go to our web site:
assuredautomation.com

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESC8SO HSTLESC8SC $ undefined HSTLESC6SO HSTLESC6SC $ undefined HSTLESC8D $ undefined HSTLESC6D $ undefined
2 1/2" ISTLESC8SO ISTLESC8SC $ undefined ISTLESC6SO ISTLESC6SC $ undefined ISTLESC8D $ undefined ISTLESC6D $ undefined
3" JSTLESC8SO JSTLESC8SC $ undefined JSTLESC6SO JSTLESC6SC $ undefined JSTLESC8D $ undefined JSTLESC6D $ undefined
4" KSTLESC8SO KSTLESC8SC $ undefined KSTLESC6SO KSTLESC6SC $ undefined KSTLESC8D $ undefined KSTLESC6D $ undefined
5" LSTLESC8SO LSTLESC8SC $ undefined LSTLESC6SO LSTLESC6SC $ undefined LSTLESC8D $ undefined LSTLESC6D $ undefined
6" MSTLESC8SO MSTLESC8SC $ undefined MSTLESC6SO MSTLESC6SC $ undefined MSTLESC8D $ undefined MSTLESC6D $ undefined
8" NSTLESC8SO NSTLESC8SC $ undefined NSTLESC6SO NSTLESC6SC $ undefined NSTLESC8D $ undefined NSTLESC6D $ undefined
10" OSTLESC8SO OSTLESC8SC $ undefined OSTLESC6SO OSTLESC6SC $ undefined OSTLESC8D $ undefined OSTLESC6D $ undefined
12" PSTLESC8SO PSTLESC8SC $ undefined PSTLESC6SO PSTLESC6SC $ undefined PSTLESC8D $ undefined PSTLESC6D $ undefined
14" QSTLESC8SO QSTLESC8SC $ undefined QSTLESC6SO QSTLESC6SC $ undefined QSTLESC8D $ undefined QSTLESC6D $ undefined
16" RSTLESC8SO RSTLESC8SC $ undefined RSTLESC6SO RSTLESC6SC $ undefined RSTLESC8D $ undefined RSTLESC6D $ undefined
18" SSTLESC8SO SSTLESC8SC $ undefined SSTLESC6SO SSTLESC6SC $ undefined SSTLESC8D $ undefined SSTLESC6D $ undefined
page 1

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESP8SO HSTLESP8SC $ undefined HSTLESP6SO HSTLESP6SC $ undefined HSTLESP8D $ undefined HSTLESP6D $ undefined
2 1/2" ISTLESP8SO ISTLESP8SC $ undefined ISTLESP6SO ISTLESP6SC $ undefined ISTLESP8D $ undefined ISTLESP6D $ undefined
3" JSTLESP8SO JSTLESP8SC $ undefined JSTLESP6SO JSTLESP6SC $ undefined JSTLESP8D $ undefined JSTLESP6D $ undefined
4" KSTLESP8SO KSTLESP8SC $ undefined KSTLESP6SO KSTLESP6SC $ undefined KSTLESP8D $ undefined KSTLESP6D $ undefined
5" LSTLESP8SO LSTLESP8SC $ undefined LSTLESP6SO LSTLESP6SC $ undefined LSTLESP8D $ undefined LSTLESP6D $ undefined
6" MSTLESP8SO MSTLESP8SC $ undefined MSTLESP6SO MSTLESP6SC $ undefined MSTLESP8D $ undefined MSTLESP6D $ undefined
8" NSTLESP8SO NSTLESP8SC $ undefined NSTLESP6SO NSTLESP6SC $ undefined NSTLESP8D $ undefined NSTLESP6D $ undefined
10" OSTLESP8SO OSTLESP8SC $ undefined OSTLESP6SO OSTLESP6SC $ undefined OSTLESP8D $ undefined OSTLESP6D $ undefined
12" PSTLESP8SO PSTLESP8SC $ undefined - - - PSTLESP8D $ undefined - -
page 2

