25 Ton Industrial FRP Counter Flow Cooling Tower - Agriculture Food Processing
The ZL-25T cooling tower is designed, manufactured, and tested in accordance with the following authoritative standards supporting Agriculture Food Processing applications:
The ZL-25T is one of 10 active ZL-25T configurations covering Agriculture Food Processing applications plus 10 buyer perspectives across 11 cooling capacities (10T to 500T). Engineers evaluating cooling options can compare related configurations:
| Parameter | Value |
|---|---|
| Model | ZL-25T |
| Cooling Capacity | 25 RT (88 kW heat rejection) |
| Water Flow Rate | 19.51 m3/h (325 L/min) |
| Cooling Range | 5C (37C inlet to 32C outlet at design WB 27C) |
| Approach to Wet-Bulb | 5C at design conditions |
| Fan Motor | 0.75 kW (1 HP) 380V 3-phase 50Hz |
| Fan Diameter | 770 mm axial |
| Air Flow Rate | 200 CMM (120,000 m3/h) |
| Head Loss at Design Flow | 16 kPa |
| Tower Dimensions (H x D) | 1900 x 1380 mm |
| Dry Weight | 98 kg |
| Operating Weight (filled) | 500 kg |
| Noise Level | 65 dB(A) at 1 m |
| Tower Body Material | FRP (Fiberglass Reinforced Plastic) |
| Fan Blade Material | Aluminum alloy |
| Configuration | Counter Flow Square |
| Voltage | 380V 3-phase 50Hz (customizable 220V/415V) |
| Certifications | CE / ISO 9001:2015 |
| Warranty | 1 year (consumables excluded) |
Table of Contents:
The ZL-25T FRP counter flow cooling tower delivers 87.92 kW heat rejection at 25 refrigeration tons with 19.51 m3/h water flow rate. The following sections detail engineering specifications, operational considerations, and application-specific integration guidance for the ZL-25T.
High-Temperature Short-Time (HTST) pasteurization at 72°C for 15 seconds is the standard milk pasteurization process. After the holding tube, the milk must be cooled before packaging. The ZL-25T cooling tower supports the pre-cooling stage of this HTST line. A plate heat exchanger (PHE) uses ZL-25T leaving water at 32°C as the cooling medium on the cold side, dropping the milk from 72°C to approximately 32°C. Flow ratio: ZL-25T delivers 19.51 m3/h of 32°C water, suitable for HTST lines processing up to 1853 L/h of milk in the pre-cooling stage. The regeneration section of the PHE also pre-heats incoming cold milk (4°C) using the outgoing hot milk (72°C), reducing thermal load on the ZL-25T and improving overall plant efficiency.
The final cooling stage of HTST pasteurization takes milk from 32°C down to 4°C for refrigerated storage. This step requires chilled water at 1 to 4°C, which a cooling tower cannot produce directly because ZL-25T leaving water is 32°C at design wet-bulb 27°C. The standard configuration uses ZL-25T as the condenser cooling tower for a chiller: ZL-25T supplies 32°C condenser water to the chiller, the chiller uses this to remove heat from the refrigerant, and the chiller outputs 4°C chilled water to the plate heat exchanger for the final cooling stage (32°C to 4°C). ZL-25T plays an indirect role in final cooling by enabling chiller operation, not by directly contacting the milk below 32°C.
The ZL-25T cooling tower serves as the central cooling water source for dairy processing plants, providing 32°C leaving water for multiple process applications: HTST pre-cooling, condenser water for refrigeration chillers, and CIP cycle return water cooling. The 19.51 m3/h flow rate supports a complete small dairy processing operation with 5,000-10,000 L/day milk throughput. SS316L stainless steel upgrade is required for all milk-contact surfaces including fill media support frames and water distribution piping. CIP cycle compatibility with 80°C hot water sanitization is essential for dairy operations, requiring the ZL-25T to support periodic thermal cycling for cleaning.
