One-stop sourcing for oil-immersed transformer accessories — from gas relays to breathers.
Yuan Global Trade supplies Buchholz relays, pressure relief valves, oil level indicators, moisture absorbers and 10+ accessory lines, manufactured by ISO 9001-certified partners in Shenyang, China. Quotes within 24 hours. Small orders and mixed loading welcome.
Product Lines
Full-range accessories for oil-immersed power transformers. Every product ships with inspection records; size charts and datasheets available on request.
Buchholz Gas Relay
QJ series double-float gas relays for oil-immersed transformers. Gas accumulation & oil surge protection.
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Pressure Relief Valve
YSF series spring-loaded valves protect tanks from excessive internal pressure.
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Oil Level Indicator
Pointer-type magnetic indicators for conservator tanks, with low-level alarm option.
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Moisture Absorber
YC series breathers with silica gel keep incoming air dry for conservator systems.
View specs →Also in the range: conservator rubber capsules, dry-type cooling fans, oil flow relays, gas sampling devices, weather covers, butterfly and drain valves, gasket sets — see the full accessories range.
Running or maintaining a distribution substation? See spare parts for 33/11 kV distribution substations — mixed lines, one shipment. Or browse by scenario and region on the applications pages.
Why Buy From Yuan Global Trade
We are a supply-chain specialist, not a middleman that adds cost. Here is what that means for your projects.
Quotes within 24 hours
Send a nameplate photo or a model number — you get a priced offer with datasheet within one business day.
Small & mixed orders
Order 5 relays + 20 breathers + spare gaskets in one shipment. We consolidate from multiple production lines so you save freight.
ISO 9001-certified manufacturing
Products come from audited manufacturing partners in Shenyang with 25+ years of grid-scale production history.
Pre-shipment inspection
Every order ships with inspection records. Third-party inspection (SGS / BV / TÜV) welcome before loading.
Datasheets & size charts
Installation dimension tables and selection guides in PDF — the documents your engineering team actually needs.
Export experience
Regular shipments to the Middle East, Southeast Asia and South Asia. We handle export documents end to end.
How Ordering Works
Four steps, typical lead time TBD* days after order confirmation.
Send inquiry
Model number, quantity, destination port. A nameplate photo works too.
Get offer
Quotation with datasheet, FOB/CIF options, within 24h.
Confirm & inspect
Proforma invoice → production → photos + inspection records before packing.
Ship
Export documents, customs clearance support, spare-parts follow-up.
Have a model number or a nameplate photo?
Send it over — we reply within one business day.