Certified Refrigeration Filter Cartridge: A Dual Guarantee of Compliance and Reliability for Refrigeration Systems
Release date:
2026-01-16
Certified Refrigeration Filter Cartridge: A Dual Guarantee of Compliance and Reliability for Refrigeration Systems
In the procurement and acceptance of refrigeration equipment—particularly in areas such as commercial cold chains, pharmaceutical refrigeration, and industrial refrigeration—“certification” has become a core admission criterion for refrigeration filter cartridges. Such certification not only serves as an endorsement of product quality but also constitutes a prerequisite for the system’s compliant operation and safe acceptance. This article, drawing on actual products (such as the blue industrial-grade refrigeration filter cartridge shown in the figure), analyzes the certification system, technical requirements, and application value of certified refrigeration filter cartridges.
First, the core certification system for “certification-based” programs: a rigid threshold for industry entry.
The “certification” for refrigeration filter cartridges is not a single, uniform certification; rather, it depends on the specific application scenario and the requirements that must be met.
Multi-dimensional compliance documents , mainstream certifications include:
1. Product Performance Certification
- Pressure Equipment Directive (PED) Certification ：
- Suitable for the European market, this product must meet the EN 13445 standard, requiring the filter drum shell to have a pressure resistance of ≥1.6 MPa (the product shown in the illustration is typically labeled as 2.5 MPa), and must pass a temperature cycling test ranging from -40℃ to 120℃.
- ASME BPVC Certification ：
- For core certification in the North American market, the product must pass a hydrostatic test at 1.5 times the design pressure and undergo non-destructive testing (MT/PT inspection). The welds of the flanged filter housing shown in the diagram must meet the ASME VIII-1 standard.
2. Safety and Environmental Certification
- RoHS 2.0 Certification ：
- Restricting harmful substances such as lead and mercury, the coating (blue epoxy powder) of the illustrated product must meet a cadmium content limit of ≤0.01% and is suitable for applications such as electronic cold chains and food processing.
- FDA Food Contact Material Certification ：
- Filter buckets used in the food cold chain must comply with FDA 21 CFR 175.300 standards, and the filter materials (such as molecular sieves) must be certified as posing “no risk of migration when in contact with refrigerants or the food environment.”
3. Domestic Compulsory Certification
- Pressure Vessel Manufacturing License (TS Certification) ：
- Essential for the Chinese market, products shown in the illustrations must bear the “TS” marking on the nameplate of the casing. Additionally, a “Certificate of Quality for Pressure Vessel Products” must be provided, containing 12 documents including material warranty certificates and non-destructive testing reports.
- Refrigeration Equipment Parts Filing Certificate ：
- During the acceptance inspection of commercial air-conditioning and cold-chain projects, this registration certificate must be provided to demonstrate that the product complies with the relevant requirements of GB/T 18430.1-2021 "Steam Compression Cycle Chilled Water (Heat Pump) Units."
II. Technical Features of Certified Refrigeration Filter Cylinders: From “Compliance” to “Reliability”
The technical specifications of the illustrated refrigeration filter bucket with certification (blue flange-type structure) must correspond one-to-one with the certification standards:
1. Structural and Material Compliance
- Housing material Use Q345R low-alloy steel (material certification required), meeting the chemical composition requirements for “steel used in pressure vessels” as specified by TS certification (C ≤ 0.20%, P ≤ 0.035%).
- Coating process The blue epoxy powder coating must pass the salt spray test (no rust after 500 hours) and comply with RoHS restrictions on “harmful substances in surface treatments.”
- Flange connection In compliance with GB/T 9119-2010 standard, the deviation of the bolt hole center distance shall be ≤0.5 mm, ensuring standardized installation at the project site.
2. Functional indicators match the certification.
- Filtration accuracy 20 μm (third-party test report required), meeting ASME’s requirement of “impurity interception rate ≥ 99.9% for refrigeration systems”;
- Moisture absorption capacity The molecular sieve filling amount is ≥150 g/L and passes the JIS K 1474 standard test (moisture absorption rate ≥25% at 25℃ and 60% RH), thereby avoiding the risk of “ice blockage.”
- Withstand Voltage Performance Design pressure: 2.5 MPa; hydrostatic test pressure: 3.75 MPa (a mandatory requirement under PED certification), ensuring safety under high-pressure operating conditions of the system.
III. The Value of Having Certifications: From Project Acceptance to Bottom-Line Risk Management
1. The “pass” for project acceptance
In cold-chain projects involving pharmaceutical GSP certification and food SC certification, the “Certificate of Quality” and “Certification Report” for filter buckets equipped with certificates are essential documents for acceptance inspection. In 2024, a vaccine cold storage facility experienced a 60-day delay in acceptance due to the use of unlicensed filter buckets, resulting in direct losses exceeding 500,000 yuan.
2. The “safety net” for system reliability
Batch consistency is higher for products with certification: As shown in the diagram, the filling error of the filter media in the filtration bucket is ≤ ±2% (compared to ±5% typically observed in uncertified products), which helps prevent system corrosion caused by insufficient moisture absorption. Meanwhile, the pass rate for weld inspection reaches 100% (compared to approximately 85% for uncertified products), significantly reducing the risk of leakage.
3. The “chain of evidence” for defining responsibility
In the event of a system failure, the “traceability report” for certified products—containing the production batch number and material lot number—can clearly define responsibility boundaries. For instance, in a 2025 incident involving damage to a compressor at a cold-chain warehouse, the inspection report for the certified filter cartridges confirmed that “impurities were effectively intercepted,” ultimately ruling out any liability on the part of the filter cartridges.
4. Key points for procuring products with certifications: Avoid “fake certifications.”
There are “pseudo-certified” products on the market that “provide only photocopies” or have “certification standards that do not match the products themselves.” Buyers should pay attention when making purchases:
- Request to provide Electronic certificates available on the certification body’s official website (If PED certification needs to be retrieved from the EU CE database);
- Verify the “Certificate of Quality” The production batch number matches the product nameplate. ；
- Additional requirements for food/pharmaceutical scenarios FDA Contact Testing Report for Filter Media 。
The “certification” accompanying the refrigeration filter bucket is, at its core, an industry-standardized constraint aimed at ensuring “safety, compliance, and reliability.” For the industrial-grade product illustrated here, certification is not merely a piece of paper—it’s also the fundamental safeguard that underpins risk management throughout the system’s entire lifecycle.
Keywords:
—— Striving for excellence, pursuing quality.
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