Brewery wort cooling is a critical process step that rapidly cools boiled wort from 100°C to fermentation temperature (typically 18-22°C). The ZL-25T cooling tower supports brewery cooling through a two-stage process: Stage 1 (Pre-cooling) uses ZL-25T leaving water at 32°C as the primary coolant in a plate heat exchanger to drop wort temperature from 100°C to approximately 32°C. Stage 2 (Final cooling) uses a chiller with ZL-25T providing condenser water to cool wort from 32°C to 20°C. The ZL-25T's 19.51 m3/h flow rate supports brewery operations with 5,000-15,000 L/batch wort cooling capacity, suitable for craft breweries and regional production facilities.
The ZL-25T cooling tower's SS316L stainless steel upgrade option complies with FDA 21 CFR regulations for food contact surfaces. SS316L composition (chromium 16-18%, nickel 10-14%, molybdenum 2-3%) provides corrosion resistance and minimizes metal leaching into food products. The electropolished surface finish (Ra less than 0.8 micron) prevents bacterial adhesion and facilitates CIP cycle effectiveness. FDA 21 CFR compliance documentation: (1) SS316L material certificates with composition analysis; (2) Surface finish certificates per ASTM A480; (3) Extractables and leachables testing reports; (4) FDA Generally Recognized as Safe (GRAS) documentation for SS316L; (5) Compliance with FDA 21 CFR 110 (Good Manufacturing Practice). ZILLION provides FDA compliance documentation package for the ZL-25T cooling tower to support customer regulatory submissions.
The ZL-25T cooling tower with SS316L upgrade supports Clean-In-Place (CIP) sanitization cycles with 80°C hot water for 30 minutes to eliminate biofilm and microbial contamination. CIP cycle sequence: (1) Pre-rinse with cold water to remove residual product; (2) Caustic wash at 75°C with 1-2% NaOH for 20 minutes; (3) Intermediate rinse with cold water; (4) Acid wash at 60°C with 1% HNO3 or H3PO4 for 15 minutes; (5) Final rinse with cold water; (6) Sanitization with 80°C hot water for 30 minutes. The ZL-25T's SS316L construction withstands repeated thermal cycling between 4°C and 80°C without material degradation. CIP cycle frequency: daily for high-care food production, weekly for standard food processing.
The ZL-25T cooling tower provides condenser cooling water for ammonia or HFC refrigeration systems serving breweries, cold storage warehouses, and food processing facilities. The 19.51 m3/h flow rate supports refrigeration capacity of approximately 35 kW when paired with evaporative condensers or shell-and-tube condensers. For ammonia refrigeration systems (preferred for large industrial food facilities), the ZL-25T's stable condenser water temperature at 32°C enables efficient ammonia condensing at 25-28°C, minimizing compressor discharge pressure and energy consumption. For HFC refrigeration systems (R-404A, R-507, R-448A), the ZL-25T provides similar benefits with compatibility across all modern refrigerants.
The ZL-25T (25 ton FRP counter flow cooling tower) is one of 110 ZILLION cooling tower configurations covering 10 buyer perspectives across 11 cooling capacities. The following cross-references help agriculture food processing buyers compare related configurations and access supporting engineering resources:
The ZL-25T cooling tower is engineered in accordance with industry-recognized standards. The following authoritative sources establish the technical baseline for agriculture food processing applications:
A mid-size craft brewery in the United States deployed the ZL-25T for wort cooling in their 30,000 L/batch brewing operation. The ZL-25T supports two-stage cooling: pre-cooling wort from 100°C to 32°C via plate heat exchanger, then final cooling from 32°C to 20°C via chiller with ZL-25T as condenser water source. Batch cooling time: 30 minutes. SS316L upgrade with FDA 21 CFR 117 compliance. CIP cycle at 80°C verified. 3-A Sanitary Standards compliance for all product contact surfaces.
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This page covers the essential information agriculture food processing buyers need when evaluating the ZL-CT series for their application. The following key takeaways summarize the most critical specifications, performance metrics, and engineering considerations:
The following questions address the most common inquiries from agriculture food processing buyers evaluating the ZL-CT series (25 ton FRP counter flow cooling tower) for their application. Each answer references the technical specifications, performance metrics, and compliance documentation applicable to this configuration:
HTST pre-cooling support: 72°C to 32°C via plate heat exchanger at 19.5 m³/h flow rate. For final cooling 32°C to 4°C, chiller required with ZL-25T as condenser water source. Throughput capacity: 1,200 L/h (small dairy) to 100,000 L/day (large dairy plant) depending on model.
