Apply to be a TradeMaster!
Filter menu expanded

Filters

453 items
Reset

SORT

Product Availability
–

Show In Stock Only (263)

Brand
–

Apollo Valves (182)
Bell & Gossett (13)
Caleffi (3)
Cash-Acme (47)
McDonnell & Miller (19)
SharkBite (1)
Watts (174)
Webstone (1)
Zurn (13)

Size
–

1/2" (38)
3/4" (192)
1" (112)
1-1/4" (62)
1-1/2" (68)
2" (52)
2-1/2" (17)
3" (2)

Pressure Set Point
–

10 (3)
100 (32)
110 (1)
125 (57)
130 (1)
15 (24)
150 (115)
160 (3)
175 (6)
20 (3)

Capacity (BTU)
–

20,000 - 30,000 (1)
100,000 - 150,000 (3)
200,000 - 250,000 (1)
250,000 - 300,000 (1)
300,000 - 350,000 (1)
400,000 - 500,000 (10)
500,000 - 600,000 (16)
600,000 - 700,000 (6)
700,000 - 800,000 (8)
800,000 - 900,000 (8)

Review Score
–

(149)
(12)
(1)
(1)

Price Range
–

$10 to $15 (3)
$15 to $20 (3)
$20 to $25 (5)
$25 to $30 (3)
$35 to $40 (8)
$40 to $45 (10)
$45 to $50 (6)
$50 to $60 (9)
$60 to $70 (13)
$70 to $80 (7)

