Stuffing box lug

Patent metadata

Field	Value
Publication number	US-2016356390-A1
Application number	US-201615171686-A
Country	US
Kind code	A1
Filing date	Jun 2, 2016
Priority date	Jun 5, 2015
Publication date	Dec 8, 2016
Grant date	—

Abstract

A valve assembly can include a valve body and a stuffing box attached to the valve body, the stuffing box comprising a stuffing box body and a lifting lug extending from the stuffing box body. A method for lifting a valve assembly can include attaching a lifting mechanism to a lifting lug of the valve assembly and lifting the valve assembly with the lifting mechanism.

First claim

What is claimed is:

1 . A valve assembly comprising:
a valve body; and a stuffing box attached to the valve body, the stuffing box comprising a stuffing box body and a lifting lug extending from the stuffing box body.

2 . The valve assembly of claim 1 , wherein a box stem bore of the stuffing box is aligned with a vertical axis of the valve assembly.

3 . The valve assembly of claim 1 , further comprising a bonnet mounted to the valve body, the stuffing box mounted on the bonnet.

4 . The valve assembly of claim 3 , wherein the stuffing box and the bonnet define a clearance gap therebetween.

5 . The valve assembly of claim 1 , wherein the lifting lug extends horizontally from the stuffing box body past a radially outermost portion of an operating nut of the valve assembly.

6 . The valve assembly of claim 1 , wherein the lifting lug defines a lifting bore.

7 . The valve assembly of claim 6 , wherein the lifting bore defines a closed-shape profile.

8 . The valve assembly of claim 1 , wherein the lifting lug is a first lifting lug, the stuffing box further comprising a second lifting lug extending from the stuffing box body and defining a second lifting bore defining a closed-shape profile.

9 . The valve assembly of claim 8 , wherein the first lifting lug and the second lifting lug are symmetrical about an axis of the valve assembly.

10 . The valve assembly of claim 1 , wherein the valve body further comprises a plurality of anti-rotation notches, each anti-rotation notch sized to receive a T-bolt therein for securing the valve assembly to an adjacent component of a fluid system.

11 . A stuffing box for a valve assembly comprising:
a stuffing box body; and a lifting lug extending from the stuffing box body.

12 . The stuffing box of claim 11 , wherein the lifting lug defines a box stem bore and a lifting bore offset horizontally from the box stem bore.

13 . The stuffing box of claim 12 , wherein the lifting bore defines a closed-shape profile.

14 . The stuffing box of claim 11 , wherein the lifting lug is a first lifting lug, the valve assembly further comprising a second lifting lug extending from the stuffing box body and defining a second lifting bore defining a closed-shape profile.

15 . The stuffing box of claim 11 , further comprising a bottom flange extending downward from a bottom surface of the lifting lug.

16 . The stuffing box of claim 15 , wherein the bottom flange comprises straight edges when viewed from the side.

17 . A method for lifting a valve assembly, the valve assembly comprising a valve body and a stuffing box attached to the valve body, the stuffing box comprising a stuffing box body and a lifting lug extending from the stuffing box body, the method comprising:
attaching a lifting mechanism to the lifting lug of the valve assembly; and lifting the valve assembly with the lifting mechanism.

18 . The method of claim 17 , wherein the lifting lug defines a lifting bore defining a closed-shape profile.

19 . The method of claim 18 , wherein attaching a lifting mechanism to a valve assembly comprises passing a portion of the lifting mechanism through the lifting bore.

20 . The method of claim 17 , further comprising positioning a valve box over a portion of the valve assembly, an inner surface of the valve box positioned radially outward from an outermost portion of the lifting lug.

Assignees

• Mueller Int Llc

Inventors

• Gifford Paul

Classifications

• F16K41/02

  with stuffing-box {; Sealing rings} · CPC title

• F16K3/0281

  Guillotine or blade-type valves, e.g. no passage through the valve member · CPC title

• F16K27/04 Primary

  of sliding valves · CPC title

• F16K27/047

  with wedge-shaped obturating members · CPC title

• F16K41/023 Primary

  for spindles which only rotate, i.e. non-rising spindles (F16K41/043, F16K41/063 and F16K41/083 take precedence) · CPC title