Quick [leading] question. . .

After 50,000 miles, I replaced my stock petcock with a Pingel "fuel valve" model 1311-CHV. When I removed the the stock petcock I was surprised it was just a tube and valve on a 22MM mount. Should there have been a screen or something like the Pingel, or did I leave a stock petcock remnant in my tank that could eventually cause a future fuel flow issue?
Thanks in advance for your input