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

118 results

Apollo Valves 1-512-B30 1/2" Inlet, 1/2" Outlet, ASME Safety Valve 30 Max psi,
Pre-Owned
RM 146.34
Was: RM 166.28was - RM 166.28
or Best Offer
RM 130.50 shipping
HYDROSEAL 3CRV3LN/G5 SS CF8M Safety Relief Valve 1/2" NPT 2400 psi 2947 scfm
New (Other)
RM 832.46
or Best Offer
RM 170.76 shipping
Apollo Valves Safety Relief Valve 1/2" Brass RVS52-30 30 PSI Brass Finish-Used
Pre-Owned
RM 161.37
Was: RM 183.35was - RM 183.35
or Best Offer
RM 82.61 shipping
ECON® Spring-loaded safety valve fig. 1515 steel low-lifting G1/2" MXF 11.5 bar
New (Other)
RM 405.56
or Best Offer
RM 106.73 shipping
New ListingHayward Adjustable Pressure Relief Valve RV2050T, 1/2" NPT, CPVC, FPM, 150 psi
New (Other)
RM 2,134.29
RM 180.96 shipping
Apollo Valve 10-512 Series Brass Safety Relief Valve 12 Psi RVS52-12 Or RVS52
New (Other)
RM 405.56
or Best Offer
RM 142.33 shipping
CLA VAL CRL Relief Pilot 20-200PSI SSTL Body 7922302A
New (Other) · Cla-Val
RM 3,607.31
or Best Offer
RM 188.60 shipping
(SET2) MERRILL PRVNL50-A 1/2"INLET/OUTLET NO-LEAD BRASS PRESSURE RELIEF VALVE
Brand New
RM 170.72
or Best Offer
RM 82.90 shipping
HENRY PRESSURE RELIEF VALVE 5601 / 5601 SIZE 1/2 PSI 150
New (Other)
RM 405.56
Was: RM 426.90was - RM 426.90
or Best Offer
Free shipping
NNI 1/2" NPT Calibrated Pressure Relief Valve 50-200 Psi Adjustment BPR050C
Brand New
RM 255.93
RM 103.99 shipping
125 watching
Niezgodka Type 10.2 Stainless Steel Safety Relief Valve TUV-SV-09-847 G 1/2"
New (Other)
RM 747.08
or Best Offer
RM 106.73 shipping
ZURN Pressure Relief Valve 12-P1520XL-100 1/2 MPT X 1/2 FPT New
Brand New
RM 123.59
or Best Offer
RM 81.50 shipping
FISHER CONTROLS REGULATOR TYPE 98-H-50 STOP RELIEF VALVE (B340)
Brand New
RM 704.39
RM 162.69 shipping
Endeavour HI5SS-801-003 SS High Pressure Safety Release Valve 1/2" MWP 6500 psi
New (Other)
RM 1,067.25
or Best Offer
RM 106.73 shipping
Kunkle 200A Pressure Relief Safety Valve Size 1/2" in Set 200 Cap 137 GPM
Pre-Owned · Kunkle
RM 768.38
or Best Offer
RM 669.59 shipping
Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 90PSI -20 to 400F
New (Other)
RM 237.57
Was: RM 296.95was - RM 296.95
or Best Offer
RM 82.31 shipping
MECLINE VRT100-330 Unloader Valve
New (Other)
RM 683.04
or Best Offer
RM 281.75 shipping
WATTS PRESSURE RELIEF VALVE SERIES 53/530 - Model Number - 1X624A
New (Other)
RM 527.22
or Best Offer
RM 69.46 shipping
AGF - AGF600 - 1/2" Thermal Expansion Relief Valve - 175 psi
New (Other)
RM 240.09
