go to our web site:
assuredautomation.com

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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" HSTWESP8SO HSTWESP8SC $ undefined HSTWESP6SO HSTWESP6SC $ undefined HSTWESP8D $ undefined HSTWESP6D $ undefined
2 1/2" ISTWESP8SO ISTWESP8SC $ undefined ISTWESP6SO ISTWESP6SC $ undefined ISTWESP8D $ undefined ISTWESP6D $ undefined
3" JSTWESP8SO JSTWESP8SC $ undefined JSTWESP6SO JSTWESP6SC $ undefined JSTWESP8D $ undefined JSTWESP6D $ undefined
4" KSTWESP8SO KSTWESP8SC $ undefined KSTWESP6SO KSTWESP6SC $ undefined KSTWESP8D $ undefined KSTWESP6D $ undefined
5" LSTWESP8SO LSTWESP8SC $ undefined LSTWESP6SO LSTWESP6SC $ undefined LSTWESP8D $ undefined LSTWESP6D $ undefined
6" MSTWESP8SO MSTWESP8SC $ undefined MSTWESP6SO MSTWESP6SC $ undefined MSTWESP8D $ undefined MSTWESP6D $ undefined
8" NSTWESP8SO NSTWESP8SC $ undefined NSTWESP6SO NSTWESP6SC $ undefined NSTWESP8D $ undefined NSTWESP6D $ undefined
10" OSTWESP8SO OSTWESP8SC $ undefined OSTWESP6SO OSTWESP6SC $ undefined OSTWESP8D $ undefined OSTWESP6D $ undefined
12" PSTWESP8SO PSTWESP8SC $ undefined - - - PSTWESP8D $ undefined PSTWESP6D $ undefined
page 1

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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" HSTWESF8SO HSTWESF8SC $ undefined HSTWESF6SO HSTWESF6SC $ undefined HSTWESF8D $ undefined HSTWESF6D $ undefined
2 1/2" ISTWESF8SO ISTWESF8SC $ undefined ISTWESF6SO ISTWESF6SC $ undefined ISTWESF8D $ undefined ISTWESF6D $ undefined
3" JSTWESF8SO JSTWESF8SC $ undefined JSTWESF6SO JSTWESF6SC $ undefined JSTWESF8D $ undefined JSTWESF6D $ undefined
4" KSTWESF8SO KSTWESF8SC $ undefined KSTWESF6SO KSTWESF6SC $ undefined KSTWESF8D $ undefined KSTWESF6D $ undefined
5" LSTWESF8SO LSTWESF8SC $ undefined LSTWESF6SO LSTWESF6SC $ undefined LSTWESF8D $ undefined LSTWESF6D $ undefined
6" MSTWESF8SO MSTWESF8SC $ undefined MSTWESF6SO MSTWESF6SC $ undefined MSTWESF8D $ undefined MSTWESF6D $ undefined
8" NSTWESF8SO NSTWESF8SC $ undefined NSTWESF6SO NSTWESF6SC $ undefined NSTWESF8D $ undefined NSTWESF6D $ undefined
10" OSTWESF8SO OSTWESF8SC $ undefined OSTWESF6SO OSTWESF6SC $ undefined OSTWESF8D $ undefined OSTWESF6D $ undefined
12" PSTWESF8SO PSTWESF8SC $ undefined PSTWESF6SO PSTWESF6SC $ undefined PSTWESF8D $ undefined PSTWESF6D $ undefined
page 2

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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" HSTWESS4UV $ undefined
2 1/2" ISTWESS4UV $ undefined
3" JSTWESS4UV $ undefined
4" KSTWESS4UV $ undefined
5" LSTWESS4UV $ undefined
6" MSTWESS4UV $ undefined
8" NSTWESS4UV $ undefined
 
ST Series Resilient Seated Butterfly Valve with industrial duty electric actuator     Valve
  • Epoxy Coated Ductile Iron Body
  • 316 Stainless Steel Disc
  • EPDM seals
  • ANSI class 125/150 Wafer 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" HSTWESS4UV-EP420C HSTWESS4UV-EP010C $ undefined
2 1/2" ISTWESS4UV-EP420C ISTWESS4UV-EP010C $ undefined
3" JSTWESS4UV-EP420C JSTWESS4UV-EP010C $ undefined
4" KSTWESS4UV-EP420C KSTWESS4UV-EP010C $ undefined
5" LSTWESS4UV-EP420C LSTWESS4UV-EP010C $ undefined
6" MSTWESS4UV-EP420C MSTWESS4UV-EP010C $ undefined
8" NSTWESS4UV-EP420C NSTWESS4UV-EP010C $ undefined
page 3