Boiler Pressure Relief Valves

453 items
Grid
List
Compare
Product Image of 1-1/2" 3301-50 4900K Relief Valve
1-1/2" 3301-50 4900K Relief Valve
SKU: 110082
Bell & Gossett
SKU: 110082
Brand: Bell & Gossett
$1,593.28 each
In Stock
Get 2 by Tue, Oct 6
In Stock
Get 2 by Tue, Oct 6
Compare
Product Image of 3/4" FNPT x 1" FNPT RVW10 710,000 BTU Hot Water Relief Valve, 30 PSIG (Brass Finish)
3/4" FNPT x 1" FNPT RVW10 710,000 BTU Hot Water Relief Valve, 30 PSIG (Brass Finish)
SKU: 1010205
Apollo Valves
SKU: 1010205
Brand: Apollo Valves
$90.14 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 3/4" x 1" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
3/4" x 1" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
SKU: F382264
Watts
SKU: F382264
Brand: Watts
(1)
$350.66 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1-1/4" RVW60 8,725,000 BTU Capacity Bronze Relief Valve, 150 psi
1-1/4" RVW60 8,725,000 BTU Capacity Bronze Relief Valve, 150 psi
SKU: 1060634
Apollo Valves
SKU: 1060634
Brand: Apollo Valves
$452.01 each
In Stock
Get 1 by Wed, Oct 7
In Stock
Get 1 by Wed, Oct 7
Compare
Product Image of 1-1/2" FNPT x 2" FNPT RVW61 11,792,000 BTU Bronze Hot Water Relief Valve (125 psi)
1-1/2" FNPT x 2" FNPT RVW61 11,792,000 BTU Bronze Hot Water Relief Valve (125 psi)
SKU: 1061725
Apollo Valves
SKU: 1061725
Brand: Apollo Valves
$766.00 each
In Stock
Get 3 by Wed, Oct 7
In Stock
Get 3 by Wed, Oct 7
Compare
Product Image of 1-1/4" FNPT x 1-1/2" FNPT RVW61 7,101,000 BTU Bronze Hot Water Relief Valve (100 psi)
1-1/4" FNPT x 1-1/2" FNPT RVW61 7,101,000 BTU Bronze Hot Water Relief Valve (100 psi)
SKU: 1061620
Apollo Valves
SKU: 1061620
Brand: Apollo Valves
$589.09 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 3/4" FNPT x 1" FNPT RVW10 1,035,000 BTU Hot Water Relief Valve, 50 PSIG (Brass Finish)
3/4" FNPT x 1" FNPT RVW10 1,035,000 BTU Hot Water Relief Valve, 50 PSIG (Brass Finish)
SKU: 1010210
Apollo Valves
SKU: 1010210
Brand: Apollo Valves
$108.41 each
In Stock
Get 3 by Wed, Oct 7
In Stock
Get 3 by Wed, Oct 7
Compare
Product Image of 1-1/2" RVW60 3,151,000 BTU Capacity Bronze Relief Valve, 30 psi
1-1/2" RVW60 3,151,000 BTU Capacity Bronze Relief Valve, 30 psi
SKU: 1060705
Apollo Valves
SKU: 1060705
Brand: Apollo Valves
$643.18 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 1" FNPT RVW60 3,500,000 BTU Bronze Hot Water Relief Valve, 100 PSI
1" FNPT RVW60 3,500,000 BTU Bronze Hot Water Relief Valve, 100 PSI
SKU: 1060520
Apollo Valves
SKU: 1060520
Brand: Apollo Valves
$293.33 each
In Stock
Get 1 by Fri, Oct 9
In Stock
Get 1 by Fri, Oct 9
Compare
Product Image of 1" x 1-1/4" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (40 psi)
1" x 1-1/4" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (40 psi)
SKU: F382589
Watts
SKU: F382589
Brand: Watts
$467.45 each
In Stock
Get 2 by Wed, Oct 7
In Stock
Get 2 by Wed, Oct 7
Compare
Product Image of 1/2" MNPT x 1/2" FNPT RVS52 151 LBS/HR Steam Safety Relief Valve, Polished Chrome (15 psi)
1/2" MNPT x 1/2" FNPT RVS52 151 LBS/HR Steam Safety Relief Valve, Polished Chrome (15 psi)
SKU: 10512P15
Apollo Valves
SKU: 10512P15
Brand: Apollo Valves
$84.59 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" MNPT x 3/4" FNPT RVS13 475 LBS/HR Low Pressure Steam Safety Relief Valve (8 psi)i
3/4" MNPT x 3/4" FNPT RVS13 475 LBS/HR Low Pressure Steam Safety Relief Valve (8 psi)i
