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已核对：Ceramic Y-Type Partition Ring 是独立产品实体，和 S121 Ceramic Cross Partition Ring、S109 Ceramic Mini Lessing Ring 的内部结构不同，核心搜索意图不重复。DAIER 已验证数据库单独列有 25 / 38 / 50 / 80 mm 系列。

What Is Ceramic Y-Type Partition Ring Packing? 25–80 mm Size Selection and Application Boundaries

Ceramic Y-Type Partition Ring is a ceramic random packing that uses internal Y-shaped partitions to divide the ring interior into multiple flow passages while adding additional wetted ceramic surface. It is mainly considered for corrosive or elevated-temperature gas-liquid contacting duties where a partitioned ring geometry provides useful mass-transfer area without moving to a completely different packing family.

It should not be treated as simply another name for:

• Ceramic Cross Partition Ring;
• Ceramic Mini Lessing Ring;
• Ceramic Raschig Ring.

The central engineering question is:

When does the Y-shaped internal partition provide enough additional gas-liquid contacting value to justify the extra internal structure, ceramic weight and fouling sensitivity?

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1. What Is Ceramic Y-Type Partition Ring?

Ceramic Y-Type Partition Ring belongs to the random packing family.

Individual elements are loaded randomly into a packed tower.

The basic geometry combines:

• an external ceramic ring;
• internal Y-shaped partitions;
• several internal gas and liquid passages;
• additional wetted ceramic surfaces.

The Y-shaped internal structure makes more active use of the space inside the ring than a simple hollow Raschig Ring.

Its engineering concept is therefore:

Use internal ring volume for additional gas-liquid contacting while retaining multiple open flow passages.

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2. How Is Y-Type Partition Ring Different from a Simple Raschig Ring?

A Ceramic Raschig Ring consists essentially of a hollow cylindrical wall.

The Y-Type Partition Ring adds internal partitions.

This changes the element in two ways.

First, it creates more ceramic surface that liquid can wet.

Second, it divides the central opening into multiple smaller flow paths.

This can improve contacting opportunity, but it also means the internal flow structure is more complex.

Therefore:

More internal surface does not automatically mean better overall tower performance.

The process must benefit from the additional area without being excessively penalized by:

• hydraulic restriction;
• fouling;
• ceramic weight.

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3. How Is It Different from Cross Partition Ring?

This is the closest neighboring product and the distinction matters.

Cross Partition Ring

Uses cross-shaped internal walls that divide the interior into several sections.

Y-Type Partition Ring

Uses a Y-shaped partition arrangement, producing a different internal channel structure.

Both belong to the partitioned ceramic ring family, but they are not interchangeable product names.

Their differences can affect:

• internal surface distribution;
• flow-path geometry;
• number and shape of internal passages;
• packing weight;
• hydraulic behavior.

Therefore, supplier quotations should identify the actual geometry rather than simply specifying:

Ceramic Partition Ring

without further definition.

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4. How Is It Different from Mini Lessing Ring?

Ceramic Mini Lessing Ring also contains internal partitioning.

However, the product families use different internal arrangements and occupy different dimensional positions.

Mini Lessing Ring should therefore not be used as a synonym for Y-Type Partition Ring.

The practical procurement lesson is:

Partitioned ceramic rings must be identified by exact geometry, size and datasheet—not simply by the fact that they contain an internal wall.

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5. Verified DAIER Size Range

DAIER's catalog-aligned engineering database contains four Ceramic Y-Type Partition Ring models.

One detail is especially important:

Not every technical parameter changes monotonically with nominal packing size.

For example, the verified 80 mm entry has lower surface area as expected, but its listed void fraction and dry packing factor do not simply continue the trend of the 38 and 50 mm models.

This means final procurement should use the approved size-specific datasheet, not assumptions based only on “larger packing = more open packing.”

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6. 25 mm Y-Type Partition Ring

The 25 mm model provides the highest listed specific surface area:

240 m²/m³.

