I was swapping delivery valves between an eco pump and a td pump so I could use the td pump with my injector lines and I noticed a difference of the internal valve between the two and wondered if maybe one flowed more or differently that the other. The 3 sided one came from the eco pump with long delivery valves ,the 4 sided from short td delivery valves. I'm wonsering if I could run the 4 sided ones in the td pump with the long delivery valves and not have to worry about the breaking pressure being different and having to change the adjusting shims???
the valves just hold residual pressure in the lines and don't affect the pop pressures. .... holds the lines at xxx bar (or xxx PSI) instead of starting at 0 each time.
