Anhui Huihuang Chain Transmission Co., Ltd. is one of the leading manufacturers and suppliers of 316l water treatment chain in China, featured by quality products and good service. If you're going to wholesale advanced 316l water treatment chain made in China, welcome to get pricelist and free sample from our factory. We also accept customized orders.
Why 316L Stainless Steel for Wastewater Applications?
High Resistance to Saline and Chloride
When exposed to high-chloride effluent, sludge, and chemical dosing systems in Wastewater Treatment Plants (WWTP), standard 304 and 316 stainless steels frequently experience premature severe pitting and crevice corrosion.
To provide outstanding endurance in challenging aquatic settings, our 316L Water Treatment Conveyor Chains are made with reduced carbon content and increased molybdenum levels.
Material Performance Comparison Matrix
| Material Grade | Carbon Content | Mo Content | PREN Index (Pitting Resistance) | High-Chloride Resistance | Ideal Application |
| SS304 | ≤ 0.08% | - | ~19 | Low | Fresh water, light processing |
| SS316 | ≤ 0.08% | 2.0% – 2.5% | ~23 | Moderate | Standard industrial effluent |
| 316L (H&H) | ≤ 0.03% | 2.0% – 3.0% | ≥ 25 | Superior (Anti-Pitting) | WWTP, Clarifiers & Bar Screens |
Key Technical Advantage: Under continuous submerged load, the ultra-low carbon formulation (≤ 0.03%) prevents stress corrosion cracking (SCC) and maintains full corrosion resistance throughout heat-affected zones by eliminating carbide precipitation during welding.
Engineering Built for Harsh WWTP Conditions
Anti-Galling & Wear-Resistant Pin-Bushing Design
Submerged operation can cause metal-to-metal galling under heavy torque. Our specialized pin and bushing surface treatments minimize friction and significantly lower the friction coefficient, effectively eliminating chain seizure during continuous operation.
Self-Lubricating Maintenance-Free Bushings (Optional)
Eliminate the risk of grease contamination in water reservoirs. Our engineered self-lubricating composite bushings provide long-term lubrication in fully submerged or intermittent wet/dry conditions, reducing routine downtime by up to 60%.
High-Precision Stamping & Pitch Accuracy
Ensures equal distribution of load across all link plates, reducing premature chain elongation and preventing catastrophic failure in wide bar screens and high-load clarifier drives.
arget Applications & Equipment Matching
Mechanized Bar Screen Chains
Specifically designed for front-clean and back-clean mechanical rake screens to lift heavy solids, debris, and abrasive grit without flexing or bending under unequal loads.
Clarifier Drive Chains & Scraper Systems
Provides smooth, non-slip power transmission for primary and secondary clarifiers, rectangular sludge collectors, and scum harvesters.
Grit Collector & Sludge Dewatering Conveyors
Resists acidic and alkaline chemical dosing agents while handling heavy sludge loads continuously.
Industrial Wastewater Processing Systems
Ideal for chemical plants, paper mills, tanneries, and food processing effluent management lines where high salinity and variable pH are constant challenges.
FAQ
Do You Require Special Attachments or a Custom Pitch for Your WWTP Equipment?
To meet major international equipment OEM specifications, we provide fully configurable 316L bar screen chains with both standardized and non-standard attachments.
Why choose 316L over 304 for wastewater treatment bar screen chains?
A: Wastewater contains chlorides, sulfides, and organic acids. 316L contains Molybdenum, which protects against severe pitting corrosion caused by chlorides. Additionally, 316L's low carbon content prevents intergranular corrosion in welded attachments.
Q: Can H&H manufacture replacement chains for existing clarifiers and bar screens?
A: Yes, we can manufacture replacement 316L conveyor chains according to your drawing, pitch size, or OEM part numbers for a seamless drop-in fit.
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