Fluid control means having plurality discs

• US 3,894,716 A
• Filed: 12/26/1973
• Issued: 07/15/1975
• Est. Priority Date: 12/26/1973
• Status: Expired due to Term

• Current Assignee: Anchor/Darling Valve Company
• Original Assignee: Gayle E. Barb
• Inventors: Barb, Gayle E.
• Primary Examiner(s): Klinksiek, Henry T.
• Application Number:
  US05/427,751
• Time in Patent Office: 566 Days
• Field of Search: 251/127 137/625.3,625.37 138/42,43
• US Class Current: 251/127
• CPC Class Codes: F16K 47/02 for preventing water-hammer or noise
• CPC Class Codes: F16K 47/08 for decreasing pressure or noise level and having a throttling member separate from the closure member , e.g. screens, slots, labyrinths
• CPC Class Codes: Y10T 137/86734 With metering feature
• CPC Class Codes: Y10T 137/86791 Piston

Abstract

A valve structure having a valve body with a valve plug mounted therein and a plurality of stacked annular members extending about the valve plug in the closed position. The annular members are spaced from each other to provide a fluid flow path therebetween and each has an imperforate body portion with a plurality of radially spaced ribs projecting from opposite sides of the imperforate body portion to form successive stages of pressure reduction as the fluid flows between the spaced annular members.

Claims

1. A valve structure comprising a valve body having an inlet passageway extending in one direction and an outlet passageway extending in a second direction generally at right angles to said one direction, a valve plug mounted within said body for longitudinal back and forth axial movement to control the flow of fluid from the inlet passageway to the outlet passageway, and a stack of annular disc-like members in said valve body extending about and receiving the valve plug in its closed position with the annular members being spaced from each other to permit a flow of fluid therebetween in an open position of the valve plug, each of said annular members having an imperforate annular body portion of a generally uniform thickness and a plurality of spaced concentric ribs extending from opposite faces of the body portion with each annular body portion having aligned pairs of concentric ribs on said opposite faces, the concentric ribs on adjacent facing annular members being in opposed aligned relation to each other with the spacing between each successive pair of facing ribs progressively increasing in an outward direction, said ribs providing a resistance to flow of fluid between the annular members and resulting in successive pressure drops.

2. A valve structure as set forth in claim 1 wherein spacer means are provided between the annular members to space the annular members a predetermined distance from each other to permit the flow of fluid therebetween in the open position of the valve plug, said spacer means comprising generally radially extending spacers between the ribs in contact with and secured to opposed body portions.