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07/01

The BW-250 mud pump is not delivering fluid and has low pressure.

The BW-250 mud pump is not delivering fluid and has low pressure.

The BW250 mud pump fails to deliver fluid and exhibits low pressure—two common issues encountered by many users. As a seasoned manufacturer of mud pumps, we’d like to address these problems. First, this issue typically arises after the pump has been in service for some time; it does not occur immediately upon initial installation. The BW‑250 mud pump has a straightforward design, consisting primarily of three major components: the crankcase, the pump head, and the power end. Like all mud pumps, it includes several wear parts, such as cylinder liners, pistons, piston seats, connecting rods, tie rods, the crankshaft, rod bearings, crossheads, and inlet/outlet valve seats. If the pump stops delivering fluid or its flow rate declines, begin by checking for leaks. If no obvious leaks are present, remove the cylinder head cover by loosening the four front bolts with a wrench, then inspect the piston and valve seats for wear. You may notice small gaps between the piston and cylinder liner; in such cases, the piston should be replaced. Use the specialized tools provided in the pump’s spare‑parts kit to perform the replacement, reinstall the components, and verify that the problem has been resolved.

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