DIYAPASON-L Digest #27 - Friday, February 4, 2000
blower motor
  by "Kelvin Smith" <>
Fwd: Re: [Residence Organs]  Measuring Wind Pressures.
  by "David Scribner" <>

(back) Subject: blower motor From: "Kelvin Smith" <> Date: Fri, 4 Feb 2000 16:41:29 -0700   Hello,   If anyone has a replacement for a blower motor matching the following information, I would be interested in buying one. Someone said they had a collection of these, but I lost the email address.   Thanks, Kelvin     pipe rs frame 254z sfa-7-1921 2hp 110 volt 1165 RPM serial 12s21407      
(back) Subject: Fwd: Re: [Residence Organs] Measuring Wind Pressures. From: "David Scribner" <> Date: Fri, 4 Feb 2000 18:32:57 -0600   Richard Schneider is still having email problems so here is a forward from = him.   >"Bruce, David" wrote: > > > There has been a thread recently on measuring wind pressures using a > > manometer (U-tube). > > > In past experience, I have found that if you only open the valve for = the > > pipe-hole where the manometer is plugged in, you can get a false = reading > > (usually high). I believe this is due to the regulator valve opening = to > > make up for the lost air, but the system is still sealed and the = result is > > that the pressure in the chest is raised. By opening a second valve = and > > letting it exhaust to atmosphere, you will get a much better idea of = what > > the regulator is actually regulating to. > >This should not be, if the regulator is working correctly! What's >SUPPOSED to be happening is that the regulator is supposed to be >compensating perfectly for whatever demand on the wind there is from >virtually nil (just keeping the chest and intervening wind lines >pressurized!) to full demand -at least up to the capacity of the wind >system to replenish the demand (and if the organ was properly designed, >the supply won't ever exceed the demand!!) > >Sounds to me like some checking of the wind regulation valve needs to be >done in order to ascertain that it is working correctly. You will never >have an accurate wind supply system unless it is possible for the >Curtain Valve, or whatever type of wind control valve is being used to >seal off the wind COMPLETELY. This is vitally important to the >successful operation of such a regulating device. > > > The results I had in the past were with Wurlitzer copy regulators, = running > > at 6", 8" and 10" pressures. Blower static was 17". The effect = described > > above may have been a result of the difference between static and = regulated > > pressure. > >Again, this shouldn't matter, although that much of a differential is >undesirable. 2-3" maximum is preferable. > > > Any of our professional friends on the list have any comments? > >Well, them's my random thoughts. . . > >Faithfully, > >"Arp" >Richard Schneider, President >SCHNEIDER PIPE ORGANS, Inc. >Organbuilders >41-43 Johnston St. >P.O. Box 137 >Kenney, IL 61749-0137 > Business EMAIL > Personal EMAIL > Business Website URL