API 1581 Category CAA56-5 CAA Series Replacement Coalescer Element

1. Product OverviewThe CAA Series 5 Coalescing Filter Cartridge is a standard industrial coalescing element designed for fuel oil and gas-liquid separation. Complying with API 1581 5th Edition Category C standards, it is widely used to remove fine water droplets, emulsified moisture and solid particles from aviation fuel, diesel, petrochemical oil and natural gas. It is a direct replacement for mainstream industrial coalescer separator cartridges with stable and reliable purification performance.2. Structural FeaturesThis filter cartridge adopts a multi-layer gradient glass fiber composite structure with staged filtration and coalescence functions. The outer layer blocks large dirt and rust; the middle high-precision glass fiber layer captures micro water droplets and aggregates them into large droplets for gravity separation. The internal perforated metal support frame improves pressure resistance and prevents filter layer deformation. Integrated epoxy sealing effectively av

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API 1581 Category CAA56-5 CAA Series Replacement Coalescer Element
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Product Introduction

1. Product Overview

The CAA Series 5 Coalescing Filter Cartridge is a standard industrial coalescing element designed for fuel oil and gas-liquid separation. Complying with API 1581 5th Edition Category C standards, it is widely used to remove fine water droplets, emulsified moisture and solid particles from aviation fuel, diesel, petrochemical oil and natural gas. It is a direct replacement for mainstream industrial coalescer separator cartridges with stable and reliable purification performance.

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2. Structural Features

This filter cartridge adopts a multi-layer gradient glass fiber composite structure with staged filtration and coalescence functions. The outer layer blocks large dirt and rust; the middle high-precision glass fiber layer captures micro water droplets and aggregates them into large droplets for gravity separation. The internal perforated metal support frame improves pressure resistance and prevents filter layer deformation. Integrated epoxy sealing effectively avoids fluid bypass and ensures full filtration efficiency. Multiple sealing options including NBR, FKM and EPDM adapt to different working media.

3. Core Performance Advantages

  • High separation efficiency: Water removal efficiency up to 99.9%, effectively removing emulsified water and tiny impurities.

  • Large dirt holding capacity: Gradient density filter media extends service life and reduces replacement frequency.

  • Strong pressure resistance: Stable structure resists differential pressure impact, no collapse under continuous operation.

  • Wide adaptability: Working temperature ranges from -20℃ to 120℃, suitable for oil, gas and various hydrocarbon media.

  • Standard interchangeability: Classic models include CAA22-5SB, CAA28-5SB, CAA38-5SB, fully compatible with standard separator housings.

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4. Main Applications

CAA Series 5 coalescing filter cartridges are widely applied in aviation fuel depots, gas stations, petrochemical refineries, natural gas transmission stations, marine fuel systems and power plant lubricating oil systems. It effectively protects precision equipment such as separators, compressors and fuel pipelines, avoiding corrosion, blockage and equipment failure caused by moisture and impurities.


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5. Specifications & Customization

We provide full standard CAA series specifications and support non-standard customization of size, length and sealing materials. All products are manufactured strictly in accordance with API industrial standards and can provide factory test reports and qualification certificates.





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