Patent ID: 7628201

Claim:
A fracturing head comprising: a main body having a top end and a bottom end with a main bore in a flow path through which fluid is pumped from the top end to the bottom end of the fracturing head, with a plurality of main bore inserts that are aligned to provide a main bore that is fully lined with replaceable wear-resistant inserts; a retainer flange connected to the bottom end of the main body that retains the plurality of wear-resistant inserts within the main bore, the retainer flange having a retainer flange bore through which the flow path extends; and an annular sealing element disposed between each pair of abutting ends of the plurality of replaceable wear-resistant inserts to inhibit fracturing fluids pumped through the main bore from penetrating an annular gap between the abutting ends of the plurality of replaceable wear-resistant inserts.