Was: RM 320.13was - RM 320.13
RM 82.39 shipping
1/2" EXPANSION RELIEF VALVE
New (Other) · Unbranded
RM 1,707.56
or Best Offer
RM 176.57 shipping
Webster 1/2" 150lbs No 111L Bronze Pressure Relief Valve
New (Other)
RM 289.78
RM 86.40 shipping
VYC 685-ES-015-1/2"-650 Safety Relief Valve - Spring Loading
New (Other)
RM 548.57
or Best Offer
RM 98.74 shipping
New NIB PLAST-O-MATIC RVDTM050T-PV Adjustable Relief Valve 1/2 In 100 psi
Brand New
RM 1,195.32
RM 113.13 shipping
APCO 50 Iron Air Vent Valve, 1/2” NPT 175psi
New (Other)
RM 337.25
or Best Offer
RM 147.58 shipping
WATTS FP53L NOS Thermal Expansion Relief Valve 175 PSI
New (Other)
RM 196.33
or Best Offer
RM 81.11 shipping
Only 1 left!
Spence Regulators 0031-HGA-150 1.5" 150psi Steam Relief Valve 6477psi per Hour
Pre-Owned
RM 554.76
or Best Offer
RM 171.06 shipping
Prince double relief valve DRV-4NHNH-18-18.1800 psi @10 GPM. 1/2 in. ports.
Brand New
RM 255.71
RM 238.34 shipping
10 watching
Apollo Conbraco 36B/C Series 1/2" 75# 400 psi Bronze Double Union Pressure Valve
New (Other)
RM 298.62
RM 86.66 shipping
Ratermann Pressure Relief Valve Assembly 1/2" NPT Inlet & Outlet 300 PSI
Brand New
RM 256.14
or Best Offer
RM 119.57 shipping
Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 120PSI -20 to 400F
New (Other)
RM 237.57
Was: RM 296.95was - RM 296.95
or Best Offer
RM 82.31 shipping
Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 150PSI -20 to 400F
New (Other)
RM 237.57
Was: RM 296.95was - RM 296.95
or Best Offer
RM 84.87 shipping
Apollo Valves 19MGGK-165 Safety Relief Valve 1 1/2" x 1 1/2" Brass
New (Other)
RM 1,449.33
Was: RM 2,070.47was - RM 2,070.47
or Best Offer
RM 382.93 shipping
Zurn 12-P1500XL - 1/2" Pressure Relief Valve
Brand New
RM 439.02
Was: RM 516.51was - RM 516.51
or Best Offer
RM 90.80 shipping
SEARS 1/2" Calibrated Pressure Relief Valve 25-75 LBS Adjustment
Brand New
RM 183.52
RM 80.73 shipping
R. Conrader Relief Valve CRN 0G06391.2C SRV 390 125 PSI 1/2" NPT (New)
New (Other)
RM 85.17
RM 100.24 shipping
ASIAN SS304 Safety Relief Valve 1/2" BSP MXF Set Pressure 10 bar
Brand New
RM 234.80
or Best Offer
RM 106.73 shipping
Neptune RV-BR 1/2" 50psi Water Relief Valve Pressure Pump BP-PVC/RV PVC/RV-BR
New (Other)
RM 138.74
or Best Offer
RM 81.96 shipping
Only 1 left!
AQUATROL INC RELIEF VALVE 69A1A1M2U1 1/2" MNPT X 1/2" FNPT 65 PSIG,14 GPM,BRASS
New (Other)
RM 486.67
or Best Offer
RM 140.58 shipping
Farris Engineering 1875-PKD Pressure Relief Valve, 150PSI, 8.6GPM, 1/2" NPT
New (Other)
RM 74.28
