DLSY (Shijiazhuang Dongli Petroleum Machinery) supplies 133 distinct replacement items for the Oilwell A-850-PT, a horizontal triplex single-acting piston mud pump rated at 850 HP with a 9 in stroke, 160 SPM rated speed, 5000 PSI maximum working pressure and 826 GPM maximum flow. Our stock covers 22 liner, 18 valve, 7 spring and 8 piston items, including high-temperature pistons and liner gaskets from 5 in to 6.5 in. Parts are export-packed under HS code 84139100 for Canada, the United States and international oil & gas markets.
FAQ
Which A-850-PT parts does DLSY have available?
We list 133 distinct items for this pump: 22 liner items, 18 valve items, 8 piston items and 7 spring items, plus liner gaskets and valve cover gaskets (for example part 10300011).
What piston and liner sizes are available for the A-850-PT?
We stock pistons in 5 in, 5.5 in, 6 in and 6.5 in, including high-temperature versions (parts 2002150280 through 2002150780), and matching liner gaskets from 5 in to 6.5 in. The factory performance table covers liners from 4 in to 7 in.
What are the A-850-PT factory ratings?
Rated input power 850 HP, stroke length 9 in, rated speed 160 SPM, maximum working pressure 5000 PSI and maximum flow 826 GPM. For example, a 4 in liner delivers 235 GPM at up to 5000 PSI, while a 7 in liner delivers 720 GPM at up to 1819 PSI.
Are your parts compatible with the original Oilwell A-850-PT?
Yes. Our parts are replacement items made to fit the A-850-PT fluid end and power end; order by the OEM part number from your parts manual and we will verify the cross-reference.
When should I choose high-temperature pistons?
High-temperature type pistons and liner gaskets suit demanding mud conditions where standard elastomers age quickly. Actual service life depends on mud properties, pressure and maintenance rather than a fixed hour figure.
Do you export A-850-PT parts?
Yes, we ship to Canada, the United States and international oil & gas markets under HS code 84139100 with export packing.