SKU: 13211B08
Apollo Valves
SKU: 13211B08
Brand: Apollo Valves
$127.62 each
In Stock
Get 2 by Tue, Oct 6
In Stock
Get 2 by Tue, Oct 6
Compare
Product Image of 1/2" LF1XL-4 T&P Relief Valve, Lead Free (150 psi)
1/2" LF1XL-4 T&P Relief Valve, Lead Free (150 psi)
SKU: 0121325
Watts
SKU: 0121325
Brand: Watts
(12)
$81.86 each
In Stock
Get 34 by Tue, Oct 6
In Stock
Get 34 by Tue, Oct 6
Compare
Product Image of 1-1/4" FNPT x 1-1/2" FNPT RVW61 3,343,000 BTU Bronze Hot Water Relief Valve (40 psi)
1-1/4" FNPT x 1-1/2" FNPT RVW61 3,343,000 BTU Bronze Hot Water Relief Valve (40 psi)
SKU: 1061607
Apollo Valves
SKU: 1061607
Brand: Apollo Valves
$529.44 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1-1/2" FNPT x 2" FNPT RVW61 4,974,000 BTU Bronze Hot Water Relief Valve (45 psi)
1-1/2" FNPT x 2" FNPT RVW61 4,974,000 BTU Bronze Hot Water Relief Valve (45 psi)
SKU: 1061709
Apollo Valves
SKU: 1061709
Brand: Apollo Valves
$752.95 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" MNPT x Top RVS13 333 LBS/HR Low Pressure Steam Safety Valve (5 psi)
3/4" MNPT x Top RVS13 333 LBS/HR Low Pressure Steam Safety Valve (5 psi)
SKU: 13101B05
Apollo Valves
SKU: 13101B05
Brand: Apollo Valves
$80.56 each
In Stock
Get 3 by Thu, Oct 8
In Stock
Get 3 by Thu, Oct 8
Compare
Product Image of 19 Series 2" MNPT x 2-1/2" FNPT 10,864 LBS/HR Safety Relief Valve (150 psi)
19 Series 2" MNPT x 2-1/2" FNPT 10,864 LBS/HR Safety Relief Valve (150 psi)
SKU: 19KJHA150
Apollo Valves
SKU: 19KJHA150
Brand: Apollo Valves
$904.42 each
In Stock
Get 3 by Tue, Oct 6
In Stock
Get 3 by Tue, Oct 6
Compare
Product Image of 19 Series 1-1/4" MNPT x 1-1/2" FNPT 4,240 LBS/HR Safety Relief Valve, Brass Trim/Metal Seat (150 psi)
19 Series 1-1/4" MNPT x 1-1/2" FNPT 4,240 LBS/HR Safety Relief Valve, Brass Trim/Metal Seat (150 psi)
SKU: 19MGFA150
Apollo Valves
SKU: 19MGFA150
Brand: Apollo Valves
$531.63 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 100XL8-100210 3/4" Temperature & Pressure Relief Valve
100XL8-100210 3/4" Temperature & Pressure Relief Valve
SKU: 0066123
Watts
SKU: 0066123
Brand: Watts
$118.94 each
Backorder
Get it by Tue, Oct 27 - Tue, Nov 3
Backorder
Get it by Tue, Oct 27 - Tue, Nov 3
Compare
Product Image of 3" MNPT x 3" FNPT RVS14 6843 BTU High Capacity Low Pressure Safety Valve (15 psi)
3" MNPT x 3" FNPT RVS14 6843 BTU High Capacity Low Pressure Safety Valve (15 psi)
SKU: 1420708
Apollo Valves
SKU: 1420708
Brand: Apollo Valves
$1,199.99 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 3/4" 140X-5 Relief Valve w/ Extension Thermostat & Flood Sensor Connectivity (150 psi)
3/4" 140X-5 Relief Valve w/ Extension Thermostat & Flood Sensor Connectivity (150 psi)
SKU: F257564
Watts
SKU: F257564
Brand: Watts
(3)
$562.62 each
In Stock
Get 5 by Wed, Oct 7 - Thu, Oct 8
In Stock
Get 5 by Wed, Oct 7 - Thu, Oct 8
Compare
Product Image of 2" 174A Relief Valve w/ Flood Sensor Connectivity (80 psi)
2" 174A Relief Valve w/ Flood Sensor Connectivity (80 psi)
SKU: F278332
Watts
SKU: F278332
Brand: Watts
$711.33 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1" FNPT Bronze Hot Water Relief Valve, 60 PSIG
1" FNPT Bronze Hot Water Relief Valve, 60 PSIG
SKU: 1060512
Apollo Valves
SKU: 1060512
Brand: Apollo Valves
$373.31 each
In Stock
Get 4 by Tue, Oct 6
In Stock
Get 4 by Tue, Oct 6
Compare
