Cast Steel Marine Rising Stem Gate Valve, Full Port Design, Fire-Safe API 607 Certified
Product Spotlights
As a specialized manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance Cast Steel Marine Rising Stem Gate Valve. Engineered for the most demanding industrial and marine applications, this valve combines robust construction with critical safety features. Our commitment to quality, underscored by our ISO9001 certification, ensures that every valve delivers reliable shut-off, exceptional durability, and the vital fire-safe protection required in offshore platforms, shipboard systems, and hydrocarbon processing plants. With an annual export value demonstrating our global reach across markets from North America to Southeast Asia, we provide solutions you can trust.
This valve is designed to excel where performance and safety are non-negotiable. Its full port design minimizes pressure drop and allows for the full bore passage of fluids, which is crucial for efficient system operation. The rising stem (OS&Y) design provides a clear visual indication of the valve's open or closed position, enhancing operational safety. The core of its value lies in its API 607 fire-safe certification, meaning it is rigorously tested to maintain sealing integrity even under extreme fire conditions, preventing catastrophic failure.
- Superior Construction: Manufactured from high-grade cast steel, offering excellent resistance to corrosion, erosion, and high pressure, ensuring a long service life in harsh environments.
- Fire-Safe Integrity: Features a specially designed metal-seated fire-safe seal. In the event of a fire, the primary soft seal may degrade, but the secondary metal-to-metal seal engages to prevent leakage, complying with API 607 standards.
- Full Flow Efficiency: The full port design ensures minimal flow restriction, reducing turbulence and energy loss, which is ideal for applications requiring efficient pumping and fluid transfer.
- Reliable Sealing: Utilizes a flexible wedge or solid wedge gate (depending on model) paired with precision-machined seats for bubble-tight shut-off, essential for isolation and safety.
- Easy Operation & Maintenance: The rising stem mechanism is packed with high-temperature graphite packing, adjustable for wear, and the standardized flanged ends facilitate easy installation and integration into existing piping systems.
- Versatile Application: Suitable for a wide range of media including water, oil, gas, steam, and corrosive fluids, across industries like marine, oil & gas, petrochemical, and power generation.
The technical specifications below detail the standard configurations available. Customizations for specific pressure ratings, materials, or actuation methods are available upon request to meet your precise project requirements.
| Design Standard | API 600, API 6D, BS 1414 |
| Fire Test Standard | API 607 6th Edition |
| Pressure Class (ANSI) | 150, 300, 600 |
| Size Range (NPS) | 2" to 24" (Custom sizes available) |
| End Connection | RF (Raised Face) Flange, RTJ (Ring Type Joint) Optional |
| Stem Material | Stainless Steel (A182 F6/F304/F316) |
| Seat & Gate Material | 13% Cr Stainless Steel / Stellite Hardfacing Optional |
| Packing Material | Flexible Graphite (Fire-Safe) |
Choosing our valve means investing in safety and reliability. The fire-safe certification is not just a label; it's a result of stringent design and testing that provides an additional layer of protection for your assets and personnel. The full port design translates to operational cost savings through reduced pumping energy. Furthermore, the robust cast steel construction minimizes maintenance downtime and replacement costs, offering a superior total cost of ownership.
Backed by our ISO9001-certified manufacturing processes and a proven track record of supplying valves across a global network spanning North America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang stands as a reliable partner. Our annual export volume is a testament to the consistent quality and performance our international clients depend on. We support flexible shipment from major ports including Shanghai, Guangzhou, and Hong Kong to ensure timely delivery. For your next critical project requiring a durable, high-flow, and certified fire-safe isolation valve, look no further. Contact us today for a detailed quotation, technical datasheets, or to discuss your specific application needs.
Frequently Asked Questions (FAQ)
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What does "Fire-Safe API 607 Certified" mean for my application?
This certification confirms the valve has passed rigorous tests simulating a fire scenario. It ensures that if the primary soft seal fails due to heat, a secondary metal seal will engage to maintain a leak-tight closure, preventing the escalation of a fire. This is mandatory for many oil, gas, and marine safety standards. -
What is the advantage of a Full Port design over a Standard Port?
A Full Port (or Full Bore) valve has an internal diameter matching the connecting pipe, eliminating flow restriction. This reduces pressure drop, minimizes cavitation risk, allows for easier pigging, and improves overall system efficiency compared to a Standard Port valve. -
Can this valve be used for both on/off service and flow regulation?
Gate valves, including this model, are primarily designed for isolation (fully open or fully closed). Using them for throttling or flow regulation can cause vibration, seat erosion, and premature wear. We recommend using control valves for precise flow regulation. -
What media is this cast steel valve suitable for?
It is suitable for a wide range, including water, steam, oil, natural gas, and certain corrosive fluids. The exact suitability depends on the specific material grades selected (e.g., carbon steel, stainless steel trim). Please consult our datasheet for chemical compatibility. -
Is the valve suitable for underground burial installation?
The standard design is for above-ground installation. For buried service, specific modifications like extended stems, special coatings (e.g., epoxy), and protection for the operating mechanism are required. These can be provided as customizations. -
Do you provide actuation options for this valve?
Yes. While supplied with a standard handwheel, this rising stem gate valve can be easily fitted with electric, pneumatic, or hydraulic actuators for remote or automated operation. We can supply the complete assembly. -
What is the lead time for standard sizes?
For standard ANSI Class 150 & 300 valves in common sizes (2" to 12"), we typically maintain stock or can deliver within 4-6 weeks. Larger sizes or specific classes may require longer production time, which we will confirm upon order inquiry. -
How do I identify if the valve is open or closed?
The rising stem (OS&Y) design provides clear visual indication. When the stem is raised high, the valve is open. When the stem is lowered, the valve is closed. This is a key safety feature not present in non-rising stem designs.
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