Kunkle Valves
ASME Steam Service
Model 6252 & 6254
Service: ASME Section I, ASME Section IV, ASME Section VIII
Pressure Range: 15 to 250 psig
Temperature Range: -20 to 406 deg F
Sizes: 1-1/2” to 6”
Description: Heavy duty construction of cast iron with stainless steel trim and semi-nozzle
Note: 6254 is for ASME Section IV and is set at 15 psig only.
Model 300/600
Service: AMSE Section I, ASME Section VIII
Pressure Range: 15 to 825 psig
Temperature Range: -20 to 1000 deg F
Sizes: 1-1/4” to 6”
Description: Heavy duty construction of cast steel with stainless steel trim and full nozzle. Model 300 have a 300# ANSI inlet flange and a 150# ANSI flange outlet. Model 600 have a 600# ANSI inlet flange and a 150# ANSI flange outlet.
6000 Family
Service: ASME Section I, ASME Section IV, ASME Section VIII
Pressure Range: 15 to 300 psig
Temperature Range: -20 to 406 deg F
Sizes: 1/2” to 2-1/2”
Description: Bronze body with various options including brass or stainless steel trim, top outlet, over-sized outlet, o-rings seats, and Teflon inserts.
Model 1 & 2
Service: Section VIII
Pressure Range: 15 to 250 psig
Temperature Range: -60 to 406 deg F
Sizes: 1/2” to 1”
Description: Bronze/Brass construction available as a side outlet model. Optional plating as shown.
260 Family
Service: Section VIII
Pressure Range: 15 to 3300 psig
Temperature Range: -20 to 750 deg F
Sizes: 1/2” to 1”
Description: Available with a carbon steel or stainless steel housing and only available with stainless steel trim. Packed lever not shown.
910 & 911 Family
High-Temp Springs available for temperature requirements that exceed those listed below.
Service: Section VIII
Pressure Range: 15 to 900 psig / Max Pressure 1400psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI flanges.
Models 920, 921 & 927
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Section I
Pressure Range: 15 to 900 psig / Max Pressure 1400psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel body and bonnet with stainless steel internals. For ASME Section I Special Use (High Temp/Hot Water, Forced Flow Steam Generators, Organics)
912 & 913 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Section VIII
Pressure Range: 15 to 300 psig / Max Pressure 1400psi
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
Model 930
Service: Section IV
Pressure Range: 15 psig
Temperature Range: 250 deg F
Sizes: 2”, 2-1/2” and 3”
Description: Cast iron body with bronze/brass trim for ASME Section IV low pressure steam boilers.
ASME Liquid
910 & 911 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Section VIII
Pressure Range: 15 to 900 psig / Pressure 1400psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI flanges.
912 & 913 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Section VIII
Pressure Range: 15 to 300 psi / 1400psi
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
ASME Air
Model 6252
Service: ASME Section VIII
Pressure Range: 15 to 250 psig
Temperature Range: -20 to 406 deg F
Sizes: 1-1/2” to 6”
Description: Heavy duty construction of cast iron with stainless steel trim and semi-nozzle.
Model 300/600
Service: ASME Section VIII
Pressure Range: 15 to 825 psig
Temperature Range: -20 to 1000 deg F
Sizes: 1-1/4” to 6”
Description: Heavy duty construction of cast steel with stainless steel trim and full nozzle. Model 300 have a 300# ANSI inlet flange and a 150# ANSI flange outlet. Model 600 have a 600# ANSI inlet flange and a 150# ANSI flange outlet.
6000 Family
Service: ASME Section VIII
Pressure Range: 15 to 300 psig
Temperature Range: -20 to 406 deg F
Sizes: 1/2” to 2-1/2”
Description: Bronze body with various options including brass or stainless steel trim, top outlet, over-sized outlet, o-rings seats, and Teflon inserts.
260 Family
Service: Section VIII
Pressure Range: 15 to 3300 psig
Temperature Range: -20 to 750 deg F
Sizes: 1/2” to 1”
Description: Available with a carbon steel or stainless steel housing and only available with stainless steel trim. Packed lever not shown.
