Manufacturers, Exporters and Suppliers of Chilled Water & Closed Loop Corrosion Inhibitor – Rust Protection for HVAC & Recirculating Systems in Bihar

Innova Corporate (India) offers Chilled Water & Closed Loop Corrosion Inhibitors for Bihar's air conditioning systems, process chillers, and closed recirculating loops found in pharmaceutical plants (HVAC for cleanrooms), sugar mills (control rooms, offices), hotels (Patna, Bodh Gaya), hospitals, shopping malls, and food processing units. Bihar's make-up water – a mix of Ganges river water (hardness 150-300 ppm, chlorides 50-150 ppm, TDS 300-600 mg/L) and groundwater (hardness 300-600 ppm, chlorides 100-250 ppm, high iron 2-10 ppm) – can cause pitting corrosion of mild steel, copper, and brass in chillers, heat exchangers, and piping. Our inhibitors are based on molybdate (100-200 ppm as MoO₄²⁻), nitrite (400-800 ppm as NO₂⁻), or azole (tolyltriazole – TTZ for yellow metals), often blended with phosphate and polymer dispersants. For Bihar's large sugar mills (control room HVAC, laboratory chillers) and pharmaceutical cleanrooms (temperature-sensitive processes), we recommend a nitrite-borate-azole formulation that provides excellent protection for mixed metallurgy systems (mild steel pipes, copper coils, brass valves, stainless steel plates). The inhibitors work by forming a protective passive layer (γ-Fe₂O₃ or Fe₃O₄) on metal surfaces and by blocking cathodic sites. They also contain buffering agents (borate, bicarbonate, or phosphate) to maintain pH between 8.5-10.5 (ideal for closed loops). Our products are free of heavy metals (no chromium, no lead) and meet BSPCB discharge limits for the occasional blowdown. For smaller chiller systems (e.g., in rice mills, hotels), we offer easy-to-use liquid inhibitors with built-in dye tracer (fluorescein or rhodamine) for leak detection and concentration monitoring. For food-grade closed loops (e.g., chillers for dairy processing, fruit cold storage), we supply NSF/ANSI Standard 60 certified inhibitors (usually molybdate-based, with no nitrite or azole). Annual maintenance includes system cleaning (using our closed loop cleaners – alkaline and acidic) to remove existing corrosion products and biofilms, followed by inhibitor recharge. We supply complete test kits for nitrite (DPD or ferrous ammonium sulfate), molybdate (thiocyanate colorimetric), pH (electrode or strips), conductivity, and azole (UV absorbance at 256 nm). For automated control, we offer injection systems with conductivity-based blowdown and nitrite/molybdate sensors. Properly treated closed loops in Bihar can operate for 10-15 years without corrosion failures. Available in 25L, 200L drums, and 1000L IBCs.

Our multi-functional formulation achieves superior results by combining highly effective ferrous and non-ferrous corrosion inhibitors with a non-carbonate buffer, scale inhibitors, and dispersants. This comprehensive approach ensures that your closed-circuit networks in Bihar remain clean and scale-free. To further enhance system maintenance, the formulation incorporates a specialized leak detection tracer dye, allowing for improved monitoring and control procedures while significantly extending the operational lifespan of your chilled water networks and HVAC systems throughout the city.