What does a rotary valve do?
A rotary valve (also called rotary-motion valve) is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. The common stopcock is the simplest form of rotary valve.
How do you restring a trombone valve?
Start from the outside of the rod and thread toward the valve. The knot must provide a stop at the hole. With the stop arm (B) to the right of rod (A), bring the string around the top of the rotor stem in a clockwise direction, then loop the string entirely around the small screw (C) in a counter-clockwise direction.
Is rotary oil the same as valve oil?
Types of Oil I use valve oil, which is a thinner oil, instead of a heavier rotor oil. Older horn valves can be ‘clankier’ and would benefit from a heavier rotor oil on the top and back, but be sure to use valve oil inside. Remember, valve oil actually protects the inside of the rotor from corrosion caused by saliva.
How do you oil a rotary valve?
We would recommend oiling about once per month to keep the rotary valves in good condition. Unscrew the back-plate of each rotor and put one drop of thicker oil on the central bearing. Screw the plate back on not too tight. Then put drop on the front axle of each rotor and on each moving joint in the linkages.
Can you use rotary oil on piston valves?
In general, rotary valve oil is thinner than piston valve oil, but thin piston valve oil like “Fast” can be used perfectly well on rotary valved instruments. The actual rotaries need thin oil, but all the other moving parts that make the rotary turn, need a slightly thicker “key” type of oil (called “spindle oil”).
What is airlock rotary valve?
An Airlock is a valve that separates a pressure differential sealing off airflow from a hopper, bin, or conveying line. In the pneumatic conveying world airlocks are usually found at the beginning of a pressure system or at the end of a vacuum system.
How many valves does a tenor trombone have?
Tenor Trombones: Available with a choice of five different valves: the S.E. Shires rotary valve, the S.E. Shires axial-flow valve, the S.E. Shires dual-bore valve, the S.E. Shires Tru-Bore™ valve (U.S. Patent 7112735), and the S.E. Shires twin valve.
How do you fix a stuck slide on a trombone?
Use a slide brush to scrub the insides of the instrument, rinse thoroughly, and, once the trombone is dry, apply some slide oil to the playing slide. If this doesn’t solve your sticking problem, then you know you’re most likely dealing with a bent slide.
How do you clean a dirty trombone?
If you think you’re dealing with just a little bit of dirt, you can take your trombone apart and give it a bath with warm water and mild soap. Use a slide brush to scrub the insides of the instrument, rinse thoroughly, and, once the trombone is dry, apply some slide oil to the playing slide.
What is a Tru bore valve?
Tru-bore™ valve. The S.E. Shires tru-bore™ valve is our own design, a valve that captures many of the free-blowing, evenly responding characteristics of a straight trombone, with an amazingly continuous response between the open and engaged positions. It combines clear articulations with broad sound and feel.