Pump valve seat with supplemental retention

Patent metadata

Field	Value
Publication number	US-11231111-B2
Application number	US-201916411898-A
Country	US
Kind code	B2
Filing date	May 14, 2019
Priority date	May 14, 2019
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

A valve seat comprising a primary retention component to retain the valve seat in a valve seat housing upon seating of the valve seat in the valve seat housing, and a secondary retention component to at least temporarily retain the valve seat in the valve seat housing during seating of the valve seat in the valve seat housing, whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component.

First claim

We claim:

1. A valve seat comprising:
a primary retention component to retain the valve seat in a valve seat housing upon seating of the valve seat in the valve seat housing, wherein the primary retention component comprises a locking taper outer diameter (OD), wherein the locking taper OD extends an entire axial length of the valve seat along a central axis thereof and is tapered along the entire axial length; and
a secondary retention component to at least temporarily retain the valve seat in the valve seat housing during seating of the valve seat in the valve seat housing, whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component,
wherein the valve seat housing comprises part of a reciprocating element or part of a pump fluid end body and wherein the secondary retention component comprises a groove about an outer circumference of the locking taper OD.

2. The valve seat of claim 1 , wherein the groove is designed to receive a tab of the valve seat housing, wherein the tab extends inward toward the central axis.

3. The valve seat of claim 2 , wherein a height of the groove along a direction parallel to a central axis of the valve seat is greater than a height of the tab along the direction parallel to the central axis of the valve seat when the valve seat is seated in the valve seat housing, such that the valve seat may move an axial distance adequate to fully seat the valve seat within the valve seat housing during seating of the valve seat in the valve seat housing whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component.

4. The valve seat of claim 1 , wherein the groove is continuous about the outer circumference of the locking taper OD, and wherein the groove is configured for positioning of a snap ring or a staking component in the groove between the valve seat housing and the valve seat.

5. The valve seat of claim 1 , wherein the groove is configured to receive a roll pin passing through the valve seat housing.

6. A pump fluid end comprising:
a valve seat housing; and
a valve seat comprising:
a primary retention component to retain the valve seat in the valve seat housing upon seating of the valve seat in the valve seat housing, wherein the primary retention component comprises a locking taper outer diameter (OD), wherein the locking taper OD extends an entire axial length of the valve seat along a central axis thereof and is tapered along the entire axial length; and
a secondary retention component to at least temporarily retain the valve seat in the valve seat housing during seating of the valve seat in the valve seat housing via the primary retention component,

wherein the valve seat housing comprises part of a reciprocating element or part of a pump fluid end body and wherein the secondary retention component comprises a groove about an outer circumference of the locking taper OD.

7. The pump fluid end of claim 6 , wherein the valve seat housing comprises a tab about an inner circumference thereof, wherein the tab extends inward toward the central axis and is located for positioning of the tab within the groove of the valve seat during seating of the valve seat in the valve seat housing.

8. The pump fluid end of claim 7 , wherein a height of the groove along a direction parallel to a central axis of the valve seat is greater than a height of the tab along the direction parallel to the central axis of the valve seat when the valve seat is seated in the valve seat housing, such that the valve seat may move axially a distance adequate to fully seat the valve seat within the valve seat housing during seating of the valve seat in the valve seat housing whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component.

9. The pump fluid end of claim 6 , wherein the secondary retention component further comprises a snap ring or a staking component in the groove between the valve seat housing and the valve seat, or a roll pin, a screw, a dowel pin, a rivet, a threaded fastener, or a combination thereof passing through a part of the valve seat housing and into the groove.

10. A method of seating a valve seat in a valve seat housing of a pump fluid end, the method comprising:
prior to fully seating the valve seat in the valve seat housing, whereafter the valve seat is retained in the valve seat housing primarily by a primary retention component, temporarily retaining the valve seat in the valve seat housing via a secondary retention component disparate from the primary retention component,
wherein the primary retention component comprises a locking taper outer diameter (OD), wherein the locking taper OD extends an entire axial length of the valve seat along a central axis thereof and is tapered along the entire axial length,
wherein fully seating the valve seat in the valve seat housing comprises contacting the valve seat housing with a surface of the valve seat opposite a valve body contact surface of the valve seat, wherein the valve body contact surface of the valve seat is a surface of the valve seat configured to contact a valve body of a valve assembly comprising the valve seat and the valve body when the valve assembly is closed, and
wherein the valve seat housing comprises part of a reciprocating element or part of a pump fluid end body, wherein the secondary retention component comprises a groove about an outer circumference of the locking taper OD, and wherein temporarily retaining the valve seat in the valve seat housing comprises positioning an insertion component at least partially in the groove between the valve seat housing and the valve seat.

11. The method of claim 10 , wherein the insertion component comprises a tab or a staking component of the valve seat housing that extends inward toward the central axis.

12. The method of claim 11 , wherein the tab is continuous or discontinuous about the outer circumference of the locking taper OD when the tab is positioned in the groove between the valve seat housing and the valve seat.

13. The method of claim 11 , wherein a height of the groove along a direction parallel to a central axis of the valve seat is greater than a height of the tab along the direction parallel to the central axis of the valve seat when the valve seat is seated in the valve seat housing, such that the valve seat may move axially a distance adequate to fully seat the valve seat within the valve seat housing during seating of the valve seat in the valve seat housing whereafter the valve seat is primarily retained in the valve seat housing via the primary retention component.

14. The method of claim 10 , wherein the insertion component comprises a snap ring or a staking component positioned in the groove between the valve seat housing and the valve seat, or a roll pin, a screw, a dowel pin, a rivet, a threaded fastener, or a combination thereof passing through a part of the valve seat housing and into the groove.

15. A valve seat comprising:
a primary retention component to retain the valve seat in a valve seat housing upon seating of the valve seat in the valve seat housing, wherein the primary retention component comprises a locking taper outer diameter (OD), wherein the locking taper OD extends an entire axial length of the valve seat along a central axis thereof and is tapered along the entire axial length; and
a secondary retention component to at least temporarily retain the valve seat in the valve seat housing during seating of the valve seat in the valve seat housing, whereafter the valve seat is primarily retained in the valve seat

Assignees

• Halliburton Energy Services Inc

Inventors

• Hurst Justin Lee
• Olis James Alan
• Beisel Joseph A

Classifications

• F04B53/102

  Disc valves · CPC title

• F04B1/053

  with actuating or actuated elements at the inner ends of the cylinders · CPC title

• F04B53/1087 Primary

  Valve seats · CPC title

• F16K1/427

  Attachment of the seat to the housing by one or more additional fixing elements · CPC title

• F16K3/0272 Primary

  permitting easy assembly or disassembly · CPC title