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Help CenterGB/T3036 Stainless Steel Disc Butterfly Valve for Seawater Cooling Systems DN80-DN500
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As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our GB/T3036 Stainless Steel Disc Butterfly Valve, engineered specifically for the demanding environments of seawater cooling systems. With over seven years of industry experience since our establishment in 2016, we understand the critical need for reliable, corrosion-resistant flow control in marine and coastal applications. Our valve is designed to deliver long-lasting performance, minimize maintenance costs, and ensure system integrity against the harsh effects of seawater.
This valve represents a culmination of precision manufacturing and material science, tailored to meet the rigorous standards required for industrial cooling circuits. We combine robust construction with functional design to provide a solution that is both efficient and durable.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: Constructed from high-grade stainless steel, the valve body and disc offer exceptional resistance to chloride-induced stress corrosion cracking and pitting, which are common challenges in seawater applications.
- Optimized Disc Design: The disc geometry is engineered for smooth, low-torque operation and minimal pressure drop across the valve, enhancing the energy efficiency of your cooling system.
- Reliable Sealing Performance: Equipped with a resilient seat (options like EPDM, Viton, or PTFE are available), the valve ensures a bubble-tight shut-off, preventing seawater leakage and protecting downstream equipment.
- Robust Construction: Designed and manufactured in compliance with the GB/T3036 standard, the valve guarantees structural integrity and reliable operation under specified pressure ratings.
- Versatile Actuation Options: The valve can be fitted with manual levers, gear operators, or electric/pneumatic actuators, allowing for seamless integration into both manual and automated control systems.
- Easy Installation & Maintenance: The compact wafer or lug design simplifies installation between flanges, reducing piping space and labor time. The simple design also allows for easy inspection and seat replacement if necessary.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Standard | GB/T3036 |
| Valve Type | Disc Butterfly Valve |
| Body & Disc Material | Stainless Steel (Grade customizable) |
| Size Range (Nominal Diameter) | DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 |
| Connection Type | Wafer or Lug (as per order) |
| Pressure Rating | PN10, PN16 (or equivalent Class 150) |
| Seat Material Options | EPDM (Standard for seawater), Viton, PTFE |
| Stem Material | Stainless Steel |
| Operation | Manual Lever, Gear Operator, Electric/Pneumatic Actuator (optional) |
| Application Temperature | Dependent on seat material (e.g., EPDM: -20°C to 120°C) |
| Application Medium | Seawater, Cooling Water, Brine, Other Corrosive Fluids |
Benefits for Your Operations:
- Extended Service Life: The corrosion-resistant materials significantly reduce failure rates, leading to fewer replacements and lower total cost of ownership.
- Enhanced System Reliability: Bubble-tight sealing prevents costly leaks and contamination of the cooling circuit, ensuring consistent thermal performance.
- Operational Flexibility: Available in a wide DN80-DN500 size range and with multiple actuation choices, the valve can be customized to fit diverse system layouts and control requirements.
- Reduced Maintenance Downtime: The durable design and accessible components simplify routine checks and any necessary repairs, minimizing system offline periods.
Trust in a supplier with a proven track record. Shanghai Zhibang Valve exports to major markets across North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value between US$1-1.5 Million. Our products are shipped from key ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Backed by our ISO9001-certified quality management system, every GB/T3036 Stainless Steel Butterfly Valve is subjected to stringent testing to guarantee it meets your performance expectations. Choose a valve built for resilience in the toughest conditions—contact us today for a quotation or to discuss your specific project requirements.
Frequently Asked Questions (FAQ):
Q1: Is this butterfly valve suitable for full seawater immersion or just seawater-carrying pipelines?
A1: While constructed from corrosion-resistant stainless steel, this valve is primarily designed for seawater flow within piping systems. For full, continuous immersion applications, specific material grade selection and additional protective measures should be discussed based on the exact environment.
Q2: What is the main difference between wafer and lug connection types for this valve?
A2: A wafer-style valve is sandwiched between two pipeline flanges using through-bolts. A lug-style valve has threaded inserts (lugs) on the valve body, allowing it to be bolted directly to each flange, which can be advantageous for end-of-line applications or where one side needs to be disconnected.
Q3: Can this valve be automated, and what information do you need to provide an actuator?
A3: Yes, the valve is designed for easy integration with electric or pneumatic actuators. To specify an actuator, we typically require details such as the desired power source (voltage, air pressure), control signal (on/off, modulating), fail-safe position, and the required operating torque for your specific valve size.
Q4: How does the GB/T3036 standard compare to international standards like API 609 or ISO 5752?
A4: GB/T3036 is the Chinese national standard for metallic butterfly valves, covering design, dimensions, materials, and testing. It is broadly comparable to international standards in terms of performance requirements for general industrial use. For projects requiring specific international standards, please inquire as customization may be possible.
Q5: What is the typical lead time for an order of DN300 valves?
A5: Lead times vary based on order quantity, specific configuration (actuation, seat material), and current production schedule. Generally, for standard configurations, we can provide a reliable delivery estimate upon receipt of your formal inquiry or purchase order.
Q6: Do you offer any warranty or after-sales support for your valves?
A6: As a manufacturer, we stand behind the quality of our products. We offer a standard warranty against material and manufacturing defects. Our technical team is also available to provide support regarding installation, operation, and troubleshooting.
Q7: Are the valves tested before shipment?
A7: Yes, as part of our ISO9001 quality procedures, each valve undergoes pressure testing (shell and seat tests) to ensure it meets the specified pressure rating and provides leak-tight closure before leaving our factory.
Q8: Can you provide valves in sizes outside the DN80-DN500 range?
A8: Our standard production range covers DN80 to DN500. For sizes smaller than DN80 or larger than DN500, please contact our sales team to discuss the feasibility and potential for custom manufacturing.
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