Abstract: A valve assembly includes a valve body having an internal cavity, an orifice in communication with the internal cavity for communicating with a process in a tank or conduit and an outlet through which process material entering the internal cavity through the orifice can be drained from the internal cavity. A valve actuator body includes an actuating shaft having a sealing tip and is mounted for movement in the valve actuator body to seal and unseal the orifice. A diaphragm is mounted to the sealing tip and includes a base that seals with a bottom wall of the valve body. The bottom of the valve body has an aperture that receives the actuating shaft therethrough. The diaphragm is mountable to and removable from the bottom wall of the valve body through the aperture.

Abstract: A valve body for a valve includes a body having an internal cavity formed therein. An inlet passage and an outlet passage are formed in the body. The inlet passage has an inlet opening in communication with the internal cavity, and the outlet passage has an outlet opening in communication with the internal cavity. A circumferential sealing surface is formed on a wall of the internal cavity. The circumferential sealing surface extends between the inlet opening and the outlet opening and circumferentially around the internal cavity. Furthermore, a bottom line extending through the inlet passage, the internal cavity and the outlet passage forms a coplanar surface to allow for free-drainage of the body.

Abstract: A valve assembly includes a valve body having an internal cavity, an orifice in communication with the internal cavity for communicating with a process in a tank or conduit and an outlet through which process material entering the internal cavity through the orifice can be drained from the internal cavity. A valve actuator body includes an actuating shaft having a sealing tip and is mounted for movement in the valve actuator body to seal and unseal the orifice. A diaphragm is mounted to the sealing tip and includes a base that seals with a bottom wall of the valve body. The bottom of the valve body has an aperture that receives the actuating shaft therethrough. The diaphragm is mountable to and removable from the bottom wall of the valve body through the aperture.