VALVE
Stainless Steel Valve Castings Manufacturer & Precision Machined Components Supplier
We manufacture stainless steel valve bodies, discs, stems, bonnets, and other custom valve components using silica sol investment casting and CNC machining. Our supply options include raw castings and machined components produced to customer drawings, material specifications, dimensional tolerances, and inspection requirements.
Designed for industrial fluid control applications, our valve castings can be manufactured in stainless steel and duplex stainless steel grades for specified pressure, temperature, and media conditions. Material selection, machining requirements, and inspection criteria are reviewed against the intended application and applicable product standards.
-
![NEEDLE VALVE]()
NEEDLE VALVENeedle valves are all about fine throttling. The internal orifice takes massive fluid friction and high pressure. Cheap suppliers use sand casting because it is cheap. Never do that for precision...read more -
![CHECK VALVE]()
CHECK VALVEThe valve body, clapper, and seat must handle constant backflow pressure and rapid water hammer impacts. Cheap suppliers use sand casting because it is cheap. Never use sand-cast parts for...read more -
![GATE VALVE]()
GATE VALVEFor heavy-duty gate valves, internal wall porosity is where all the failures and leaks happen. The valve body and bonnet must handle high pressure and constant fluid flow [1]. Cheap suppliers use...read more -
![Valve Casting]()
Valve CastingWUDI COUNTY SHUN YE STAINLESS STEEL PRODUCTS CO., LTD. specializes in manufacturing high-quality stainless steel valve castings using advanced silica sol investment casting technology. Our valve...read more
Product Range
|
Valve Component Type |
Valve Types Covered |
Typical Size Range |
Reference Pressure Class |
|
Ball Valve Bodies and Balls |
1-piece, 2-piece, and 3-piece ball valves; flanged and threaded configurations |
DN8–DN150 (1/4–6 in) |
Class 150–600 / PN16–PN100, subject to design requirements |
|
Gate and Globe Valve Bodies |
Rising-stem and bolted-bonnet configurations |
DN15–DN200 (1/2–8 in) |
Class 150–300 / PN10–PN40, subject to design requirements |
|
Check Valve Components |
Swing, dual-plate, and lift check valves |
DN15–DN200 (1/2–8 in) |
Class 150–300 / PN16–PN40, subject to design requirements |
|
Needle and Control Valve Components |
Fine-throttling and pneumatic control valve bodies |
DN6–DN50 (1/8–2 in) |
Up to 6,000 psi for specified designs |
|
Strainers and Accessories |
Y-strainer bodies, lever handles, and Tri-Clamp ferrules |
Customized to drawings |
According to applicable design and connection specifications |
Materials and Technical Specifications
|
Material Category |
Casting Grade / Material Specification |
Typical Application Considerations |
|
Austenitic Stainless Steel |
CF8; CF8M |
General industrial fluid handling, water, and specified chemical services |
|
Low-Carbon Stainless Steel Casting |
CF3M |
Applications requiring a low-carbon cast stainless steel grade, including specified welded assemblies |
|
Duplex Stainless Steel |
Duplex 2205; Super Duplex 2507 |
Specified chloride-bearing, marine, and offshore applications, subject to corrosion and mechanical requirements |
CF8, CF8M, and CF3M are casting grades. Their relationship to wrought stainless steel grades such as 304, 316, and 316L is approximate rather than an automatic one-to-one equivalence. Where a particular material standard or grade is required, the purchase specification should identify the required casting grade and applicable material requirements.
Silica Sol Shell Molding: Yields smooth surface finishes (Ra 3.2 to Ra 6.3 microns) and tight wall-thickness uniformity.
Heat Treatment: Solution annealing at 1050 degrees C to 1100 degrees C followed by rapid water quenching to restore maximum corrosion resistance and mechanical strength.
CNC Precision Machining: In-house 4-axis CNC machining centers, CNC lathes, and thread cutting machines process critical seal faces, valve seats, and flange grooves to exact drawing limits.
Zero-leakage reliability requires strict verification at both raw casting and finished machining stages.
Spectrometer Heat Test -> Radiographic / NDT Inspection -> Dimensions via CMM -> 100% Hydrostatic Test
Chemical Analysis: Spectrometer heat code testing before ladle pouring.
Internal Defect Detection: Radiographic Testing (RT) and Dye Penetrant Testing (PT) to catch subsurface gas porosity and shrink cavities.
Dimensional Integrity: Coordinate Measuring Machines (CMM) and optical profile projectors check critical sealing faces and mounting patterns.
Pressure Integrity: 100% hydrostatic and pneumatic pressure testing for fully machined valve body assemblies per API 598 or EN 12266-1 standards.
OEM Customization Process
Drawing and DFM Review
Submit 2D engineering drawings and available 3D CAD files for review of casting feasibility, wall-thickness transitions, machining allowances, critical dimensions, and inspection requirements. Review turnaround is subject to project complexity and engineering availability.
Tooling and Pattern Development
Tooling and wax-pattern arrangements are determined according to the component geometry, production volume, and confirmed manufacturing capabilities.
Sample Production and Validation
Initial samples can be inspected against agreed dimensional, material, and surface requirements. CMM reports and material documentation are supplied when included in the project inspection plan.
Production Approval
Batch production begins after the customer approves the sample or first article and confirms the applicable specifications, inspection plan, and order requirements.
Production Capacity and Delivery
Monthly Capacity: 150 metric tons of finished precision castings.
Sample Lead Time: 15 to 20 days (tooling fabrication plus initial sample approval).
Mass Production Lead Time: 30 to 40 days following sample sign-off.
Packaging: VCI anti-rust paper wrapping, individual cardboard slot dividers, and ISPM 15 compliant heat-treated wooden crates for ocean freight protection.
WUDI COUNTY SHUN YE STAINLESS STEEL PRODUCTS CO.,LTD. is one of the most professional valve manufacturers and suppliers in China, also supports customized service. Welcome to buy bulk cheap valve made in China here and get quotation from our factory. For price consultation, contact us.
pneumatic control valve, valve for water treatment, welded industrial valve