摘要:
Apparatus, including a diaphragm valve (10), is provided featuring a valve body (12) having a fluid flow channel configured with a weir portion (12b) to control the flow of fluid through the fluid flow channel (12a); a diaphragm (16) configured to respond to the closing force and to an opening force to make sealing contact with the weir portion to interrupt said flow, or to release the sealing contact with the weir portion (12b) to allow the flow; a compressor (14) configured to apply the closing force or the opening force in order to interrupt or allow the flow; and at least two studs (18) configured to: couple the compressor (14) and the diaphragm (16) together, attach to the diaphragm so as to provide attachment points on the diaphragm on each side of the weir portion, and respond to the closing force or the opening force so that the attachment points on both sides of the weir portion cause the diaphragm to make sealing contact with the weir portion or cause the sealing contact to be released.
摘要:
Apparatus (10) is provided featuring a spindle (12) having extending spindle portions (12a',12a'') configured with spindle glands (12b',12b''); a compressor (14) having extending compressor portions (14a',14a'') configured with compressor glands (14b',14b''), and a snap ring (16) configured to engage the spindle glands (12b',12b'') and the compressor glands (14b',14b'') in order to attach the spindle (12) and compressor (14) together, so that the compressor (14) may be quickly released from the spindle (12) by releasing an engagement between the snap ring (16), the spindle glands (12b',12b'') and/or the compressor glands (14b',14b'').
摘要:
Electrical connectors are disclosed. One electrical connector comprises a receptacle component and a plug component. The receptacle component includes a receptacle body portion having a pair of opposed walls defining a gap therebetween. The pair of opposed walls each having one or more openings in their respective ends. The receptacle component also includes a plurality of first metal contacts partially surrounded by the pair of opposed walls. The plug component includes a plug body portion having a projection. The projection is sized to fit within the gap between the pair of opposed walls of the receptacle component. The plug component also includes a plurality of second metal contacts extending from the plug body portion. Ends of the second metal contacts are positioned to extend into the openings in the pair of opposed walls when the projection is positioned within the gap between the pair of opposed walls.
摘要:
Techniques are provided for tuning a rotary positive displacement pump. The techniques include apparatus featuring a signal processor configured to the present invention may take the form of apparatus comprising a signal processor that may be configured to receive signaling containing information about actual pump performance data related to the operation of a rotary positive displacement pump; and determine corrected published pump performance data to operate the rotary positive displacement pump by compensating published pump performance data based at least partly on the actual pump performance data. The corrected published pump performance data may include a corrected published rated power, flow and slip factor, and the actual pump performance data contains information about actual power, specific gravity and viscosity related to the operation of the rotary positive displacement pump and received from a pump controller or controlling device, including a variable frequency drive.
摘要:
Electrical connectors are disclosed. One electrical connector comprises a receptacle component and a plug component. The receptacle component includes a receptacle body portion having a pair of opposed walls defining a gap therebetween. The pair of opposed walls each having one or more openings in their respective ends. The receptacle component also includes a plurality of first metal contacts partially surrounded by the pair of opposed walls. The plug component includes a plug body portion having a projection. The projection is sized to fit within the gap between the pair of opposed walls of the receptacle component. The plug component also includes a plurality of second metal contacts extending from the plug body portion. Ends of the second metal contacts are positioned to extend into the openings in the pair of opposed walls when the projection is positioned within the gap between the pair of opposed walls.
摘要:
Apparatus, including a diaphragm valve, is provided featuring a valve body (12) configured with at least one spherically-shaped valve body sealing surface (12a, 12b); and a diaphragm (14) configured with at least one diaphragm sealing surface (14a, 14b), and also configured to respond to an applied force and provide sealing contact between the at least one diaphragm sealing surface and the at least one spherically-shaped valve body sealing surface. The valve body is configured with a spherical weir (12a) having a spherical weir sealing surface (12b) configured with polish marks substantially perpendicular to a weir leak path. The valve body also has a circular rim having a spherically-shaped peripheral sealing surface configured with polish marks, many of which are substantially perpendicular to a shell leak path.