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KUNKLE VALVE SELECTION GUIDE - AVAILABLE OPTIONS
See below for Kunkle Safety and Relief Valve selection guides for use in Steam, Air and Gas, and Liquids. Expand each section below for a detailed look at the available valve options including body material, trim material, connection type, inlet size range, pressure range, and temperature range.
Kunkle Steam Safety Valves
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 300, 600Cast SteelStainless SteelFlanged1-1/4" to 6"15 psig / 1000 psig-20°F / 800°FKunkle 920, 921, 927 (special use - 10% blowdown)Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"15 psig / 1400 psig-20°F / 800°FBronzeBrassNPT1/2" to 2-1/2"3 psig / 250 psig-60°F / 406°FKunkle 6030, 6130, 6230BronzeStainless SteelNPT1/2" to 2-1/2"3 psig / 300 psig-60°F / 425°FIronStainless SteelNPT and Flanged1-1/2" to 6"10 psig / 250 psig-20°F / 406°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 1 and 2BronzeBrassNPT1/2" to 1"5 psig / 250 psig-60°F / 406°FKunkle 264, 265Cast SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 266, 267Stainless SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 300, 600Cast SteelStainless SteelFlanged1-1/4" to 6"15 psig / 1000 psig-20°F / 750°FKunkle 910Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-20°F / 800°FKunkle 911Stainless SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 800°FKunkle 912BronzeBrassNPT1/2" to 2"3 psig / 250 psig-320°F / 406°FKunkle 913BronzeStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 300 psig-320°F / 425°FBronzeBrassNPT1/2" to 2-1/2"3 psig / 250 psig-60°F / 406°FKunkle 6030, 6130, 6230BronzeStainless SteelNPT1/2" to 2-1/2"3 psig / 300 psig-60°F / 425°FKunkle 6254IronStainless SteelNPT and Flanged1-1/2" to 6"10 psig / 250 psig-20°F / 406°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)IronBronzeNPT2" to 3"15 psig only250°F onlyKunkle 6933, 6934BronzeBrassNPT1/2" to 2"15 psig only250°F onlyKunkle 6935BronzeStainless SteelNPT1/2" to 2"15 psig only250°F onlyKunkle 6254IronStainless SteelNPT and Flanged1-1/2" to 6"15 psig only250°F only
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 40R, 40RLStainless SteelStainless SteelNPT1/2" to 3/4"1 psig / 400 psig-60°F / 860°F
*Also see ASME Section VIII and xIII-UV steam valves for non-code steam applications.
*Set pressures less than 15 psig are non-code only.
Kunkle Air / Gas Safety Valves
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 1 and 2BrassBrassNPT1/2" to 1"5 psig / 250 psig-60°F / 406°FKunkle 30BrassBrassNPT1/4"60 psig / 4000 psig20°F / 300°FKunkle 189BronzeStainless SteelNPT1/2" to 3/4"1000 psig / 2500 psig-320°F / 350°FKunkle 264, 265Cast SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 266, 267Stainless SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 300, 600Cast SteelStainless SteelFlanged1-1/4" to 6"15 psig / 1000 psig-20°F / 800°FKunkle 330AluminumStainless SteelNPT (SAE inlet thread available)1/4" to 1/2"1000 psig / 5500 psig-20°F / 185°FKunkle 330S, 333SAluminumStainless SteelNPT (SAE inlet thread available)1/4" to 1/2"1000 psig / 7500 psig-20°F / 185°FIronBronzeNPT2" to 3"1 psig / 60 psig-20°F / 406°FKunkle 338AluminumBrassNPT2"5 psig / 30 psig-30°F / 400°FKunkle 363BronzeStainless SteelNPT1/2" to 3/4"50 psig / 1000 psig-320°F / 350°FKunkle 389Stainless SteelStainless SteelNPT1/2" to 3/4"50 psig / 2500 psig-320°F / 350°FBrassBrassNPT1/4" to 1/2"3 psig / 400 psig-20°F / 400°FKunkle 541 (Buna disc)
Kunkle 542 (Viton disc)Stainless SteelStainless SteelNPT1/4" to 1/2"3 psig / 200 psig-20°F / 300°FKunkle 910, 916 (soft seal)**Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-20°F / 800°FKunkle 911, 917 (soft seal)**Stainless SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 800°FKunkle 912, 918 (soft seal)**BronzeBrassNPT1/2" to 2"3 psig / 300 psig-320°F / 406°FKunkle 913, 919 (soft seal)**BronzeStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 425°FBronzeBrassNPT1/2" to 2-1/2"3 psig / 250 psig-60°F / 406°FKunkle 6030, 6130, 6230BronzeStainless SteelNPT1/2" to 2-1/2"3 psig / 300 psig-60°F / 425°FIronStainless SteelNPT and Flanged1-1/2" to 6"10 psig / 250 psig-20°F / 406°F**Temperature limits of soft seats determine operating limits of valve.
