Features

• Reliable backflow prevention
• Installed between mating flanges, short face-to-face
• 100% elastomer construction eliminates maintenance
• Will not corrode, warp or freeze open or shut
• 1”-2” Cracking Pressure
• Custom built for each application based on pressure and flow conditions
• Available in diameters from 1/2" (12mm) to 72” (1800mm)

Materials of construction

• Elastomer Information
• ANSI Class 125/150#, DIN PN6, PN10, PN16, or custom drilling patterns
• Retaining Rings (Optional, if required)
  • Galvanized Steel
  • 304 Stainless Steel
  • 316 Stainless Steel
  • Special Alloys Available

Cut Sheets

• Series 37

IOM

• Series 37