Contact Platform Support
Help CenterCast Iron Gearbox Operated Butterfly Valve for Large Bore Applications, Conforms to GB/T3036
Product Spotlights
Related Products
-
Gear Operated Butterfly Valve for Marine Seawater Pipelines, DNV Approved, Meets GB/T3036NegotiableMOQ: 1 Unit -
GB/T3036 Standard Wafer Butterfly Valve With Gear Operator for Water Treatment Plant ControlNegotiableMOQ: 1 Unit
-
DN300-DN600 Gear Operated Butterfly Valve Compliant With GB/T3036 Standard, PN0.6-1.6MPaNegotiableMOQ: 1 Unit
-
DN400 Gear Driven Butterfly Valve With EPDM Liner, GB/T3036 Compliant for Chemical ProcessingNegotiableMOQ: 1 Unit
-
Standard Compliant Butterfly Valve, GB/T3036, With Available Technical Drawings and SupportNegotiableMOQ: 1 Unit
As a leading manufacturer with ISO9001-certified production processes, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable flow control solutions for demanding industrial applications. Our Cast Iron Gearbox Operated Butterfly Valve is engineered specifically for large bore piping systems, where dependable performance and ease of operation are critical. Built to conform to the GB/T3036 standard, this valve combines the strength of cast iron construction with the precise control of a gearbox operator, ensuring long service life and efficient flow regulation in water supply, wastewater treatment, power generation, and other heavy-duty sectors.
The core value of this valve lies in its ability to handle high-volume flow with minimal pressure drop, while the gearbox operation provides significant mechanical advantage, making it possible to actuate large-diameter valves with relative ease, even in high-pressure scenarios. This design is ideal for applications where frequent operation or remote control is required, offering a superior alternative to manual lever-operated valves for sizes above DN200.
Key Features & Technical Advantages:
- Robust Cast Iron Body: Provides excellent strength and corrosion resistance, suitable for a wide range of media including water, air, and mild corrosive fluids.
- Gearbox Operator: Delivers high torque output with low input effort, enabling smooth and precise 90-degree rotation of the disc. The gearbox can be sealed to protect internal components from harsh environments.
- Large Bore Design: Optimized for pipelines from DN200 (8") and upwards, minimizing flow resistance and maximizing efficiency in bulk fluid transfer systems.
- Bubble-Tight Shut-off (Optional): With the appropriate resilient seat material (like EPDM or NBR), the valve can achieve excellent sealing performance, reducing leakage to minimal levels.
- Versatile Configuration: Available in wafer, lug, or double flanged end connections to suit various installation requirements. Seat and disc materials can be customized based on the specific media and operating conditions.
- Compliance & Reliability: Manufactured in accordance with GB/T3036, ensuring dimensional accuracy, material integrity, and performance consistency.
Detailed Technical Specifications:
| Parameter | Specification |
| Body Material | Cast Iron (GG25) |
| Disc Material | Cast Iron / Ductile Iron / Epoxy Coated (Optional) |
| Seat Material | EPDM, NBR, Viton (Optional) |
| Operation | Gearbox (Worm Gear) |
| Pressure Rating | PN10, PN16 (Customizable up to PN25) |
| Temperature Range | -10°C to 120°C (EPDM), varies with seat material |
| Size Range | DN200 (8") to DN1200 (48") and larger |
| End Connection | Wafer, Lug, Double Flange |
| Design Standard | GB/T3036 |
Benefits for Your Operation:
- Reduced Operational Effort: The gearbox mechanism drastically lowers the force required to open/close the valve, enhancing operator safety and allowing for potential integration with actuators.
- Enhanced Durability: The cast iron construction and robust gearbox are designed for long-term, maintenance-free operation in tough industrial environments.
- Improved Flow Efficiency: The large bore and streamlined disc design ensure minimal flow obstruction, reducing energy consumption in pumping systems.
- Flexible Installation: Multiple end connection options provide compatibility with existing flange standards and piping layouts.
- Cost-Effective Solution: Offers a reliable and economical choice for large-diameter isolation and regulation compared to more complex valve types like gate or globe valves.
