Live steam Globe valves

Advert

New Replies

Report Bug

Help/FAQs

Live steam Globe valves

This topic has 10 replies, 8 voices, and was last updated 19 November 2020 at 22:22 by mechman48.

Viewing 11 posts - 1 through 11 (of 11 total)

Author

Posts
5 July 2017 at 11:29 #1619
Ron Hancock
Participant
@ronhancock63652
Advert

5 July 2017 at 11:29 #305642
Ron Hancock
Participant
@ronhancock63652
hi can anyone suggest a good steam Globe Valve. I have bought several from different suppliers but seem to seal for a very short time. I need a 3 1/6 pipe fitting to supply my Injector had new one fitted only two weeks ago it's already seeping

Ron
5 July 2017 at 11:47 #305646
steamdave
Participant
@steamdave
Have you tried the PM Research globe valve? 1/4" x 40 thread available from Forrest Classics
http://www.forest-classics.co.uk/pm_research_sw-4.htm#Globe%20Valve

or if you fancy machining your own from castings, have a look at PMR
https://www.pmmodelengines.com/shop/pipe-fittings/globe-valve-kits/

They are easy to make up.

Dave
The Emerald Isle
5 July 2017 at 11:49 #305647
JasonB
Moderator
@jasonb
Ron, most globe valves have a right and wrong way round. You need to get them in the right. see here right way round for steam

J

Edited By JasonB on 05/07/2017 12:23:11
6 July 2017 at 09:12 #305800
Henry Artist
Participant
@henryartist43508
I have found the valves supplied by GLR Kennions to be very good quality. **LINK**

Sometimes, after a lot of use there can be a tiny leak at the valve stem but it is a simple matter to replace the graphite string packing. You may also like to experiment with O rings.

Alternatively, you may want to try the valves sold by Bengs Modellbau. **LINK**

They are made by Winfried Niggel and are rated to 6 bar.
19 November 2020 at 17:22 #508536
Greensands
Participant
@greensands
Can anyone please expand on the idea that a globe valve has right and wrong way around. The link given in a previous post is now dispslaying the dreaded "404 Not found" messag
19 November 2020 at 17:31 #508540
J Hancock
Participant
@jhancock95746
Pressurised side is under the disc, so that given a reasonable shut-off , the valve spindle packing can be changed

safely when fully closed.
19 November 2020 at 17:45 #508543
Harry Wilkes
Participant
@harrywilkes58467
Beware with PM fittings quality very good but threads are to US standards

H
19 November 2020 at 17:47 #508545
Harry Wilkes
Participant
@harrywilkes58467
As posted by Greenlands your link brings up a page error

H

Posted by JasonB on 05/07/2017 11:49:04:

Ron, most globe valves have a right and wrong way round. You need to get them in the right. see here right way round for steam

J

Edited By JasonB on 05/07/2017 12:23:11
19 November 2020 at 22:17 #508603
mechman48
Participant
@mechman48
Hi Ron, think along the lines of.. steam moves along the pipe from the boiler, then goes UP against the bottom of the disc, which lifts & allows steam over the top of the weir & into the discharge line of the valve… think 'along – up & over – along'. I know from my time repairing valves that industrial valves have an arrow to show the flow direction cast in the body & so which way the valve should be fitted. Google 'globe valve diagrams'.

George.
19 November 2020 at 22:22 #508605
mechman48
Participant
@mechman48
Look here..

https://www.google.co.uk/imgres?imgurl=https%3A%2F%2Fi.pinimg.com%2Foriginals%2F01%2F82%2F09%2F018209fc0310de4aba6988e707ff41f0.jpg&imgrefurl=https%3A%2F%2Fwww.pinterest.com%2Fpin%2F410601690997845959%2F&tbnid=KyYe-nMxxdGCPM&vet=12ahUKEwiOpbqm0o_tAhVLZxoKHVuUBiIQMygEegUIARDmAQ..i&docid=vRVFOXdTsNw-oM&w=1749&h=1304&q=globe%20valve%20diagram&ved=2ahUKEwiOpbqm0o_tAhVLZxoKHVuUBiIQMygEegUIARDmAQ

George.

Edited By mechman48 on 19/11/2020 22:24:53
Author

Posts