or Best Offer
RM 702.03 shipping
Kunkle 0020-C02-MC Pressure Relief Safety Valve 1/2" Set 30PSIG Capacity 5.1 GPM
New (Other) · Kunkle
RM 853.76
or Best Offer
RM 1,799.98 shipping
*NEW* Leser 4394.2894 Safety Pressure Relief Valve G1/2" 58Psi 4Bar + Warranty!
New (Other)
RM 3,201.75
or Best Offer
RM 269.08 shipping
Liquiflo RV1000-HP High Pressure 316 Stainless Relief Valve
New (Other)
RM 1,728.95
RM 271.55 shipping
Superior Sherwood 3020C-650 1/2" NPT x 5/8" Flare Safety Pressure Relief Valve
New (Other)
RM 426.90
or Best Offer
RM 87.90 shipping
NEW Watts 1/2 LF111-125 brass pressure relief valve lead free 1/2" 0121741
Brand New
RM 341.31
RM 118.89 shipping
ASIAN SS304 Safety Relief Valve 1/2" BSP MXF Set Pressure 30 bar
Brand New
RM 277.49
or Best Offer
RM 106.73 shipping
CDI SF50-1/2 Air Pressure Relief Valve, 150PSI, 1/2" NPT, 274SCFM
New (Other)
RM 74.28
or Best Offer
RM 535.90 shipping
Kunkle 140-C01-ME Relief Valve 10.0 gpm 150 psi 1/2in Npt - 140-1/2
New (Other) · Kunkle
RM 640.35
RM 252.43 shipping
Flow Safe 3750 psi 1/2" NPT Pressure relief valve removed working
Pre-Owned
RM 320.18
or Best Offer
RM 125.72 shipping
Watts LF111L125 1/2 Inch Lead Free Pressure Relief Valve
New (Other)
RM 271.29
RM 85.85 shipping
Altecnic Caleffi Pressure Relief Valve 1/2" Female 3 Bar 311430
Brand New · Caleffi
RM 56.10
RM 237.59 shipping
Watts 1/2" Pressure Relief Valve 147 PSI 210°F Brass V3 6212 USA New
New (Other) · Watts
RM 170.72
or Best Offer
RM 162.65 shipping
Apollo Valve 10-512 Series Brass Safety Relief Valve, ASME Steam, 50 psi Set...
Brand New
RM 636.08
RM 117.91 shipping
Only 1 left!
Sears 75 psi Well Water Pump Safety Pressure Relief Valve 1/2" Male Inlet USA
Brand New
RM 170.72
or Best Offer
RM 82.90 shipping
1/2" Brass Pressure Relief Valve (75 Psi Set Relief) ProPlumber PPRV50NL-X
New (Other)
RM 81.07
RM 77.70 shipping
SPENCE 0031DCA- LAS STEAM RELIEF VALVE Used 100psi
Pre-Owned
RM 352.88
RM 135.20 shipping
Only 1 left!
Fisher Controls Stop Relief Valve Type 98 H-50
Pre-Owned
RM 1,062.98
RM 162.14 shipping
Zurn Pressure Relief Valve 12-P1550XL-100, 1/2" NPT, Cast Bronze, 75 to 100 PSI
Brand New
RM 77.27
RM 77.57 shipping
1/2" Lead Free Calibrated Adjustable Pressure Relief Valve 50-175Psi
Brand New
RM 279.62
RM 106.81 shipping
Only 3 left
Cash ACME NCLX-1 150 psi Pressure Relief Valve w/ Test Lever
Brand New
RM 88.71
or Best Offer
RM 124.83 shipping
Dresser 1990C-1-31 1/2" Consolidated Safety Relief Valve , Steel 140PSI 34GPM
Refurbished
RM 320.18
RM 441.16 shipping

