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Text version of the page
4 Customer Service 1-704-841-6000
Pressure Relief Valve Selection Chart
Model Material Inlet Sizes Inlet Sizes Connections CE/PED Set Pressures Set Pressures Temperature Temperature
Body / Trim Min / Max, in. Min / Max, mm. NPT Flanged Available Min / Max, PSIG Min / Max, barg Max, °F Max, °C
ASME Section I - Steam Power Boilers
19M Bronze / Brass 1/2 - 2 1/2 DN 15 - 65 X X 15 - 250 1.0 - 17.2 406°F 207.7°C
19K Bronze / Brass 1/2 - 2 1/2 DN 15 - 65 X X 15 - 250 1.0 - 17.2 406°F 207.7°C
19L Bronze / Stainless 1/2 - 2 1/2 DN 15 - 65 X X 15 - 250 1.0 - 17.2 406°F 207.7°C
19S Bronze / Stainless 1/2 - 2 1/2 DN 15 - 65 X X 15 - 300 1.0 - 20.7 422°F 216.7°C
29 Bronze / Brass 3/8 - 1 1/4 DN 10 - 32 X X 30 - 200 2.0 - 13.8 406°F 207.7°C
119 Cast Iron / Stainless 1-1/2 - 6 DN 40 - 150 X X X 15 - 250 1.0 - 17.2 450°F 232.2°C
ASME Section IV - Low Pressure Steam Heating Boilers
12 Bronze / Brass 2 - 3 DN 50 - 80 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-101 Bronze / Brass 3/4 DN 20 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-202 Bronze / Brass 1 DN 25 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-211 Bronze / Brass 3/4 DN 20 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-213 Bronze / Brass 1-1/4 DN 32 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-214 Bronze / Brass 1-1/2 DN 40 X 5 - 15 0.34 - 1.0 250°F 121.1°C
13-510 Bronze / Brass 3/4 DN 20 X 5 - 15 0.34 - 1.0 250°F 121.1°C
14-200 Bronze / Brass 2 - 3 DN 50 - 80 X 5 - 15 0.34 - 1.0 250°F 121.1°C
ASME Section IV - Hot Water Heating & Supply Boilers
10-100 Bronze / Brass 3/4 DN 20 X 20 - 65 1.4 - 4.5 250°F 121.1°C
10-300 Bronze / Brass 3/4 DN 20 X 20 - 65 1.4 - 4.5 250°F 121.1°C
10-400 Bronze / Brass 3/4 DN 20 X 30 2.0 250°F 121.1°C
10-410 Bronze / Brass 3/4 DN 20 X 20 - 80 1.4 - 5.5 250°F 121.1°C
10-600, 10-610 Bronze / Brass 3/4 - 2 DN 20 - 50 X X 15 - 160 1.0 - 11.0 250°F 121.1°C
10-624, 10-634 Bronze / Brass 3/4 DN 20 X 30 - 150 2.0 - 10.3 250°F 121.1°C
17-401 Bronze / Brass 1/2 DN 15 X 75 - 160 5.2 - 11.0 250°F 121.1°C
17-402 Bronze / Brass 3/4 DN 20 X 75 - 150 5.2 - 10.3 250°F 121.1°C
18C-400 Bronze / Brass 1/2 - 3/4 DN 15 - 20 X 125 - 175 8.61 - 12.1 210°F 98.9°C
18-500 Bronze / Stainless 3/4 - 2 DN 20 - 50 X 75 - 150 5.2 - 10.3 210°F 98.9°C
ASME Section VIII Air / Gases
15 Brass 1/4 - 1 DN 8 - 25 X X 15 - 250 1.0 - 17.2 325°F 162.8°C
19M Bronze / Brass 1/2 - 2-1/2 DN 15 - 65 X X 8 - 300 0.55 - 20.7 406°F 207.7°C
