Figure 1: Micro-structure of 250Y packing showing corrugation angles.
Technical Overview: The 250Y model is the industry workhorse, offering approximately 250 m²/m³ of specific surface area. It strikes the optimal balance between separation efficiency (HETP) and vapor handling capacity, making it the default choice for general distillation and absorption duties.
Based on FXSINO's technical datasheet (Rev.2024-06), here are the standard parameters for 250Y:
| Parameter | Value | Significance |
|---|---|---|
| Specific Surface Area | ~250 m²/m³ | Determines mass transfer efficiency. |
| Void Fraction | >98% | Ensures low pressure drop. |
| Corrugation Angle | 45° (Y-Type) | Balances capacity and efficiency. |
| Packing Factor (Fp) | ~28-33 (SI Units) | Used for calculating flooding limits. |
| Typical HETP | 400 - 500 mm | Height per theoretical plate. |
Due to its balanced performance, 250Y is widely deployed in:
Selecting the correct alloy is critical for service life. Refer to this cheat sheet:
250Y is highly sensitive to liquid distribution. A poor distributor causes channeling. Always use a high-quality pan distributor with ±5% flow uniformity.
Even a 1-degree tilt can cause vapor bypassing. Use a laser level during installation to ensure each layer is perfectly horizontal.
Q: When should I choose 250Y over 500Y?
A: Choose 250Y when you need higher capacity and lower pressure drop. Choose 500Y only when you need maximum separation efficiency in a very limited bed height.
Q: Can 250Y be cleaned in place (CIP)?
A: Yes. Its open structure allows for effective high-pressure water jetting or chemical solvent circulation.
Get precise hydraulic curves and a competitive quote for your project.
Contact FXSINO: jackieqiu9202@gmail.com | +86 18507999558
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