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Help CenterHigh Temperature High Pressure Flange Plunger Valve for Boiler Feed Water in Power Plants
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and headquartered in Shanghai, China, specializes in the production of high-quality industrial valves. With an annual export value of US$1 million to US$1.5 million and ISO9001 certification, we are committed to delivering reliable solutions for demanding applications. Our High Temperature High Pressure Flange Plunger Valve for Boiler Feed Water in Power Plants is engineered to withstand extreme conditions, ensuring leak-free performance and long service life in critical power generation systems.
This plunger valve is designed to handle high-pressure and high-temperature boiler feed water, providing precise flow control and superior sealing. Constructed from premium stainless steel or alloy steel, it offers excellent corrosion resistance and mechanical strength. The flanged connection ensures easy installation and maintenance, while the plunger design minimizes wear and reduces the risk of internal leakage. Below, we detail the key features, technical specifications, and benefits that make this valve an ideal choice for power plants worldwide.
Key Features & Technical Specifications
- High Temperature & High Pressure Capability: Operates reliably at temperatures up to 600°C and pressures up to Class 2500, suitable for boiler feed water systems.
- Plunger Sealing Design: The plunger creates a tight seal against the seat, reducing leakage and ensuring long-term stability even under cyclic thermal stress.
- Flanged Connection: Standard RF or RTJ flanges allow secure mounting and easy integration with existing piping systems.
- Durable Material Options: Available in stainless steel (SS304, SS316) or alloy steel (F22, F91) with optional hardfacing (Stellite) for enhanced wear resistance.
- Multiple Operation Modes: Manual handwheel, electric actuator, or pneumatic actuator – customizable according to customer requirements.
- Full Bore Design: Minimizes pressure drop and allows high flow rates, essential for boiler feed water applications.
- Low Maintenance: The plunger and seat are easily replaceable, reducing downtime and maintenance costs.
- ISO9001 Certified Manufacturing: Each valve undergoes strict quality control including hydrostatic testing, shell test, and seat leakage test.
Technical Parameters (Typical)
| Parameter | Value / Range |
| Nominal Diameter (DN) | 15 – 300 mm |
| Pressure Rating | Class 1500, 2500 (or custom) |
| Temperature Range | -20°C to 600°C |
| Connection Type | Flanged (RF / RTJ) |
| Body Material | SS304, SS316, F22, F91 |
| Seal Material | Stellite, Graphite, PTFE |
| Operation Mode | Manual, Electric, Pneumatic |
Benefits for Your Application
- Enhanced Safety: Robust construction prevents steam or water leakage, protecting personnel and equipment.
- Energy Efficiency: Full bore design reduces pressure loss, improving overall system efficiency.
- Extended Service Life: High-quality materials and precision manufacturing withstand thermal cycling and erosion, reducing replacement frequency.
- Easy Installation: Standard flanges comply with international norms (ANSI, DIN, JIS – available upon request).
- Customizable Options: Actuator type, material grade, and special coatings can be tailored to specific project requirements.
Trust & Reliability
Shanghai Zhibang Valve Manufacture Co., Ltd. has been serving the global power generation industry since 2016. With an annual export value of US$1 million to US$1.5 million, our products are exported to markets across North America, South America, Europe, Asia, Africa, and Oceania. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery. Our ISO9001 certification guarantees consistent quality, and every valve is tested before shipment. We are dedicated to providing cost-effective, high-performance solutions for boiler feed water systems.
Contact us today for a quote or technical consultation. Our experienced team will assist you in selecting the right valve configuration for your power plant requirements.
Frequently Asked Questions (FAQ)
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Q: What is the maximum operating temperature for this valve?
A: The valve can operate continuously at temperatures up to 600°C. For higher temperature requirements, please contact us for custom solutions. -
Q: Can this valve be used for superheated steam?
A: Yes, the plunger valve is suitable for superheated steam, boiler feed water, and other high-temperature media. Ensure material selection matches the specific medium. -
Q: What certifications do you have?
A: We hold ISO9001 certification for quality management. Other certifications (e.g., API, CE) are available upon request based on your project needs. -
Q: Is the valve available in electric or pneumatic actuation?
A: Yes, we offer manual, electric, and pneumatic actuation options. The actuator can be selected according to your control system requirements. -
Q: What is the lead time for a typical order?
A: Lead time depends on specification and quantity. Standard sizes (DN15-DN200) usually ship within 30-45 days after order confirmation. Larger sizes may require longer lead time. -
Q: Do you provide custom flange standards?
A: Yes, we can manufacture flanges according to ANSI, DIN, JIS, or other standards. Please specify your requirement when ordering. -
Q: How do you ensure the valve’s sealing performance?
A: Each valve undergoes a hydrostatic shell test and a seat leakage test per ISO 5208. We also use high-quality seal materials (Stellite, graphite) to ensure tight shut-off. -
Q: What is the warranty period?
A: We offer a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty is available upon request.
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