Search found 2649 matches

by Fender
Tue Jun 11, 2019 12:13 pm
Forum: Build Log
Topic: 3/4" Scale J1e
Replies: 110
Views: 16786

Re: 3/4" Scale J1e

What exhausts through the auxillary stack? Air pumps?
by Fender
Sun Jun 09, 2019 5:01 pm
Forum: Live Steam
Topic: LALS 8mm movie from the mid 60's
Replies: 21
Views: 1309

Re: LALS 8mm movie from the mid 60's

The 2-4-0 is numbered 609. I went back in the “barn find” thread and found this: I was just reading the January 1977 issue of Live Steam magazine and on page 41 is a large advertisement for the sale of what I think is your engine. It was numbered 609 at the time, and was being sold by a K.V. Hackman...
by Fender
Sun Jun 09, 2019 11:12 am
Forum: Live Steam
Topic: LALS 8mm movie from the mid 60's
Replies: 21
Views: 1309

Re: LALS 8mm movie from the mid 60's

Looked like an Allen 2-4-0 appeared several times. There can’t be that many of them around! Is this the same one as the “barn find” 2-4-0 in the “Build Log” forum?
by Fender
Sun Jun 09, 2019 7:49 am
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

Many railroads used Worthington feedwater heaters, which mixed exhaust steam with the feedwater. This removed most of the oxygen before the water went into the boiler.
by Fender
Sat Jun 08, 2019 12:20 pm
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

I thought so. If it doesn’t do anything for oxygen or pH, I see no reason not to correct for these conditions.
by Fender
Sat Jun 08, 2019 4:45 am
Forum: Live Steam
Topic: Large injectors in production
Replies: 2
Views: 373

Re: Large injectors in production

Look out, Penberthy!
by Fender
Fri Jun 07, 2019 5:48 am
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

Iam currently using LSB 8000 to remove free oxygen.
I’m not sure that LSB has an oxygen scavenger in it. My understanding is that it only prevents scale buildup. But then, there’s no list of ingredients!
by Fender
Thu Jun 06, 2019 7:12 pm
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

From my observation, some of the worst boiler problems arise from ground water (well water) rather than surface water. Rainwater collected from roofs has very little dissolved minerals, but often needs pH correction (because it's too acidic). I've seen boilers that used well water with significant c...
by Fender
Thu Jun 06, 2019 12:31 pm
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

From what I’ve read, pH should be about 9-10 for steel boilers with copper tubes, and 10-11 for steel tubes.
Ideally, the hardness should be zero, but this may be “hard” to achieve! 🤨
by Fender
Thu Jun 06, 2019 8:10 am
Forum: Live Steam
Topic: Boiler treatment
Replies: 23
Views: 897

Re: Boiler treatment

Boiler water treatment usually consists of adjusting the pH of the water, using water softener to remove dissolved minerals, an oxygen scavenger for removing dissolved oxygen, and an agent for preventing scale buildup. All of these variables “vary”, which is why the water must be tested. Sodium hydr...
by Fender
Mon Jun 03, 2019 5:21 pm
Forum: Live Steam
Topic: Injector question
Replies: 3
Views: 364

Re: Injector question

The usual source of oxygen in the feedwater is from “dissolved” oxygen already in the water. This can be removed chemically, such as with sodium sulfite, or by heating the water before it goes into the boiler, to reduce its solubility for gases.
by Fender
Mon Jun 03, 2019 5:11 pm
Forum: Live Steam
Topic: Injector question
Replies: 3
Views: 364

Re: Injector question

There is a check valve in the overflow line, which closes from the vacuum created by the injector when it “picks up” (begins putting water in the boiler). If the check valve is leaking, letting in air, then usually the injector fails. Also, if there is an air leak in the water feed line, this will a...