The thin body Parveen Swing Check Valves are available in 2" to 4" sizes; Welded, Flanged or Threaded end type with pressure rating upto 5000 PSI. A counterweight one-piece disc pivots to open position and closes to positively seal off reverse flow. The special design of the disc allows fullest possible flow passage and the valve has less pressure drop than any valve of its type. Seals are Buna-N, Teflon or metal-to-metal. Other sizes & pressure ratings are also available on request.