The Weatherford WDD 340 is an HDD mud pump rated at 2000 PSI max working pressure with 340 HP rated input power, a 5 in stroke and a rated speed of 350 SPM. Depending on liner size, discharge pressure capability ranges from 1300 PSI with a 4.5 in liner up to the full 2000 PSI with 3.5 in and 3 in liners. The power end is built around a fully supported crankshaft running on biconical main bearings with cylindrical central roller bearings, a layout that spreads load evenly and supports long service life. A built-in power end lubrication system keeps all moving parts supplied with oil even at low speeds or when the pump is mounted off-horizontal, reducing wear in tough field conditions. We supply replacement fluid-end parts for this model to drilling contractors across Canada, the United States and international oil and gas markets.
FAQ
What are the factory ratings of the Weatherford WDD 340?
The WDD 340 is rated at 2000 PSI max working pressure, 340 HP rated input power, a 5 in stroke and 350 SPM rated speed, per the manufacturer spec sheet.
Which liner sizes are available for the WDD 340?
The factory sheet lists 4.5 in, 4 in, 3.5 in and 3 in liners. The 4.5 in liner is rated to 1300 PSI max, the 4 in liner to 1650 PSI max, and both the 3.5 in and 3 in liners reach the full 2000 PSI.
Do you stock fluid-end parts for the Weatherford WDD 340?
We supply replacement fluid-end wear parts such as liners, pistons, valves, valve seats and packing for the WDD 340. Contact us with your liner size and part list for current availability.
Can WDD 340 parts be shipped to Canada or the United States?
Yes. We regularly ship to Canada, the US and international destinations. Pump parts are typically classified under HS code 84139100 for customs purposes.
What makes the WDD 340 power end durable in HDD duty?
Its fully supported crankshaft runs on biconical main bearings and cylindrical central roller bearings, and a built-in lubrication system keeps the power end oiled even at low speed or off-level mounting, which cuts wear on long HDD bores.