Frac head including a mixing chamber

A frac head comprising:

• a frac head body including an upstream end, a downstream end, and an internal bore, the internal bore having a first diameter at the upstream end and a second diameter at the downstream end, the first diameter being larger than the second diameter, the internal bore further having a tapered region between the upstream and downstream ends;
• a plurality of side ports deployed about the frac head body, the side ports having an intercept with the internal bore that is upstream of the tapered region, the side ports disposed to produce fluid flow in a downstream direction;
• and
• a longitudinal distance between the intercept and the tapered region being greater than the first diameter.

A frac head comprising:

• a main body portion including an internal bore having a first diameter, the main body portion further including a plurality of side ports deployed thereabout, the side ports inserted into corresponding side bores in the main body portion, the side ports disposed to produce fluid flow in a downstream direction, a longitudinal distance between the side bores and a lower face of the main body being greater than the first diameter;
• an upper body portion mechanically coupled to an upstream face of the main body portion, the upper body portion including a top port disposed substantially coaxially with the internal bore;
• and
• a lower body portion mechanically coupled to a downstream face of the main body portion, the lower body including an internal bore having a tapered region that reduces the internal bore from the first diameter to a second diameter.