Control Valve Bonnet is a sand casting component supplied by Ningbo Ruican for water, oil, gas and process pipelines. Cast in Carbon Steel WCB, the part achieves stable dimensional accuracy and long service life under continuous industrial piping and flow control workloads. Each casting is fully CNC machined where required and inspected against EN standards, with heat-number traceability from melt to finished part. OEM and ODM drawings in STEP, IGES or PDF are welcome, and samples can be arranged before volume production.
Specifications
| Parameter | Value |
|---|---|
| Material | Carbon Steel WCB (ASTM A216) |
| Casting Process | Sand Casting |
| Weight Range | 0.5 – 120 kg |
| Dimension Tolerance | ISO 8062 CT10-CT12 |
| Surface Treatment | Shot blasting + epoxy primer |
Key features
- As-cast tolerance ISO 8062 CT10-CT12 with CNC machining to drawing tolerances
- Carbon Steel WCB melt with furnace-number traceability for every batch
- Surface finished by shot blasting + epoxy primer
- One-stop service: casting, machining, drilling, tapping and coating
- Low-to-mid volume OEM/ODM production with stable lead times
Applications
- Oil and gas transmission lines
- Chemical and process industries
- HVAC and fire-protection systems
- Power plant and marine piping
- Water supply and drainage pipelines
Quality & compliance
Valve components are cast to ASTM A216 / A351 / EN 1563 as applicable, under ISO 9001. Seat faces and sealing areas are machined to tight tolerance, pressure-relevant castings can be hydrotested, and all heats are traceable.
FAQ
What is the MOQ for control valve bonnet?
MOQ starts from 50-100 pcs depending on size and process. Sample batches and prototype castings are welcome for validation.
What tolerances can you hold on the control valve bonnet?
As-cast tolerance follows ISO 8062; critical faces are CNC machined to drawing tolerance, typically IT7-IT9.
Can you provide material certificates?
Yes. Each batch ships with EN 10204 3.1 material certificates and full heat-number traceability.
Need a quote for control valve bonnet? Send your drawing to sales@cnsandcasting.com or WhatsApp +86 137 7712 4360 for a fast RFQ response from Ningbo Ruican.