It may deserve stronger consideration where:

• mass-transfer intensity is important;
• the service is relatively clean;
• the tower diameter supports small random packing;
• hydraulic load is moderate.

Its high element count of approximately:

87,000 pieces/m³

creates many contacting elements within the bed.

That can increase gas-liquid interaction, but it can also create:

• a finer packed-bed structure;
• greater sensitivity to deposits;
• higher hydraulic resistance than larger sizes under comparable conditions.

So the 25 mm size should not be selected simply because it has the highest surface area.

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7. 38 mm Y-Type Partition Ring

The 38 mm model provides approximately:

• 160 m²/m³ surface area;
• 75% void fraction;
• 740 kg/m³ bulk density. 

This gives it a more balanced position than the 25 mm model.

It may deserve consideration where the project needs:

• meaningful contacting area;
• somewhat greater openness;
• lower packing factor than 25 mm.

For many general industrial absorption or scrubbing duties, this type of middle size may provide a more practical balance than either extreme.

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8. 50 mm Y-Type Partition Ring

The 50 mm model provides approximately:

• 138 m²/m³ surface area;
• 75% void fraction;
• 745 kg/m³ bulk density;
• 10,100 pieces/m³. 

Compared with 38 mm, the 50 mm class provides less geometric surface area and fewer packing pieces.

It may move higher on the candidate list when:

• gas throughput increases;
• fouling tolerance becomes more important;
• the tower diameter is larger;
• maximum surface-area density is no longer the main priority.

However, the published bulk density is very similar to the 38 mm model, so buyers should not assume that increasing nominal size automatically reduces bed weight significantly.

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9. 80 mm Y-Type Partition Ring

The 80 mm product occupies the largest-size end of the verified series.

Its listed data include:

• 90 m²/m³ surface area;
• 70% void fraction;
• 710 kg/m³ bulk density;
• 1,910 pieces/m³;
• 262 m⁻¹ dry packing factor. 

The unusual point is that its listed void fraction is lower than the 38 and 50 mm models, while its dry packing factor is slightly higher than the 50 mm entry.

Therefore:

The 80 mm model should not automatically be described as the most hydraulically open product simply because it is physically the largest.

Its actual hydraulic position should be evaluated from the verified product data and project operating conditions.

This is a useful example of why catalog assumptions can be dangerous.

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10. What Does the Y-Shaped Partition Actually Do?

The internal Y structure provides several additional ceramic surfaces.

Liquid entering an individual element can contact:

• the outer cylindrical wall;
• internal partition faces;
• edges and intersections.

Gas passes through the divided internal channels and around neighboring packing elements.

The geometry therefore attempts to increase:

• wetted surface utilization;
• repeated gas-liquid contact;
• local liquid redistribution.

But the same partitioning also creates additional:

• internal corners;
• contact surfaces;
• smaller flow sections.

These may matter in dirty or crystallizing service.

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11. Mass-Transfer Position

Y-Type Partition Ring is most logically considered where additional internal area provides real process value.

Smaller sizes may be more attractive where:

• absorption duty is demanding;
• packed height is constrained;
• service is relatively clean.

Larger sizes may reduce surface-area density and element count.

The correct question is therefore not:

Which size has the most area?

It is:

How much area does the process actually need while maintaining adequate hydraulic and fouling margin?

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12. Hydraulic Position

The internal Y partition means that Y-Type Partition Ring is not as structurally simple as a plain hollow ring.

Actual pressure drop depends on:

• nominal size;
• gas flow;
• liquid flow;
• bed height;
• fluid properties;
• fouling condition.

Therefore, neither:

more partitioning = better efficiency

nor:

larger size = lower pressure drop

should be used as universal rules.

Final hydraulic performance requires project operating data.

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13. Ceramic Material Advantages

Ceramic may be attractive where the process requires:

• elevated-temperature capability;
• resistance to many corrosive environments;
• non-metallic tower packing.

