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ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & C Series (Rack-n-Pinion) Pneumatic Actuator
ST Series Resilient Seated Butterfly Valve with rack and pinion spring return pneumatic actuator
Spring Return		 ST Series Resilient Seated Butterfly Valve with rack and pinion double acting pneumatic actuator
Double Acting		   Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Up to 1 million cycles
  • Extruded aluminum alloy
  • -4°F to 176°F
  • ISO 5211 w/ female drive
  • 1/4" NPT NAMUR air ports
 
Size P series (Scotch Yoke) Pneumatic Actuator
Spring Return Double Acting
80 PSIG 60 PSIG 80 PSIG 60 PSIG
Fail OPEN Fail CLOSED Price Fail OPEN Fail CLOSED Price
2" HSTLBSC8SO HSTLBSC8SC $ undefined HSTLBSC6SO HSTLBSC6SC $ undefined HSTLBSC8D $ undefined HSTLBSC6D $ undefined
2 1/2" ISTLBSC8SO ISTLBSC8SC $ undefined ISTLBSC6SO ISTLBSC6SC $ undefined ISTLBSC8D $ undefined ISTLBSC6D $ undefined
3" JSTLBSC8SO JSTLBSC8SC $ undefined JSTLBSC6SO JSTLBSC6SC $ undefined JSTLBSC8D $ undefined JSTLBSC6D $ undefined
4" KSTLBSC8SO KSTLBSC8SC $ undefined KSTLBSC6SO KSTLBSC6SC $ undefined KSTLBSC8D $ undefined KSTLBSC6D $ undefined
5" LSTLBSC8SO LSTLBSC8SC $ undefined LSTLBSC6SO LSTLBSC6SC $ undefined LSTLBSC8D $ undefined LSTLBSC6D $ undefined
6" MSTLBSC8SO MSTLBSC8SC $ undefined MSTLBSC6SO MSTLBSC6SC $ undefined MSTLBSC8D $ undefined MSTLBSC6D $ undefined
8" NSTLBSC8SO NSTLBSC8SC $ undefined NSTLBSC6SO NSTLBSC6SC $ undefined NSTLBSC8D $ undefined NSTLBSC6D $ undefined
10" OSTLBSC8SO OSTLBSC8SC $ undefined OSTLBSC6SO OSTLBSC6SC $ undefined OSTLBSC8D $ undefined OSTLBSC6D $ undefined
12" PSTLBSC8SO PSTLBSC8SC $ undefined PSTLBSC6SO PSTLBSC6SC $ undefined PSTLBSC8D $ undefined PSTLBSC6D $ undefined
14" QSTLBSC8SO QSTLBSC8SC $ undefined QSTLBSC6SO QSTLBSC6SC $ undefined QSTLBSC8D $ undefined QSTLBSC6D $ undefined
16" RSTLBSC8SO RSTLBSC8SC $ undefined RSTLBSC6SO RSTLBSC6SC $ undefined RSTLBSC8D $ undefined RSTLBSC6D $ undefined
18" SSTLBSC8SO SSTLBSC8SC $ undefined SSTLBSC6SO SSTLBSC6SC $ undefined SSTLBSC8D $ undefined SSTLBSC6D $ undefined
page 1

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & P Series (Scotch Yoke) Pneumatic Actuator
ST Series Resilient Seated Butterfly Valve with rack and pinion spring return pneumatic actuator
Spring Return		 ST Series Resilient Seated Butterfly Valve with rack and pinion double acting pneumatic actuator
Double Acting		   Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • CISQ cerified
  • Up to 1 million cycles
  • Corrosion resistant aluminum
  • -4°F to 176°F
  • ISO 5211 w/ female drive
  • 1/8" G Threads on air ports
    (adapter available to convert to 1/4" NPT NAMUR air ports
    PN: KBNE0015-R $ )
 
