The Weatherford WDD 650 is an HDD mud pump rated at 5120 PSI max working pressure and 275.4 GPM max flow, with 650 HP rated input power, a 7.5 in stroke and a rated speed of 250 SPM. Its factory liner chart spans eight sizes: a 6 in liner delivers 275.4 GPM at up to 1705 PSI, a 5 in liner 191.6 GPM at up to 2450 PSI, a 4 in liner 122.6 GPM at up to 3830 PSI, and the smallest 3.25 in liner reaches the full 5120 PSI at 80.8 GPM. This wide liner range lets operators match the pump to anything from high-volume pilot bores to high-pressure reaming and pullback. We supply replacement fluid-end parts for the WDD 650 to drilling contractors across Canada, the United States and international oil and gas markets.
FAQ
What are the factory ratings of the Weatherford WDD 650?
The WDD 650 is rated at 5120 PSI max working pressure, 275.4 GPM max flow, 650 HP rated input power, a 7.5 in stroke and 250 SPM rated speed, per the manufacturer spec sheet.
What liner sizes are available for the WDD 650?
The factory chart lists 6 in, 5.5 in, 5 in, 4.5 in, 4 in, 3.5 in and 3.25 in liners, trading flow against pressure from 275.4 GPM at 1705 PSI with the 6 in liner up to 5120 PSI with the 3.25 in liner.
How do I choose a liner size for my WDD 650 HDD job?
Pick by duty stage: larger liners such as 6 in or 5.5 in maximize flow for pilot bores and cuttings transport, while smaller liners such as 4 in or 3.25 in raise available pressure for long or difficult bores. Share your program with us and we will confirm the right setup.
Do you stock fluid-end parts for the Weatherford WDD 650?
We supply replacement liners, pistons, valves, valve seats, packing and related fluid-end wear parts for the WDD 650. Contact us with your liner size and parts list for availability.
Can WDD 650 parts be shipped to Canada, the US or overseas?
Yes. We ship to Canada, the United States and international oil and gas destinations, and pump parts are typically classified under HS code 84139100.