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Brass Pipe Fittings for Wholesale Buyers: Solder Ends, Sizes & China Factory Sourcing
Brass pipe fittings sit next to valves on every plumbing wholesaler’s buy sheet. This article maps what a China brass factory actually lists under pipe fittings — solder-to-thread transitions, size mixes, and how to RFQ without inventing pressure ratings — using the live catalog of General Ball Valve Factory.
Where brass pipe fittings sit in a wholesale assortment
Search volume for “brass pipe fittings” is high because the phrase covers sockets, elbows, tees, adapters, and wall plates used wherever copper tube meets threaded valves or fixtures. For B2B buyers, the purchase decision is rarely one elbow — it is a size ladder (commonly 15 mm and 22 mm copper-side ends in UK/EU-style catalogs) plus female or male thread mates that match local valve inventories.
General Ball Valve Factory manufactures brass fittings and brass valves from Yuhuan, Zhejiang, with hot forging, sand casting, and CNC machining. About 95% of products are stated as exported to Europe, North America, and other developed countries. Pipe fittings appear as a dedicated family beside compression, press, PEX, hose, and quick-coupling lines — so a distributor can consolidate brass SKUs with one forge-backed supplier instead of splitting freight across three traders.
Industry-typical context (clearly labeled — not a factory pressure claim): solder-joint brass fittings for copper tube are selected to match tube OD standards used in the destination market, then paired with BSP/ISO or NPT threads on the valve side. Always confirm tube standard and thread gauge on the purchase order. The factory’s published pipe-fitting intros emphasize geometry and size, not PN/WOG numbers — so engineering files that need a pressure rating must request it explicitly.
Who buys these SKUs (and who should not)
Fit is strongest for:
- Plumbing wholesalers stocking copper-system transitions next to ball valves and angle stops.
- HVAC distributors connecting copper runs to threaded zone valves or boiler trim.
- Private-label sanitary brands that need wall-plate elbows matched to trim kits and logo cartons.
- Importers consolidating brass programs who already buy valves from Yuhuan and want fittings in the same container.
Lower fit without extra confirmation: oil-and-gas flanged piping, stainless hygienic Tri-Clamp systems, or US lead-free potable programs that require NSF-listed alloys the live site does not claim. Those buyers should open a separate compliance conversation before printing marketing copy.
Published pipe-fitting SKUs (sizes from the factory site)
The live brass pipe fittings category lists standard items. Product introductions on individual pages include:
| SKU | Type (site wording) | Published sizes |
|---|---|---|
| 3201 | Solder × male socket, brass | 15mm×1/2"M, 22mm×3/4"M |
| 3202 | Solder × female socket, brass | 15mm×1/2"F, 22mm×3/4"F |
| 3203 | Solder × female elbow, brass | 15mm×1/2"F, 22mm×3/4"F |
| 3204 | Solder × female tee, brass | 15mm×1/2"F×15mm, 22mm×3/4"F×22mm |
| 3205 | Solder × female elbow, wall plate, brass | 15mm×1/2"F, 22mm×3/4"F |
These five SKUs are the pipe-fittings family items documented on the live site. Preview planning counts listed about five standard pipe-fitting items. Do not assume undocumented sizes exist without asking — but the factory does state willingness to open new moulds to drawings when a standard item is insufficient.
Solder × thread transitions: what buyers must specify
Every published pipe-fitting SKU above is a solder end paired with a threaded end (male or female). That pattern is deliberate: copper tube on one side, valve or fixture thread on the other.
Specify clearly in the RFQ
- Copper-side OD / designation: 15 mm and 22 mm appear repeatedly — confirm whether your market uses those tube sizes or imperial equivalents that need different cups.
- Thread gender: M vs F changes inventory; SKU 3201 (male) vs 3202–3205 (female) are not interchangeable on the shelf.
- Geometry: straight socket vs elbow vs tee vs wall-plate elbow — wall plates affect rough-in spacing and trim kits.
- Thread standard: Sampled pipe-fitting intros do not print “ISO228” the way several ball-valve pages do. State BSPP/BSPT/NPT/ISO requirements and request gauge confirmation on samples.
- Soldering practice (industry typical): Use flux and solder compatible with potable or heating service per local code. Factory pages do not publish solder alloy recommendations — follow your market code and print bag instructions only after you validate them.
What not to invent on datasheets
Product pages reviewed for 3201–3205 do not list working pressure. Do not copy a 5 bar figure from a gas ball valve onto pipe fittings. If your engineering file requires a rating, ask for test pressure documentation on the quotation.