Size P series (Scotch Yoke) Pneumatic Actuator
Spring Return Double Acting
80 PSIG 60 PSIG 80 PSIG 60 PSIG
Fail OPEN Fail CLOSED Price Fail OPEN Fail CLOSED Price
2" HSTLBSP8SO HSTLBSP8SC $ undefined HSTLBSP6SO HSTLBSP6SC $ undefined HSTLBSP8D $ undefined HSTLBSP6D $ undefined
2 1/2" ISTLBSP8SO ISTLBSP8SC $ undefined ISTLBSP6SO ISTLBSP6SC $ undefined ISTLBSP8D $ undefined ISTLBSP6D $ undefined
3" JSTLBSP8SO JSTLBSP8SC $ undefined JSTLBSP6SO JSTLBSP6SC $ undefined JSTLBSP8D $ undefined JSTLBSP6D $ undefined
4" KSTLBSP8SO KSTLBSP8SC $ undefined KSTLBSP6SO KSTLBSP6SC $ undefined KSTLBSP8D $ undefined KSTLBSP6D $ undefined
5" LSTLBSP8SO LSTLBSP8SC $ undefined LSTLBSP6SO LSTLBSP6SC $ undefined LSTLBSP8D $ undefined LSTLBSP6D $ undefined
6" MSTLBSP8SO MSTLBSP8SC $ undefined MSTLBSP6SO MSTLBSP6SC $ undefined MSTLBSP8D $ undefined MSTLBSP6D $ undefined
8" NSTLBSP8SO NSTLBSP8SC $ undefined NSTLBSP6SO NSTLBSP6SC $ undefined NSTLBSP8D $ undefined NSTLBSP6D $ undefined
10" OSTLBSP8SO OSTLBSP8SC $ undefined OSTLBSP6SO OSTLBSP6SC $ undefined OSTLBSP8D $ undefined OSTLBSP6D $ undefined
12" PSTLBSP8SO PSTLBSP8SC $ undefined - - - PSTLBSP8D $ undefined PSTLBSP6D $ undefined
page 2

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & F Series (Rack & Pinion) Pneumatic Actuator
ST Series Resilient Seated Butterfly Valve with rack and pinion spring return pneumatic actuator
Spring Return		 ST Series Resilient Seated Butterfly Valve with rack and pinion double acting pneumatic actuator
Double Acting		   Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Dual stroke adjustment
  • Up to 1 million cycles
  • Polyurethane coated chromated aluminum
  • -4°F to 176°F
  • ISO 5211 w/ female drive
  • 1/4" NPT NAMUR air ports
 
Size F series (Rack & Pinion) Pneumatic Actuator
Spring Return Double Acting
80 PSIG 60 PSIG 80 PSIG 60 PSIG
Fail OPEN Fail CLOSED Price Fail OPEN Fail CLOSED Price
2" HSTLBSF8SO HSTLBSF8SC $ undefined HSTLBSF6SO HSTLBSF6SC $ undefined HSTLBSF8D $ undefined HSTLBSF6D $ undefined
2 1/2" ISTLBSF8SO ISTLBSF8SC $ undefined ISTLBSF6SO ISTLBSF6SC $ undefined ISTLBSF8D $ undefined ISTLBSF6D $ undefined
3" JSTLBSF8SO JSTLBSF8SC $ undefined JSTLBSF6SO JSTLBSF6SC $ undefined JSTLBSF8D $ undefined JSTLBSF6D $ undefined
4" KSTLBSF8SO KSTLBSF8SC $ undefined KSTLBSF6SO KSTLBSF6SC $ undefined KSTLBSF8D $ undefined KSTLBSF6D $ undefined
5" LSTLBSF8SO LSTLBSF8SC $ undefined LSTLBSF6SO LSTLBSF6SC $ undefined LSTLBSF8D $ undefined LSTLBSF6D $ undefined
6" MSTLBSF8SO MSTLBSF8SC $ undefined MSTLBSF6SO MSTLBSF6SC $ undefined MSTLBSF8D $ undefined MSTLBSF6D $ undefined
8" NSTLBSF8SO NSTLBSF8SC $ undefined NSTLBSF6SO NSTLBSF6SC $ undefined NSTLBSF8D $ undefined NSTLBSF6D $ undefined
10" OSTLBSF8SO OSTLBSF8SC $ undefined OSTLBSF6SO OSTLBSF6SC $ undefined OSTLBSF8D $ undefined OSTLBSF6D $ undefined
12" PSTLBSF8SO PSTLBSF8SC $ undefined PSTLBSF6SO PSTLBSF6SC $ undefined PSTLBSF8D $ undefined PSTLBSF6D $ undefined
14" QSTLBSF8SO QSTLBSF8SC $ undefined QSTLBSF6SO QSTLBSF6SC $ undefined QSTLBSF8D $ undefined QSTLBSF6D $ undefined
16" RSTLBSF8SO RSTLBSF8SC $ undefined RSTLBSF6SO RSTLBSF6SC $ undefined RSTLBSF8D $ undefined RSTLBSF6D $ undefined
18" SSTLBSF8SO SSTLBSF8SC $ undefined SSTLBSF6SO SSTLBSF6SC $ undefined SSTLBSF8D $ undefined SSTLBSF6D $ undefined
20" TSTLBSF8SO TSTLBSF8SC $ undefined TSTLBSF6SO TSTLBSF6SC $ undefined TSTLBSF8D $ undefined TSTLBSF6D $ undefined
page 2

