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Help CenterDN15-DN100 DIN 3357 Forged Steel Ball Valve, PN40-PN100 Rating, Threaded or Flanged Ends
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As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing robust industrial valves for global markets. Our DN15-DN100 DIN 3357 forged steel ball valves represent a core product line, engineered to deliver reliable shut-off and control in demanding high-pressure applications. Combining superior forged steel construction with precise machining according to the DIN 3357 standard, these valves offer exceptional durability, leak-tight performance, and long service life, making them a trusted choice for engineers and procurement specialists worldwide.
The primary value of this valve series lies in its adaptability and strength. Designed for pressures from PN40 to PN100 (equivalent to ASME Class 300 to 600), they are suitable for a wide spectrum of industrial systems. Whether your project requires threaded connections for simpler piping or flanged ends for secure, bolted joints, this range provides the necessary configuration. The forged steel body ensures integrity under high stress and thermal cycling, a critical advantage over cast alternatives.
- Forged Steel Construction: The valve body and key components are forged from high-grade steel (such as A105 or F22), resulting in a homogeneous structure with no internal voids, superior mechanical strength, and enhanced resistance to pressure, impact, and temperature fluctuations.
- DIN 3357 Compliance: Manufactured in accordance with the DIN 3357 standard for industrial valves, ensuring dimensional accuracy, performance criteria, and interchangeability within European and international piping systems.
- Pressure Rating Flexibility: Available in multiple pressure classes (PN40, PN63, PN100) to match specific system requirements, providing a safe and economical solution for both moderate and severe service conditions.
- Connection Versatility: Offered with either threaded (NPT or BSP threads) or flanged ends (according to DIN, ANSI, or other flange standards upon request), allowing for seamless integration into diverse pipeline designs.
- Optimized Ball and Seat Design: The precision-machined ball and selected seat materials (like PTFE or reinforced polymers) ensure smooth operation, low torque, and excellent sealing performance, minimizing leakage and maintenance needs.
- Broad Size Range: Covers nominal diameters from DN15 (1/2 inch) to DN100 (4 inches), accommodating most common pipeline sizes in process industries.
Below is a summary of key specifications for this forged steel ball valve series:
| Parameter | Details / Range |
| Body Material | Forged Steel (A105, F22, F304, F316 customizable) |
| Size (Nominal Diameter) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 |
| Pressure Rating (PN) | PN40, PN63, PN100 |
| End Connection Types | Threaded (NPT/BSP), Flanged (RF, FF) |
| Seat Material Options | Standard PTFE, Reinforced PTFE, Metal Seat (for high temp) |
| Operating Temperature | Standard: -20°C to 250°C; Extended ranges available |
| Operation Mode | Manual Handwheel or Lever; Pneumatic/ Electric Actuator optional |
| Fire Safe Design | Optional, according to API 607/6FA standards |
Choosing our forged steel ball valve brings concrete benefits to your operation:
- Enhanced System Safety: The high-pressure rating and robust construction reduce the risk of valve failure, protecting personnel and equipment.
- Reduced Maintenance Costs: The durable materials and reliable sealing extend service intervals, lowering long-term operational expenses.
- Installation Flexibility: The choice between threaded and flanged ends simplifies adaptation to existing or new piping, saving time and installation resources.
- Global Compliance: Adherence to DIN 3357 facilitates use in projects requiring European standards, while the design is compatible with other international norms.
- Process Efficiency: Quick, quarter-turn operation allows for fast flow control or isolation, improving overall process responsiveness.
Shanghai Zhibang Valve, established in 2016, has rapidly grown into a reliable supplier with an annual export value reaching US$1 Million to US$1.5 Million. Our products are shipped from major ports like Shanghai, Guangzhou, Hongkong, and Beijing, ensuring efficient logistics to key markets including North America, South America, Europe, Asia, Africa, and Oceania. Our ISO9001 certification underpins a consistent commitment to quality control from raw material selection to final testing. This forged steel ball valve series embodies our manufacturing expertise, offering a cost-effective, high-performance solution for critical fluid handling. For detailed quotations, custom specifications (such as special materials or certifications), or technical support, please contact us. We are ready to provide valves that meet your precise requirements and contribute to the success of your projects.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a forged steel body compared to cast steel?
Forged steel undergoes a process that aligns the grain structure, eliminating porosity and creating a more uniform, dense material. This results in higher tensile strength, better impact resistance, and superior performance under high pressure and thermal stress, making it more suitable for severe service conditions than cast steel.
Q2: Can this valve be used with both water and aggressive chemicals?
Yes, the standard forged steel body and PTFE seats are resistant to many fluids. However, for highly corrosive chemicals, we recommend specifying valves with appropriate stainless steel materials (like F316) and compatible seat polymers. Material selection should be based on the specific fluid composition and temperature.
Q3: What does the PN40-PN100 pressure rating mean in practical terms?
PN (Pressure Nominal) is a metric rating. PN40 corresponds to a maximum allowable pressure of approximately 40 bar at ambient temperature. PN100 corresponds to about 100 bar. These ratings ensure the valve can safely operate within these pressure limits. They are broadly equivalent to ASME Class 300 and Class 600, respectively.
Q4: Are the flanged ends compatible with ANSI/ASME flange standards?
Our flanged valves are typically manufactured according to DIN flange dimensions. However, we can produce valves with ANSI/ASME B16.5 flanges upon request. It is important to specify the required flange standard (e.g., DIN EN 1092-1, ANSI B16.5), facing type (RF, FF), and pressure class when ordering.
Q5: Is this valve suitable for high-temperature applications above 250°C?
The standard temperature range is -20°C to 250°C with PTFE seats. For higher temperatures (e.g., up to 450°C), a metal-seated version or valves with special high-temperature seat materials can be provided. Please consult us for your specific temperature requirements.
Q6: Do you offer actuated versions (pneumatic/electric) of these ball valves?
Yes. The manual valves can be equipped with pneumatic (air) or electric actuators for remote or automated control. We can supply integrated actuator packages or provide the valves ready for actuator mounting. Actuator specifications (torque, speed, control signal) need to be defined based on valve size and operating conditions.
Q7: What is the typical delivery time for these valves?
For standard sizes and configurations in our inventory, delivery can be relatively quick. For custom orders (special materials, actuation, certifications), the lead time will be longer. Our shipping from major Chinese ports allows for efficient global distribution. Specific delivery schedules can be confirmed upon order inquiry.
Q8: Does the valve come with any warranty or after-sales support?
As an ISO9001 certified manufacturer, we provide a standard warranty against manufacturing defects. We also offer technical support for installation, operation, and maintenance. Detailed warranty terms and support services are provided with the commercial documentation.
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