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESF8SO HSTLESF8SC $ undefined HSTLESF6SO HSTLESF6SC $ undefined HSTLESF8D $ undefined HSTLESF6D $ undefined
2 1/2" ISTLESF8SO ISTLESF8SC $ undefined ISTLESF6SO ISTLESF6SC $ undefined ISTLESF8D $ undefined ISTLESF6D $ undefined
3" JSTLESF8SO JSTLESF8SC $ undefined JSTLESF6SO JSTLESF6SC $ undefined JSTLESF8D $ undefined JSTLESF6D $ undefined
4" KSTLESF8SO KSTLESF8SC $ undefined KSTLESF6SO KSTLESF6SC $ undefined KSTLESF8D $ undefined KSTLESF6D $ undefined
5" LSTLESF8SO LSTLESF8SC $ undefined LSTLESF6SO LSTLESF6SC $ undefined LSTLESF8D $ undefined LSTLESF6D $ undefined
6" MSTLESF8SO MSTLESF8SC $ undefined MSTLESF6SO MSTLESF6SC $ undefined MSTLESF8D $ undefined MSTLESF6D $ undefined
8" NSTLESF8SO NSTLESF8SC $ undefined NSTLESF6SO NSTLESF6SC $ undefined NSTLESF8D $ undefined NSTLESF6D $ undefined
10" OSTLESF8SO OSTLESF8SC $ undefined OSTLESF6SO OSTLESF6SC $ undefined OSTLESF8D $ undefined OSTLESF6D $ undefined
12" PSTLESF8SO PSTLESF8SC $ undefined PSTLESF6SO PSTLESF6SC $ undefined PSTLESF8D $ undefined PSTLESF6D $ undefined
14" QSTLESF8SO QSTLESF8SC $ undefined QSTLESF6SO QSTLESF6SC $ undefined QSTLESF8D $ undefined QSTLESF6D $ undefined
16" RSTLESF8SO RSTLESF8SC $ undefined RSTLESF6SO RSTLESF6SC $ undefined RSTLESF8D $ undefined RSTLESF6D $ undefined
18" SSTLESF8SO SSTLESF8SC $ undefined SSTLESF6SO SSTLESF6SC $ undefined SSTLESF8D $ undefined SSTLESF6D $ undefined
20" TSTLESF8SO TSTLESF8SC $ undefined TSTLESF6SO TSTLESF6SC $ undefined TSTLESF8D $ undefined TSTLESF6D $ undefined
page 2

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESS4UV $ undefined
2 1/2" ISTLESS4UV $ undefined
3" JSTLESS4UV $ undefined
4" KSTLESS4UV $ undefined
5" LSTLESS4UV $ undefined
6" MSTLESS4UV $ undefined
8" NSTLESS4UV $ undefined
 
ST Series Resilient Seated Butterfly Valve with industrial duty electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • EPDM 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" HSTLESS4UV-EP420C HSTLESS4UV-EP010C $ undefined
2 1/2" ISTLESS4UV-EP420C ISTLESS4UV-EP010C $ undefined
3" JSTLESS4UV-EP420C JSTLESS4UV-EP010C $ undefined
4" KSTLESS4UV-EP420C KSTLESS4UV-EP010C $ undefined
5" LSTLESS4UV-EP420C LSTLESS4UV-EP010C $ undefined
6" MSTLESS4UV-EP420C MSTLESS4UV-EP010C $ undefined
8" NSTLESS4UV-EP420C NSTLESS4UV-EP010C $ undefined
page 3

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESK4A $ undefined HSTLESK4A-EP420C HSTLESK4A-EP010C $ undefined
2 1/2" ISTLESK4A $ undefined ISTLESK4A-EP420C ISTLESK4A-EP010C $ undefined
3" JSTLESK4A $ undefined JSTLESK4A-EP420C JSTLESK4A-EP010C $ undefined
4" KSTLESK4A $ undefined KSTLESK4A-EP420C KSTLESK4A-EP010C $ undefined
5" LSTLESK4A $ undefined LSTLESK4A-EP420C LSTLESK4A-EP010C $ undefined
6" MSTLESK4A $ undefined MSTLESK4A-EP420C MSTLESK4A-EP010C $ undefined
8" NSTLESK4A $ undefined NSTLESK4A-EP420C NSTLESK4A-EP010C $ undefined
10" OSTLESK4A $ undefined OSTLESK4A-EP420C OSTLESK4A-EP010C $ undefined
12" PSTLESK4A $ undefined PSTLESK4A-EP420C PSTLESK4A-EP010C $ undefined
14" QSTLESK4A $ undefined PSTLESK4A-EP420C PSTLESK4A-EP010C $ undefined
16" RSTLESK4A $ undefined RSTLESK4A-EP420C RSTLESK4A-EP010C $ undefined
18" SSTLESK4A $ undefined - - -
20" TSTLESK4A $ undefined - - -
page 4