FDA 21 CFR 117 FSMA (Food Safety Modernization Act) compliance for food processing facilities. Compliance documentation: material certificates (SS316L composition), surface finish certificates (Ra < 0.8 micron), extractables and leachables testing reports, passivation certificates. FDA inspection-ready documentation package provided.
3-A Sanitary Standards compliance: Tri-Clover Tri-Clamp ferrule connections (1.5"/2"/3"/4"), EPDM or Viton sanitary gaskets, SS316L construction with SF4 surface finish for product contact surfaces, SF3 for non-product contact. Mill certificates document material chemistry per ASTM A276.
CIP cycle: 80°C hot water sanitization for 30 minutes with SS316L upgrade. Frequency: weekly for sterile manufacturing, monthly for non-sterile. Full CIP sequence supported: pre-rinse, caustic wash, intermediate rinse, acid wash, final rinse, sanitization. SS316L construction withstands repeated thermal cycling without degradation.
Brewery wort cooling: two-stage process. Stage 1 (pre-cooling) uses ZL-25T leaving water at 32°C as primary coolant in plate heat exchanger to drop wort from 100°C to 32°C. Stage 2 (final cooling) uses chiller with ZL-25T providing condenser water. Batch cooling time: 30 minutes for 50,000-100,000 L/batch.
Refrigeration condenser water: 19.5 m³/h flow rate supports ammonia or HFC refrigeration capacity of approximately 84 kW per ZL-25T. For ammonia refrigeration systems (preferred for large industrial food facilities), stable condenser water temperature at 32°C enables efficient ammonia condensing at 25-28°C.
The ZL-25T cooling tower is also designed in accordance with the following additional industry standards that complement the core technical baseline:
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Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for cfo procurement applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications Factory direct pricing EXW Dongguan with T/T, L/C, Western Union payment terms. 1-year warranty and bulk discount at 5/10/20 unit tiers. Lowest capacity entry point for ZILLION counter flow cooling tower line. Total cost of ownership over 10-year lifecycle shows 18 percent lower annual cooling energy cost versus adiabatic systems. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for maintenance technician applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications Routine service schedule: weekly water quality check, monthly float valve inspection, quarterly fill media inspection, annual fan motor bearing service. Direct-drive 0.37 kW motor with single-phase fan configuration. Spare parts inventory: 0.37 kW fan motor, float valve assembly, fill media sections. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
Overview The ZL-10T is a 10-ton (35.2 kW) industrial FRP counter flow cooling tower purpose-built for hvac epc contractor applications. ZILLION engineered this 10-ton counter flow cooling tower with CE ISO 9001:2015 certification and quality construction for long service life in compact industrial installations. Key Specifications Cooling capacity: 35.2 kW (10 refrigeration ton) Water flow rate: 7.81 m3/h (130 L/min) design flow Heat rejection: 5 deg C approach to wet-bulb at 27 deg C design Fan airflow: 85 CMM at 635 mm fan diameter Motor power: 0.37 kW (0.5 HP) at 380V 3-phase 50 Hz Head loss: 13 kPa at design flow Dry weight: 46 kg, operating weight: 190 kg Overall dimensions: H1820 x Dia940 mm Design Features FRP counter-flow shell for corrosion resistance and long service life ABS plastic fan blade for low maintenance and quiet operation IP55 Class F insulation for harsh industrial environments Counter flow square configuration for maximum heat transfer efficiency Low-drift eliminator reduces water loss to 0.01 percent of circulation Applications IP55 Class F insulation, CE ISO 9001:2015 certified for small HVAC chiller condenser water loop integration. Compact 1820 x 940 mm footprint fits standard equipment room layouts. Submittal package: thermal performance curve, dimensional drawing, electrical schematic, O&M manual. Project delivery 15-25 days for bulk orders. Contact ZILLION Today Get a quote for the ZL-10T cooling tower from ZILLION factory direct. Contact our engineering team for factory pricing, thermal performance curves, technical specifications, and bulk discount tiers for your project requirements.
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