A fluid end block for attachment to a power end of a high pressure reciprocating pump includes a main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces. A web portion protrudes outwardly from the o
A fluid end block for attachment to a power end of a high pressure reciprocating pump includes a main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces. A web portion protrudes outwardly from the outwardly facing body forward face. The web portion may have an outwardly facing web forward face and a curvilinear side surface. The web portion may be integral with the main body portion. A plurality of bosses protrude from the web forward face and having a forward facing end. The plurality of bosses may be integral with the main body portion and the web portion. A plunger bore extends through one of the plurality of bosses configured to receive a reciprocating plunger.
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1. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising: a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and
1. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising: a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces connecting the forward face and the rear face;a web portion protruding outwardly from the outwardly facing body forward face, the web portion having an outwardly facing web forward face and a curvilinear side surface, the web portion being integral with the main body portion;a plurality of bosses protruding from the web forward face and having a forward facing end, the plurality of bosses being integral with the main body portion and the web portion; anda plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger, the plunger bore extending from the end of said one of the plurality of bosses to one of the plurality of chambers in the main body portion. 2. The fluid end block of claim 1, wherein the curvilinear side surface comprises a convex portion concentric with each of the plurality of bosses. 3. The fluid end block of claim 2, wherein the convex portion has a radius greater than a radius of each of the plurality of bosses. 4. The fluid end block of claim 1, wherein the main body portion comprises a tie rod hole disposed adjacent the web portion, the tie rod hole being disposed between undulating portions of the web portion. 5. The fluid end block of claim 4, wherein the undulating portions are a portion of the curvilinear side surface. 6. The fluid end block of claim 4, wherein the undulating portions is a part of a fillet connecting the curvilinear side surface of the web portion to the body forward face. 7. The fluid end block of claim 1, wherein each of the plurality of bosses has a first length measured from the web forward face to the end of the boss, and wherein the web portion has a second length measured from the body forward face to the web forward face, the first length being greater than the second length. 8. The fluid end block of claim 1, wherein the web portion extends across the body forward face from one of the opposing side surfaces to the other. 9. The fluid end block of claim 1, wherein the plurality of bosses are aligned in a row so that a single plane passes through a central axis formed by each of the plurality of bosses. 10. The fluid end block of claim 1, wherein the curvilinear side surface of the web portion is perpendicular to the body forward face and perpendicular to the web forward face. 11. The fluid end block of claim 1, wherein each of the plurality of bosses comprises an outer surface portion having a first diameter adjacent the forward facing end and having a second diameter adjacent the web portion, the second diameter being greater than the first diameter. 12. The fluid end block of claim 1, wherein the curvilinear side surface is an upper side surface, the fluid end block comprising a curvilinear lower side surface, wherein the curvilinear upper side surface mirrors the curvilinear lower side surface. 13. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising: a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing rear face opposite the body forward face, and opposing side surfaces connecting the body forward face and the rear face;a plurality of bosses supported by the main body portion and having a forward facing end, the plurality of bosses being integral with the main body portion and having an outer diameter at the forward facing end;a web portion protruding outwardly from the outwardly facing body forward face of the main body portion, the web portion having a longitudinal length and a transverse height, the web portion joining each of the plurality of bosses to each other, the transverse height of the web portion being greater than the outer diameter of the plurality of bosses; anda plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger, the plunger bore extending from the end of said one of the plurality of bosses to one of the plurality of chambers in the main body portion. 14. The fluid end block of claim 13, wherein the web portion comprises a curvilinear side surface comprising a convex portion concentric with each of the plurality of bosses. 15. The fluid end block of claim 14, wherein the convex portion of the web portion has a radius greater than a radius of each of the plurality of bosses. 16. The fluid end block of claim 13, wherein the main body portion comprises a tie rod hole disposed adjacent the web portion, the tie rod hole being disposed between undulating portions of the web portion. 17. The fluid end block of claim 16, wherein the undulating portions are curvilinear side surfaces. 18. The fluid end block of claim 16, wherein the undulating portions are part of a fillet connecting a curvilinear side surface of the web to the body forward face. 19. The fluid end block of claim 13, wherein each of the plurality of bosses has a first length measured from a web forward face to the end of the boss, and wherein the web portion has a second length measured from the body forward face to the web forward face, the first length being greater than the second length. 20. The fluid end block of claim 13, wherein the web portion extends entirely across the body forward face from one of the opposing side surfaces to the other. 21. The fluid end block of claim 13, wherein the plurality of bosses are aligned in a row so that a single plane passes through a central axis formed by each of the plurality of bosses. 22. The fluid end block of claim 13, wherein the web portion comprises upper and lower side surfaces and a web forward face, the upper and lower side surfaces being perpendicular to the body forward face and perpendicular to the web forward face. 23. The fluid end block of claim 13, wherein each of the plurality of bosses comprises an outer surface portion having a first diameter adjacent the forward facing end and a second diameter adjacent the web portion, the second diameter being greater than the first diameter. 24. The fluid end block of claim 13, wherein the web portion comprises curvilinear upper and lower side surfaces and a web forward face, wherein the curvilinear upper side surface mirrors the curvilinear lower side surface. 25. