Double Flange Limit Expansion Joint
A Double Flange Expansion Joint is a critical engineered component designed to accommodate significant axial movement, vibration, and misalignment within pipeline systems. These joints are essential for maintaining system integrity, particularly in applications involving high temperatures and pressures. For systems requiring controlled movement within strict limits, the Double Flange Limited Expansion Joint provides the necessary constraints to prevent over-extension and potential damage. In scenarios demanding a compact design capable of handling multi-directional movement, the Double Flange Telescopic Expansion Joint offers superior flexibility and performance. Our products are manufactured to exacting international standards, ensuring reliability, durability, and long-term service life in demanding industrial environments, including power generation, chemical processing, and HVAC systems.
The Double Flange Limit Expansion Joint is engineered with precision to offer predictable performance. Its robust design features dual flanges for secure and leak-proof bolting to adjacent piping, while internal mechanisms ensure movement is precisely contained within the specified limits. This controlled flexibility protects the entire pipeline from stress-induced failures. The construction utilizes high-grade materials, selected based on the specific media and environmental conditions, to guarantee corrosion resistance and structural integrity under cyclic loading. The <产品名字> is a versatile solution, effectively isolating noise and vibration, which contributes to a safer and more efficient operation. Below are the detailed technical parameters and standard specifications that define our high-quality product range.
Key Product Parameters
- Design Standards: Compliant with EJMA, ASME, ANSI, and other international standards.
- Movement Capacity: Axial compression/extension, lateral, and angular movement as per design.
- Pressure Rating: Designed for pressures from vacuum conditions up to high-pressure applications (e.g., 150 psi to 300 psi standard, higher ratings available).
- Temperature Range: Suitable for a broad spectrum from cryogenic applications to high-temperature services up to 800°F (427°C), depending on materials.
- Flange Standards: ANSI B16.5, DIN, JIS, or other standards to match customer piping specifications.
- Flow Media: Compatible with water, steam, oil, gas, and various chemical fluids.
Standard Material Specifications
| Component | Standard Material | Alternative Materials (Available) |
|---|---|---|
| Bellows | AISI 304 / 316 Stainless Steel | Inconel 625, Hastelloy C-276, AISI 321 |
| Flanges & End Pipes | Carbon Steel (ASTM A234 WPB) | Stainless Steel (A182 F304/316), Alloy Steel |
| Inner Sleeve | AISI 304 Stainless Steel | AISI 316 Stainless Steel |
| External Hardware (Bolts/Nuts) | Carbon Steel, Zinc Plated | Stainless Steel (A193 B8) |
| Gaskets | Graphite Filled | PTFE, Compressed Asbestos Fiber (CAF) |
| Paint / Coating | Epoxy Primer | High-Temperature Paint, Specialized Coatings |
Standard Size Range & Tolerances
| Nominal Pipe Size (NPS) | Length (Standard) ± Tolerance | Maximum Axial Movement (Example) | Pressure Test |
|---|---|---|---|
| 2" - 12" | 12" ± 1/8" | ± 1.5" | 1.5 x Design Pressure |
| 14" - 24" | 18" ± 1/8" | ± 2.0" | 1.5 x Design Pressure |
| 26" - 48" | 24" ± 1/4" | ± 3.0" | 1.5 x Design Pressure |
| 50" and above | Custom | Custom Design | Per Project Specification |
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