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & S4 Series Multi-voltage Weatherproof Electric Actuators
ST Series Resilient Seated Butterfly Valve with industrial duty electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Anti-corrosive polyamide housing
  • -4°F to 158°F
  • ISO 5211 with female drive
  • Single phase motor
  • 75% duty cycle
  • External DIN plugs with PG9 cable gland connectors
  • NEMA 4/4X
 
On/Off Actuator
Size S4 Series Weatherproof Electric Actuator
UNIVERSAL Voltage (24 to 240 VAC or DC)
2" HSTLBSS4UV $ undefined
2 1/2" ISTLBSS4UV $ undefined
3" JSTLBSS4UV $ undefined
4" KSTLBSS4UV $ undefined
5" LSTLBSS4UV $ undefined
6" MSTLBSS4UV $ undefined
8" NSTLBSS4UV $ undefined
 
ST Series Resilient Seated Butterfly Valve with industrial duty electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Anti-corrosive polyamide housing
  • -4°F to 158°F
  • ISO 5211 with female drive
  • Single phase motor
  • 75% duty cycle
  • External DIN plugs with PG9 cable gland connectors
  • NEMA 4/4X
  • Modulating positioner board
 
Modulating Actuator
Size S4 Series Weatherproof Electric Actuator
UNIVERSAL Voltage (24 to 240 VAC or DC)
4-20 mA 0-10 VDC Price
2" HSTLBSS4UV-EP420C HSTLBSS4UV-EP010C $ undefined
2 1/2" ISTLBSS4UV-EP420C ISTLBSS4UV-EP010C $ undefined
3" JSTLBSS4UV-EP420C JSTLBSS4UV-EP010C $ undefined
4" KSTLBSS4UV-EP420C KSTLBSS4UV-EP010C $ undefined
5" LSTLBSS4UV-EP420C LSTLBSS4UV-EP010C $ undefined
6" MSTLBSS4UV-EP420C MSTLBSS4UV-EP010C $ undefined
8" NSTLBSS4UV-EP420C NSTLBSS4UV-EP010C $ undefined
page 3

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & K4 Series Weatherproof Electric Actuators
ST Series Resilient Seated Butterfly Valve with industrial duty electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Aluminum alloy housing
  • 14°F to 131°F
  • ISO 5211 with female drive
  • Single phase motor
  • 75% or 100% duty cycle
  • 1/2" NPT conduit entry with cable gland
  • NEMA 4/4X
  • On/Off or Modulating
 
Size K4 Series 120 VAC Weatherproof Electric Actuator
On/Off Modulating
4-20 mA 0-10 VDC Price
2" HSTLBSK4A $ undefined HSTLBSK4A-EP420C HSTLBSK4A-EP010C $ undefined
2 1/2" ISTLBSK4A $ undefined ISTLBSK4A-EP420C ISTLBSK4A-EP010C $ undefined
3" JSTLBSK4A $ undefined JSTLBSK4A-EP420C JSTLBSK4A-EP010C $ undefined
4" KSTLBSK4A $ undefined KSTLBSK4A-EP420C KSTLBSK4A-EP010C $ undefined
5" LSTLBSK4A $ undefined LSTLBSK4A-EP420C LSTLBSK4A-EP010C $ undefined
6" MSTLBSK4A $ undefined MSTLBSK4A-EP420C MSTLBSK4A-EP010C $ undefined
8" NSTLBSK4A $ undefined NSTLBSK4A-EP420C NSTLBSK4A-EP010C $ undefined
10" OSTLBSK4A $ undefined OSTLBSK4A-EP420C OSTLBSK4A-EP010C $ undefined
12" PSTLBSK4A $ undefined PSTLBSK4A-EP420C PSTLBSK4A-EP010C $ undefined
14" QSTLBSK4A $ undefined PSTLBSK4A-EP420C PSTLBSK4A-EP010C $ undefined
16" RSTLBSK4A $ undefined RSTLBSK4A-EP420C RSTLBSK4A-EP010C $ undefined
18" SSTLBSK4A $ undefined - - -
20" TSTLBSK4A $ undefined - - -
page 4

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & B7 Series Explosion Proof Electric Actuators
ST Series Resilient Seated Butterfly Valve with heavy-duty explosion proof electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
   Actuator
  • Epoxy powder coated aluminum housing
  • -40°F to 150°F
  • ISO 5211 with female drive shaft
  • Single phase motor
  • 50% duty cycle
  • Two 1/2" NPT conduit entries and internal wiring terminal
  • NEMA 4/4X/7
  • On/Off or Modulating
  • Motor Brake Standard on all On/Off units
 