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

Shop by category

118 results

Apollo Valves 1-512-B30 1/2" Inlet, 1/2" Outlet, ASME Safety Valve 30 Max psi,

HYDROSEAL 3CRV3LN/G5 SS CF8M Safety Relief Valve 1/2" NPT 2400 psi 2947 scfm

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

ECON® Spring-loaded safety valve fig. 1515 steel low-lifting G1/2" MXF 11.5 bar

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

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

CLA VAL CRL Relief Pilot 20-200PSI SSTL Body 7922302A

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

HENRY PRESSURE RELIEF VALVE 5601 / 5601 SIZE 1/2 PSI 150

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

Niezgodka Type 10.2 Stainless Steel Safety Relief Valve TUV-SV-09-847 G 1/2"

ZURN Pressure Relief Valve 12-P1520XL-100 1/2 MPT X 1/2 FPT New

FISHER CONTROLS REGULATOR TYPE 98-H-50 STOP RELIEF VALVE (B340)

Endeavour HI5SS-801-003 SS High Pressure Safety Release Valve 1/2" MWP 6500 psi

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

Circle Seal Controls 532T1-4M Popoff Relief Valve 316 SS 1/2" 90PSI -20 to 400F

MECLINE VRT100-330 Unloader Valve

WATTS PRESSURE RELIEF VALVE SERIES 53/530 - Model Number - 1X624A

AGF - AGF600 - 1/2" Thermal Expansion Relief Valve - 175 psi

1/2" EXPANSION RELIEF VALVE

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

VYC 685-ES-015-1/2"-650 Safety Relief Valve - Spring Loading

New NIB PLAST-O-MATIC RVDTM050T-PV Adjustable Relief Valve 1/2 In 100 psi

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

WATTS FP53L NOS Thermal Expansion Relief Valve 175 PSI

Spence Regulators 0031-HGA-150 1.5" 150psi Steam Relief Valve 6477psi per Hour

Prince double relief valve DRV-4NHNH-18-18.1800 psi @10 GPM. 1/2 in. ports.

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

Ratermann Pressure Relief Valve Assembly 1/2" NPT Inlet & Outlet 300 PSI

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

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

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

Zurn 12-P1500XL - 1/2" Pressure Relief Valve

SEARS 1/2" Calibrated Pressure Relief Valve 25-75 LBS Adjustment

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

ASIAN SS304 Safety Relief Valve 1/2" BSP MXF Set Pressure 10 bar

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

AQUATROL INC RELIEF VALVE 69A1A1M2U1 1/2" MNPT X 1/2" FNPT 65 PSIG,14 GPM,BRASS

Farris Engineering 1875-PKD Pressure Relief Valve, 150PSI, 8.6GPM, 1/2" NPT

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

*NEW* Leser 4394.2894 Safety Pressure Relief Valve G1/2" 58Psi 4Bar + Warranty!

Liquiflo RV1000-HP High Pressure 316 Stainless Relief Valve

Superior Sherwood 3020C-650 1/2" NPT x 5/8" Flare Safety Pressure Relief Valve

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

ASIAN SS304 Safety Relief Valve 1/2" BSP MXF Set Pressure 30 bar

CDI SF50-1/2 Air Pressure Relief Valve, 150PSI, 1/2" NPT, 274SCFM

Kunkle 140-C01-ME Relief Valve 10.0 gpm 150 psi 1/2in Npt - 140-1/2

Flow Safe 3750 psi 1/2" NPT Pressure relief valve removed working

Watts LF111L125 1/2 Inch Lead Free Pressure Relief Valve

Altecnic Caleffi Pressure Relief Valve 1/2" Female 3 Bar 311430

Watts 1/2" Pressure Relief Valve 147 PSI 210°F Brass V3 6212 USA New

Apollo Valve 10-512 Series Brass Safety Relief Valve, ASME Steam, 50 psi Set...

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

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

SPENCE 0031DCA- LAS STEAM RELIEF VALVE Used 100psi

Fisher Controls Stop Relief Valve Type 98 H-50

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

1/2" Lead Free Calibrated Adjustable Pressure Relief Valve 50-175Psi

Cash ACME NCLX-1 150 psi Pressure Relief Valve w/ Test Lever

Dresser 1990C-1-31 1/2" Consolidated Safety Relief Valve , Steel 140PSI 34GPM

NEW Leser 4394.2894 Safety Pressure Relief Valve G1/2" 58Psi 4Bar + Warranty!