Double port pressure regulator with floating seat

Patent metadata

Field	Value
Publication number	US-2016259349-A1
Application number	US-201615156645-A
Country	US
Kind code	A1
Filing date	May 17, 2016
Priority date	Mar 27, 2014
Publication date	Sep 8, 2016
Grant date	—

Abstract

A double port regulator assembly includes a first fluid port and a second fluid port. A fixed valve seat assembly is disposed proximate the first fluid port and a floating valve seat assembly is disposed proximate the second fluid port. A first valve plug cooperates with the fixed valve seat assembly to open and close the first fluid port and a second valve lug cooperates with the floating valve seat assembly to open and close the second fluid port. The floating valve seat assembly includes a floating valve seat that is movable with respect to the fixed valve seat.

First claim

1 - 14 . (canceled)

15 . A double port regulator comprising:
a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway; a first fluid port disposed within the fluid passageway, the first fluid port fluidly connecting the fluid inlet and the fluid outlet; a second fluid port disposed within the fluid passageway, the second fluid port fluidly connecting the fluid inlet and the fluid outlet; a fixed valve seat assembly disposed proximate the first fluid port; a floating valve seat assembly disposed proximate the second fluid port; a first valve plug that cooperates with the first valve seat assembly to open and close the first fluid port; and a second valve plug that cooperates with the floating valve seat assembly to open and close the second fluid port wherein in a first position, the first valve plug is spaced apart from the first valve seat assembly and the second valve plug is spaced apart from the second valve seat assembly, thereby allowing fluid to flow from the fluid inlet to the fluid outlet through both the first fluid port and the second fluid port, and wherein in a second position, the first valve plug contacts the first valve seat assembly and the second valve plug contacts the second valve seat assembly, thereby preventing fluid flow from the fluid inlet to the fluid outlet through both the first fluid port and the second fluid port.

16 . The double port regulator of claim 15 , the floating valve seat assembly comprising:
a floating seat retainer having a through bore that forms the second fluid port; and a floating seat at least partially disposed within the through bore, the floating seat being movable along a longitudinal axis of the floating seat retainer.

17 . The double port regulator of claim 16 , further comprising a disc spring disposed between the floating seat retainer and the floating seat, the disc spring biasing the floating seat away from the fixed valve seat assembly.

18 . The double port regulator of claim 17 , further comprising a retainer element disposed on the floating seat retainer, the retainer element limiting movement of the floating seat away from the fixed valve seat assembly.

19 . The double port regulator of claim 18 , wherein the retainer element is an annular disc including a base portion connected to a retaining portion by an angled portion.

20 . The double port regulator of claim 19 , wherein the retaining portion is spaced apart from the floating seat retainer by a tolerance gap.

Assignees

• Emerson Process Man Regulator Technologies Inc

Inventors

• Rebreanu Silviu V
• Bartha Istvan
• Roman Florin R
• Hanceanu Vlad C
• Oprean Aaron P

Classifications

• F16K1/12

  with streamlined valve member around which the fluid flows when the valve is opened · CPC title

• Y10T137/7846

  Mechanically interconnected · CPC title

• Y10T137/86928

  Sequentially progressive opening or closing of plural valves · CPC title

• Y10T137/7823

  Valve head in inlet chamber · CPC title

• F16K1/44 Primary

  Details of seats or valve members of double-seat valves · CPC title