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising: a main body portion having an outwardly facing body forward face, an outwardly facing rear face opposite the body forward face, and opposing side surfaces connecting the body forward face and the rear face, the main body portion comprising a plurality of tie rod holes configured to receive tie rods connecting the fluid end block to the power end of a high pressure reciprocating pump;a web portion protruding outwardly from the body forward face of the main body portion, the web portion having an curvilinear portion adjacent the tie rod holes, the curvilinear portion being shaped and disposed so that at least one of the tie rod holes is disposed between peaks of the curvilinear portion, the web portion being integrally formed with the main body portion;a plurality of bosses on the web portion, the plurality of bosses being integrally formed with the web portion and the main body portion; anda plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger. 26. The fluid end block of claim 25, wherein the curvilinear portion comprises a convex portion concentric with each of the plurality of bosses. 27. The fluid end block of claim 26, wherein the convex portion has a radius greater than a radius of each of the plurality of bosses. 28. The fluid end block of claim 25, wherein the curvilinear portion comprises a curvilinear side surface. 29. The fluid end block of claim 25, wherein the curvilinear portion comprises a fillet connecting a side surface of the web portion to the body forward face. 30. The fluid end block of claim 25, wherein each of the plurality of bosses has an end and the web portion has a web forward face, each of the plurality of bosses having a first length measured from the web forward face to the end of the boss, and the web portion having a second length measured from the body forward face to the web forward face, the first length being greater than the second length. 31. The fluid end block of claim 25, wherein the web portion extends entirely across the body forward face from one of the opposing side surfaces to the other. 32. The fluid end block of claim 25, wherein the plurality of bosses are aligned in a row so that a single plane passes through a central axis formed by each of the plurality of bosses. 33. The fluid end block of claim 25, wherein the curvilinear portion comprises a side surface of the web portion perpendicular to the body forward face. 34. The fluid end block of claim 25, wherein each of the plurality of bosses comprises an outer surface portion having a first diameter adjacent the forward facing end and a second diameter adjacent the web portion, the second diameter being greater than the first diameter. 35. The fluid end block of claim 25, wherein the curvilinear portion comprises a curvilinear upper side surface and a curvilinear lower side surface, wherein the curvilinear upper side surface mirrors the curvilinear lower side surface. 36. The fluid end block of claim 25, wherein the web portion is devoid of tie rod receiving holes. 37. A fluid end block for attachment to a power end of a high pressure reciprocating pump, comprising: a main body portion having a plurality of chambers therein, the main body portion having an outwardly facing body forward face, an outwardly facing rear face opposite the body forward face, and opposing side surfaces connecting the body forward face and the rear face, the main body portion comprising a plurality of tie rod holes configured to receive tie rods connecting the fluid end block to a power end of a high pressure reciprocating pump;a web portion protruding outwardly from the outwardly facing body forward face, the web portion having an outwardly facing web forward face, an upper curvilinear side surface, and a lower curvilinear side surface mirroring the upper curvilinear side surface, the upper and lower curvilinear side surfaces having convex and concave portions, the web portion extending continuously from one of the opposing side surfaces of the main body portion to the other, and being integrally formed with the main body portion;a plurality of bosses protruding from the web forward face and having a forward facing end, each of the plurality of bosses having an end, a first region of a first diameter adjacent the end, and a second region of a second diameter adjacent the web portion, the second diameter being greater than the first diameter, the plurality of bosses being integral with the main body portion and the web portion, and wherein the convex portions of the upper and lower curvilinear side surfaces are concentric with the second region of each of the plurality of bosses, and wherein the concave portions of the upper and lower curvilinear side surfaces accommodate the tie rod holes so that the tie rod holes are disposed between portions of the web portion; anda plunger bore extending through one of the plurality of bosses configured to receive a reciprocating plunger, the plunger bore extending from the end of one of the plurality of bosses to one of the plurality of chambers in the main body portion. 38. The fluid end block of claim 37, wherein the tie rod holes are disposed between portions of a fillet connecting the curvilinear side surface of the web portion to the body forward face. 39. The fluid end block of claim 38, wherein the tie rod holes are disposed between portions of the curvilinear upper side surface of the web portion. 40. The fluid end block of claim 37, wherein each of the plurality of bosses has a first length measured from the web forward face to the end of the boss, and wherein the web portion has a second length measured from the body forward face to the web forward face, the first length being greater than the second length. 41. The fluid end block of claim 37, wherein the curvilinear side surface of the web portion is perpendicular to the body forward face and perpendicular to the web forward face. 42. A pump subassembly, comprising: a fluid end block having forward and rearward sides, two outboard sides, a bottom, and a top;a plurality of bosses protruding in a forward direction from the forward side, the bosses comprising an outboard boss adjacent each of the outboard sides, and at least one intermediate boss located between the outboard bosses;a plunger bore extending into the fluid end block from each of the bosses for receiving a reciprocating plunger, each of the plunger bores having a forward end with internal threads;a web extending from the forward side of the fluid end block, the web having an outboard portion extending from each of the outboard sides to each of the outboard bosses, the web having an intermediate portion extending between adjacent ones of the bosses;the web having an upper side and a lower side, with a dimension between the upper and lower sides that is less than an outer diameter of any one of the bosses; and whereinthe fluid end block, the bosses and the webs are integrally joined to each other and comprise a single-piece member formed of a steel alloy. 43. The subassembly according to claim 42, wherein: the web has a forward face that is located forward from the forward side of the fluid end block a distance that is less than a distance from the forward end of each of the bosses to the forward side of the fluid end block. 44. The subassembly according to claim 42, further comprising: a continuous upper fillet extending without interruption from one of the outboard sides to the other of the outboard sides, the upper fillet joining the upper sides of the web to the forward side of the fluid end block and joining upper circumferential portions of the bosses to the forward side; anda continuous lower fillet extending without interruption from one of the outboard sides to the other of the outboard sides, the lower fillet joining the tower sides of the web to the forward side of the fluid end block and joining lower circumferential portions of the bosses to the forward side.
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