Product Image of 1-1/2" x 2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
1-1/2" x 2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
SKU: F383742
Watts
SKU: F383742
Brand: Watts
(1)
$694.36 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1-1/4" FNPT RVW60 3,198,000 BTU Bronze Hot Water Relief Valve (60 psi)
1-1/4" FNPT RVW60 3,198,000 BTU Bronze Hot Water Relief Valve (60 psi)
SKU: 1060612
Apollo Valves
SKU: 1060612
Brand: Apollo Valves
$682.48 each
In Stock
Get 6 by Wed, Oct 7
In Stock
Get 6 by Wed, Oct 7
Compare
Product Image of T&P Relief Valve, MNPT x FNPT, 4" Probe, Set at 75
T&P Relief Valve, MNPT x FNPT, 4" Probe, Set at 75
SKU: TP1100A-4C-75C
Zurn
SKU: TP1100A-4C-75C
Brand: Zurn
(1)
$44.99 each
In Stock
Get 2 by Wed, Oct 7
In Stock
Get 2 by Wed, Oct 7
Compare
Product Image of 1" 1170-100, 3,060,000 BTU Capacity Relief Valve
1" 1170-100, 3,060,000 BTU Capacity Relief Valve
SKU: 110134
Bell & Gossett
SKU: 110134
Brand: Bell & Gossett
$288.83 each
In Stock
Get 2 by Tue, Oct 6
In Stock
Get 2 by Tue, Oct 6
Compare
Product Image of 1" x 1-1/4" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
1" x 1-1/4" Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (45 psi)
SKU: F382818
Watts
SKU: F382818
Brand: Watts
(1)
$339.74 each
In Stock
Get 5 by Tue, Oct 6
In Stock
Get 5 by Tue, Oct 6
Compare
Product Image of 1/2" LF53-125 Poppet Type Lead Free Pressure Relief Valve (125 psi)
1/2" LF53-125 Poppet Type Lead Free Pressure Relief Valve (125 psi)
SKU: 0121436
Watts
SKU: 0121436
Brand: Watts
$146.78 each
In Stock
Get 2 by Tue, Oct 6
In Stock
Get 2 by Tue, Oct 6
Compare
Product Image of 1-1/4" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (125 psi)
1-1/4" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (125 psi)
SKU: F121524
Watts
SKU: F121524
Brand: Watts
(5)
$1,757.18 each
In Stock
Get 1 by Wed, Oct 7
In Stock
Get 1 by Wed, Oct 7
Compare
Product Image of 1-1/4" FNPT RVW60 6,055,000 BTU Bronze Hot Water Relief Valve (100 psi)
1-1/4" FNPT RVW60 6,055,000 BTU Bronze Hot Water Relief Valve (100 psi)
SKU: 1060620
Apollo Valves
SKU: 1060620
Brand: Apollo Valves
$557.34 each
In Stock
Get 3 by Wed, Oct 7
In Stock
Get 3 by Wed, Oct 7
Compare
Product Image of 1" LF40L-2 Lead Free T&P Relief Valve w/ Flood Sensor Connectivity (150 psi)
1" LF40L-2 Lead Free T&P Relief Valve w/ Flood Sensor Connectivity (150 psi)
SKU: F121409
Watts
SKU: F121409
Brand: Watts
$600.64 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (100 psi)
1" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (100 psi)
SKU: F121499
Watts
SKU: F121499
Brand: Watts
$910.50 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1-1/4" 174A ASME Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (60 psi)
1-1/4" 174A ASME Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (60 psi)
SKU: F275826
Watts
SKU: F275826
Brand: Watts
$978.44 each
In Stock
Get 2 by Tue, Oct 6
In Stock
Get 2 by Tue, Oct 6
Compare
Product Image of T&P Relief Valve, MNPT x FNPT, 3" Probe, Set at 150
T&P Relief Valve, MNPT x FNPT, 3" Probe, Set at 150
SKU: TP1100AE-3C-150C
Zurn
SKU: TP1100AE-3C-150C
Brand: Zurn
$47.99 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 3/4" MNPT x 3/4" FNPT RVS13 407 LBS/HR Low Pressure Steam Safety Relief Valve (10 psi)
3/4" MNPT x 3/4" FNPT RVS13 407 LBS/HR Low Pressure Steam Safety Relief Valve (10 psi)
SKU: 13511B10
Apollo Valves
