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Help CenterBronze Marine Non-Rising Stem Gate Valve, Flanged End, PN16 Pressure Rating
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As a leading manufacturer with a strong presence in global markets, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Bronze Marine Non-Rising Stem Gate Valve with Flanged End and PN16 Pressure Rating. Engineered for demanding marine applications, this valve combines the corrosion-resistant properties of bronze with a robust non-rising stem design, ensuring reliable performance in seawater and other harsh shipboard environments. Since our establishment in 2016, we have dedicated ourselves to producing high-quality industrial valves, backed by our ISO9001-certified quality management system and an annual export value reflecting our international trustworthiness. This valve is a cornerstone product for shipbuilders, offshore platform operators, and marine engineers seeking durable and maintenance-friendly flow control solutions.
Our Bronze Marine Gate Valve is meticulously designed to meet the specific challenges of marine service. The use of high-grade bronze alloy provides excellent resistance to seawater corrosion, dezincification, and erosion, ensuring long service life even in the most aggressive conditions. The non-rising stem (NRS) design is a key feature for space-constrained installations commonly found on ships and offshore structures; the handwheel rotates while the stem does not move axially, saving valuable vertical space. The flanged end connection, rated for PN16 pressure, ensures a secure, leak-proof, and easy-to-install interface with piping systems, facilitating quick maintenance and replacement when necessary.
Key Product Features & Technical Advantages:
- Superior Corrosion Resistance: The bronze body and internal components are specifically chosen for marine environments, resisting the corrosive effects of saltwater, brackish water, and various marine chemicals.
- Space-Saving NRS Design: Ideal for installations with limited overhead clearance. The handwheel and stem nut assembly remain in a fixed vertical position, simplifying operation in tight engine rooms or bilge spaces.
- Robust Construction & PN16 Rating: Built to withstand a working pressure of 16 bar (PN16), making it suitable for a wide range of shipboard water, fuel, and ballast systems.
- Reliable Sealing: Features a metal-to-metal seat (wedge and body seats) that ensures tight shut-off, even after prolonged periods of operation. The design minimizes the risk of internal leakage.
- Easy Operation & Maintenance: The standard handwheel allows for straightforward manual operation. The flanged ends simplify installation and connection to existing piping, reducing downtime during servicing.
- Versatile Application: Primarily designed for marine use, including seawater cooling lines, fire mains, ballast systems, fuel oil lines, and general shipboard service water applications.
Detailed Technical Specifications:
| Parameter | Specification |
| Body Material | Bronze (CuSn-based alloy) |
| Stem Material | Bronze or Stainless Steel (optional) |
| Stem Type | Non-Rising Stem (NRS) |
| End Connection | Flanged, PN16 |
| Pressure Rating | PN16 (16 bar) |
| Seat Type | Metal Seat (Wedge & Body Seat) |
| Operation | Handwheel (Standard) |
| Temperature Range | Standard marine service temperature range |
| Application | Marine & Shipbuilding Systems |
Benefits for Our Clients: Choosing our valve translates into tangible operational advantages. You gain a corrosion-resistant component that reduces failure rates and extends maintenance intervals, lowering total cost of ownership. The non-rising stem design offers installation flexibility in compact spaces, a critical factor in marine design. The PN16 flanged connection ensures compatibility and safety within standard shipboard pressure systems. Ultimately, you receive a reliable product from a manufacturer with proven export capability to markets worldwide, including North America, Europe, Southeast Asia, and Africa.
Shanghai Zhibang's commitment to quality is evidenced by our ISO9001 certification and consistent annual export performance. Our valves are shipped from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring efficient logistics to your location, whether you are in Eastern Europe, Oceania, or the Middle East. With years of experience serving a diverse global clientele, we understand the critical need for reliability in marine applications. This Bronze Marine Non-Rising Stem Gate Valve is not just a product; it's a component built for dependability. We encourage you to contact us for detailed quotations, technical datasheets, or to discuss custom requirements for your specific project needs.
Frequently Asked Questions (FAQ):
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Q: What are the main advantages of a non-rising stem (NRS) design in a marine gate valve?
A: The primary advantage is space saving. In confined shipboard areas like engine rooms, an NRS valve requires less vertical clearance because the stem does not rise out of the valve body during operation. It also helps keep the operating mechanism clean and protected. -
Q: Is this bronze valve suitable for seawater applications?
A: Yes, absolutely. The bronze alloy used is specifically selected for its excellent corrosion resistance against seawater, making it a preferred material for marine seawater cooling, ballast, and fire main systems. -
Q: What does the PN16 pressure rating mean?
A: PN16 indicates a nominal pressure rating of 16 bar at a reference temperature (usually 20°C). It defines the maximum allowable working pressure the valve is designed to handle safely under standard conditions. -
Q: Can this valve be used for fluids other than water?
A: While designed for water-based marine services, it can generally handle other compatible non-aggressive fluids like oils or fuels. Please consult with our technical team for specific fluid compatibility based on your application. -
Q: Are the flanges standard dimensions?
A: Yes, the flanges are manufactured to standard dimensions (such as DIN, ANSI, or JIS standards, customizable upon request) to ensure compatibility with common marine piping systems. -
Q: Is manual handwheel operation the only option?
A: The standard configuration is manual handwheel operation. However, adaptations for gear operation or actuation (electric, pneumatic) may be available as optional features for remote or automated control needs. -
Q: What is your lead time and shipping process?
A: Lead times vary based on order quantity and specifications. We ship globally from ports in Shanghai, Guangzhou, Hong Kong, and Beijing, offering flexible logistics solutions to meet your project schedule. -
Q: Do you provide product certifications or test reports?
A: As an ISO9001-certified manufacturer, we can provide standard material certificates and factory test reports (e.g., pressure tests) upon request to support your quality assurance procedures.
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