This back check valve is designed to provide required back flow protection for the unloading riser in the bulk plant’s transfer area. It is designed specifically for pipeline installation and is suitable for LP-Gas and Anhydrous Ammonia service. Product flow moves the swing check to the open position, when flow stops the spring loaded swing check closes.


  • Easy to read flow indicator
  • Heavy duty spring loaded swing check design
  • Resilient synthetic rubber seat disc
  • High flow rates with low pressure drop
  • May be installed either horizontally or vertically
  • ¼” F-NPT plugged boss on top of body


Body Ductile Iron
Stem Stainless Steel
Seat Stainless Steel
Seat Disc Resilient synthetic rubber
Return Spring Stainless Steel