SKU: 13511B10
Brand: Apollo Valves
$44.05 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 1" FNPT x 1-1/4" FNPT RVW61 3,381,000 BTU Bronze Hot Water Relief Valve (80 psi)
1" FNPT x 1-1/4" FNPT RVW61 3,381,000 BTU Bronze Hot Water Relief Valve (80 psi)
SKU: 1061516
Apollo Valves
SKU: 1061516
Brand: Apollo Valves
$424.18 each
In Stock
Get 2 by Wed, Oct 7
In Stock
Get 2 by Wed, Oct 7
Compare
Product Image of 2" x 2-1/2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (36 psi)
2" x 2-1/2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (36 psi)
SKU: F384044
Watts
SKU: F384044
Brand: Watts
$1,070.19 each
In Stock
Get 1 by Thu, Oct 8
In Stock
Get 1 by Thu, Oct 8
Compare
Product Image of 1" 174A Relief Valve w/ Flood Sensor Connectivity (45 psi)
1" 174A Relief Valve w/ Flood Sensor Connectivity (45 psi)
SKU: F275024
Watts
SKU: F275024
Brand: Watts
(3)
$647.15 each
In Stock
Get 2 by Wed, Oct 7 - Thu, Oct 8
In Stock
Get 2 by Wed, Oct 7 - Thu, Oct 8
Compare
Product Image of 2" x 2-1/2" F-95 Commercial T&P Relief Valve w/ Lever, 50 PSI (Iron Body)
2" x 2-1/2" F-95 Commercial T&P Relief Valve w/ Lever, 50 PSI (Iron Body)
SKU: 19505-0050
Cash-Acme
SKU: 19505-0050
Brand: Cash-Acme
(1)
$836.25 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (60 psi)
3/4" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (60 psi)
SKU: F121467
Watts
SKU: F121467
Brand: Watts
$376.69 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" 40XL-5 T&P Relief Valve w/ Flood Sensor Connectivity (125 psi)
3/4" 40XL-5 T&P Relief Valve w/ Flood Sensor Connectivity (125 psi)
SKU: F156481
Watts
SKU: F156481
Brand: Watts
$401.07 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" FNPT x 1" FNPT RVW61 635,000 BTU Bronze Hot Water Relief Valve (15 psi)
3/4" FNPT x 1" FNPT RVW61 635,000 BTU Bronze Hot Water Relief Valve (15 psi)
SKU: 1061401
Apollo Valves
SKU: 1061401
Brand: Apollo Valves
$232.65 each
In Stock
Get 1 by Wed, Oct 7
In Stock
Get 1 by Wed, Oct 7
Compare
Product Image of 1/2" LF53L-175 Poppet Type Lead Free Pressure Relief Valve (175 psi)
1/2" LF53L-175 Poppet Type Lead Free Pressure Relief Valve (175 psi)
SKU: 0121444
Watts
SKU: 0121444
Brand: Watts
$171.79 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" RVW60 Bronze Relief Valve, 20 psi
3/4" RVW60 Bronze Relief Valve, 20 psi
SKU: 1060402
Apollo Valves
SKU: 1060402
Brand: Apollo Valves
$157.85 each
In Stock
Get 1 by Tue, Oct 6
In Stock
Get 1 by Tue, Oct 6
Compare
Product Image of 3/4" LF140S3 Lead Free Relief Valve w/ Flood Sensor Connectivity (150 psi)
3/4" LF140S3 Lead Free Relief Valve w/ Flood Sensor Connectivity (150 psi)
SKU: F121449
Watts
SKU: F121449
Brand: Watts
$617.30 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 2" x 2-1/2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (40 psi)
2" x 2-1/2" Model 740 Boiler Pressure Relief Valve w/ Flood Sensor Connectivity (40 psi)
SKU: F384240
Watts
SKU: F384240
Brand: Watts
(19)
$942.14 each
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Backorder
Get it by Tue, Nov 3 - Wed, Dec 2
Compare
Product Image of 3/4" MIP Commercial Grade Pressure Relief Valve & Close Nipple
3/4" MIP Commercial Grade Pressure Relief Valve & Close Nipple
SKU: H-20723-CN
Webstone
SKU: H-20723-CN
Brand: Webstone
$85.15 each
In Stock
Get 1 by Thu, Oct 8 - Fri, Oct 9
In Stock
Get 1 by Thu, Oct 8 - Fri, Oct 9
×

Video