Model 1 & 2
Service: Section VIII
Pressure Range: 15 to 250 psig
Temperature Range: -60 to 406 deg F
Sizes: 1/2” to 1”
Description: Bronze/Brass construction available as a side outlet model. Optional plating as shown.
910 & 911 Family
High-Temp Springs available for temperature requirements that exceed those listed below.
Service: Section VIII
Pressure Range: 15 to 900 psig / 1400 psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI
912 & 913 Family
High-Temp Springs available for temperature requirements that exceed those listed below.
Service: Section VIII
Pressure Range: 15 to 900 psig / Max Pressure 1400psi
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
Model 30
Service: Section VIII
Pressure Range: 60 to 4000 psig
Temperature Range: -20 to 300 deg F
Sizes: 1/4”
Description: Bronze body with pull ring. Ball material is Torlon.
540 Family
Available with bronze/brass or stainless steel body. Also available with optional materials for the ball seat
Service: Section VIII
Pressure Range: 15 to 400 psig
Temperature Range: -20 to 400 deg F
Sizes: 1/4” & 1/2”
Description: Bronze body with pull ring.
Model 337
Available in stainless steel trim.
Service: Section VIII
Pressure Range: 15 to 60 psig
Temperature Range: -20 to 406 deg F
Sizes: 2”, 2-1/2” & 3”
Description: Cast iron body, bronze/brass trim with pull ring. A high capacity valve safety valve.
Non-Code Steam
Model 6252
For temperature requirements that exceed those listed below.
Service: Non-Code Steam
Pressure Range: 15 to 250 psig
Temperature Range: -20 to 406 deg F
Sizes: 1-1/2” to 6”
Description: Heavy duty construction of cast iron with stainless steel trim and semi-nozzle.
6000 Family
Service: Non-Code Steam
Pressure Range: 15 to 300 psig
Temperature Range: -20 to 406 deg F
Sizes: 1/2” to 2-1/2”
Description: Bronze body with various options including brass or stainless steel trim, top outlet, over-sized outlet, o-rings seats, and Teflon inserts.
260 Family
Service: Non-Code Steam
Pressure Range: 15 to 3300 psig
Temperature Range: -20 to 750 deg F
Sizes: 1/2” to 1”
Description: Available with a carbon steel or stainless steel housing and only available with stainless steel trim. Packed lever not shown.
Model 1 & 2
Service: Non-Code Steam
Pressure Range: 15 to 250 psig
Temperature Range: -60 to 406 deg F
Sizes: 1/2” to 1”
Description: Bronze/Brass construction available as a side outlet model. Optional plating as shown.
910 & 911 Family
Service: Non-Code Steam
Pressure Range: 15 to 900 psig
Temperature Range: 320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI flanges.
912 & 913 Family
Service: Non-Code Steam
Pressure Range: 15 to 300 psig
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
Model 40R & 40RL
Service: Non-Code Steam
Pressure Range: 1 to 400 psig
Temperature Range: -60 to 850 deg F
Sizes: 1/2” & 3/4”
Description: All stainless steel valve to be used as a sentinel valve. Available with or without a test lever.
Non-Code Liquid
260 Family
Service: Non-Code Liquid
Pressure Range: 4 to 3300 psig
Temperature Range: -20 to 750 deg F
Sizes: 1/2” to 1”
Description: Available with a carbon steel or stainless steel housing and only available with stainless steel trim. Packed lever not shown.
910 & 911 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Non-Code Liquid
Pressure Range: 3 to 900 psig / Max Pressure 1400psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI
912 & 913 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Non-Code Liquid
Pressure Range: 3 to 900 psig / Max Pressure 1400psi
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
Model 19, 20, 19M & 20M
Service: Non-Code Liquid
Pressure Range: 3 to 300 psig (19M & 20M set to 500 psig)
Temperature Range: -60 to 406 deg Fbr> Sizes: 1/2” to 3”
Description: The model 20 is shown with a plain cap. The model 19 has a had wheel for adjustability. Available with stainless steel trim
Model 71S, 171 & 171S
Service: Non-Code Liquid
Pressure Range: 1 to 400 (71S 1 to 250 psig)
Temperature Range: -20 to 550 deg F (71S –20 to 406 deg F)
Sizes: 1/2” to 2”
Description: Available with a cast iron, cast steel or stainless steel body. All trim is stainless steel. Optional packed lever is available.