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESB7A-MB $ undefined HSTLESB7A-EP420C HSTLESB7A-EP010C $ undefined
2 1/2" ISTLESB7A-MB $ undefined ISTLESB7A-EP420C ISTLESB7A-EP010C $ undefined
3" JSTLESB7A-MB $ undefined JSTLESB7A-EP420C JSTLESB7A-EP010C $ undefined
4" KSTLESB7A-MB $ undefined KSTLESB7A-EP420C KSTLESB7A-EP010C $ undefined
5" LSTLESB7A-MB $ undefined LSTLESB7A-EP420C LSTLESB7A-EP010C $ undefined
6" MSTLESB7A-MB $ undefined MSTLESB7A-EP420C MSTLESB7A-EP010C $ undefined
8" NSTLESB7A-MB $ undefined NSTLESB7A-EP420C NSTLESB7A-EP010C $ undefined
10" OSTLESB7A-MB $ undefined OSTLESB7A-EP420C OSTLESB7A-EP010C $ undefined
12" PSTLESB7A-MB $ undefined PSTLESB7A-EP420C PSTLESB7A-EP010C $ undefined
14" QSTLESB7A-MB $ undefined PSTLESB7A-EP420C PSTLESB7A-EP010C $ undefined
16" RSTLESB7A-MB $ undefined RSTLESB7A-EP420C RSTLESB7A-EP010C $ undefined
18" SSTLESB7A-MB $ undefined SSTLESB7A-EP420C SSTLESB7A-EP010C $ undefined
20" TSTLESB7A-MB $ undefined TSTLESB7A-EP420C TSTLESB7A-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" HSTLESB7B-MB $ undefined HSTLESB7B-EP420C HSTLESB7B-EP010C $ undefined
2 1/2" ISTLESB7B-MB $ undefined ISTLESB7B-EP420C ISTLESB7B-EP010C $ undefined
3" JSTLESB7B-MB $ undefined JSTLESB7B-EP420C JSTLESB7B-EP010C $ undefined
4" KSTLESB7B-MB $ undefined KSTLESB7B-EP420C KSTLESB7B-EP010C $ undefined
5" LSTLESB7B-MB $ undefined LSTLESB7B-EP420C LSTLESB7B-EP010C $ undefined
6" MSTLESB7B-MB $ undefined MSTLESB7B-EP420C MSTLESB7B-EP010C $ undefined
8" NSTLESB7B-MB $ undefined NSTLESB7B-EP420C NSTLESB7B-EP010C $ undefined
10" OSTLESB7B-MB $ undefined OSTLESB7B-EP420C OSTLESB7B-EP010C $ undefined
12" PSTLESB7B-MB $ undefined PSTLESB7B-EP420C PSTLESB7B-EP010C $ undefined
14" QSTLESB7B-MB $ undefined QSTLESB7B-EP420C QSTLESB7B-EP010C $ undefined
16" RSTLESB7B-MB $ undefined RSTLESB7B-EP420C RSTLESB7B-EP010C $ undefined
page 5

ST Series Lugged Flange,
EPDM 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
  • EPDM 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" HSTLESM $ undefined HSTLESG $ undefined
2 1/2" ISTLESM $ undefined ISTLESG $ undefined
3" JSTLESM $ undefined JSTLESG $ undefined
4" KSTLESM $ undefined KSTLESG $ undefined
5" LSTLESM $ undefined LSTLESG $ undefined
6" MSTLESM $ undefined MSTLESG $ undefined
8" NSTLESM $ undefined NSTLESG $ undefined
10" OSTLESM $ undefined OSTLESG $ undefined
12" PSTLESM $ undefined PSTLESG $ undefined
QSTLESG $ undefined
RSTLESG $ undefined
SSTLESG $ undefined
TSTLESG $ undefined
USTLESG $ undefined
 

Spare Parts and Replacement Seals


Spare parts are available...

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