The Flomatic 7939-1VFD 4" 80DI8R-VFD - 8 Round Threads Check Valve is uniquely designed to prevent backflow, minimize hydraulic shocks and provide low friction losses. Designed to handle pressures to 600 psi and temperatures up to 180°F.

80DI8R-VFD 8 Round Line Pipe Threads - High strength epoxy coated ductile iron patented body, poppet and guide with 8 round connection. Features a NITRILE (Buna-N) seal, with stainless steel shaft and a ductile iron poppet. Designed for vertical or horizontal applications.

*8 round threads are NOT API certified.

Specifications:

NSF/ANSI 61 Approved

Max Pressure:  600 psi

Body:  Ductile Iron

Threads:  4"

Weight:  27 lbs

The American Made and one of the first-ever VariableFlow Demands (VFD) Check Valve for the Submersible Pump Industry continues to lead the way as the industry's pioneer.
The patented 80DIVFD is uniquely engineered to allow the valve to operate in a wide flow range which typically is the case with VFD controlled pumps. The exclusive poppet system ensures that the valve automatically closes tight and noiseless after each pump cycle. A self-cleaning seat/stem helps increase service life and the optional Break-Off plug improves convenience when servicing the system. Available in Bronze, Stainless Steel, and Ductile Iron 1" thru 10", Flomatic's 80DIVFD Series is a clear and reliable choice, another High Quality Valve Built to Last.

Features & Benefits:

• Low Friction Loss
  
• Noiseless Operation
  
• Stainless Steel Guiding
  
• Strong Ductile Iron, Enviro, or Stainless Steel Body
  
• Corrosion Resistant Internal Components
  
• "Pipe Thread-Lead-In" Section
  
• Longer Thread Areas
  
• Optional "Break-Off" Plug
  
• Female by Female, Male by Female, or Male by Male NPT or
  
• 8 Round Thread Configurations
  
• Mechanical Support for the Hydraulic Sea