US valve manufacturer, Val-Matic have introduced their AWWA Swing Check Valve which is said to incorporate design features in order to provide energy savings, ease of maintenance and extended valve life.
Designed for municipal and industrial water and wastewater applications the valve is available with three field adjustable closer options: Lever & Weight, Air Cushion or Lever & Spring. The Swing Check Valve features a 100% unrestricted flow area for energy savings and a full-access domed cover with vent port for ease of maintenance without removing the valve from the line.
Other features include: heavy duty stainless steel shafts and replaceable body seats, replaceable resilient seats with integral O-ring sealing beadsfor positive seating and NSF/ANSI 61 fusion bonded epoxy coating on the interior and exterior for corrosion resistance. Sizes 2”–48” are constructed of ductile iron andsizes 30”–48” are also available in gray iron. They are designed and built in accordance with AWWA Standard C508, are Certifiedto NSF/ANSI 61 for Drinking Water System Components and areCertified Lead-Free in accordance with NSF/ANSI 372.