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Vahn-Tech Silent Check Valves (Non-Slam)

Features

  • High strength ductile iron body used for lowering the weight and improving long term durability.
  • Advance dynamic design of single body with diffuser provides streamline flow and assures lower head loss.
  • One of the lowest head loss check valve, resulting in savings towards power costs, valve disc with shorter plunger and spring reverse faster than most of check valve.
  • All iron parts are coated inside & outside with fusion bonded epoxy for corrosion resistance per AWWA C550.
  • Bronze bushing reduce wear and tear.
  • Hydrodynamic design with spring ensures non-slamming and prevents water hammer.
  • Stainless steel spring hidden in the diffuser and protected while valve is in operation.
  • Disc will positively close before reverse flow, and maximize the closing speed up to 0.2 sec.
  • Installation can be vertical / horizontal / inclined.
  • F/F comply with EN 558-1 Series 14.
  • Valves are certified NSF61 for Drinking Water and NSF72 for Lead Content.

 

Specifications

Size Range 2” – 24”
Pressure Rating 200 psi
400 psi
Working Temperature -10˚C ~ +80˚C
14˚F ~ +176˚F 
End Connection ANSI B16.1 Class 125 / 250
ANSI B16.5 Class 150
Face-to-Face AWWA C508
Test & Inspection AWWA C508
API 598
Materials Body :  Ductile Iron
Disc:  Ductile Iron + EPDM / NBR

Resources

Vahn-Tech-Silent-Check-Valve-Non-Slam

Vahn-Tech-Silent-Check-Valve-Non-Slam

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