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Home > Industrial Equipment & Components > Valve > Butterfly Valve > GB/T3036 Ductile Iron Butterfly Valve With 2-Year Warranty and Mill Test Report

GB/T3036 Ductile Iron Butterfly Valve With 2-Year Warranty and Mill Test Report

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Product Spotlights

GB/T3036 compliant ductile iron butterfly valve offering enhanced durability. Features manual gear operation, flanged connection, and options for EPDM/NBR seats. Backed by a 2-year warranty and Mill Test Report for quality assurance. Suitable for water, HVAC, and industrial applications.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

GB/T3036

Application:

Other, Water Treatment

Material:

Ductile Iron Body and Disc

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Standard GB/T3036

Application Other, Water Treatment

Material Ductile Iron Body and Disc

Size Range DN50 to DN600

Connection Type Flanged

Seat Material EPDM or NBR (Optional)

Actuation Manual Gear Operated

Pressure Rating PN10 or PN16

Temperature Range -10°C to 120°C

Warranty 2 Years

As a dedicated manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves for global markets. Our GB/T3036 Ductile Iron Butterfly Valve is engineered for reliability and durability in demanding fluid control applications. With an annual export value reflecting our international reach, we combine rigorous manufacturing standards with practical design to deliver valves that offer long service life, ease of operation, and dependable sealing performance, making them a cost-effective solution for your pipeline systems.

This butterfly valve is designed to provide efficient flow control in a wide range of industrial settings. Its key features and benefits include:

Robust Construction: The valve body and disc are made from ductile iron, offering superior strength and impact resistance compared to standard cast iron, ensuring longevity under variable pressure conditions.
Precision Sealing: Utilizes an elastomeric seat (typically EPDM or NBR) that provides excellent sealing capabilities, minimizing leakage and suitable for water and other neutral media.
Easy Operation: Features a manual gear operator for smooth 90-degree rotation from fully open to fully closed, requiring less torque and allowing for precise flow adjustment.
Standard Compliance: Manufactured according to the GB/T3036 Chinese national standard, ensuring dimensional accuracy, performance consistency, and compatibility with common flange connections.
Versatile Application: Ideal for use in water supply and distribution networks, HVAC systems, industrial process water, and general pipeline services where on/off or throttling control is needed.
Quality Assurance: Each valve is backed by a comprehensive 2-Year Warranty and comes with a Mill Test Report, providing documented verification of material properties and manufacturing quality.

The technical specifications of our standard GB/T3036 Ductile Iron Butterfly Valve are detailed below. Custom configurations regarding seat material, pressure rating, or specific sizes are available upon request.

Parameter	Specification / Option
Body & Disc Material	Ductile Iron
Seat Material	EPDM (Standard), NBR (Optional)
Nominal Size Range (DN)	50, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600
Connection Type	Flanged (GB Standard)
Pressure Rating (PN)	10 or 16
Operating Temperature	-10°C to 120°C (with EPDM seat)
Actuation Type	Manual Gear Operator
Standard	GB/T3036
Surface Treatment	Epoxy Coating (Standard)

Choosing our valve brings specific advantages to your project:

Reduced Maintenance Costs: The durable ductile iron construction and reliable seal design lower the frequency of repairs and replacements.
Simplified Installation: Standard flanged design allows for straightforward integration into existing pipeline systems.
Operational Safety: The gear operator provides a secure and controlled method of valve actuation, reducing the risk of sudden pressure changes.
Documented Quality: The accompanying Mill Test Report offers transparency and confidence in the material integrity and manufacturing process.
Long-Term Value: Supported by a 2-year warranty, this valve represents a protected investment for your fluid control infrastructure.

Our commitment to quality is underpinned by our ISO9001 certification, ensuring a systematic approach to manufacturing control. With exports reaching major markets across North America, South America, Europe, Asia, Africa, and Oceania, and shipment flexibility from ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we have proven our capability to meet diverse international requirements. This valve embodies our experience in serving a global clientele with reliable, standardized products backed by tangible quality assurances. We encourage you to contact us for detailed quotations, technical support, or to discuss custom requirements for your specific application.

Frequently Asked Questions (FAQ)

What is the main advantage of ductile iron over cast iron in a butterfly valve?
Ductile iron has higher tensile strength and better impact resistance. It offers greater durability, especially in applications with potential pressure surges or mechanical stress, leading to a longer service life.
What does the GB/T3036 standard specify?
GB/T3036 is a Chinese national standard for butterfly valves. It defines requirements for dimensions, materials, performance (like pressure tests), and marking, ensuring product uniformity and compatibility with corresponding flanges.
Can this valve be used for throttling control?
Yes, the manual gear operator allows for precise intermediate positioning of the disc, making it suitable for flow modulation or throttling in addition to simple on/off service.
What media is the standard EPDM seat suitable for?
EPDM (Ethylene Propylene Diene Monomer) is suitable for water, air, mild chemicals, and other neutral fluids at temperatures within its specified range. For oils or specific chemicals, an NBR seat may be recommended.
What is included in the Mill Test Report?
The Mill Test Report (MTR) is a certificate from the material supplier. It typically includes chemical composition analysis, mechanical property tests (like tensile strength), and confirms that the ductile iron meets the required grade standards.
Does the 2-year warranty cover all components?
The warranty covers defects in materials and workmanship under normal use conditions for the main valve components (body, disc, seat, operator). Specific terms can be provided upon request.
Are other actuation methods available, like electric or pneumatic?
While the standard model is manual gear operated, options for electric actuators or pneumatic actuators can often be arranged as a customized assembly. Please inquire for specific requirements.
What is the typical delivery time for standard sizes?
For standard sizes and specifications, delivery time can vary based on order quantity and current stock. We provide estimated timelines upon order confirmation and leverage multiple shipment ports for efficient logistics.