Product Overview

ManualsBrandsApollo Valves ManualsApollo 16-501 By-Pass Relief Valves1/2" MNPT x 1/2" FNPT Bronze Adjustable Relief Valve w/ Nitrile Disc & Seat (50-250 psi)

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