What is the weight range of the valve bonnet?

The weight typically ranges from 3Kg to 20Kg, depending on the specific design and material requirements.

What standards do your products comply with?

Our products comply with international standards including EN, ANSI, BS, DIN, and JIS.

What is the casting tolerance for your parts?

We adhere to ISO8062 and ISO2768 standards for casting tolerance to ensure high dimensional accuracy.

Customization Ductile Iron Butterfly Valve Part Bonnet by Shell Mould Casting

Name: Customization Ductile Iron Butterfly Valve Part Bonnet by Shell Mould Casting
Brand: SYI Industrial Co., Ltd.
SKU: 1981585772

Shanxi, ChinaSYI Industrial Co., Ltd.

US$7.70

500-999 Pieces

US$7.50

1,000-1,999 Pieces

US$7.30

2,000+ Pieces

Product profile

Customization

Available

Type

Valve Bonnet

Application

Butterfly Valve

Model NO.

Valve Bonnet

Machining

Casting

Material

Ductile Iron , Grey Iron , Alloy Steel , Carbon St

Standard

En, ANSI, BS, DIN, JIS

Product

Valve Bonnet

Process

Green Sand Production Line Process

Transport Package

Plywood or Wooden Case, Pallet (as Per Customer's

Specification

Customized

Trademark

SYI or OEM

Origin

Shanxi, China

Production Capacity

300 Ton/Tons Per Month

Key features

OEM/ODM Acceptable: We accept OEM and ODM requests, providing customized valve bonnet solutions based on customer drawings or ideas.

High Precision Casting: Manufactured via shell moulding and green sand process with ISO8062/ISO2768 tolerance for high dimensional accuracy.

Ductile Iron Material: Made from high-quality ductile iron (En-Gjs-450-10), grey iron, alloy steel, or carbon steel as per requirements.

Comprehensive Inspection: Rigorous quality control using spectral analysis, tensile testing, hardness testing, and CMM for every batch.

Experienced Manufacturer: Established in 1988 with rich OEM casting experience, ensuring stable cooperation and reliable product quality.

Fast Lead Time: Average lead time is one month for both peak and off-season periods, ensuring timely delivery.

Wide Application: Specifically designed for butterfly valves and gate valves, suitable for various industrial applications.

Custom Weight Range: Available in weights ranging from 3Kg to 20Kg, tailored to specific project requirements.

Company profile

SYI Industrial Co., Ltd.

Shanxi, China

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: ≤6.13h 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.