Valve PartsValve body · Bonnet
Internal flow passages are cast in one operation, with sealing faces and threads finish-machined on CNC, reducing the accumulated error of multiple setups.
WCBCF8 / CF8M304 / 316 / 316L
Products
Valve parts and pipe fittings are the core, alongside mechanical structural parts, wear- and load-bearing parts, gear and transmission parts, automotive and farm machinery parts and general hardware. Most orders are non-standard work made to drawing, with material, dimensions and surface treatment executed to the customer drawing.
【The product images below are AI-generated placeholders. Before the site goes live, replace them with real product photographs (3–5 shots from the same angle to choose from).】
Valve Parts
Valve PartsDisc · Handwheel · Operating parts
Valve parts that contact the medium or carry load; polishing and pickling/passivation available to drawing.
304 / 316Polished
Pipe FittingsElbow · Tee · Reducer
Fittings that change flow direction or pipe size; the bore is cast with a core in one step and both welding ends are machined to drawing.
304 / 316LMachined to drawing
Pipe FittingsFitting · Flange
Sealing faces and hole patterns are finish-machined. If you need threads, air-tightness or hydrostatic testing, please state the requirement when ordering.
WCBCF8MThread machining
Structural partsHousing · Bracket · Bearing housing
Welded or multi-part assembled structures can be merged into a single casting, cutting process steps and assembly error.
25 steel45 steelWCB
Cast steel partsCarbon steel · cast steel load-bearing parts
Standard castings in 25 steel, A3 and 45 steel, suited to load-bearing parts and to parts that will later be quenched and tempered.
A3 (Q235)Heat treatment
Wear PartsLiner · Bushing · Guide plate
For scheduled replacement of wear parts. Carbon steel and cast steel grades are available, and hardness and heat treatment requirements can be met.
45 steelWCB
Gears and drive partsGear · Sprocket · Coupling
Small-module gears, sprockets and transmission housings. After the rough casting, tooth profiles and fit faces are completed by fine turning or gear shaping, with one schedule and no multi-party coordination.
45 steelWCBAnnealing
Auto & farm machinery partsBracket · Pump body · Chassis part
Supplying the wide part range of the service and aftermarket. For volume supply of automotive assemblies, please submit drawings first; we will reply on feasibility and capacity after evaluation.
25 / 45 steelWCBPickled surface
HardwareGeneral hardware · decorative parts
Furniture hardware, handrail fittings and equipment accessories, produced on multi-cavity trees for stable dimensional consistency.
201 / 202304Polished
Custom partsFrom drawing · From sample
Most orders fall into this custom category. A drawing or a physical sample is enough; a processability review opinion is issued before the quotation.
Made to drawingReverse engineeringDFM review
Custom Flow · Made to order
From a single drawing to volume delivery
01
Drawing review · Quotation
We run a free casting DFM review on receipt of the drawing; with a complete data package the quotation comes in 1 – 3 working days
02
Tooling development
We make the wax injection mold and set the gating and riser and the wax tree assembly method, completed in 7 – 12 days
03
Sample approval
First articles are sent with chemistry and dimensional inspection data; the design is frozen once you sign off the sample, 15 – 25 days
04
Volume delivery
Production to order, then annealing and pickling, and packing and shipping after inspection passes, 30 – 45 days
Material Guide · Choosing a grade
Standard Grades and Their Service Conditions
The table below lists the grades we produce routinely and their typical fields of use. If you can provide service conditions such as medium, temperature, loading and service life, we can propose candidate grades on that basis with a cost comparison.
| Service conditions | Recommended grade | Notes |
|---|---|---|
| General structural parts where cost comes first | A3 (Q235) · 25 steel | Ordinary carbon steel; mature process, lowest cost |
| Load-bearing + needs quenching and tempering | 45 steel | Medium-carbon steel; heat treatment raises strength and hardness |
| Pressure valve bodies · pipe fittings | WCB | Cast carbon steel for general engineering; the most widely used grade in the valve industry |
| Decorative parts · indoor hardware · mild corrosion resistance | 201 · 202 | Nickel-reduced stainless steel; corrosion resistance below 304, at lower cost |
| General corrosion resistance · food contact | 304 / 304L → CF8 casting | Our workhorse grade, balancing properties and cost |
| Chemical media · chloride environments | 316 / 316L → CF8M casting | Higher molybdenum improves pitting resistance; common on export parts |
Duplex stainless, superalloys, aluminium alloys and copper alloys fall outside our routine production range. If you genuinely require them, please provide drawings and technical conditions; we will reply formally after assessing the feasibility of melting and shell building, and we make no order commitment for grades outside that assessment.
Custom parts and non-standard drawings welcome for evaluation
Among the castings we deliver, most are custom parts made to customer drawings. Please provide the drawing and the service conditions; we first issue a review opinion on castability, process route and cost build-up, then move to quotation.