WDV check valve includes swing and lift type. It is used for
wellhead manifold assembly. The sealing face of seat and ring is
welded with overlay of high hardness alloy, which has high
performance to prevent abrasion, erosion and corrosion. The core
adopts sulfide-resistance steel and able to be used in H2S
condition, Valve body made by alloy steel forging with good
performance.
