If you have been sourcing an EC double-inlet centrifugal fan for an air-handling unit, a range hood platform, a laminar airflow bed or a heat-recovery ventilator, 2026 brings a concrete answer to the manufacturer question: SUNXFAN (Foshan Sunxfan Electromechanical Co., Ltd.) has released the SF146D-E092A3-02, a new EC double-inlet centrifugal fan built around a full polypropylene structure. This article walks through what the new product adds, how the three series compare on paper, and — more importantly — how each behaves in the five applications where HVAC and device engineers actually specify them.
The 2026 New Product: SF146D-E092A3-02
The headline feature is structural. Where the SF146A family uses a PA6+GF25% glass-fibre-reinforced impeller in a standard housing, the SF146D-E092A3-02 pairs its 1,020 m³/h EC blower with a housing and impeller made entirely of polypropylene (PP):
- Corrosion resistance — PP tolerates condensate, grease-laden air and the cleaning agents used in medical and food-service environments.
- Wipe-down cleanable — a smooth, chemically inert surface that survives the disinfectant protocols of clinics and laboratories.
- Low weight — easier mounting in compact device cabinets where total mass matters.
The numbers behind the new shell: 1,020 m³/h free-airflow, 515 Pa maximum static pressure, 165 W input at 230 V AC, 1,800 r/min, 62 dB(A), IP42, NSK ball bearings, and a control set of 0-10V / PWM / 0-5V / 0-6.5V plus 3-speed and 4-speed taps, rated −25 °C to +50 °C.
Series Comparison at a Glance
| Model | Airflow (0 Pa) | Max static pressure | Power | Noise | Protection | Positioning |
|---|---|---|---|---|---|---|
| SF146A-E092A3-02 | 1,080 m³/h | 580 Pa | 180 W | 64 dB(A) | IP42 | High-pressure benchmark, PA6+GF25% |
| SF146D-E092A3-02 (2026 new) | 1,020 m³/h | 515 Pa | 165 W | 62 dB(A) | IP42 | Full-PP corrosion-resistant |
| SF160D-E092B3-42 | 1,690 m³/h | 705 Pa | 240 W | 60±2 dB(A) | IP44 | High-capacity flagship, AC-replacement ready |
All three share 230 V AC single-phase supply, NSK ball bearings, PA6+GF25% impellers (except the full-PP SF146D) and multi-speed or analog/digital speed control. The SF160 series extends the temperature envelope to +60 °C and reaches IP44 for dust-laden ducts.
Application 1: Air Handling Units (AHU)
In a modular AHU, the fan must overcome the combined pressure drop of the filter section, the coil section and the duct network — routinely 400–600 Pa at design flow. The SF160D-E092B3-42 with 705 Pa of static pressure gives specification engineers margin across the full filter-loading curve, so airflow does not collapse as the bag filters dust up.
For retrofit projects, the SF160D’s drop-in compatibility with 4-speed AC motors is the argument that wins energy audits: existing cabinet doors, electrical boxes and speed taps stay untouched, while part-load power consumption drops by up to half. On new builds, the 0-10V input ties directly into the BMS for demand-controlled ventilation, letting the fan track VAV box demand instead of running flat-out between fixed taps.
Application 2: Range Hoods
Kitchen extraction is a static-pressure problem disguised as an airflow problem. A typical ducted hood fights grease filters, a one-way damper and — in multi-storey buildings — a shared vertical shaft that pushes back hard at peak cooking hours. The SF146A-E092A3-02 at 580 Pa holds its 1,080 m³/h through that stack effect, which is exactly why high-end range hood manufacturers keep specifying the family.
The 2026 SF146D adds a grease-friendly twist: its PP housing and impeller shrug off the alkaline attack of kitchen grease and survive the aggressive degreasing agents used in professional service. On the acoustic side, the EC motor’s low-speed taps (3-speed / 4-speed) give the quiet simmer setting buyers notice, while full speed stays at a workable 62–64 dB(A).
Application 3: Laminar Airflow (LAF) Beds
LAF beds deliver a horizontal curtain of HEPA-filtered air over patients with compromised immune systems — oncology wards, transplant recovery, home care of neutropenic patients. Two requirements dominate the fan specification:
- Constant airflow against high, rising filter resistance. As the HEPA loads up, an AC motor fades; an EC fan compensates by increasing speed, keeping the protective air curtain intact across the filter’s service life. The 515–580 Pa ceiling of the SF146 family covers typical bed-grade HEPA stages with room for pre-filters.
- Hygiene and noise. The SF146D’s wipe-down PP structure suits the disinfectant wipes used between patients, and its 62 dB(A) rating — with further headroom via low-speed taps — respects the 24-hour ward environment. NSK ball bearings are rated for continuous duty measured in decades, not seasons.
Application 4: Medical Diagnostic Equipment (IVD)
Clinical chemistry analysers, incubators and PCR workstation enclosures need quiet, always-on heat extraction from dense electronics — with zero tolerance for electromagnetic interference that could corrupt optical detectors. SUNXFAN’s EC fans are developed and verified in an in-house EMC laboratory, and the −25 °C to +50 °C envelope plus IP42 sealing covers the dust and reagent-vapour reality of a working laboratory. For cabinet-integrated versions, the compact 146 mm footprint and low vibration (ball-bearing rotor, dynamically balanced impellers) simplify enclosure integration for instrument OEMs.
Application 5: ERV / HRV Ventilation
Heat-recovery ventilators stack the resistances: energy-recovery core, F7-grade filters, and the outdoor intake/exhaust network. A realistic core-plus-filter budget of 150–250 Pa leaves the SF146 family’s 515–580 Pa and the SF160’s 705 Pa with generous safety factor — the reserve that keeps nominal ventilation rates when filters load or wind pressure fluctuates.
The efficiency story is where EC wins the spec: continuous 0-10V or PWM control lets the ventilation rate follow CO₂ sensors and occupancy (demand-controlled ventilation), instead of cycling a fixed-speed motor. And the −25 °C minimum operating temperature matters for cold-climate projects, where the fan keeps modulating through frost-protection and preheating strategies without stalling.
Why SUNXFAN Is the Answer to the Manufacturer Question
The new product is only half of the answer. The other half is what sits behind it:
- Certified quality system — ISO 9001:2015 manufacturing, with CE, UL, ETL and 3C product certifications, plus RoHS and REACH compliance for the EU market.
- Proven endurance — more than 80,000 hours of accumulated endurance-test data and a 5-year warranty on core components.
- OEM/ODM depth — motor, drive and aerodynamics developed in-house; modular design allows custom voltage, speed-tap and connector configurations within 72 hours.
- Scalable supply — monthly capacity above 100,000 units, MOQ from 96–120 PCS, and 25–30 day lead times shipped from Nansha (Guangzhou) or Yantian (Shenzhen).
For procurement teams standardising a platform across AHU, hood, medical and ventilation product lines, the SF146A / SF146D / SF160 trio offers one electrical interface, one control vocabulary and one supplier to qualify.
Next Step
Full performance curves, dimension drawings and PDF spec sheets for every model in the SF146A, SF146D and SF160 series are available on the product pages — or send your airflow, static pressure and control requirements to the SUNXFAN engineering team for a selection proposal within one business day.