19K Bronze / Brass 1/2 - 2-1/2 DN 15 - 65 X X 15 - 300 1.0 - 20.7 406°F 207.7°C
19L Bronze / Stainless 1/2 - 2-1/2 DN 15 - 65 X X 15 - 300 1.0 - 20.7 406°F 207.7°C
19S Bronze / Stainless 1/2 - 2-1/2 DN 15 - 65 X X 8 - 300 0.55 - 20.7 422°F 216.7°C
29 Bronze / Brass 3/8 - 1-1/4 DN 10 - 32 X X 30 - 200 2.0 - 13.8 406°F 207.7°C
119 Cast Iron / Stainless 1-1/2 - 6 DN 40 - 150 X X X 8 - 250 0.55 - 17.2 450°F 232.2°C
510 Bronze / Brass 1/2 - 2 DN 15 - 50 X X 8 - 300 0.55 - 20.7 406°F 207.7°C
520 Bronze / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 422°F 216.7°C
530 Steel / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 800°F 426.7°C
540 Stainless / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 800°F 426.7°C
ASME Section VIII Steam
10-322 Brass 3/4 DN 20 X X 15 - 60 1.0 - 4.1 325°F 162.8°C
10-512 Brass 1/2 DN 15 X X 9 - 60 0.62 - 4.1 325°F 162.8°C
19M Bronze / Brass 1/2 - 2-1/2 DN 15 - 65 X X 8 - 250 0.55 - 17.2 406°F 207.7°C
19K Bronze / Brass 1/2 - 2-1/2 DN 15 - 65 X X 15 - 250 1.0 - 17.2 406°F 207.7°C
19L Bronze / Stainless 1/2 - 2-1/2 DN 15 - 65 X X 15 - 250 1.0 - 17.2 406°F 207.7°C
19S Bronze / Stainless 1/2 - 2-1/2 DN 15 - 65 X X 8 - 300 0.55 - 20.7 422°F 216.7°C
29 Bronze / Brass 3/8 - 1-1/4 DN 10 - 32 X X 30 - 200 2.0 - 13.8 406°F 207.7°C
119 Cast Iron / Stainless 1-1/2 - 6 DN 40 - 150 X X X 8 - 250 0.55 - 17.2 450°F 232.2°C
510 Bronze / Brass 1/2 - 2 DN 15 - 50 X X 8 - 250 0.55 - 17.2 406°F 207.7°C
520 Bronze / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 300 0.55 - 20.7 422°F 216.7°C
530 Steel / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 900 0.55 - 62.1 800°F 426.7°C
540 Stainless / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 900 0.55 - 62.1 800°F 426.7°C
ASME Section VIII Liquid
510 Bronze / Brass 1/2 - 2 DN 15 - 50 X X 8 - 300 0.55 - 20.7 406°F 207.7°C
520 Bronze / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 422°F 216.7°C
530 CS / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 800°F 426.7°C
540 Stainless / Stainless 1/2 - 2 DN 15 - 50 X X 8 - 1200 0.55 - 82.7 800°F 426.7°C
Non-Code, Vacuum & Miscellaneous Products
14-400, 14-500 Low Pressure Air 2 - 3 DN 50 - 80 X 4 - 22 0.3 - 1.52 400°F 204.4°C
14-600 Vacuum Relief 2 - 3 DN 50 - 80 X 8 - 30 HG 203 - 762 mm. HG 400°F 204.4°C
16-200 Liquids 1/2 DN 15 X 30 - 80 2.1 - 12.4 120°F 48.9°C
16-501 Adj. Liquid Bypass 1/2 DN 15 X 0 - 600 0 - 41.4 200°F 93.3°C
16-503, 16-504 Calibrated Liquid Relief 1/2 - 3/4 DN 15 -20 X 50 - 175 3.4 - 12.1 200°F 93.3°C
Drip Pan Elbows Steam Discharge 3/4 - 8 DN 20 - 200 X X N/A N/A 450°F 232.2°C