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AquaChill Tech

Industry Insights & Guides

Expert knowledge, maintenance tips, and industry trends from our engineering team with 20+ years of refrigeration experience.

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Buying GuideOctober 18, 2026· 8 min read

High-Density Shrimp Farming Temperature Control: Optimal Water Temperature & Chiller Selection for Whiteleg Shrimp

Whiteleg shrimp (Litopenaeus vannamei) grow fastest at 28–32 °C, stop feeding below 18 °C and die below ~9 °C. Here is how precise temperature control in high-density farming lifts survival, growth and feed conversion — and how to size an aquaculture chiller for it.

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Buying GuideOctober 18, 2026· 8 min read

Live Seafood Holding and Air Freight: Temperature Control That Keeps Mussels, Oysters and Rock Lobster Alive

From depuration tanks to the cargo hold, live green-lipped mussels, Pacific oysters and rock lobsters survive only inside a narrow temperature band. Here's how ±0.5 °C seawater cooling protects survival through holding, depuration and pre-air-freight chilling — and how to size the right chiller.

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Buying GuideOctober 10, 2026· 8 min read

How to Identify a Fake 5HP Water Chiller — The '3HP Disguised as 5HP' Scam & Buyer's Guide

Buying a 5HP water chiller? Learn the five tell-tale signs of a 3HP unit relabeled as 5HP — fan count, cabinet height, compressor displacement and electrical specs — before you pay.

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Buying GuideOctober 8, 2026· 8 min read

Single-Phase vs. Three-Phase Power for High-Capacity Seawater Chillers (18–21 kW Guide)

Planning an 18–21 kW seawater chiller for lobster tanks or aquaculture? Learn why 3-phase power is safer, more reliable, and more cost-effective than single-phase.

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Technical GuideSeptember 30, 2026· 9 min read

Air-Cooled vs. Water-Cooled Chiller: Pros, Cons & Sizing for Large Marine Aquariums

Standard commercial air-cooled chiller or purpose-built water-cooled chiller — which one protects a large marine aquarium? A plain-language comparison of cost, corrosion, footprint and the parallel sizing a 135-tonne tank actually needs.

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Technical GuideSeptember 30, 2026· 7 min read

Inside the Delin Factory: How Industrial Chillers Are Built, Tested & Packed

Six clips of raw factory footage — from assembly and performance testing to export packing — showing how Delin builds chillers, and why in-house production and testing matter when you source from China.

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Buying GuideSeptember 25, 2026· 9 min read

High-Capacity Chillers for King Crab & Snow Crab RAS Farming: The Key to Scalable Cold-Water Aquaculture

Land-based RAS farming of king crab and snow crab depends on rock-solid water temperature between 2 °C and 6 °C. Here is why a high-capacity, titanium-exchanger chiller is the difference between a profitable facility and lost stock.

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Buying GuideSeptember 25, 2026· 8 min read

Small Water Chiller Applications: Summer Cooling, Spawning Control & Seahorse Breeding

A small, low-noise water chiller does far more than keep an aquarium comfortable — it holds ornamental fish through hot summers, times broodstock spawning by temperature, and cools delicate seahorse breeding tanks.

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Buying GuideSeptember 24, 2026· 8 min read

Optimizing Pāua Farming: Precision Water Cooling for New Zealand Abalone RAS & Live Holding

Why New Zealand Pāua (abalone) farms need precision titanium chillers for land-based RAS and pre-export live holding — and how ±0.5 °C seawater cooling protects survival, growth and export quality.

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Technical GuideSeptember 14, 2026· 10 min read

Aquarium Chiller Plumbing and Flow Matching: Hydraulic Design for Large Tanks

The chiller is the easy part — the plumbing is what decides whether it works. Why a titanium barrel rated at 3 m³/h cannot be fed by a 12 m³/h display loop, how to size pipe by velocity, and the commissioning checks that catch the mistake before the fish do.

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Technical GuideSeptember 14, 2026· 9 min read

Mushroom Growing Room Chiller: Sizing Chilled Water Systems for Commercial Mushroom Farms

Mushroom rooms are latent-load dominated: the coil is a dehumidifier before it is a cooler. How to size a chilled water plant from compost tonnage, why the compressor runs in January, and what to specify for a washdown environment.

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Technical GuideSeptember 11, 2026· 8 min read

Cooling the Big-Headed Turtle: Water Chillers for Cold-Water Turtle RAS

Platysternon megacephalum needs 19–23 °C water, and it needs that temperature to move on a seasonal cycle. Where the chiller belongs in an RAS loop, why cold water slows the biofilter, and what to specify for a copper-free chilled-water circuit.

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Technical GuideSeptember 11, 2026· 7 min read

Hydrocooling for Produce: How Chilled Water Removes Field Heat

How hydrocooling removes field heat from leafy greens, broccoli, celery and carrots far faster than forced-air cooling, the three system configurations, target pulp temperatures by crop, and how to size the chiller and circulation loop.

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Buying GuideSeptember 11, 2026· 7 min read

Cooling Systems for Fruit & Vegetable Packing Houses

How a centralised chilled-water plant serves the five cooling duties in an agricultural processing centre — hydrocooling, wash water, process machinery, cold store assist and packaging lines — and what to specify for 24/7 harvest-season duty.

