Modular suction gland assembly
A positive displacement pump includes a suction cover disposed in a suction access bore defined in the fluid end and housing, where the suction cover is configured to cover the suction access bore. A retainer nut is configured for abutting against the suction cover and retaining the suction cover within the suction access bore. A suction gland has an inner circumferential threaded interface configured to engage an external circumferential threaded interface defined on the retainer nut, and the suction gland has a plurality of threaded openings configured to receive a plurality of threaded fasteners that can be used for securely fastening the suction gland to the fluid end housing.
1. A pump having a fluid end housing comprising:
a suction cover disposed in a suction access bore defined in a fluid end housing, the suction cover being configured to cover the suction access bore;
a retainer nut configured for abutting against the suction cover and retaining the suction cover within the suction access bore; and
a suction gland having defined therein a tubular cavity configured for being coaxially disposed within the suction access bore, the tubular cavity having an inner circumferential threaded interface configured to engage an external circumferential threaded interface on the retainer nut, the suction gland further having a plurality of threaded openings configured to receive a plurality of threaded fasteners configured for securely fastening the suction gland to the fluid end housing.
2. The pump of claim 1 , further comprising an annular seal disposed in an annular groove defined in an outer circumferential surface of the suction cover that is configured to interface and engage with an inner circumferential surface of the suction gland.
3. The pump of claim 1 , wherein the suction gland and the retainer nut extend beyond the fluid end housing.
4. The pump of claim 1 , wherein the threaded interfaces of the suction gland and the retainer nut extend beyond an outer surface of the fluid end housing when the retainer nut is rotatably engaged with the suction gland.
5. The pump of claim 1 , wherein the plurality of threaded openings in the suction gland are distributed about the tubular cavity in an offset manner.
6. The pump of claim 1 , further comprising an annular seal disposed in an annular groove defined in a surface of the modular suction gland that is configured to interface and engage with the fluid end housing.
7. The pump of claim 6 , wherein the annular seal comprises at least one of a face seal and a piston seal.
8. A modular suction gland assembly for a suction access bore defined in a fluid end housing of a reciprocating pump, comprising:
a suction cover configured to cover the suction access bore;
a retainer nut configured for abutting against the suction cover and retaining the suction cover within the suction access bore; and
a suction gland having defined therein a plurality of threaded openings configured to receive a plurality of threaded fasteners configured for securely fastening the suction gland about the suction access bore, the retainer nut being rotatably engageable with a threaded cavity of the suction gland to retain the suction cover within the suction access bore.
9. The modular suction gland assembly of claim 8 , wherein the suction gland has an inner circumferential threaded interface configured to engage an external circumferential threaded interface defined on the retainer nut.
10. The modular suction gland assembly of claim 8 , further an annular seal is disposed within an annular groove defined in an outer circumferential surface of the suction cover that engages an inner circumferential surface of the suction gland.
11. The modular suction gland assembly of claim 8 , wherein the suction gland and the retainer nut extend beyond an outer surface of the fluid end housing.
12. The modular suction gland assembly of claim 9 , wherein the threaded interfaces of the suction gland and the retainer nut extend beyond an outer surface of the fluid end housing when the retainer nut is rotatably engaged with the suction gland.
13. The modular suction gland assembly of claim 8 , wherein the plurality of threaded openings in the suction gland for engaging the plurality of threaded fasteners are distributed about the threaded cavity in an offset manner.
14. The modular suction gland assembly of claim 8 , further comprising an annular seal disposed in an annular groove defined in a surface of the modular suction gland that is configured to interface and engage with the fluid end housing.
15. The modular suction gland assembly of claim 8 , wherein the annular seal comprises at least one of a face seal and a piston seal.
16. A positive displacement pump having a power end coupled to a fluid end, the fluid end of the pump comprising:
a plurality of pressure chambers defined within the fluid end;
a plurality of suction access bores defined within the fluid end and each being in fluid communication with a respective one of the plurality of pressure chambers;
a plurality of suction access ports defined in the fluid end each being in fluid communication with a respective one of the plurality of suction access bores;
a plurality of suction covers each being disposed in a respective one of the plurality of suction access ports, each suction cover being configured to cover a respective suction access port;
a plurality of retainer nuts configured for abutting against a respective one of the plurality of suction covers and retaining the suction cover within the respective suction access bore and covering the suction access port; and
a plurality of modular suction glands each having defined therein a tubular cavity having an inner circumferential threaded interface configured to engage an external circumferential threaded interface defined on a respective one of the plurality of retainer nuts, each modular suction gland further having a plurality of threaded openings configured to receive a plurality of threaded fasteners configured for securely fastening the suction gland to the fluid end over a respective one of the plurality of suction access ports.
17. The pump of claim 16 , further comprising a plurality of seals each being disposed in an annular groove defined in an outer circumferential surface of a respective one of the plurality of suction covers that interfaces with an inner circumferential surface of a respective one of the plurality of the modular suction glands.
18. The pump of claim 16 , wherein each of the modular suction gland and the respective one of the retainer nut extend beyond an outer face of the fluid end.
19. The pump of claim 16 , wherein the threaded interfaces of each modular suction gland and the respective one of the retainer nut extend beyond an outer surface of the fluid end when the retainer nut is rotatably engaged with the suction gland.
20. The pump of claim 16 , wherein the plurality of threaded openings defined in each modular suction gland are distributed about the tubular cavity in an offset manner.
21. The pump of claim 16 , further comprising a plurality of seals each being disposed in an annular groove defined in a surface of a respective one of the plurality of modular suction glands that is configured to interface and engage with the fluid end.