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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" HSTWESK4A $ undefined HSTWESK4A-EP420C HSTWESK4A-EP010C $ undefined
2 1/2" ISTWESK4A $ undefined ISTWESK4A-EP420C ISTWESK4A-EP010C $ undefined
3" JSTWESK4A $ undefined JSTWESK4A-EP420C JSTWESK4A-EP010C $ undefined
4" KSTWESK4A $ undefined KSTWESK4A-EP420C KSTWESK4A-EP010C $ undefined
5" LSTWESK4A $ undefined LSTWESK4A-EP420C LSTWESK4A-EP010C $ undefined
6" MSTWESK4A $ undefined MSTWESK4A-EP420C MSTWESK4A-EP010C $ undefined
8" NSTWESK4A $ undefined NSTWESK4A-EP420C NSTWESK4A-EP010C $ undefined
10" OSTWESK4A $ undefined OSTWESK4A-EP420C OSTWESK4A-EP010C $ undefined
12" PSTWESK4A $ undefined PSTWESK4A-EP420C PSTWESK4A-EP010C $ undefined
page 4

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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
 
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" HSTWESB7A $ undefined HSTWESB7A-EP420C HSTWESB7A-EP010C $ undefined
2 1/2" ISTWESB7A $ undefined ISTWESB7A-EP420C ISTWESB7A-EP010C $ undefined
3" JSTWESB7A $ undefined JSTWESB7A-EP420C JSTWESB7A-EP010C $ undefined
4" KSTWESB7A $ undefined KSTWESB7A-EP420C KSTWESB7A-EP010C $ undefined
5" LSTWESB7A $ undefined LSTWESB7A-EP420C LSTWESB7A-EP010C $ undefined
6" MSTWESB7A $ undefined MSTWESB7A-EP420C MSTWESB7A-EP010C $ undefined
8" NSTWESB7A $ undefined NSTWESB7A-EP420C NSTWESB7A-EP010C $ undefined
10" OSTWESB7A $ undefined OSTWESB7A-EP420C OSTWESB7A-EP010C $ undefined
12" PSTWESB7A $ undefined PSTWESB7A-EP420C PSTWESB7A-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" HSTWESB7B $ undefined HSTWESB7B-EP420C HSTWESB7B-EP010C $ undefined
2 1/2" ISTWESB7B $ undefined ISTWESB7B-EP420C ISTWESB7B-EP010C $ undefined
3" JSTWESB7B $ undefined JSTWESB7B-EP420C JSTWESB7B-EP010C $ undefined
4" KSTWESB7B $ undefined KSTWESB7B-EP420C KSTWESB7B-EP010C $ undefined
5" LSTWESB7B $ undefined LSTWESB7B-EP420C LSTWESB7B-EP010C $ undefined
6" MSTWESB7B $ undefined MSTWESB7B-EP420C MSTWESB7B-EP010C $ undefined
8" NSTWESB7B $ undefined NSTWESB7B-EP420C NSTWESB7B-EP010C $ undefined
10" OSTWESB7B $ undefined OSTWESB7B-EP420C OSTWESB7B-EP010C $ undefined
12" PSTWESB7B $ undefined PSTWESB7B-EP420C PSTWESB7B-EP010C $ undefined
page 5

ST Series Wafer Flange,
EPDM Resilient Seated Butterfly Valves - Price List

Effective: Mar-26-2025

Wafer 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 seals
  • ANSI class 125/150 Wafer 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" HSTWESM $ undefined HSTWESG $ undefined
2 1/2" ISTWESM $ undefined ISTWESG $ undefined
3" JSTWESM $ undefined JSTWESG $ undefined
4" KSTWESM $ undefined KSTWESG $ undefined
5" LSTWESM $ undefined LSTWESG $ undefined
6" MSTWESM $ undefined MSTWESG $ undefined
8" NSTWESM $ undefined NSTWESG $ undefined
10" OSTWESM $ undefined OSTWESG $ undefined
12" PSTWESM $ undefined PSTWESG $ undefined
 

Spare Parts and Replacement Seals


Spare parts are available...

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