iPolymer PVDF Drain Valve (DV) is a large orifice valve capable of handling large volumes of corrosive fluids via an all non-metallic wetted surface. The body components are manufactured from PVDF to maximize performance in ultrapure and harsh chemical environments. O-Rings available: EPDM, Viton or Kalrez O-rings. This valve is also available in 2, 3 and 4 way configurations with each port operating independently. The “DV” can be operated either by air to open/air to close or by spring return. Either operating method can be specified in the ordering format. Custom configurations available.