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Home > Industrial Equipment & Components > Valve > Gate Valve > GB/T Marine Gate Valve for High Temperature Steam Lines in Marine Applications

GB/T Marine Gate Valve for High Temperature Steam Lines in Marine Applications

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GB/T Marine Gate Valve for High Temperature Steam Lines in Marine Applications photo-5

Product Spotlights

GB/T standard marine gate valve engineered for reliable isolation in high-temperature steam lines. Features robust carbon steel/stainless steel construction, high-temp sealing, and full-bore design for minimal pressure drop. Available in manual, gear, or electric actuation. ISO9001 certified manufacturing ensures quality for global marine applications, supporting operational safety and efficiency with durable, low-maintenance performance.

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

Key Specifications

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Product Standard:

GB/T

Valve Type:

Gate Valve

Primary Application:

Marine Steam Lines

Contact Supplier Request Quote Chat Now

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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Product Standard GB/T

Valve Type Gate Valve

Primary Application Marine Steam Lines

Pressure Rating PN16 - PN40 (or higher)

Connection Type Flanged (RF, FF)

Actuation Type Manual or Gear Operated

Seat Material Stainless Steel, Hardened

Body Material Carbon Steel, Stainless Steel

Suitable Medium High Temperature Steam, Water

Design Temperature Up to 425°C (or higher)

As a specialized manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our GB/T Marine Gate Valve, engineered specifically for the demanding conditions of high-temperature steam lines in marine applications. Our valves are built to provide reliable isolation, ensuring operational safety and efficiency for your vessel's critical steam systems. With our ISO9001 certified manufacturing processes and a proven track record of exporting to global markets including North America, Southeast Asia, and Europe, we deliver products that meet stringent quality and performance standards.

This valve is designed to withstand the harsh marine environment, offering robust construction and dependable shut-off capabilities. We understand that downtime is not an option at sea, which is why our marine gate valves focus on durability, ease of operation, and long service life, directly contributing to lower maintenance costs and enhanced operational continuity for your fleet.

Key Features & Technical Advantages:

Robust Construction for Marine Duty: Manufactured from high-grade materials such as carbon steel (WCB) or stainless steel (CF8/CF8M), the valve body is designed to resist corrosion from saltwater atmosphere and handle thermal stresses from high-temperature steam.
High-Temperature Sealing Integrity: Features specially designed seat and seal materials capable of maintaining a tight seal at elevated temperatures, preventing steam leakage and ensuring system efficiency.
Full Bore Design: Provides minimal pressure drop when fully open, allowing for efficient steam flow and reducing energy losses in the pipeline system.
Versatile Operation: Available in handwheel, gearbox, or electric actuator operation to suit different space constraints and automation requirements onboard.
Compliant Design: Manufactured in accordance with GB/T (Chinese National Standard) specifications, ensuring dimensional interchangeability and reliable performance that meets industry expectations.
Rising Stem & Non-Rising Stem Options: Offers flexibility in installation and space management based on the specific layout of your engine room or steam plant.

Detailed Technical Specifications:

Parameter	Specification / Range
Design & Manufacturing Standard	GB/T
Nominal Pressure (PN)	PN16, PN25, PN40 (Higher classes available)
Nominal Diameter (DN)	DN50 - DN500 (Custom sizes possible)
Suitable Medium	Saturated Steam, Superheated Steam, Hot Water
Max. Operating Temperature	Up to 425°C (797°F) – Higher grades on request
Body Material	Carbon Steel (WCB), Alloy Steel, Stainless Steel (304, 316)
Seat & Disc Material	13Cr, Stellite, SS304, SS316, or equivalent hardened alloys
Connection End	Flanged (RF, FF), BW (Butt Weld) – as per standard
Operation Mode	Manual Handwheel, Gear Operated, Electric Actuator (Optional)
Test & Inspection	Shell Test, Seat Test, Material Certification provided

Benefits for Your Marine Operations:

Enhanced System Safety: Reliable shut-off prevents accidental steam release, protecting personnel and equipment.
Reduced Maintenance Intervals: Durable materials and robust design lead to longer service life and fewer replacements.
Operational Efficiency: Full bore design and smooth operation minimize flow resistance, supporting optimal steam plant performance.
Global Supply Chain Support: With major shipment ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery to shipyards and repair facilities worldwide.

Our commitment to quality is backed by our ISO9001 certification, ensuring consistent manufacturing excellence. Serving a diverse clientele across North America, Eastern Europe, Southeast Asia, Africa, and beyond, with an annual export value demonstrating strong market trust, Shanghai Zhibang has established itself as a reliable partner for marine valve solutions. Choosing our GB/T Marine Gate Valve means investing in a component that delivers proven performance, backed by a manufacturer with global reach and a focus on customer satisfaction. Contact us today to discuss your specific requirements or to request a detailed quotation for your next marine project.

Frequently Asked Questions (FAQ):

Q: Is this valve suitable for superheated steam applications?
A: Yes, this gate valve is specifically designed for high-temperature steam lines, including saturated and superheated steam. The material selection (like alloy steels) and sealing design are tailored to handle the thermal conditions. Please specify your exact temperature and pressure requirements for a precise recommendation.
Q: What is the main difference between your GB/T valve and valves made to other standards like ANSI/API?
A: The primary differences lie in dimensional standards, pressure-temperature ratings, and some testing requirements. GB/T is a Chinese national standard widely accepted and used. Our valves are manufactured to provide reliable performance and are often dimensionally compatible or can be supplied to meet specific project specifications.
Q: Can you provide valves with electric actuators for remote operation?
A: Absolutely. While standard models are manual or gear-operated, we can equip our marine gate valves with electric actuators from reputable brands upon request. This is a common customization for automated engine room systems.
Q: What materials are recommended for seawater-cooled steam condenser lines?
A: For applications with potential exposure to seawater or brackish water cooling, we strongly recommend stainless steel (such as SS316 or SS316L) for both body and trim to ensure superior corrosion resistance.
Q: Do you offer shorter delivery times for urgent repair projects?
A: Yes, we maintain a certain inventory of standard sizes and specifications. We prioritize urgent orders for ship repairs to minimize vessel downtime. Please contact our sales team with your specific needs.
Q: Are testing certificates included with the valve shipment?
A: Yes, each valve is rigorously tested (shell test, seat test) before shipment. A standard inspection report and material certificates can be provided with the delivery documentation to meet class society or customer requirements.
Q: What is the typical lead time for a custom-sized or special material valve?
A: Lead times for custom orders vary based on complexity. Generally, for non-standard sizes or special alloys, the lead time ranges from 6 to 10 weeks. We provide accurate timelines upon receipt of your detailed inquiry.
Q: How do you ensure quality control during manufacturing?
A: Our entire production process is governed by our ISO9001 Quality Management System. This includes strict control over raw material sourcing, in-process inspections, and final testing, ensuring every valve meets the specified performance criteria.