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Syi Ductile Iron Pneumatic Single Double Triple Eccentric Type Flange Butterfly Valve
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.
Double Eccentric 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
Multi-Eccentric Design: Concentric, Single, Double, and Triple eccentric options for optimal sealing and low torque.
High Pressure Resistance: Designed for high pressure applications ranging from 10.0MPa to 80.0MPa.
Wide Size Range: Available in sizes from DN40 to DN1200, with extension stems for larger diameters.
Corrosion Protection: Electrostatic epoxy resin powder coating or vitreous enamel for excellent corrosion resistance.
Certified Quality: ISO9001:2015, TUV, BSI, SGS, BV, FM certified and UL, WRAS listed.
Versatile Actuation: Can be operated by handwheel, electric actuator, or pneumatic actuator.
Durable Materials: Body and disc made of ductile iron; seal surface uses soft NBR/EPDM rubber.
Global Service: Serving 111 countries with over 20 years of cooperation and professional support.
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: ≤6.48h 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 eccentric types for this butterfly valve?
A:
We offer Concentric, Single Eccentric, Double Eccentric, and Triple Eccentric types to suit different application needs.
Q:What is the pressure rating of this valve?
A:
The valve is designed for high pressure applications, with a working pressure range of 10.0MPa < Pn < 80.0MPa.
Q:What materials are used for the valve body and seal?
A:
The valve body and disc are made of ductile iron (DI) or cast iron (CI), with NBR or EPDM rubber seals.
Q:What certifications does the product have?
A:
The product is ISO9001:2015, TUV, BSI Kitemarked, SGS, BV, and FM certified, and is UL and WRAS listed.
Q:What are the payment terms?
A:
We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.
Send Inquiry
*To:
SYI Industrial Co., Ltd.
SYI Industrial Co., Ltd.*Content:
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