The method for notching the internal valve with pozy screwdriver brilliant .just making a pump at the moment. Will save me messing about with a tiny chisel .Ps in LBSC 's later designs he did away with the so called air lock pin ,it was thought as the pin entered the chamber it restricted the water flow ! Causing a jerky action .
Nice job SteamWorx. Looked like a fun project. I made a little hand operated feedwater pump before. I'd like to understand more why you cut the 4 notches in the seat? I would think you want the seat & ball to seal.
Thanks for the kind comments. It’s all about the direction of flow. When the ram is pulled out of the pump we want water to flow from the bottom valve not the top. The valve seat in the bottom of the pump has the notches so that the ball cannot seal as the water is drawn in. The top valve is sealed against the vacuum caused by the ram so water is not drawn from the top. When the ram is pushed in, the water needs to go out of the top not the bottom. The pressure pushes the lower ball onto the seat to seal stopping water going out of the bottom valve, and the upper ball is pushed onto the notches allowing the water to flow out of the top. Not the best explanation, hopefully you get the idea.
@@steamworx I get it. I knew it was dumb question. So the notches are on the back side of the ball opposit the the seat so water flows when the ball bottoms out when open. I thought you were cutting into the nice seat you just made. Silly me. I love this stuff. Thank you
excellent video, just came across your channel and subscribed
Thank you, and thank you! Hope you enjoy.
The method for notching the internal valve with pozy screwdriver brilliant .just making a pump at the moment. Will save me messing about with a tiny chisel .Ps in LBSC 's later designs he did away with the so called air lock pin ,it was thought as the pin entered the chamber it restricted the water flow ! Causing a jerky action .
That’s very kind, thank you!!
Nice
@@paullangenkamp Thank you!
Nice job SteamWorx. Looked like a fun project. I made a little hand operated feedwater pump before.
I'd like to understand more why you cut the 4 notches in the seat? I would think you want the seat & ball to seal.
Thanks for the kind comments. It’s all about the direction of flow. When the ram is pulled out of the pump we want water to flow from the bottom valve not the top. The valve seat in the bottom of the pump has the notches so that the ball cannot seal as the water is drawn in. The top valve is sealed against the vacuum caused by the ram so water is not drawn from the top. When the ram is pushed in, the water needs to go out of the top not the bottom. The pressure pushes the lower ball onto the seat to seal stopping water going out of the bottom valve, and the upper ball is pushed onto the notches allowing the water to flow out of the top. Not the best explanation, hopefully you get the idea.
@@steamworx I get it. I knew it was dumb question. So the notches are on the back side of the ball opposit the the seat so water flows
when the ball bottoms out when open. I thought you were cutting into the nice seat you just made. Silly me. I love this stuff. Thank you
@@toddk.5873 No problem, glad you got it, not the most articulate reply from me!! Thanks again for the comment!
Nice work, does the water go through a check valve before it enters the boiler?
Thank you. Yes there is another clack (check) valve in the side of the boiler. It will be a while before that is made!