Incoming inspection points for solder-cup fittings
Wholesalers that skip first-article checks pay later in returns. A practical receiving checklist:
- Measure solder-cup ID against your copper tube OD with a calibrated gauge — not a ruler photo.
- Check thread pitch and major diameter with the correct ring/plug gauge for the stated standard.
- Inspect cup depth consistency across a 20-piece sample from each size.
- For wall-plate elbows (3205), verify plate hole centers against your trim kit drawing.
- Review packing: moisture barrier, size labels, and whether mixed sizes are segregated.
- Confirm logo/marking placement if private label — the factory FAQ includes packing, logos, and approval marks in finished QC.
Bundling pipe fittings with valves & compression lines
Importers reduce freight cost and supplier risk by buying brass as a program:
- Brass ball valves — shutoff next to soldered copper runs
- Brass compression fittings — flame-free joints on the same aisle
- Angle valves and bibcocks — fixture and outdoor taps
- Press fittings / PEX fittings — for markets shifting away from solder
- Hose fittings and quick couplings — garden and utility attach rates
Factory positioning explicitly welcomes new moulds to client drawings when a standard socket/elbow/tee is not enough — useful for private-label wall plates or market-specific thread lengths.
| Buyer scenario | Pipe fittings role | Ask the factory for |
|---|---|---|
| UK/EU copper plumbing wholesaler | 15/22 mm solder × BSP-family threads | Samples of 3201–3205; thread gauge report |
| Private-label sanitary brand | Wall-plate elbows matching trim kits | Logo on body/carton; mould ownership terms |
| Project importer | Match valves + fittings in one container | Combined packing list; mixed SKU MOQ |
| Heating distributor | Transitions near radiator valves / manifolds | Cross-reference to radiator & manifold families |
Material & process context from the factory FAQ
Main material stated: common brass Cu 57–59%, Pb ≤3%, Fe ≤0.8%, Ni ≤1%; other brass or bronze available. Processes: hot forging, sand casting, CNC / precision machining. QC described as in-house from material analysis through finished measure/test including packing and logos. Samples usually free; lead time about 15 days for smaller quantity, about 1 month for large; quotes reference material price with adjustment if metal moves before order; response within 24 hours claimed. ISO 9001:2000 authorization appears in site wording — confirm the current certificate revision on audit rather than reprinting an outdated year in your brochure.
For markets with strict lead-free potable rules, treat the published common-brass chemistry as a disclosure. Request alternatives and independent testing rather than assuming NSF-style compliance that is not claimed on the pages reviewed.
Wholesale RFQ template for brass pipe fittings
- List SKUs 3201–3205 (or drawings) with size splits and annual forecast.
- State copper tube standard and thread standard/gender for each line.
- Confirm wall-plate dimensions if trim kits are involved.
- Request material certification vs FAQ composition; ask bronze option if required.
- Ask for working/test pressure documentation if engineering needs it (not published on these SKU intros).
- Define packing: poly bag, barcode, brand carton, mixed-size inner boxes.
- Request free samples and photos of solder cup ID and thread pitch.
- Clarify lead time for trial carton vs full container; Incoterms; material-price clause.
- If custom mould is needed, agree ownership, amortization, and first-article timeline in writing.
Request pipe-fitting samples
Use the factory contact channels and reference item numbers from the catalog.
Buyer Q&A
Are these NPT fittings?
The published introductions emphasize solder × male/female sizes (15 mm / 22 mm with 1/2" and 3/4" thread designations). They do not print “NPT” on the sampled intros. If you need NPT, say so and verify gauges on samples before you print NPT on cartons.
Can the factory custom-make a missing size?
Homepage/About copy states willingness to make a new mould fully according to client requirement, with R&D ability and CAD tools listed on the FAQ (AutoCAD, Pro-E, SolidWorks).
Same factory for valves?
Yes — brass ball valves, gas valves, angle valves, mini valves, bibcocks, and multiple fittings families share the products hub.
What about bronze pipe fittings?
The catalog includes a bronze fittings family and the FAQ says other brass or bronze are available. Ask for bronze specifically if your market or fluid requires it — do not assume every pipe-fitting SKU is offered in bronze by default.
Bottom line
Brass pipe fittings sourcing works when buyers RFQ against real SKUs and sizes — here, solder×thread sockets, elbows, tees, and wall plates in 15 mm and 22 mm pairings as published by General Ball Valve Factory. Pair them with compression and valve lines from the same plant, confirm thread gauges on first article, and keep pressure claims limited to what the factory documents per item.