This can make Y-Type Partition Ring relevant to certain:

• chemical absorbers;
• acid-processing towers;
• high-temperature gas-treatment systems;
• corrosive scrubbers.

But ceramic material capability must be evaluated separately from packing geometry.

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14. Ceramic Compatibility Is Not Universal

Ceramic packing should not be specified only because the process is described as:

corrosive

or:

acidic.

Actual compatibility depends on:

• chemical species;
• concentration;
• temperature;
• ceramic composition.

Special caution may be required in environments involving:

• hydrofluoric acid;
• fluoride-containing chemistry;
• strong alkaline service.

A suitable Y-Type geometry manufactured from chemically incompatible ceramic is still unsuitable.

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15. Fouling and Crystallization

The internal Y-shaped surfaces can provide additional mass-transfer area in clean service.

But they can also create locations where:

• solids;
• salts;
• crystals;
• sticky deposits

accumulate.

This makes fouling an important selection boundary.

As fouling severity increases, engineers may prefer:

• larger packing;
• simpler internal geometry;
• more open random packing.

The packing with the strongest clean-service contact area may not deliver the best long-term operating reliability.

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16. Bed Weight

The verified Y-Type Partition Ring series has bulk densities around:

710–760 kg/m³.

That is significant for large packed beds.

Tower design should therefore consider:

• packing support load;
• wet operating weight;
• bed height;
• total packed volume.

Changing from:

• plastic;
• light metal

packing to Ceramic Y-Type Partition Ring can substantially change the mechanical load on the support system.

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17. Brittleness and Installation

Ceramic packing is mechanically hard but brittle.

Y-Type Partition Rings can be damaged by:

• excessive drop height;
• rough loading;
• transport impact;
• uncontrolled maintenance.

Broken partition sections may create:

• ceramic fragments;
• fines;
• altered internal flow geometry.

Installation should therefore minimize mechanical shock.

This is especially important because the internal partition is part of the product's intended geometry.

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18. Y-Type Partition Ring vs Cross Partition Ring

These two products should be compared based on actual geometry rather than treated as generic “partition rings.”

Y-Type Partition Ring

Uses a Y-shaped internal divider.

Cross Partition Ring

Uses cross-shaped internal partitioning.

The choice may depend on:

• specific surface area;
• void structure;
• packing size;
• fouling tendency;
• existing tower design;
• replacement compatibility.

If a plant is replacing existing packing, preserving the original partition geometry may be more important than choosing another partition ring merely because nominal diameter is similar.

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19. Y-Type Partition Ring vs Ceramic Raschig Ring

Ceramic Raschig Ring provides:

• simple hollow geometry;
• fewer internal restrictions;
• established industrial familiarity.

Y-Type Partition Ring provides:

• additional internal contacting surfaces;
• more divided internal flow paths.

Y-Type may deserve stronger consideration when:

• additional gas-liquid contacting area has meaningful value.

Raschig Ring may remain more practical where:

• severe fouling;
• simplicity;
• large uninterrupted passages

are more important.

Neither is universally superior.

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20. Y-Type Partition Ring vs Ceramic Pall Ring

Ceramic Pall Ring improves the basic cylindrical ring by introducing:

• side-wall openings;
• internal structures.

Y-Type Partition Ring instead retains a more partitioned internal-ring concept.

The two therefore solve the mass-transfer/hydraulic balance differently.

Ceramic Pall Ring may provide stronger:

• lateral flow connectivity;
• open side-wall pathways.

Y-Type Partition Ring may provide more defined:

• internal partition surfaces.

Selection should use actual technical data rather than assuming all “improved ceramic rings” are equivalent.

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21. Existing Tower Replacement

Y-Type Partition Ring can be particularly relevant in older towers already containing partitioned ceramic rings.

Before replacement, identify:

• existing geometry;
• nominal size;
• dimensions;
• packed height;
• tower ID;
• support-grid opening;
• current process performance.

