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Home > Industrial Equipment & Components > Valve > Gate Valve > Forged Steel Marine Gate Valve For Offshore Platforms Certified By 9 Classification Societies Warranty Included

Forged Steel Marine Gate Valve For Offshore Platforms Certified By 9 Classification Societies Warranty Included

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Product Spotlights

Certified by up to 9 classification societies for global offshore projects. Features forged steel construction for superior strength in high-pressure marine environments. Includes Stellite hardfaced seats for long-lasting, leak-tight sealing. Backed by a manufacturer's warranty and ISO9001 quality management. Designed for reliability on offshore platforms with options for various operations and corrosion protection.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Forged Steel (ASTM A105/A182 F304/F316)

Application:

Other, Offshore Platforms

Pressure Rating:

Class 150, 300, 600, 900, 1500, 2500

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Other, Forged Steel (ASTM A105/A182 F304/F316)

Application Other, Offshore Platforms

Pressure Rating Class 150, 300, 600, 900, 1500, 2500

End Connection Flanged (RF/RTJ), Screwed, Socket Weld

Operation Type Handwheel, Gear Operated, Electric Actuator

Seat & Disc Stellite Hardfaced, Metal-to-Metal

Size Range 1/2 inch to 24 inch (DN15 to DN600)

Design Standard API 600, API 602, BS 1414, MSS SP-42

Temperature Range -29°C to 425°C (-20°F to 800°F)

As a leading manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance forged steel marine gate valves engineered for the demanding environments of offshore platforms. Our valves are designed to deliver reliable shut-off, exceptional durability, and long service life, ensuring the safety and efficiency of your critical marine and offshore fluid systems. With extensive experience serving global markets from North America to Southeast Asia, we understand the stringent requirements of offshore operations and build our products to meet and exceed them. This certified valve represents our commitment to quality, backed by comprehensive warranties and recognized by major classification societies worldwide.

The core value of this forged steel marine gate valve lies in its robust construction and proven performance under extreme conditions. Engineered for offshore platforms, it handles seawater, hydrocarbons, and other aggressive media with superior corrosion resistance and leak-tight sealing. The valve's design prioritizes operational safety and minimal maintenance, crucial for remote offshore locations where downtime is costly.

Key Features & Technical Advantages:

Premium Forged Steel Body: Manufactured from ASTM A105 or A182 F304/F316 forged steel, providing superior mechanical strength, impact resistance, and structural integrity compared to cast alternatives, essential for high-pressure offshore applications.
Advanced Sealing Technology: Features Stellite hardfaced seats and wedges (or equivalent hard-facing alloys) for exceptional wear and galling resistance, ensuring a bubble-tight seal and extended service life even with abrasive media.
Flexible Stem Design: Available with rising stem (OS&Y) or non-rising stem designs. The rising stem design provides a clear visual indication of valve position, a critical safety feature.
Robust Operation Options: Standard handwheel operation is suitable for most applications. For larger sizes or high-pressure duties, gear operators or electric/pneumatic actuators can be fitted for remote or automated control.
Corrosion & Erosion Protection: Internal and external surfaces can be treated with specialized coatings like electroless nickel plating (ENP) or epoxy coatings upon request to enhance resistance to seawater corrosion and marine atmospheres.
Full Bore Design: Minimizes pressure drop across the valve, allowing for efficient flow of fluids and facilitating pipeline pigging operations where required.

Technical Specifications Table:

Parameter	Specification
Body & Bonnet Material	Forged Steel (A105, A182 F304, A182 F316)
Pressure-Temperature Rating	ASME B16.34, Class 150 to 2500
Seat & Wedge Hardfacing	Stellite 6 or Equivalent (Standard)
Stem Material	A182 F6a (13% Cr) or A182 F316
Packing	Flexible Graphite or PTFE (Fire-Safe option available)
Gasket Material	Spiral Wound (SS316/Graphite or PTFE)
Test Standards	API 598, ISO 5208, Shell SPE 77/300

Benefits for Your Offshore Operations:

Enhanced System Safety: The robust forged construction and certified design reduce the risk of catastrophic failure, protecting personnel, assets, and the environment.
Reduced Lifecycle Costs: The extended service life and minimal maintenance requirements lower the total cost of ownership, reducing the frequency and cost of replacements and repairs.
Operational Reliability: Consistent, leak-tight performance ensures process stability and efficiency, preventing unplanned shutdowns that can lead to significant production losses.
Regulatory Compliance: Certification by multiple classification societies simplifies the approval process for your projects and ensures adherence to international maritime and offshore standards.
Global Supply Chain Support: With shipment capabilities from major ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery to your global projects, supported by our experience in over a dozen international markets.

Shanghai Zhibang's commitment to quality is demonstrated through our ISO9001 certified manufacturing processes and a track record of exporting over US$1 million in valves annually to demanding regions worldwide, including North America, Europe, and the Middle East. Established in 2016, we have rapidly built a reputation for supplying reliable industrial valves. The inclusion of a warranty with this marine gate valve provides you with added assurance and reflects our confidence in its performance. For your next offshore platform, FPSO, or marine vessel project, choose a valve partner that combines certified quality with global logistical support. Contact us today to discuss your specifications or to request a detailed quotation.

Frequently Asked Questions (FAQ)

Which classification societies certify this marine gate valve?
This forged steel gate valve is designed and manufactured to meet the standards and can be certified by up to 9 major classification societies. Specific society approvals (e.g., ABS, DNV, BV, LR, etc.) are available upon request and are typically provided based on project requirements and customer specifications.
What is the main advantage of a forged steel body over a cast steel body for offshore use?
Forged steel offers a finer, more uniform grain structure, resulting in higher tensile strength, better impact toughness, and greater resistance to mechanical and thermal fatigue. This makes it particularly suitable for the high-pressure, high-stress, and cyclic loading conditions often encountered on offshore platforms.
Can this valve be used for subsea applications?
This valve is designed for offshore platform topside piping systems. For subsea applications, which require specialized designs with different materials, pressure ratings, and ROV interfaces, please consult with our engineering team for suitable product offerings.
What does the included warranty cover?
The standard warranty covers defects in materials and workmanship under normal use and service conditions for a specified period from the date of shipment. The exact terms, duration, and scope of the warranty are detailed in our commercial agreement and can be discussed prior to order confirmation.
Are fire-safe design options available?
Yes, fire-safe design options compliant with standards such as API 607, API 6FA, or ISO 10497 are available. These designs include features like extended graphite packing and secondary metal seals to maintain sealing integrity in the event of a fire.
What is the typical lead time for an order?
Lead times vary based on valve size, pressure class, material grade, and certification requirements. Standard configurations typically have shorter lead times. We provide estimated delivery schedules with our quotations and strive to meet project timelines through efficient planning from our Shanghai-based manufacturing facility.
Do you offer actuators for automated operation?
Yes, we can supply the valve fitted with electric, pneumatic, or hydraulic actuators from reputable brands or provide the valve prepared for actuator mounting (with a bracket and coupling). Actuator selection depends on the available power source, required torque, and control signals.
Can you provide valves with specific NACE MR0175/ISO 15156 compliance for sour service?
Valves suitable for sour service (H2S environments) can be supplied. This involves specific material grades, heat treatment procedures, and hardness controls. Please specify your sour service requirements (NACE region) during the inquiry so we can propose the correct material specification.