
Pneumatic valves help create proper air pressure and flow rates within air-powered systems. The lowest row of valves in the image were printed in the new PLA The internal valve in the block are made of leather and is adjustable like originals.


Artificial organs can be either surgically implanted or extra corporeal (in which blood is temporarily processed outside the patient's body). Conditions which may cause heart valve dysfunction are valvular stenosis and valvular insufficiency (regurgitation). The pouch collapses into the "clam shell" when the magnet valve opens and exhausts the pouch chamber to atmosphere. Our leathers are also well suited for most other types of musical instruments which require leather. Herco valve protector in excellent condition NOS thanks for looking. Restore the ventil stop actions for the Trumpet, existing Aeoline, and Voix Celeste. Its durability has always been a matter of concern because it must be periodically replaced at great expense. For a young person with a tissue valve replacement, the need for additional surgery or another valve replacement later in life is highly likely. The pictures tell the story.Electrical systems were unreliable. A new coat of french polish was applied where appropriate, pitmans had graphite reapplied and everything put back together. Some gluing and clamping and of course reed cleaning. The sides of the wooden shafts of the sharps were also painted in their original matt black. I lightly sanded them and polished them with bees wax. The sharps were quite pitted and worn but have cleaned up nicely. I have sanded the sides of all the keys and polished the key tops to a nice shiny finish. So a lot of buttons to be glued and pins cleaned. The subbass is also activated by as set of adjustable buttons on the bottom of the key. A lot of the the coupler buttons had also split and they felt here was very worn so I replaced that too. The felt on most of these was in very good condition so I just replaced six of them. A lot of these had split and had to be glued back together and the pin glued back in place. Each key has an adjustable button on the top of the long style key which activates the pitmans for the upper reed reed chest. I usually use pool table cloth for that job. Unusually I found that I needed to use the thickest rebushing felt sold by Schaff supply house. The keys on this organ have had all their bushings replaced. The coupler needed to be cleaned and has been reinstalled and part of the sub-bass mechanism has been cleaned and reinstalled.

The swell shades had were re-sealed and shellack applied and reinstalled. Reeds were removed and cleaned.Īll the pitmans had all their felt collars replaced and new graphite applied. All the pallet valves have been re-leathered and the springs cleaned everything re-installed on the underside of the reed pan. The reed pan was thoroughly cleaned, sanded and resealed and shellacked.
