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OEM Steel Precision Casting Stop Check Valve Part Butterfly Valve Disc
US$0.69-3.49
100 Pieces
Sample price:US$0.79/piece.Request sample
Product profile
Customization
AvailableMedia
OilDriving Mode
ElectricModel NO.
SA-DBConnection Form
FlangeStructure
Double-Eccentric SealingSeal Form
Auto SealedValve Stem
ExtendedWork Pressure
Low Pressure (Pn<1.6mpa)Working Temperature
Medium Temperature (120°C<T<450°C)Material of Seal Surface
Soft SealedValve Body
CastingStandard
Contact UsApplication
Industrial Usage, Water Industrial Usage, Household UsageItem
Valve DiscCasting Method
Special CastingSurface Roughness
Ra0.4Raw Material
Carbon Steel, Stainless SteelTolerance
+-0.2 or as DrawingsTechnology
Precision Casting + MachiningService
Shengao, OEMColor
Nature or as RequestExport Markets
GlobalOEM and ODM
100% with DrawingsInspection
Slide Caliper, Microcaliper, ProjectorName
Butterfly ValveLogo Printing
CustomizedMOQ
10-1000PCSFree Sample
YesTransport Package
Iron Box, Plywood BoxSpecification
ASTM, GB, DIN, EN124, CETrademark
ShengaoOrigin
Weifang City. Shandong Province. ChinaHS Code
87089910Production Capacity
500ton/MonthKey features
OEM & Customization: Full customization from drawings or samples with logo printing and color options.
Precision Casting Process: Advanced lost-wax investment casting with high dimensional accuracy and surface finish.
Wide Material Selection: Available in Carbon Steel, Stainless Steel, Alloy Steel, and various other alloys.
High Production Capacity: Annual supply capacity of 20,000 tons with 500 metric tons monthly output.
Advanced Machining: Equipped with 30+ CNC centers and independent machining facility for precision.
Quality Certification: ISO9001 quality control with third-party inspection and NDT capabilities.
Global Export Experience: Exporting globally with strong market share in Europe, US, and Asia.
Flexible MOQ: Low MOQ starting from 1-5 pcs for prototypes up to 1000 pcs for production.
Company profile
Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.38h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.
Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.
After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.
Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.
Product Q&A
Q:What is an Investment Casting Butterfly Valve Disc?
A:
It is the core rotating component inside a butterfly valve, also called the valve plate or vane. Shaped like a disc, it rotates on a shaft to control or shut off fluid flow. Manufactured via investment casting (lost-wax casting), this process allows for complex geometries, excellent surface finish, and high dimensional accuracy in a wide range of metal alloys.
Q:What are the advantages of investment casting for valve discs?
A:
Design Flexibility: Produces complex, near-net-shape parts with integrated features. Superior Surface Finish: As-cast surface finish is excellent, reducing post-machining. Material Versatility: Can cast a vast range of alloys. Dimensional Accuracy & Consistency: High precision for tight tolerances on critical sealing surfaces.
Q:What types of butterfly valve discs do you produce?
A:
We cast discs for all major valve designs: Concentric Discs, Double/Triple Offset Discs, Lug & Wafer Style Discs, V-Port/Characterized Discs, and Custom/Proprietary Designs for OEMs.
Q:What materials are commonly used?
A:
Common materials include Stainless Steel (CF8, CF8M), Duplex & Super Duplex Stainless Steel, Alloy 20, Monel, Hastelloy, Carbon Steel (WCB, LCB), Bronze, and Aluminum Bronze.
Q:What post-casting processes are included?
A:
We provide Heat Treatment, Precision CNC Machining for sealing surfaces and shaft bores, Non-Destructive Testing (PT/RT), and Final Cleaning & Passivation.
Send Inquiry
*To:
Weifang Shengao Machinery Co., Ltd.
Weifang Shengao Machinery Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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