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Help CenterCast Steel Marine Gate Valve For Desulfurization Tower, DN100, PN16, Rising Stem, Bolted Bonnet
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As a specialized manufacturer with a focus on industrial valve solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Cast Steel Marine Gate Valve, engineered specifically for the demanding environments of Desulfurization Tower applications. Established in 2016 and backed by ISO9001 certification, we combine rigorous quality control with practical engineering to deliver valves that ensure reliable isolation, enhanced safety, and long-term operational stability in critical flue gas desulfurization (FGD) systems. This DN100, PN16 valve with a rising stem and bolted bonnet is designed to meet the challenges of abrasive slurries and corrosive media, providing a robust sealing solution for power plants and industrial facilities worldwide.
This gate valve is a cornerstone component for flow control in desulfurization processes. Its primary function is to provide a tight shut-off for pipelines carrying limestone slurry, wastewater, or other process fluids. The design prioritizes durability and ease of maintenance under continuous operation.
Key Features & Technical Advantages:
- Robust Cast Steel Construction: The valve body and bonnet are manufactured from high-quality carbon steel casting, offering superior strength and resistance to mechanical stress and pressure surges common in FGD systems.
- Designed for Abrasive Service: Features a metal seat design that withstands the erosive nature of slurries containing solid particles, ensuring a longer service life compared to soft-seated valves.
- Rising Stem for Visual Indication: The rising stem design provides a clear, visual indication of the valve position (open or closed), enhancing operational safety and preventing accidental mishandling.
- Bolted Bonnet for Secure Sealing: The bolted bonnet connection ensures a pressure-tight seal and allows for easier field maintenance and inspection of internal components without specialized tools.
- Flanged Connection Compatibility: Comes with standard flanged ends, facilitating easy and secure installation into existing pipeline networks that comply with common international standards.
- Bi-Directional Flow: Suitable for flow in either direction, offering flexibility in piping layout and installation.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Type | Marine Gate Valve (Desulfurization Application) |
| Body Material | Carbon Steel Casting (WCB) |
| Nominal Diameter (DN) | 100 |
| Pressure Rating (PN) | 16 |
| Stem Type | Rising Stem (OS&Y) |
| Bonnet Type | Bolted Bonnet |
| Seat & Disc Material | Stainless Steel (13% Cr) or other alloys available upon request |
| Connection Ends | Flanged (RF, FF, RTJ faces optional) |
| Operation | Handwheel (Gear Operator optional) |
| Design & Test Standards | API 600, API 598, ANSI B16.34, DIN, JIS, GB |
| Temperature Range | Up to 425°C (797°F) depending on trim material |
| Application | Desulfurization Towers, Slurry Lines, FGD Systems, Marine Services |
Benefits for Your Operations:
- Enhanced System Reliability: Minimizes downtime caused by valve failure in critical desulfurization processes.
- Reduced Maintenance Costs: Durable construction and accessible design lower the frequency and cost of repairs.
- Improved Safety: Clear open/close indication and secure sealing contribute to a safer working environment.
- Global Compliance: Manufactured to meet international standards, ensuring compatibility and acceptance in various markets.
- Cost-Effective Solution: Offers an optimal balance of performance, durability, and value for money in harsh industrial applications.
With an annual export value ranging from US$1 Million to US$1.5 Million and a presence in major global markets including North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has proven its capability to deliver reliable industrial valves worldwide. Our products are shipped from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our Cast Steel Marine Gate Valve means partnering with a certified manufacturer committed to quality. Its design directly addresses the specific needs of desulfurization systems, offering a dependable, long-lasting sealing solution that protects your investment and ensures process integrity. Contact us today to discuss your requirements or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: Is this valve suitable for seawater or other highly corrosive media in marine environments?
A: While the standard body is carbon steel (WCB) suitable for many desulfurization fluids, for direct seawater or highly corrosive service, we recommend discussing alternative body materials like stainless steel (CF8M/CF3M) or duplex stainless steel, which are available as customization options.
Q2: Can this valve be automated with an actuator?
A: Yes. The valve design is compatible with the installation of electric or pneumatic actuators. We can provide the valve prepared with mounting pads and a drive shaft suitable for actuator connection upon request.
Q3: What is the lead time for an order of DN100 PN16 valves?
A: For standard configurations, we typically maintain stock or offer competitive production lead times. The exact lead time depends on the order quantity and any specific customization requirements. We provide accurate timelines upon receipt of your inquiry.
Q4: Does the "Marine" in the title mean it meets specific marine classification society standards?
A: The term "Marine" indicates its suitability for services and applications common in marine and offshore industries, including desulfurization scrubbers on ships. While the standard valve is built to robust industrial standards, certifications from classification societies like ABS, DNV, or BV can be arranged as a special order.
Q5: What maintenance is required for this rising stem, bolted bonnet gate valve?
A: Routine maintenance typically involves periodic lubrication of the stem threads and checking the gland packing for leakage. The bolted bonnet design allows for relatively straightforward internal inspection and replacement of wear parts like the seat and disc if necessary, extending the valve's service life.
Q6: Are spare parts like gaskets, packing, or discs readily available?
A: Yes. As the manufacturer, we maintain an inventory of critical spare parts for our valve models. We recommend purchasing a spare parts kit with your initial valve order to minimize future downtime.
Q7: What face-to-face dimensions does this valve comply with?
A: The valve is manufactured to standard face-to-face dimensions as per API 600 or relevant ANSI/DIN standards for DN100 PN16. Detailed dimensional drawings are available for your engineering review.
Q8: How do I determine if metal seats are better than soft seats for my application?
A: Metal seats are generally preferred for desulfurization slurry applications due to their resistance to erosion, abrasion, and higher temperature capabilities. Soft seats (e.g., PTFE) offer tighter shut-off for clean fluids but can wear quickly in abrasive services. Our technical team can advise based on your specific media and operating conditions.
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