.
Home Manuals Supplies Search Consult Contact Testing Service

Single or Double Valve Action?

The easiest way to tell if you have a Single Valve or Double Valve Standard Player Action is to look at the space directly below the Spoolbox. The Spoolbox is mounted on a Deck Board which is about 5/8" thick. Between the Deck Board and the Stack, there is a 3" space. In that space there will be a piece of wood. If that piece of wood appears to be held in place by 7-8 small screws, you have a Single Valve action. A double valve action will have two rows of screws that are spacing about 1-1/4" from each other that run the length of the upper section. Below is a picture of a Single Valve Standard Action.

To Return to the Previous Page - Click Here
For a diagram of the components in a Standard Player Action - Click Here

I'll try to get some pictures to make this easier....

One or Two Reservoirs?

The first Lower Section pictured below has TWO Reservoirs. The one below that has only One.

More information about the Single and Double Valve Actions

Subject: Serial Numbers for Standard Player Action (by Diane DeTar)

I have several stack dates for action stacks made by Standard Pneumatic Action Co. I'll just give you a few to help date the Auto-Art player piano. These are verified dates from inside the stack as well as the case number.

108758: 1912 (double valve stack)
288641: 1913 (double valve stack)
316061: 1917 (double valve stack)
300435: 1924 (single valve stack)

As you can see, there is a discrepancy with the chronological order as the 1924 number is smaller than the 1917. I started keeping track of the single- verses double-valve stacks and they indeed have a different numbering system, so I do believe that the single stack was made later and they started with another numbering system for that stack. The single stack numbers that I have are from 299698-403080.

One other interesting fact is that the factory always stamped the bottom of the bellows with a completion date. If the bellows have not been rebuilt it would still be there and you can see it with a mirror and flashlight. It is right on the cloth where it is glued to the wood.

We Gladly Accept These Cards
Discover, VISA, Master Card

John A Tuttle

This page was last revised February 8, 2006 by John A. Tuttle, who Assumes No Liability
For The Accuracy or Validity of the Statements and/or Opinions
Expressed within the Pages of the Player-Care Domain.

Since "Player-Care" is an internet business, I prefer that we correspond via E-Mail (click here to fill out the 'Request Form'). However, if I'm not in the middle of some other activity, you can reach me at 732-840-8787. But please understand that during the hours from 8AM-5PM EST (Mon-Sat), I'm generally quite busy. So, I probably won't answer the phone. If you get the answering machine, please leave a detailed message stating the reason for your call. Also, repeat your name and phone number clearly and distinctly. By necessity, I prioritize everything in my life. And, if you call and just leave your name and number, and ask me to call you back, it might be a day or two before I return your call. Why? Because I don't know why you want me to call and I might not be prepared to assist you in an effective and efficient manner. If you leave me an E-Mail address (which I prefer), spell it out phonetically. The more you do to help me, the more I can help you in return. Don't rush. You have four minutes to record your message.

Grand 16 IconGrand 32 Icon

407 19th Ave, Brick, NJ, 08724
Phone Number 732-840-8787
Upright 32 IconUpright 16 Icon

Google Adsense Ad

SSL Certificates