250Y structured packing section view made of corrugated perforated
metal sheet
1. 250Y structured packing's typical application fields for metal
structured packings are processes with following operating
conditions: low irrigation densities high gas loads, low pressure
drop requirement high demand of transfer units.
2. Structural dimension and characteristic parameters of stainless
steel orifice corrugated packing.
| Item | Unit | 125X | 125Y | 250X | 250Y | 350X | 350Y | 500X | 500Y |
| corrugation height h | mm | 24.0 | 11.5 | 8.4 | 6.0 |
| corrugation inclination θ | (°) | 30 | 45 | 30 | 45 | 30 | 45 | 30 | 45 |
| corrugation distance 2B | mm | 39.6 | 19.0 | 14.0 | 9.9 |
| corrugation angle β | (°) | 79.0 | 79.1 | 79.6 | 79.0 |
| void fraction ε | δ=0.15mm | % | 99.4 | 98.6 | 98.0 | 97.2 |
| δ=0.12mm | % | 99.5 | 98.9 | 98.4 | 97.8 |
| δ=0.10mm | % | 99.6 | 99.1 | 98.7 | 98.2 |
| Perforated hole diameter d0 | mm | 4.5 | 4.5 | 4.0 | 4.0 |
| Opening rate σ | % | 8.5-9.5 | 8.5-9.5 | 9.0-10.0 | 9.0-10.0 |
| radius of curvature of the top circle of corrugation angle R | mm | ≤2.0 | ≤1.4 | ≤0.9 | ≤0.5 |
Note: The influence of opening rate on the plate is not calculated
3. 250Y structured packing standard general provisions
3.1 This standard specifies the requirements for marking,
specification and characteristics, materials, manufacturing
requirements, inspection and acceptance, marking, packaging,
storage and transportation of stainless steel orifice corrugated
packing products, as well as the calculation of characteristic
parameters of orifice corrugated packing.
3.2 The corrugated packing with stainless steel orifice plate is
suitable for gas-liquid mass transfer separation tower equipment,
and the applicable temperature of the packing is - 200 ~ 400 ℃.
3.3 The structured packing is suitable for the clean gas-liquid
system without solid particles or suspended solids or easy to self
assemble.
4. Geometric parameters of 250y structured packing layer
Corrugated packing is widely used in structured packing. Its
geometric parameters are generally characterized by the geometric
structure and characteristic size of the corrugated sheet, which is
the monomer of the packing layer.
① Peak height h
② Wave distance 2B
③ Tooth apex angle ξ
④ Inclination angle of corrugation
Generally, the B ≈ h and ξ of corrugated packing are 75 - 90, 78 -
81, φ = 45 (Y type), 30 (X type).
⑤ The hydraulic (or equivalent) diameter DH is used to characterize
the size of the fluid channel of the regular packing unit, which
can be derived according to the rules of fluid mechanics
every year we manufacture and supply hundreds of cubic meters of
metal structured packing in different models. There are many
popular types and materials for option. Custom order is welcome,
too! We are happy to help with what you need!
