Shijiazhuang Dongli Petroleum Machinery (DLSY) supplies replacement parts for the W165-W435 series, including the spring Ø42x80, part 1285438, and the valve Ø55x50, part 1292169. Parts are exported under HS code 84139100 to contractors and distributors in Canada, the United States and international oil and gas markets.
FAQ
Which W165-W435 parts does DLSY stock?
We currently list two items: spring Ø42x80, part 1285438, and valve Ø55x50, part 1292169. Other replacement parts for this series can be quoted on request.
Are your W165-W435 parts compatible with the original equipment?
Yes. Parts 1285438 and 1292169 are manufactured as replacements matching the original dimensions. Share the part number or a drawing and we will confirm fit before shipment.
Are there published specifications for the W165-W435 series?
No factory specifications are published for this series. Ratings are available on request from our technical team.
When should the valve and spring be replaced?
Valves and springs are wear parts and should be inspected at each pump service. They are typically replaced when sealing performance or spring tension declines; actual service life depends on fluid properties and duty conditions.
Do you export W165-W435 parts internationally?
Yes. DLSY exports under HS code 84139100 to Canada, the United States and other international oil and gas markets, by sea or air freight.