Contact Platform Support
Help CenterDN100 GB/T12465-2007 Expansion Joint Large Diameter for Marine
Product Spotlights
Related Products
-
1.0MPa Rated GB/T12465-2007 Expansion Joint Flange ConnectionNegotiableMOQ: 1 Unit -
GB/T12465-2007 Compliant Expansion Joint for Marine Piping SystemNegotiableMOQ: 1 Unit
-
Double O-Ring Sealed Marine Deck Hand Pump Leak-Proof OperationNegotiableMOQ: 1 Unit
-
CCS Approved Marine Fixed Deck Manual Hand Pump Aluminum Bronze Body DN20 DN25NegotiableMOQ: 1 Unit
-
Marine Bilge Water Hand Pump Deck Mounted for Emergency DrainageNegotiableMOQ: 1 Unit
Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our DN100 GB/T12465-2007 Expansion Joint Large Diameter for Marine. As a professional manufacturer established in 2016 with ISO9001 certification, we have dedicated years to engineering high-performance expansion joints that meet the rigorous demands of marine environments. This product is specifically designed to absorb thermal expansion, vibration, and misalignment in large-diameter piping systems onboard ships and offshore platforms, ensuring long-term reliability and safety. Our commitment to quality and precision makes this expansion joint a trusted choice for shipbuilders and marine engineers worldwide.
The DN100 expansion joint complies strictly with the GB/T12465-2007 standard, which guarantees dimensional accuracy, material properties, and pressure ratings suitable for marine applications. Key features include:
- High-Quality Material: Constructed from premium stainless steel (304/316L) or customized alloys to resist corrosion from seawater and aggressive fluids.
- Large Diameter Design: DN100 (4-inch) nominal bore accommodates high flow rates and reduces pressure drop in main pipelines.
- Flexible Bellows: Multi-ply bellows provide excellent flexibility while maintaining structural integrity under cyclic stresses.
- Flanged Connections: Standard flanges (ANSI/DIN/GB) enable easy installation and alignment with existing piping systems.
- Temperature & Pressure Range: Suitable for working temperatures from -20°C to 400°C and pressures up to 1.6 MPa (customizable upon request).
- Anti-Vibration & Noise Reduction: Effectively dampens vibrations and reduces noise transmission in marine propulsion and auxiliary systems.
- Long Service Life: Reinforced bellows and rigorous quality control ensure durability under continuous operation.
Technical Specifications (Typical):
| Parameter | Value |
| Nominal Diameter | DN100 (4 inch) |
| Standard | GB/T12465-2007 |
| Bellows Material | SS304, SS316L, or Inconel (optional) |
| Flange Material | Carbon steel / Stainless steel |
| Working Pressure | 1.0 MPa (standard), up to 1.6 MPa on request |
| Working Temperature | -20°C ~ 400°C |
| Connection Type | Flanged (RF, FF, RTJ) |
| Application | Marine piping, shipbuilding, offshore platforms |
Why Choose Our DN100 Expansion Joint for Marine Use?
- Compliance with International Standards: Manufactured under ISO9001 quality management system, ensuring consistent performance.
- Customizable Options: We offer variations in bellows layers, flange drilling, and material grades to match specific project requirements.
- Rigorous Testing: Each unit undergoes hydrostatic pressure testing and leak checks before shipment.
- Global Shipping Experience: With ports of shipment in Shanghai, Guangzhou, Hong Kong, and Beijing, we deliver efficiently to all major markets including North America, Europe, Southeast Asia, and the Middle East.
- Excellent After-Sales Support: Our team provides technical documentation, installation guidance, and warranty service.
Frequently Asked Questions (FAQ):
-
Q: Is this expansion joint suitable for seawater applications?
A: Yes, when made with SS316L or higher-grade stainless steel, it offers excellent resistance to seawater corrosion. We recommend specifying the material based on the fluid composition. -
Q: What is the maximum axial movement this joint can accommodate?
A: The standard DN100 expansion joint can handle axial compression/extension of ±15mm to ±25mm depending on the design. For larger movements, custom designs are available. -
Q: Does the product come with installation instructions?
A: Absolutely. We provide detailed installation manuals and recommended torque values for flange bolts. On-site technical support can also be arranged. -
Q: Can I get a sample for testing before bulk order?
A: Yes, samples are available. Lead time for a sample is typically 5-7 working days after confirmation of specifications. -
Q: What is the typical lead time for bulk orders?
A: For standard DN100 expansion joints, production takes 15-20 working days. Larger quantities or customized versions may require 25-35 working days. -
Q: How do you ensure the joint does not leak under high pressure?
A: Each unit is hydrostatically tested at 1.5 times the rated pressure. The bellows are also inspected for any defects using dye penetrant testing. -
Q: Do you offer certificates of compliance with GB/T12465-2007?
A: Yes, we provide a material test certificate and a product inspection certificate confirming compliance with the standard. -
Q: What is the warranty period?
A: We offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are negotiable.
Trust Shanghai Zhibang Valve – Your Reliable Partner in Marine Piping Solutions
Since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. has grown into a trusted manufacturer with an annual export value exceeding US$1 million. Our ISO9001-certified factory ensures consistent quality, and our products have been shipped to over 15 markets including North America, Europe, Southeast Asia, Africa, and Oceania. We have successfully supplied expansion joints for multiple marine projects, earning positive feedback for durability and performance. With our strong supply chain and experienced technical team, we are confident in delivering solutions that meet your most demanding requirements. Contact us today for a quote or technical consultation – let us help you keep your marine systems running smoothly and safely.
Send Inquiry to This Supplier
You May Also Like
-
Marine Fuel Transfer Hand Pump Deck Mounted for Safe RefuelingNegotiableMOQ: 1 Unit
-
Cast Iron Body Marine Deck Hand Pump for Long Service LifeNegotiableMOQ: 1 Unit
-
Factory Direct Marine Deck Hand Pump With After-Sales ServiceNegotiableMOQ: 1 Unit
-
Standard Compliant Marine Deck Hand Pump With Mill Test ReportNegotiableMOQ: 1 Unit
-
304 Stainless Steel Marine Deck Hand Pump With 1500 PSI Pressure RatingNegotiableMOQ: 1 Unit
-
High Pressure 2000 PSI Marine Deck Hand Pump for Heavy Duty Marine UseNegotiableMOQ: 1 Unit
-
CS Series Marine Deck Hand Piston Pump Self-Priming Bilge Water Oil Transfer PumpNegotiableMOQ: 1 Unit
-
CB/T 495-1995 Bilge Suction Inlet for Vessel Piping SystemNegotiableMOQ: 20 Units
-
High Precision DIN Standard Floating Ball Flow Meter, Visual Liquid Flow Monitor for Oil/WaterNegotiableMOQ: 20 Units
-
JIS F3012 Marine Air Pipe for Ship Ventilation Systems | Zhibang ValveNegotiableMOQ: 10 Units