Backed by our ISO9001 quality management system and nearly a decade of manufacturing expertise since 2016, Shanghai Zhibang Valve guarantees product consistency and performance. Our valves are trusted by clients across North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value reflecting our global reach and reliability. We support flexible shipment from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing to ensure timely delivery. For your next large-scale project requiring dependable flow control, our Cast Iron Gearbox Operated Butterfly Valve provides a robust, compliant, and operationally superior solution. Contact us today to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a gearbox operator over a simple lever on a large butterfly valve?
A: A gearbox provides a significant mechanical advantage (gear reduction), allowing an operator to generate high torque with relatively low input force. This makes opening and closing large-diameter valves much easier, safer, and more precise, especially under higher pressure differentials. It also facilitates the attachment of electric or pneumatic actuators for automated control.
Q2: Is this valve suitable for potable water applications?
A: Yes, when configured with appropriate seat materials like EPDM that comply with drinking water standards (such as WRAS, KTW, or FDA), this cast iron valve can be used in potable water systems. It is crucial to specify your certification requirements when ordering.
Q3: Can this valve be used for throttling or flow control, or is it only for on/off service?
A: While butterfly valves are excellent for on/off isolation, the gearbox operator allows for more precise positioning of the disc. This makes it suitable for throttling applications where flow rate needs to be modulated, though for fine control over a wide range, a different valve type might be recommended.
Q4: What does "conforms to GB/T3036" mean for an international buyer?
A: GB/T3036 is a Chinese national standard for metal butterfly valves. Conformance ensures the valve meets specific requirements for design, dimensions, materials, pressure-temperature ratings, and testing. It is a mark of manufacturing quality and consistency. Many dimensions align with international standards like ISO, ensuring compatibility in global projects.
Q5: What maintenance does the gearbox require?
A: The gearbox is typically lubricated for life and requires minimal maintenance. However, in very dusty or corrosive environments, periodic inspection and re-lubrication may be advised. The gearbox housing is often sealed to protect the internal gears.
Q6: Are electric or pneumatic actuators available for this valve?
A: Yes. The gearbox operator is designed with a standard input shaft that can readily interface with a wide range of electric or pneumatic actuators. This allows for easy automation integration for remote or process-controlled systems.
Q7: What is the maximum pressure and temperature this valve can handle?
A: The standard pressure ratings are PN10 and PN16 (10 bar and 16 bar). Higher ratings like PN25 are available upon request. The temperature range is primarily determined by the seat material; for example, EPDM seats typically handle -10°C to 120°C, while Viton can withstand higher temperatures.
Q8: Do you provide customization for special bore sizes or materials?
A: Absolutely. As a manufacturer, we offer customization services. We can produce valves in non-standard sizes, with special coatings (epoxy, nylon), or using alternative body/disc materials like ductile iron or stainless steel to meet specific project requirements.
Send Inquiry to This Supplier
You May Also Like
-
High-Performance Ductile Iron Butterfly Valve, GB/T3036, Electric Actuator Controlled, 24V DCNegotiableMOQ: 1 Unit
-
Ductile Iron Butterfly Valve With Stainless Steel Stem, GB/T3036 Compliant, Fire-Safe DesignNegotiableMOQ: 1 Unit
-
GB/T3036 Standard Lug Type Butterfly Valve, NBR Seal for Water Applications, DN80-DN400NegotiableMOQ: 1 Unit
-
GB/T3036 Standard Ductile Iron Butterfly Valve, PN10/16 Pressure Rating, DN50-DN600NegotiableMOQ: 1 Unit
-
GB/T3036 Ductile Iron Butterfly Valve With 2-Year Warranty and Mill Test ReportNegotiableMOQ: 1 Unit
-
GB/T3036 Butterfly Valve With PTFE Seat for Corrosive Media, Full Lug DesignNegotiableMOQ: 1 Unit
-
Ductile Iron Wafer Butterfly Valve Compliant With GB/T3036, EPDM Seat, Lever or Gear OperationNegotiableMOQ: 1 Unit
-
GB/T3036 Ductile Iron Butterfly Valve for HVAC and Building Service Piping SystemsNegotiableMOQ: 1 Unit
-
Industrial Water Treatment Plant Butterfly Valve, GB/T3036 Standard, Wafer TypeNegotiableMOQ: 1 Unit
-
GB/T3036 Pneumatic Butterfly Valve With Stainless Steel Disc, DN50-DN600, PN16 RatedNegotiableMOQ: 1 Unit
