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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in providing high-quality, customized valve solutions for global industrial markets. Our core expertise lies in the design and production of DIN standard butterfly valves, particularly those engineered for insulated piping systems. We understand the critical need for reliable flow control in applications involving thermal fluids, where maintaining temperature and preventing heat loss are paramount. This OEM Factory for DIN 3202 Butterfly Valves with Extended Spindle for Insulation is a direct response to that need, offering a robust and precise solution for demanding hot water, district heating, HVAC, and industrial processes.
The extended spindle design is the defining feature of this valve, setting it apart from standard models. This configuration allows the valve's operating mechanism (lever, gearbox, or actuator) to be positioned outside the insulation layer. This offers significant advantages:
- Preserved Insulation Integrity: The insulation jacket can remain continuous and unbroken, maximizing thermal efficiency and preventing energy loss.
- Accessible Operation & Maintenance: Operators can easily access the valve for manual adjustment or maintenance without having to cut through or remove insulation materials.
- Actuator Protection: When equipped with electric or pneumatic actuators, these components are kept away from the high temperatures of the pipeline, prolonging their service life.
- Enhanced Safety: Reduces the risk of burns for personnel during operation, as the handwheel or actuator is not in direct contact with the hot insulated surface.
Product Features & Technical Specifications:
Our valves are manufactured in strict compliance with DIN 3202-F1 standards, ensuring dimensional interchangeability and reliable performance within European and international piping systems. We offer extensive customization to meet specific project requirements.
| Parameter | Specification / Options |
|---|---|
| Design Standard | DIN 3202-F1 |
| Pressure Rating (PN) | PN10, PN16 |
| Nominal Diameter (DN) | DN50 to DN600 (2" to 24") and larger sizes available upon request |
| Body Material | Ductile Iron (GGG40), Cast Iron (GG25), Carbon Steel (WCB), Stainless Steel (CF8/CF8M) |
| Disc Material | Ductile Iron, Cast Steel, Stainless Steel (coated or uncoated) |
| Seat Material | EPDM (Standard), NBR, Viton (FKM) – select based on fluid media and temperature |
| Spindle Extension Length | Customizable to match your specific insulation thickness (common extensions: 100mm, 150mm, 200mm) |
| Connection Type | Wafer or Lug design per DIN standard |
| Operation Method | Lever, Worm Gear Operator, Electric Actuator, Pneumatic Actuator (sourced from reputable brands) |
| Temperature Range | -10°C to +120°C (for EPDM seat). Higher ranges available with alternative seat materials. |
| Leakage Rate | Class A (Zero Leakage) or Class B (Low Leakage) per EN 12266-1 standard |
Advantages for Your Project:
- Energy Efficiency: Maintains the effectiveness of your insulation system, leading to reduced operational costs.
- System Longevity: Protects both the valve's operating mechanism and adjacent actuators from extreme temperatures.
- Reduced Maintenance Costs: Easy access for inspection and servicing minimizes downtime and labor.
- Flexible Integration: Compatible with a wide range of actuators, allowing for easy automation of your insulated lines.
- Global Compliance: DIN standard design facilitates use in projects worldwide, particularly in Europe and markets adopting European norms.
Trust and Capability Backing:
Shanghai Zhibang Valve operates under an ISO9001-certified quality management system, ensuring consistent product quality from raw material inspection to final testing. With an annual export value ranging between US$1 Million and US$1.5 Million, we have established a strong presence across diverse markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring reliable and efficient logistics for our global partners. As an OEM factory, we excel at providing tailored solutions. Whether you need a specific extension length, special material combination, or branded packaging, we have the flexibility to meet your exact specifications. Choose our DIN 3202 Butterfly Valves with Extended Spindle for a solution that combines technical precision with practical benefits for insulated applications.
Frequently Asked Questions (FAQ):
-
Q: What is the main purpose of the extended spindle on this butterfly valve?
A: The primary purpose is to allow the valve's operating mechanism (lever, gearbox, actuator) to be positioned outside the thermal insulation layer of the pipeline. This preserves insulation integrity, allows for safe and easy operation, and protects actuators from heat. -
Q: Can you customize the length of the extended spindle?
A: Yes, customization is a key service we offer. The extension length can be manufactured to match the specific thickness of your insulation cladding. Common sizes are available, but we can produce virtually any required length. -
Q: Are these valves suitable for steam applications?
A: While designed for hot water and thermal fluid systems, suitability for steam depends on pressure and temperature ratings. With appropriate material selections (like a metal seat or high-temperature elastomer) and a higher pressure class, they can be engineered for low-pressure steam. Please consult with our engineers for your specific steam parameters. -
Q: What types of actuators can be fitted to this valve?
A> The valve is designed to be compatible with a wide range of actuators. We can supply valves fitted with manual levers or gear operators. For automated systems, we can mount electric or pneumatic actuators from various reputable brands upon request, ensuring a complete package. -
Q: Do you provide certifications or test reports with the valves?
A> As an ISO9001-certified manufacturer, we conduct routine tests (shell test, seat test per EN 12266-1). Standard test certificates are available. Specific certifications (e.g., material reports, 3.1 inspection certificates) can be provided upon request, potentially involving additional cost and lead time. -
Q: What is your minimum order quantity (MOQ) for OEM orders?
A> MOQ varies depending on valve size, material specifications, and customization level. For standard DN series with common extensions, MOQ can be relatively low. We encourage you to send us your detailed requirements for a precise quotation and MOQ confirmation. -
Q: What are the standard packing methods for export?
A> Valves are typically packed in individual carton boxes with foam protection, then placed on export-worthy wooden pallets. For OEM clients, we can accommodate specific packaging requirements, including neutral or customer-branded boxes. -
Q: How do I select the correct seat material (EPDM, NBR, Viton)?
A> Selection depends on the fluid media and operating temperature. EPDM is standard for hot water. NBR is for oils and fuels at moderate temperatures. Viton (FKM) is for higher temperatures and more aggressive chemicals. Our technical team can assist you based on your application details.
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