Model 140
Service: Non-Code Liquid
Pressure Range: 10 to 300 psig
Temperature Range: -60 to 406 deg F
Sizes: 3/8” & 1/2”
Description: The model 140 is an all stainless steel relief valve with a low GPM capacity.
Model 218 & 228
Service: Non-Code Liquid (UL and FM approved)
Pressure Range: 0 to 200 psig
Temperature Range: -20 to 406 deg F
Sizes: 3”, 4” & 6”
Description: Both the 218 and the 228 have been approved by UL and FM for fire pump installations. The 218 has a hand wheel for adjustability. Available as threaded, flanged 125# or flanged 250# inlets.
Model 91
Service: Non-Code Liquid
Pressure Range: 5 to 400 psig
Temperature Range: -20 to 406 deg F
Sizes: 1-1/2” to 6”
Description: Cast iron body and bonnet, available with brass or stainless steel trim. Available as threaded, flanged 125# or flanged 250# inlets.
Non-Code Air
Model 6252
Service: Non-Code Air
Pressure Range: 10 to 250 psig
Temperature Range: -20 to 406 deg F
Sizes: 1-1/2” to 6”
Description: Heavy duty construction of cast iron with stainless steel trim and semi-nozzle.
6000 Family
Service: Non-Code Air
Pressure Range: 3 to 300 psig
Temperature Range: -20 to 406 deg F
Sizes: 1/2” to 2-1/2”
Description: Bronze body with various options including brass or stainless steel trim, top outlet, over-sized outlet, o-rings seats, and Teflon inserts.
260 Family
Service: Non-Code Air
Pressure Range: 4 to 3300 psig
Temperature Range: -20 to 750 deg F
Sizes: 1/2” to 1”
Description: Available with a carbon steel or stainless steel housing and only available with stainless steel trim. Packed lever not shown.
Model 1 & 2
Service: Non-Code Air
Pressure Range: 5 to 250 psig
Temperature Range: -60 to 406 deg F
Sizes: 1/2” to 1”
Description: Bronze/Brass construction available as a side outlet model. Optional plating as shown.
910 & 911 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Non-Code Air & Vacuum
Pressure Range: 3 to 900 psig / Max Pressure 1400psi
Temperature Range: -320 to 800 deg F
Sizes: 1/2” to 2”
Description: Cast steel or stainless steel body and bonnet with stainless steel internals. Available with soft seat o-rings and with a plain lever or packed test lever and ANSI flanges.
912 & 913 Family
High-Temp Springs available for temperature requirements that exceed those listed below
Service: Non-Code Air & Vacuum
Pressure Range: 3 to 900 psig / Max Pressure 1400psi
Temperature Range: -20 to 425 deg F
Sizes: 1/2” to 2”
Description: Bronze body, brass bonnet. Available with brass or stainless steel nozzle. Options include open lever, packed lever, soft seat o-rings.
540 Family
Service: Non-Code Air
Pressure Range: 3 to 400 psig
Temperature Range: -20 to 400 deg F
Sizes: 1/4” & 1/2”
Description: Bronze body with pull ring.
Model 337
Service: Non-Code Air
Pressure Range: 1 to 60 psig
Temperature Range: -20 to 406 deg F
Sizes: 2”, 2-1/2” & 3”
Description: Cast iron body, bronze/brass trim with pull ring. A high capacity valve safety valve.
Model 215
Service: Vacuum
Pressure Range: 2 to 29 inHG
Temperature Range: -20 to 406 deg F
Sizes: 2”, 2-1/2” & 3”
Description: Cast iron body, bronze/brass for high capacity relief.
Valve Selector
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