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Help CenterGB/T12465-2007 Compliant Expansion Joint for Marine Piping System
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Shanghai Zhibang Valve Manufacture Co., Ltd., a reliable manufacturer since 2016, proudly presents our GB/T12465-2007 Compliant Expansion Joint for Marine Piping System. Designed to withstand the demanding conditions of marine environments, this expansion joint effectively absorbs thermal expansion, vibration, and misalignment in shipboard piping networks. Our commitment to quality and precision ensures that each joint meets strict Chinese national standards, providing long-lasting performance and safety for your marine operations.
With an annual export value exceeding US$1 million and ISO9001 certification, we deliver products that are trusted by clients across North America, Europe, Southeast Asia, and beyond. The expansion joint is engineered with robust materials and advanced manufacturing techniques, making it an ideal solution for ballast systems, cooling water lines, fuel oil transfer, and other critical marine applications. Our factory in Shanghai offers flexible customization options to meet specific project requirements.
Key Features & Technical Specifications
- Standard Compliance: Fully compliant with GB/T12465-2007, ensuring reliable performance in marine piping systems.
- Vibration Absorption: Reduces mechanical vibrations transmitted through pipes, protecting pumps, valves, and other equipment.
- Thermal Compensation: Compensates for axial, lateral, and angular movements caused by temperature changes.
- Corrosion Resistance: Available in stainless steel, rubber, PTFE, or composite materials to resist seawater corrosion.
- Easy Installation: Flanged ends simplify connection to existing piping; optional threaded or welded connections available.
- High Pressure Rating: Working pressure up to 2.5 MPa, suitable for high-pressure marine systems.
- Wide Temperature Range: Operates reliably from -20°C to +150°C, with options for extreme temperatures.
- Customizable Dimensions: Manufactured in sizes from DN50 to DN600, with non-standard sizes available upon request.
| Parameter | Value |
|---|---|
| Nominal Diameter (DN) | 50 – 600 mm |
| Working Pressure | 0.6 – 2.5 MPa |
| Temperature Range | -20°C to +150°C |
| Axial Displacement | ±10 mm to ±30 mm (depending on size) |
| Lateral Displacement | ±5 mm to ±15 mm |
| Angular Deflection | ±2° to ±5° |
| Connection Type | Flanged (ANSI, DIN, JIS, GB) / Threaded / Welded |
Product Advantages & Customer Benefits
- Enhanced System Reliability: By absorbing pipe stress and movement, our expansion joint extends the lifespan of pipelines and reduces maintenance costs.
- Seawater Resistance: Optional rubber bellows with nylon reinforcement or stainless steel bellows ensure long service life in saltwater environments.
- Space Saving: Compact design fits into tight spaces common in marine engine rooms and pump compartments.
- Compliance with Classification Societies: Meets requirements of major marine classification societies (available upon request).
- Quick Delivery: Standard sizes are ready for shipment within 15–25 working days; custom orders require 30–45 days.
- Warranty: 12-month warranty against manufacturing defects, with extended warranty options available.
Trust & Quality Assurance
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted manufacturer in the valve and piping industry since 2016. Our ISO9001:2015 certified quality management system ensures consistent product quality from raw material procurement to final inspection. We export to over 20 countries and regions, with an annual export value of US$1–1.5 million. Our professional team provides technical support, customized solutions, and after-sales service. We are located in Shanghai, one of China’s largest industrial hubs, with convenient access to major ports (Shanghai, Guangzhou, Hong Kong, Beijing) for global shipping.
We understand that marine environments demand robust and reliable components. Our expansion joint is rigorously tested for pressure, leak tightness, and movement capacity before shipment. With a strong reputation in the domestic market and growing presence in international markets, we are your reliable partner for marine piping solutions. Contact us today for a quote or technical consultation.
Frequently Asked Questions (FAQ)
-
What is the standard for this expansion joint?
It complies with Chinese national standard GB/T12465-2007, which specifies requirements for flexible pipe joints used in marine piping systems. -
Can it be used in seawater applications?
Yes, our expansion joint is available in corrosion-resistant materials such as stainless steel (316L) or EPDM rubber, making it suitable for seawater. -
What is the maximum working pressure?
Standard models handle up to 2.5 MPa. Higher pressure ratings can be engineered upon request. -
Do you provide custom sizes?
Yes, we offer custom dimensions, pressure ratings, and connection types. Please provide your requirements for a quotation. -
How long is the warranty period?
We offer a standard 12-month warranty. Extended warranty is available for an additional cost. -
What is the typical lead time?
For standard sizes, lead time is 15–25 working days. Custom orders require 30–45 working days, depending on complexity. -
Do you have certificates other than ISO9001?
Our ISO9001:2015 certification covers the entire production process. Other certifications (e.g., classification society approvals) can be provided upon request, subject to additional fees. -
Which ports do you ship from?
We ship from Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring flexible logistics options for international customers.
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