OEM 1.4470 Double Eccentric Butterfly Valve Disc DN250 PN16
Our butterfly valve discs are precision‑cast and machined, double‑lug concentric structure, mirror polished stainless‑steel surface. Custom sizes and materials are acceptable for industrial butterfly valves.
Material:
1.4308/1.4408/1.4469/1.4470/1.4588/C276 and more
Dimension:
DN25 – DN400
Pressure:
PN3-PN25
Casting:
Investment Casting
Certificate:
PED
Approval by Lloyd's Register Classification of China
Descriptions
Parametric
Specificities
Details
Case
Butterfly Valve Disk DN25-DN400
The centerline valve disk is produced by investment casting. The material include various stainless steel, duplex steel and nickel-based alloys. Machining is completed through CNC lathe and horizontal milling machines. The coaxiality of the disk is within 0.15mm, the square tolerance is within 0.05mm.
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20
+
Year/Experiences
245
+
Employees
Product Parameters
| Manufacture Process: | Investment casting |
| Heat Treatment: | Solution annealing |
| Maximum Part Size: | 500mm |
| Minimum part size: | 25mm |
| Certificate: | PED |
| Material Standard: | EN10213/EN10088-1/ASTM A351/A351M and more |
Product Features
Customer customization
We can develop patterns and produce corresponding products according to customer requirements.
Product accuracy
Machining is carried out through CNC lathes and machining centers to ensure good product accuracy.
Casting dimensions
Investment casting ensures good dimensional accuracy and surface finish of the castings.
Stability
With a monthly production capacity of over 80,000 valve disks, we guarantee product quality and timely delivery.
Professionalism
Having been engaged in the valve field for more than 15 years, we can help customers complete the production of various products.
Certification
Approval by Lloyd's Register Classification of China, our products can be used in the marine industry.
Product Parameters
On The Basis Of Deepening Co-Operation With Existing Customers, We Continue To Develop New Customers In The Market And Provide Customers
Material Composition
- Main material: 1.4470 stainless steel
- Optional grades: CF8, CF8M, duplex steel, nickel‑based alloy for harsh corrosive medium
- Produced by investment casting process with dense internal metallographic structure
1
Dimensional Specifications
- Standard specification DN250 PN16
- Supports full range standard sizes for double‑offset butterfly valves
- CNC precision machining for sealing surface and mounting holes
- Strict tolerance control for eccentricity, roundness and flatness for tight sealing performance
3
Certifications And Approvals
- Material Test Report (MTR) available for each production batch
- Compliant with ISO investment casting & precision‑machining standards
- Accept third‑party inspection and testing per customer requirements
5
Design And Construction
- One‑piece cast **double‑eccentric (double offset)** butterfly valve disc structure
- Multi integrated mounting lugs with pre‑fabricated fixing holes
- Eccentric offset profile design reduces friction against seat during opening‑closing cycle
- Rigid monolithic casting construction to withstand high torque and pressure load
2
Surface Finishing
- Pickling & passivation treatment to enhance stainless steel corrosion resistance
- Full deburring & grinding to remove casting flash and sharp edges
- Clean surface free of sand holes, slag inclusions and casting defects
4
Customization And Modifications
- OEM & ODM one‑stop service for investment casting and CNC machining
- Custom material grade, non‑standard dimension, cast‑on marking logo
- Manufacture strictly following customer drawings and technical specification
6
Product Cases
We supply high‑quality cast valve bodies and valve discs for global valve manufacturers, supporting OEM & drawing customization.
OEM Investment Casting Butterfly Valve Disc for Industrial Valves
Double Eccentric Butterfly Valve Disc with Ad2000 for Machinery Parts
OEM Duplex Stainless Steel Investment Casting Valve Disc for Industrial Butterfly Valve
OEM Precision Aluminum Valve Body Casting with CNC Machining
Customized Precision Casting Butterfly Valve Body
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On The Basis Of Deepening Co-Operation With Existing Customers, We Continue To Develop
New Customers In The Market And Provide Customers
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Shenyang Puyue Industrial Co., Ltd. Was
Founded In 2007, Is A Collection Of Scientific