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Buying GuideSeptember 10, 2026· 8 min read

Root Zone Cooling vs Whole-Greenhouse Air Cooling: 40–70% Less Energy

Why cooling the root zone instead of the whole greenhouse air volume cuts cooling energy by 40–70%, how a root zone cooling system is plumbed, and what to specify for hydroponic, NFT and vertical farms.

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Buying GuideSeptember 10, 2026· 7 min read

How Hydroponic Water Chillers Prevent Root Rot and Boost Crop Yields in Summer

Why nutrient solution above 22 °C triggers dissolved-oxygen collapse and Pythium root rot, the optimal root-zone temperature by crop, and how to size a commercial hydroponic water chiller for DWC, NFT and vertical farms.

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Buying GuideSeptember 4, 2026· 7 min read

Rooftop Water Tank Chiller: High-Ambient T3 Cooling for Saudi Villas & Small Buildings

Why a Saudi rooftop water tank heats past 50 °C in summer, why a standard chiller cannot fix it, and how the DL-T3 high-ambient (T3-rated) process chiller range cools 1,500 L and 3,000 L rooftop tanks to 25 °C in about 9 hours at 50 °C ambient.

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Buying GuideSeptember 3, 2026· 8 min read

Commercial Aquarium Chiller: Water Features for Hotels, Malls & Restaurants

How to cool the large, round-the-clock aquarium displays found in hotel lobbies, shopping malls, themed restaurants and ocean-themed commercial spaces — and how to choose the chiller by the space it has to fit.

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Buying GuideSeptember 3, 2026· 8 min read

Fish Hatchery & Nursery Chiller: Constant Temperature Water for Seedling Rearing

Why fish, shrimp, crab and bivalve hatcheries and nursery tanks need dedicated constant-temperature cooling — and how a Delin DL-E chiller holds ±0.5°C with a pure titanium heat exchanger.

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Buying GuideSeptember 3, 2026· 8 min read

Marine Reef & Coral Aquarium Chiller: Stable Seawater Temperature for High-End Tanks

Why high-end saltwater fish tanks and coral reef systems need a seawater-grade chiller — and how Delin's pure-titanium DL-E machine keeps corals, invertebrates and marine fish at a stable temperature, quietly, 24/7.

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Technical GuideAugust 31, 2026· 7 min read

Inside Our Workshop: How Delin Manufactures Titanium Evaporators

A behind-the-scenes look at how Delin builds pure titanium (TA1/TA2) evaporators and heat exchangers in our own workshop — from coil forming and TIG welding to pressure testing and inspection, and why real in-house manufacturing matters when you source from China.

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Case StudyAugust 25, 2026· 7 min read

High-Temperature Pool Chiller: Cooling a 3,000 L Tank in the Gulf Heat

How Delin configured a 5 HP pure-titanium chiller to cool a 3,000 L potable water tank from 50–60 °C down to 25–30 °C in outdoor Saudi Arabia — the heat-load math, high-ambient design choices, and why Grade 2 titanium is non-negotiable.

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Buying GuideAugust 24, 2026· 6 min read

Ornamental Fish Aquarium Chiller: Selection & Sizing Guide

How to choose and size a constant-temperature chiller for marine reef tanks, koi ponds, and ornamental fish farms — heat-load math, Delin's pure titanium heat exchanger technology, and practical installation tips.

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Case StudyAugust 20, 2026· 4 min read

Industrial Chiller Sizing for Aeroponic Nutrient Solution Cooling

How we sized a 5HP titanium-heat-exchanger chiller to cool a 1200-gallon aeroponic nutrient reservoir from 28°C to below 22°C — the heat-load math, expected cooling time, and operational tips.

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Technical GuideAugust 20, 2026· 9 min read

Shrimp Hatchery Chiller Water Level Control: Sizing a 5 m³ Seawater Tank System

How to size and control a seawater chiller for shrimp hatchery and nursery tanks: 5 m³ per tank, 30–35 ppt salinity, 26–30°C to 20–24°C in under 1.5–2 hours, and 200,000–240,000 BTU/hr of installed duty.

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Technical GuideJuly 10, 2026· 7 min read

Titanium Evaporator vs Copper Evaporator: Which Is Better for Seawater Cooling?

A detailed comparison of titanium and copper evaporators for marine, aquaculture, and chemical cooling applications. Learn why titanium is the superior choice for corrosion resistance.

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Buying GuideJuly 5, 2026· 10 min read

How to Choose a Reliable China Refrigeration Manufacturer: The Complete Guide

A practical guide for international buyers on evaluating, selecting, and working with Chinese refrigeration equipment manufacturers. Quality, certification, communication tips.

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Technical GuideJune 28, 2026· 6 min read

Shell and Tube vs Plate Heat Exchanger: Which Is Right for Your Application?

Compare shell and tube vs plate heat exchangers across key factors: efficiency, cost, maintenance, pressure, and temperature. Expert guide for HVAC and industrial applications.

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Buying GuideJune 15, 2026· 8 min read

How to Choose the Right Seafood Cooling System for Your Business

A comprehensive guide to selecting the perfect temperature control solution for seafood processing, storage, and transportation.

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MaintenanceMay 20, 2026· 6 min read

Industrial Water Chiller Maintenance: 10 Essential Tips for Longevity

Proper maintenance can extend your industrial chiller's lifespan by years. Here are our top maintenance tips from 20+ years of experience.

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