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Syi Ductile Iron Double Eccentric Double Flange Butterfly Valve Price
US$100.00
1-999 Pieces
US$90.00
1,000+ Pieces
Sample price:US$100.00/piece.Request sample
Product profile
Customization
AvailableMedia
GasDriving Mode
ManualModel NO.
Butterfly ValveConnection Form
FlangeStructure
Centre SealingSeal Form
Force SealedValve Stem
NormalWork Pressure
High Pressure (10.0mpa< Pn <80.0mpa)Working Temperature
Normal Temperature (-40°C<T<120°C)Material of Seal Surface
Soft SealedValve Body
CastingApplication
Industrial Usage, Water Industrial Usage, Household UsagePower
HydraulicTemperature of Media
High TemperatureSize
DN40~DN1200Place of Origin
ChinaBrand Name
SyiSurface
Powder Coating/Acid Pickling/PaintTest
100% Water PressureTransport Package
Standard Export Package or as Per Your RequirementSpecification
DIN/BS/ANSITrademark
SYIOrigin
ChinaHS Code
8481804090Production Capacity
1000 Sets Per MonthKey features
Double Eccentric Design: Disc off-seats after few degrees opening, reducing wear and ensuring reliable sealing performance.
High Pressure Resistance: Designed for high pressure applications ranging from 10.0MPa to 80.0MPa with ductile iron body.
Wide Size Range: Available in sizes from DN40 to DN1200, with extension stems available for larger diameters.
Corrosion Protection: Features electrostatic epoxy resin powder coating or vitreous enamel for excellent corrosion resistance.
Multiple Actuation Options: Can be operated manually, or actuated by electric, pneumatic, or hydraulic actuators upon request.
Certified Quality: ISO9001:2015, TUV, BSI, SGS, BV, FM certified and UL, WRAS listed for health nature compliance.
Versatile Application: Suitable for potable water, gas supply, power plants, chemical industry, and HVAC systems.
Customization Available: Offers customized power, temperature, size, origin, brand, surface treatment, and testing options.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-03-19 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤5.83h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummarySYI Group, also identified as SYI Industrial Co., Ltd., is a China-based limited company established in 1999 and operating from Shanxi. Its reported product scope includes castings, forgings, ductile iron pipes and fittings, manhole covers, valves, flanges, aluminum castings, and municipal products. The supplier reports ISO 9001:2015 certification and additional TUV, BSI Kitemark, SGS, BV, FM, and WRAS credentials or listings. Manufacturing evidence includes six production lines, automatic moulding equipment, CNC machining, laboratory facilities, in-house tooling, and 21–30 quality-control staff. It exports to multiple global regions and states that exports represent 90% of sales. Evidence supports production capability and certification strength, while after-sales service, financial credibility, innovation outcomes, customization performance, and customer cases cannot be conclusively assessed from the provided information.
Supplier typeThe supplier is described as a combined business entity and limited company, operating in industrial equipment, components, tools, hardware, metallurgy, machinery, construction, and related sectors. Its stated product range is centered on castings, ductile iron products, manhole and municipal products, valves, flanges, and aluminum parts.
CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it is TUV, BSI Kitemarked, SGS, BV, FM certified, and WRAS listed. These statements provide direct evidence of multiple quality, product, or compliance credentials, although the specific scope and validity of each additional credential are not detailed.
Production capacityProduction capability is supported by a reported 67,275.83 m² manufacturing plant, six production lines, automatic moulding equipment, CNC machining centers, laboratory facilities, in-house tooling, and 21–30 quality-control staff. The supplier also reports one-month fulfillment timing in both peak and off-peak seasons and serves multiple export regions.
Customization capabilityThe supplier lists OEM industrial castings and maintains in-house pattern and tooling shops, which directly supports the ability to develop or manufacture customer-specific cast components. Nevertheless, no examples, minimum requirements, engineering workflow, or documented customization projects are provided.
Product Q&A
Q:What are the available actuation methods?
A:
The valve can be operated by a handle wheel, or actuated by electric, pneumatic, or hydraulic actuators upon request.
Q:What is the pressure rating of this valve?
A:
It is designed for high pressure applications, specifically in the range of 10.0MPa < Pn < 80.0MPa.
Q:What materials are used for the body and seal?
A:
The body is made of Cast Iron (CI) or Ductile Iron (DI), and the seal surface uses NBR/EPDM rubber.
Q:What certifications does the product have?
A:
The product is ISO9001:2015, TUV, BSI Kitemarked, SGS, BV, FM certified, and UL, WRAS listed.
Q:Can the valve be customized?
A:
Yes, customization is available for power, media temperature, size, place of origin, brand, surface treatment, and testing.
Send Inquiry
*To:
SYI Industrial Co., Ltd.
SYI Industrial Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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