Ball valve with downstream residue purge

    公开(公告)号:US12011745B2

    公开(公告)日:2024-06-18

    申请号:US17984668

    申请日:2022-11-10

    摘要: A downstream ball valve purging inlet directs purging fluid intentionally onto a downstream portion of the valve ball. The Coanda effect attaches some of the fluid to the ball's surface, so that it flows around the ball to an opposite side thereof, thereby purging the downstream valve cavity more efficiently than designs that avoid impacting the ball and depend on mixing to distribute the purging fluid onto the ball. The purging inlet can be downstream of the ball and directed at an acute angle, proximate the ball and directed perpendicular to the outlet axis, or some combination thereof. A central cavity purging drain can be connected with the purging inlet, so that the same fluid purges both the valve interior and the downstream cavity. Embodiments include a plurality of downstream purging inlets, which can have equal purging angles and can be equally spaced about the outlet axes.

    Flow channel switching valve
    4.
    发明授权

    公开(公告)号:US11754195B2

    公开(公告)日:2023-09-12

    申请号:US17613217

    申请日:2020-04-27

    IPC分类号: F16K27/06 F16K5/06 F16K11/087

    摘要: A flow channel switching valve includes a valve stem that is attached to a ball valve member. The flow channel switching valve includes a potentiometer shaft that is press-fitted into an attachment hole provided in an end surface of the valve stem, and a potentiometer that detects a rotation angle of the potentiometer shaft around an axis. The potentiometer shaft has a small-diameter portion, a medium-diameter portion, and a large-diameter portion that are sequentially connected in a direction of the axis, and is supported rotatably around the axis in the attachment hole in an inserted state before being press-fitted into the attachment hole. The large-diameter portion is press-fitted into an upper end portion of the attachment hole.

    Valve diagnostic and performance system

    公开(公告)号:US11692903B2

    公开(公告)日:2023-07-04

    申请号:US17061361

    申请日:2020-10-01

    摘要: A seat leak measurement system for a ball valve is described. The system includes: a ball valve with a cavity drain line, the ball valve including a cavity pressure sensor; a valve seat leak measurement apparatus including: a cable with a connector, the connector having an external grounding cable; an apparatus electronic control system in communication with the valve sensor retrieval fitting and with valves of the valve seat; an fluid inlet line with a quick pipe coupler, the fluid inlet line having an apparatus drain valve and an isolation valve; a pressure indicator transmitter connected to the fluid inlet line, the pressure indicator transmitter in electronic communication with the apparatus electronic control system; a temperature indicator transmitter connected to the fluid inlet line, the temperature indicator transmitter in electronic communication with the apparatus electronic control system; and a flow elements manifold receiving fluid from the fluid inlet line.