If the old packing is functioning successfully, like-for-like replacement may reduce engineering uncertainty.

Changing from Y-Type to another packing geometry may be technically possible, but it should be treated as a retrofit rather than a simple purchase substitution.

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22. When Y-Type Partition Ring Is a Strong Candidate

It deserves stronger consideration where:

• ceramic material is required;
• internal contacting surfaces are valuable;
• elevated temperature is present;
• process chemistry is compatible;
• the existing tower already uses Y-Type packing;
• random packing is preferred over structured packing.

Its strongest product position is:

Ceramic capability + partitioned internal surface + conventional random-packed-tower operation.

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23. When It May Not Be the Best Choice

Its priority should decrease when:

• severe fouling or crystallization is expected;
• very low bed weight is required;
• extreme hydraulic openness is the main priority;
• ceramic chemistry is incompatible;
• mechanical vibration or frequent handling is severe;
• another modern packing geometry provides a better lifecycle balance.

Additional internal surface should solve a real process problem.

Otherwise, simpler packing may be more practical.

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Y-Type Partition Ring Size Selection Guide

Because the 80 mm verified data do not follow a simple monotonic hydraulic trend, final selection should use the actual product datasheet rather than size alone.

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Common Selection Mistakes

Treating Y-Type and Cross Partition Rings as the Same Packing

Their internal geometries are different.

Assuming More Internal Surface Is Always Better

Additional partitions can also increase fouling and hydraulic sensitivity.

Selecting 25 mm Only Because It Has the Highest Surface Area

Mass-transfer area must be balanced against operating margin.

Assuming 80 mm Must Have the Highest Void Fraction

The verified database does not support that assumption.

Ignoring Ceramic Bed Weight

Bulk density remains substantial across the series.

Assuming Ceramic Is Universally Corrosion-Resistant

Actual chemistry must be checked.

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Frequently Asked Questions

What is Ceramic Y-Type Partition Ring?

It is a ceramic random packing with internal Y-shaped partitions that add contacting surface and divide the ring into multiple internal flow passages.

Is it the same as Cross Partition Ring?

No. Cross Partition Ring uses cross-shaped internal partitions, while Y-Type uses a Y-shaped divider.

What sizes are in DAIER's verified database?

The verified series contains approximately 25, 38, 50 and 80 mm models.

Which size has the highest specific surface area?

The 25 mm model is listed at approximately 240 m²/m³.

Does larger Y-Type Partition Ring always mean higher void fraction?

No. The verified 80 mm entry has a listed void fraction of approximately 70%, so the datasheet should be reviewed rather than assuming a simple size trend.

Is Y-Type Partition Ring suitable for high temperature?

Ceramic construction can make it a candidate for elevated-temperature service when the ceramic material is chemically compatible.

Is it suitable for fouling service?

Internal partitions can collect deposits, so severe fouling or crystallization may favor simpler or more open packing.

Can Y-Type Partition Ring replace Raschig Rings?

Potentially, but changing geometry affects mass transfer, hydraulics, bed weight and support requirements and should be treated as a retrofit.

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Selection Takeaway

Ceramic Y-Type Partition Ring is a distinct partitioned ceramic random packing whose Y-shaped internal surfaces provide additional gas-liquid contacting area inside the ring.

Its strongest engineering value is:

Ceramic Material Capability + Internal Contacting Surface + Random Packing Simplicity

But the same internal structure introduces trade-offs involving:

• hydraulic restriction;
• fouling;
• ceramic bed weight;
• brittleness.

The correct selection sequence is:

Chemistry → Temperature → Required Mass Transfer → Fouling → Gas/Liquid Load → Y-Type Size → Tower Diameter → Support Load

The most important principle is:

Choose Y-Type Partition Ring when the Y-shaped internal surfaces provide a real process benefit—not simply because additional partitions appear to provide more theoretical surface area.