Blower Valve Vs Injector Steam Valve

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FRED DADDI
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Blower Valve Vs Injector Steam Valve

Post by FRED DADDI » Tue Dec 10, 2019 8:42 pm

Ok what is the difference. Both globe valves on a 1” scale locomotive?


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NP317
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Re: Blower Valve Vs Injector Steam Valve

Post by NP317 » Tue Dec 10, 2019 9:36 pm

Not sure I understand what you are asking.
They both perform different functions, but can be the same type of valve.
RussN

FRED DADDI
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Re: Blower Valve Vs Injector Steam Valve

Post by FRED DADDI » Tue Dec 10, 2019 10:07 pm

Yes both steam valves so they can be the same valve basically?


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jkimberln
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Re: Blower Valve Vs Injector Steam Valve

Post by jkimberln » Tue Dec 10, 2019 11:00 pm

A blower valve is usually an adjustable valve so that the blower can be regulated. An Injector valve can be like a blower valve but usually is either on or off. Most injector valves are a push-pull valve and are either on or off and can't be regulated like a screwed valve can.

AnthonyDuarte
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Re: Blower Valve Vs Injector Steam Valve

Post by AnthonyDuarte » Wed Dec 11, 2019 2:39 am

The valve you would use for a blower can be used for an Injector, and in my opinion on-off/quick start valves should not be used for injectors. They greatly limit an injector’s performance. They have a huge range of capacity when using a regulating steam valve, and even the lifting type will prime more reliably with a slow startup of steam, especially when hot. They start much better when water is allowed to run through them for a second before opening the steam valve fully.

You can of course use a quick start valve, but I see no benefit.

On full sized injectors, Injector valves are different from blower valves because they feature a priming position. This allows the valve to be opened partially to prime the injector before opening fully.

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Fred_V
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Re: Blower Valve Vs Injector Steam Valve

Post by Fred_V » Wed Dec 11, 2019 7:37 am

I have used screw valves for 3 different makes of injectors and they all worked fine.
Fred V
Pensacola, Fl.

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