best live chat
 
Order Online or Call Toll-Free 1-800-899-0553  
Log-in/Create Account
 
 $0
Search
 
We Make Valve Automation Easy
We Make Valve Automation Easy
No Items in Cart

ST Series Resilient Seated Butterfly Valves

Lug and Wafer Style Butterfly Valves (2" to 24")
Buy a Resilient Seated Butterfly Valve
Manual and Actuated Resilient Seated Butterfly Valves

 

Description

The ST Series are resilient seated 125/150, ductile iron wafer style (STW) or lug style (STL) butterfly valves available with either BUNA-N or EPDM seats and a choice of disc materials (316SS, nickle plated ductile iron, or bronze). It can be equipped with a manual handle or with pneumatic or electric actuators. A full range of accessory items are available including limit switches, solenoid valves, positioners and manual override devices.

 

Lug & Wafer Style Mounting

Buy a Resilient Seated Butterfly Valve

Features & Benefits

  • Silicone Free
  • Economy & high performance
  • One-piece body construction and self-centering disc.
  • Seat facing acts as flange gasket.
  • 3 shaft bushings support actuation.
  • Shaft sealing against external leakage
  • Meets MSS SP-67 and API-609 specs.
  • Complete line of accessories

Specifications

Materials
  • Body: Epoxy Coated Ductile Iron
  • Disc: 316 Stainless Steel (standard) NI Plated D.I. or Bronze available
  • Seats - BUNA-N or EPDM
End Connections
  • Wafer: 2" to 12"
  • Lugged: 2" to 24"
Temperature Range:
  • BUNA-N: -4 to 194°F
  • EPDM: -22 to 230°F
Pressure Range:
  • 225 PSIG (2" to 12")
  • 160 PSIG (14" to 24")
Pressure Testing:
  • Body Hydro: 343 PSIG
  • Seat Hydro:243 PSIG
Dead End Service: (lug type only)
  • 150 PSIG (2" to 12")
  • 100 PSIG (14" to 24")

Available Actuators

  • Electric
  • Pneumatic (spring return)
  • Pneumatic (double acting)
  • Manual Handle Lever
  • Manual Geared Hand Wheel
  • Geared Hand Wheel with Chain Wheel
  • Manual Handle with Limit Switch

Typical Applications

  • Water and waste effluent treatment plants
  • Paper, textiles and sugar industry
  • Construction industry, and drilling production
  • Heating, air conditioning, and cooling water circulation
  • Pneumatic conveyors, and vacuum applications
  • Compressed air, gas and desulphurization plants
  • Brewing, distilling, and chemical process industry
  • Transportation and dry bulk handling
  • Power industry
  • Custom Butterfly Valve Assemblies

Certifications & Approvals

  • Meets MSS SP-67 and API-609 Certifications
  • ISO 9001 by LRQA. certificate No.K981064
  • Canada registration No CRN 0C0569.9C valves
  • CE/PED approval... by LLOYDS certification No RPS0160308/01
  • Products approval...South Africa SABS, No.7222/145532/VH136

buy a stainless steel actuated ball valve
Stay Connected with Us
© Assured Automation. We reserve the right to make technical changes at any time.
Please contact us to verify any information that is critical to your application.