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Help CenterWelded Plunger Valve Refinery Oil Pipeline 350°C 2000PSI Full Bore Flanged Connection
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Shanghai Zhibang Valve Manufacture Co., Ltd is proud to present our premium Welded Plunger Valve specifically designed for refinery oil pipeline applications. Engineered to withstand extreme conditions up to 350°C and 2000 PSI, this full bore flanged connection valve offers exceptional reliability and flow efficiency. With over 7 years of manufacturing experience and ISO9001 certification, we deliver valves that meet the highest standards of safety and performance in critical oil and gas operations.
Our welded plunger valve features a robust construction that ensures leak-free operation even under high thermal and pressure stress. The full bore design minimizes pressure drop and allows easy pigging, making it ideal for refinery pipelines. The flanged connection provides a secure and standardized installation, compatible with international piping systems. This valve is a key component for flow control in crude oil, refined products, and high-temperature hydrocarbon services.
Key Features & Technical Specifications
- Welded Body Construction: Eliminates potential leak paths, enhances structural integrity at high temperatures.
- Full Bore Design: Unrestricted flow passage, reduces erosion and pressure drop, supports pipeline pigging operations.
- Flanged Connection: Available in ANSI 150-2500, DIN PN10-PN40, and custom flanges for easy installation and maintenance.
- High Temperature Resistance: Rated for continuous service up to 350°C (662°F) with optional high-temperature packing.
- High Pressure Rating: Designed for 2000 PSI (138 bar) working pressure, with hydrostatic test at 1.5 times rated pressure.
- Material Options: Carbon steel (WCB, WCC), stainless steel (CF8, CF8M, 316L), alloy steel (F11, F22) to suit various corrosive and high-temperature environments.
- Plunger & Seat: Hard-faced with Stellite or tungsten carbide for extended wear life in abrasive media.
- Sealing System: Double packing with lantern ring for leak detection and emergency sealing injection.
- Actuation Options: Manual handwheel, gearbox, pneumatic, electric actuator available upon request.
Technical Parameters
| Parameter | Value |
| Size Range | 2" - 24" (DN50 - DN600) |
| Pressure Rating | 2000 PSI (Class 1500, 2500) |
| Temperature Range | -29°C to 350°C (higher available on request) |
| Connection Type | Flanged RF / RTJ |
| Body Material | WCB, CF8, CF8M, F11, F22 |
| Trim Material | 13Cr, 304, 316, Stellite |
| Operation | Manual / Gear / Pneumatic / Electric |
| Design Standard | API 602, ASME B16.34, BS 5352 |
Our welded plunger valve offers distinct advantages for refinery operators: reduced maintenance costs due to the simple plunger design that self-cleans debris; enhanced safety with fire-safe design and anti-static devices; long service life from hardened trim and corrosion-resistant materials. The valve's compact design saves space in tight pipeline layouts, and the full bore feature ensures minimal energy loss in flow.
Shanghai Zhibang Valve Manufacture Co., Ltd has been a trusted manufacturer since 2016, with annual export value of US$1-1.5 million. Our products are shipped to over 20 countries across North America, South America, Europe, Asia, Africa, and Oceania. We hold ISO9001:2015 quality management system certification, ensuring every valve undergoes rigorous inspection and testing before delivery. Our location in Shanghai allows convenient access to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing for efficient global logistics.
We are committed to providing customized solutions for your specific refinery requirements. Whether you need special material combinations, actuation packages, or third-party inspections, our engineering team is ready to assist. Contact us today for a quote or technical consultation. Choose Shanghai Zhibang for reliable, high-performance valves that keep your refinery running smoothly.
Frequently Asked Questions
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Q: What is the maximum operating temperature of this valve?
A: The standard design is rated for 350°C continuous service. For higher temperature requirements up to 500°C, we offer special materials and packing – please consult our sales team. -
Q: Can this valve be used for steam or other media?
A: Yes, the welded plunger valve is suitable for steam, hot water, thermal oils, and various hydrocarbons. However, for corrosive or abrasive media, we recommend selecting appropriate trim materials. -
Q: What flanges are available?
A: We provide ANSI B16.5 (150, 300, 600, 900, 1500, 2500), DIN, JIS, and GOST flanges as standard. Raised face (RF) and ring type joint (RTJ) are both available. -
Q: Is the valve fire-safe certified?
A: Yes, our valves are designed to meet API 607 fire-safe standards with soft seat and metal seat options. Please specify your requirement when ordering. -
Q: What is the typical lead time?
A: For standard sizes and materials, lead time is 25-35 working days after order confirmation. Customized orders may take 40-50 days depending on complexity. -
Q: Do you provide actuation (pneumatic/electric)?
A: Yes, we can supply the valve with pneumatic, electric, or hydraulic actuators. We also offer actuator mounting kits and positioners. -
Q: How do you ensure quality?
A: We have ISO9001 certified quality system. Each valve is hydrostatically tested, shell tested, and seat leakage tested per API 598. Material certificates and test reports are provided. -
Q: Can I get a sample or small quantity for trial?
A: Yes, we accept trial orders for small quantities. Please contact our sales team to discuss sample availability and pricing.
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