Check Valves

Positive Backflow Prevention Check Valves ViNtrol offers a full line of Threaded, Wafer Style, API 6D and API 6A Flanged Swing Check Valves and Piston Check Valves. Regardless of your application, whether it’s a new installation, valve replacement, or a customized solution, ViNtrol has the right valve for your project.
















Size Ranges
1” thru 16”
Class 150 thru 1500 and API 5000
NACE MR0175/ISO 15156 (All Parts).
Series 32 Threaded Ends:
  • Size Range: 1” thru 3”
  • Pressures up to 2000 WOG
  • Ductile Iron
  • Horizontal and Vertical Up flow Service
  • Full Port
Series 110 Wafer Style:
  • Size Range: 2” thru 12”
  • ANSI Pressure Class 150 thru 600
  • Horizontal and Vertical Upflow Service
Series 35 API 6D & API 6A Flanged Ends:
  • API 6D: 2” thru 16”, ANSI Pressure Class 150 thru 1500
  • API 6A: 2” thru 4”, API 5000
  • ASME B16.34 & B16.5 Specifications
  • Shaft Style design with Integral seat
  • Replaceable Seat (optional)
  • Horizontal and Vertical Up flow Service
Series D550 Piston style, Flanged:
  • Size Range: 2” thru 8”
  • ANSI Pressure Class 600 and 900
  • ASME B16.34 & B16.5 Specifications
  • Designed, Engineered, Assembled & Tested in the USA