Non-Oxidizing Fungicide for Circulating Cooling Water
Broad-spectrum non-oxidizing biocide for open recirculating cooling towers. Controls algae, bacteria (including Legionella), and sulfate-reducing bacteria. Alternates with oxidizing biocides in rotation dosing.
AD-401 is a non-oxidizing microbiocide for open recirculating cooling water systems. It provides effective control of slime-forming bacteria, fungi, algae, and sulfate-reducing bacteria (SRB) that cause microbiologically-influenced corrosion (MIC). Formulated to resist resistance development when used in alternating rotation with oxidizing biocides (chlorine, bromine).
- Open recirculating cooling towers
- HVAC chilled water loops
- Power plant cooling circuits
- Oil refinery and petrochemical cooling
This product ships as part of one of our productised Water Chemistry Programs — recurring chemistry supply, KPI accountability, and engineering support bundled under a single SLA. If you’re running a program-scale duty rather than buying SKUs ad-hoc, the program path is cheaper and more reliable.
Complementary products worth specifying together.
Most industrial water programmes use 3–5 chemistries in concert — a coagulant, an antiscalant, a biocide rotation, and a corrosion inhibitor. Here are three from our catalogue that pair commonly with this product.
Procurement, dosing, and what to expect.
What is the typical lead time for Non-Oxidizing Fungicide for Circulating Cooling Water in Pakistan?
Stock-spec AD-401 ships from our Karachi warehouse within 3-5 working days. Custom-blend orders or larger volumes (>5 metric tonnes) take 2-3 weeks if drawn from our Innovative Water Technology line, or 4-6 weeks if direct-imported from Shaanxi Ande in China.
What's the minimum order quantity for AD-401?
For Non-Oxidizing Fungicide for Circulating Cooling Water, MOQ is typically 200 kg for stock-spec liquid grades and 1 metric tonne for solid/granular forms. Trial drums (25–50 kg) are available on request for new accounts running pilot tests before committing to a programme.
Do you provide technical support and a dosing programme with AD-401?
Yes. Every order includes a written dosing programme based on your feedwater analysis (LSI/S&DSI for RO, plant capacity for cooling). For ongoing supply contracts, our applications engineer visits the plant on commissioning and reviews KPIs quarterly. Emergency support via WhatsApp at +92 300 823 9990 — same engineer on the line.
How does AD-401 compare to imported alternatives?
AD-401 is produced by Shaanxi Ande Technology (China) — independent IP, international certifications, and a track record across the global power, steel, and oil sectors. Locally blended in Karachi by Innovative Water Technology when needed, which keeps pricing in PKR and lead times under a week. Quality is verified per-batch with COA; we share third-party assay on request.