe 4500 psi 1/2" NPT Pressure relief valve

Watts 1-1/2 174A-075 Bronze 75 Psi Safety Relief Valve

Best selling

6 Water Source Rv50-nl RV50NL 1/2-inch Pressure Relief Valve No Lead 75 PSI

Watts 0915527 Adjustable Relief Valve 1/2 in 175 PSI

Vhs40-n04b-z SMC Lockout Pressure Relief Valve VHS40N04BZ

FISHER CONTROLS REGULATOR TYPE 98-H-50 STOP RELIEF VALVE (B146)

Plumb eeze - Relief Valve Brass Laiton 100 psi 1/2" PANL-RV05-100 *Read

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Consolidated 1-1/2" Safety Relief Valve, Dresser Type #1543H NEW