120 VAC Actuator
Size B7 Series 120 VAC Explosion Proof (NEMA 7) Electric Actuator
On/Off Modulating
4-20 mA 0-10 VDC Price
2" HSTLBSB7A-MB $ undefined HSTLBSB7A-EP420C HSTLBSB7A-EP010C $ undefined
2 1/2" ISTLBSB7A-MB $ undefined ISTLBSB7A-EP420C ISTLBSB7A-EP010C $ undefined
3" JSTLBSB7A-MB $ undefined JSTLBSB7A-EP420C JSTLBSB7A-EP010C $ undefined
4" KSTLBSB7A-MB $ undefined KSTLBSB7A-EP420C KSTLBSB7A-EP010C $ undefined
5" LSTLBSB7A-MB $ undefined LSTLBSB7A-EP420C LSTLBSB7A-EP010C $ undefined
6" MSTLBSB7A-MB $ undefined MSTLBSB7A-EP420C MSTLBSB7A-EP010C $ undefined
8" NSTLBSB7A-MB $ undefined NSTLBSB7A-EP420C NSTLBSB7A-EP010C $ undefined
10" OSTLBSB7A-MB $ undefined OSTLBSB7A-EP420C OSTLBSB7A-EP010C $ undefined
12" PSTLBSB7A-MB $ undefined PSTLBSB7A-EP420C PSTLBSB7A-EP010C $ undefined
14" QSTLBSB7A-MB $ undefined PSTLBSB7A-EP420C PSTLBSB7A-EP010C $ undefined
16" RSTLBSB7A-MB $ undefined RSTLBSB7A-EP420C RSTLBSB7A-EP010C $ undefined
18" SSTLBSB7A-MB $ undefined SSTLBSB7A-EP420C SSTLBSB7A-EP010C $ undefined
20" TSTLBSB7A-MB $ undefined TSTLBSB7A-EP420C TSTLBSB7A-EP010C $ undefined
 
24 VDC Actuator
Size B7 Series 24 VDC Explosion Proof (NEMA 7) Electric Actuator
On/Off Modulating
4-20 mA 0-10 VDC Price
2" HSTLBSB7B-MB $ undefined HSTLBSB7B-EP420C HSTLBSB7B-EP010C $ undefined
2 1/2" ISTLBSB7B-MB $ undefined ISTLBSB7B-EP420C ISTLBSB7B-EP010C $ undefined
3" JSTLBSB7B-MB $ undefined JSTLBSB7B-EP420C JSTLBSB7B-EP010C $ undefined
4" KSTLBSB7B-MB $ undefined KSTLBSB7B-EP420C KSTLBSB7B-EP010C $ undefined
5" LSTLBSB7B-MB $ undefined LSTLBSB7B-EP420C LSTLBSB7B-EP010C $ undefined
6" MSTLBSB7B-MB $ undefined MSTLBSB7B-EP420C MSTLBSB7B-EP010C $ undefined
8" NSTLBSB7B-MB $ undefined NSTLBSB7B-EP420C NSTLBSB7B-EP010C $ undefined
10" OSTLBSB7B-MB $ undefined OSTLBSB7B-EP420C OSTLBSB7B-EP010C $ undefined
12" PSTLBSB7B-MB $ undefined PSTLBSB7B-EP420C PSTLBSB7B-EP010C $ undefined
14" QSTLBSB7B-MB $ undefined QSTLBSB7B-EP420C QSTLBSB7B-EP010C $ undefined
16" RSTLBSB7B-MB $ undefined RSTLBSB7B-EP420C RSTLBSB7B-EP010C $ undefined
page 5

ST Series Lugged Flange,
BUNA Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Lugged Connections & Manual Operators
ST Series Resilient Seated Butterfly Valve with manual lever operatorST Series Resilient Seated Butterfly Valve with manual geared hand wheel Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • BUNA seat
  • ANSI class 125/150 lugged flange connections
  • -22 to 230°F
  • 2" to 12": 225 PSIG
    14" to 24": 160 PSIG
 
Size 10 Position Locking Lever Geared Hand Wheel
2" HSTLBSM $ undefined HSTLBSG $ undefined
2 1/2" ISTLBSM $ undefined ISTLBSG $ undefined
3" JSTLBSM $ undefined JSTLBSG $ undefined
4" KSTLBSM $ undefined KSTLBSG $ undefined
5" LSTLBSM $ undefined LSTLBSG $ undefined
6" MSTLBSM $ undefined MSTLBSG $ undefined
8" NSTLBSM $ undefined NSTLBSG $ undefined
10" OSTLBSM $ undefined OSTLBSG $ undefined
12" PSTLBSM $ undefined PSTLBSG $ undefined
QSTLBSG $ undefined
RSTLBSG $ undefined
SSTLBSG $ undefined
TSTLBSG $ undefined
USTLBSG $ undefined
 

Spare Parts and Replacement Seals


Spare parts are available...

Call 1-800-899-0553 for pricing or to order