*Also see Section VIII air valves for non-code air/gas applications.ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 230AluminumStainless SteelNPT (SAE inlet thread available)1/4" to 1/2"300 psig / 1500 psig-20°F / 185°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (Hg)Min / Max Temp (deg F)IronBronzeNPT2" to 3"2 Hg / 29 Hg-20°F / 406°FKunkle 910, 916 (soft seat)**Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"6 Hg / 29 Hg-20°F / 800°FKunkle 911, 917 (soft seat)**Stainless SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"6 Hg / 29 Hg-320°F / 800°FKunkle 912, 918 (soft seat)**BronzeBrassNPT1/2" to 2"6 Hg / 29 Hg-320°F / 406°FKunkle 913, 919 (soft seat)**BronzeStainless SteelNPT (standard)
Stainless Steel (optional)1/2" to 2"6 Hg / 29 Hg-320°F / 425°F**Temperature limits of soft seats determine operating limits of valve.
*Set pressures less than 15 psig are non-code only.
Kunkle Liquid Relief Valves
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 928
Kunkle 929Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"15 psig / 1400 psig-20°F / 800°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 537 (soft seat)Iron/BronzeBrassNPT3/4" to 2"15 psig / 160 psig-20°F / 250°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 910 and 916 (soft seal)**Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-20°F / 800°FKunkle 911 and 917 (soft seat) **Stainless SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 800°FKunkle 912 and 918 (soft seat)**BronzeBrassNPT1/2" to 2"3 psig / 300 psig-320°F / 406°FKunkle 913 and 919 (soft seat)**BronzeStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 425°F**Temperature limits of soft seats determine operating limits of valve.
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 19 and Kunkle 20BronzeBronzeNPT (standard)
Flanged (optional)1/2" to 3"1 psig / 300 psig-60°F / 406°FKunkle 19M and 20MBronzeStainless SteelNPT (standard)
Flanged (optional)2-1/2" to 3"1 psig / 500 psig-60°F / 406°FKunkle 71SIronStainless SteelNPT1/2" to 2"1 psig / 250 psig-20°F / 406°FKunkle 171 and 171PCast SteelStainless SteelNPT1/2" to 2"1 psig / 400 psig-20°F / 550°FKunkle 171SStainless SteelStainless SteelNPT1/2" to 2"1 psig / 400 psig-20°F / 550°FKunkle 91IronBronzeNPT and Flanged1-1/2" to 6"5 psig / 400 psig-20°F / 406°FKunkle 218 and 228IronBronzeNPT and Flanged3", 4" and 6"60 psig / 200 psig-20°F / 406°FKunkle 140Stainless SteelStainless SteelNPT3/8" to 1/2"10 psig / 300 psig-60°F / 406°FKunkle 264 and 265Cast SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 266 and 267Stainless SteelStainless SteelNPT1/2" to 1"4 psig / 3300 psig-20°F / 750°FKunkle 910, 916 (soft seat)**Cast SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-20°F / 800°FKunkle 911, 917 (soft seat)**Stainless SteelStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 800°FKunkle 912, 918 (soft seat)**BronzeBrassNPT1/2" to 2"3 psig / 300 psig-320°F / 406°FKunkle 913, 919 (soft seat)**BronzeStainless SteelNPT (standard)
Flanged (optional)1/2" to 2"3 psig / 1400 psig-320°F / 425°F**Temperature limits of soft seats determine operating limits of valve.
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 200ABronzeBrassNPT3/4" to 1-1/2"1 psig / 200 psig-60°F / 406°FKunkle 200HBronzeStainless SteelNPT (standard)
Flanged (optional)3/4" to 2"1 psig / 200 psig-60°F / 406°F
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 218
Kunkle 228IronBronzeNPT and Flanged3", 4" and 6"60 psig / 200 psig-20°F / 406°FKunkle 918 (soft seat)**
FM approved onlyBronzeBrassNPT3/4" to 1"60 psig / 250 psig-20°F / 406°F**Temperature limits of soft seats determine operating limits of valve.
*Set pressures less than 15 psig are non-code only.
Kunkle Drip Pan Elbows
- ModelsBody MaterialTrim MaterialConnection TypeInlet Size Range (in)Min / Max Pressure (psig)Min / Max Temp (deg F)Kunkle 299Ironn/aNPT and Flanged2" to 8"n/a-20°F / 406°F