The DL Mining DL420 is a three-cylinder mining pump rated at 1300 PSI max working pressure and 24.6 GPM max flow at a rated speed of 350 SPM. Its crankcase is produced as an integral casting in gray cast iron or ductile iron, a material choice that keeps costs under control while the graphite structure in the iron absorbs the high-frequency pulsating loads a triplex pump generates, helping prevent crack propagation. Internal reinforcing ribs support the bearing housings and crosshead guide areas against the lateral thrust transmitted by the connecting rods. We supply replacement fluid-end parts for the DL420 to mining and industrial customers across Canada, the United States and international markets.
FAQ
What are the factory ratings of the DL Mining DL420?
Per the manufacturer spec sheet, the DL420 is rated at 1300 PSI max working pressure and 24.6 GPM max flow at a rated speed of 350 SPM.
What type of pump is the DL420?
The DL420 is a three-cylinder mining pump with an integrally cast gray or ductile iron crankcase, designed to absorb the pulsating loads typical of triplex pump operation.
Why does the DL420 use a cast iron crankcase?
Cast iron offers good cost control and excellent damping capacity: its graphite structure absorbs high-frequency vibration from the three-cylinder pulsating load and helps prevent cracks from spreading, while internal ribs reinforce the bearing and crosshead guide areas.
Do you supply fluid-end parts for the DL Mining DL420?
Yes, we supply replacement liners, pistons, valves, valve seats, packing and other fluid-end wear parts for the DL420. Contact us with your parts list for availability.
Can DL420 parts be shipped to Canada, the US or overseas?
Yes. We serve Canada, the United States and international customers, and pump replacement parts are generally classified under HS code 84139100.