05-08-2011, 10:01 AM
The object in your photo, a boiler check valve, mounts to the boiler, with the pipe pointing down. That pipe runs to the output of the injector.
As DrWayne stated, "If the attached pipe is too short, the easiest way to lengthen it is to remove it completely, then drill the valve’s input end to accept a suitably-sized wire." the other end of that wire attaches to the injector.
In this picture of my 2-4-2 project, you can see the boiler check valve above the #1 driver. The pipe runs from it back to the cab, to the injector on the fireman's side. There is an identical valve, and injector on the engineer's side.
Also notice that the water pipe to the check valve, makes a 90 degree bend up, into the bottom of the valve.
The lifting injector, has 4 connections. 1. top, steam. 2. front, water to boiler. 3, and 4. bottom, the pipe at the bottom front is the overflow ( and goes straight down almost to the height of the rail head ), the bottom rear, is the water supply from the tender. The upper rear of the injector ( straight back from the water outlet ) is the operating valve.
On the check valve, the small pointy thing,on top, in line with the input pipe, is an adjustment screw, that balances the force of the water, to the boiler pressure. ( it's the inertia of the moving water that actually opens the check valve, the boiler pressure is the same as the steam pressure that gets the water moving )
As DrWayne stated, "If the attached pipe is too short, the easiest way to lengthen it is to remove it completely, then drill the valve’s input end to accept a suitably-sized wire." the other end of that wire attaches to the injector.
In this picture of my 2-4-2 project, you can see the boiler check valve above the #1 driver. The pipe runs from it back to the cab, to the injector on the fireman's side. There is an identical valve, and injector on the engineer's side.
Also notice that the water pipe to the check valve, makes a 90 degree bend up, into the bottom of the valve.
The lifting injector, has 4 connections. 1. top, steam. 2. front, water to boiler. 3, and 4. bottom, the pipe at the bottom front is the overflow ( and goes straight down almost to the height of the rail head ), the bottom rear, is the water supply from the tender. The upper rear of the injector ( straight back from the water outlet ) is the operating valve.
On the check valve, the small pointy thing,on top, in line with the input pipe, is an adjustment screw, that balances the force of the water, to the boiler pressure. ( it's the inertia of the moving water that actually opens the check valve, the boiler pressure is the same as the steam pressure that gets the water moving )
We always learn far more from our own mistakes, than we will ever learn from another's advice.
The greatest place to live life, is on the sharp leading edge of a learning curve.
Lead me not into temptation.....I can find it myself!
The greatest place to live life, is on the sharp leading edge of a learning curve.
Lead me not into temptation.....I can find it myself!