Saturday, January 21, 2012

[MW:13537] RE: 13531] Valve Back Seat Test

Dear Gopi,
In Gate and globe valves there is a backseat provision on bonnet below
stuffing box.
During line pressure if gland is leaking,you have to replace the packings.By
putting valve at fully open condition (backseat position).
To check the backseat you have to see leakage through gland.

Thanks
n.gupta

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of Gopi Perumal
Sent: Saturday, January 21, 2012 9:31 AM
To: materials-welding@googlegroups.com
Subject: [MW:13531] Valve Back Seat Test

Dear all,

Anybody can explain what is mean by Backseat test in Valve Testing? (API
598)

Thanks,
P Gopi

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to
materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at
http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and
meant for educational purposes only, Users must take their own decisions
w.r.t. applicable code/standard/contract documents.
!-- Virus-Free Mail Using AntiVirus for PostMaster Enterprise & QuickHeal
Engine --!


---------------------------------------
NECO Group Of Industries, Nagpur, India


!-- Virus-Free Mail Using AntiVirus for PostMaster Enterprise & QuickHeal Engine --!

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

No comments:

[MW:35346] Cast-iron welding

Any advice for cast iron welding Sent from Yahoo Mail for iPhone