With the continuous advancement of ecological civilization construction in China, wastewater treatment, as the core link of water environment governance, is facing unprecedented development opportunities. From upgrading urban wastewater treatment plants to wastewater treatment in industrial parks, from rural domestic wastewater treatment to black and odorous water body remediation, wastewater treatment facilities are spread across urban and rural areas, guarding our lucid waters and lush mountains.

In the vast system of every wastewater treatment plant, valve actuators are indispensable "nerve endings" — they precisely control the on-off and regulation of water flow, air flow, and chemicals, ensuring the stable operation of every treatment process. With years of experience in R&D and manufacturing of valve actuators, Yangzhou Hengchun Electronics Co., Ltd. has launched a series of special actuator products for wastewater treatment, targeting the special working conditions of moisture, corrosion, and outdoor installation in the wastewater treatment industry, providing reliable power support for the wastewater treatment cause.

Full Process Coverage: From Influent to Effluent, Reliable Operation at Every Process Link

Wastewater treatment processes are complex. From the moment wastewater enters the plant, it goes through multiple processes such as pretreatment, biochemical treatment, advanced treatment, and sludge treatment before finally reaching discharge standards. Every process is inseparable from the precise control of valve actuators. With excellent performance and wide adaptability, Hengchun actuators can meet the application needs of full process and full technology in wastewater treatment:

Pretreatment Stage Applications

Grating & Influent Pump House

· Supporting valves for coarse and fine screens

· Influent pump inlet/outlet valves

· Influent channel control valves

· Bypass pipe valves

Grit Removal System

· Vortex grit chamber inlet and outlet valves

· Grit-water separator feed and discharge valves

· Grit discharge pipeline valves

· Aerated grit chamber air intake valves

Equalization & Homogenization

· Equalization tank inlet and outlet valves

· Homogenization tank mixing system valves

· Emergency tank related valves

· Wastewater lift pump inlet/outlet valves

Primary Treatment Stage Applications

Primary Sedimentation Tank System

· Primary sedimentation tank inlet control valves

· Primary sedimentation tank sludge discharge valves

· Primary sedimentation tank effluent weir regulation

· Sludge pipeline valves

· Scum discharge valves

Secondary Treatment (Biochemical Treatment) Stage Applications

Activated Sludge System

· Aeration tank air intake control valves (precise aeration control)

· Dissolved Oxygen (DO) automatic control valves

· Sludge return pump inlet/outlet valves

· Mixed liquor return valves

· Waste sludge discharge valves

· Valves for anaerobic and anoxic tanks

Biofilm System

· Biological filter inlet and backwash valves

· Biological rotating disc supporting valves

· Contact oxidation tank aeration valves

· Packing backwash system valves

Oxidation Ditch System

· Supporting valves for disc/brush aerators

· Ditch flow control valves

· Sludge return system valves

Nitrogen & Phosphorus Removal System

· Nitrification liquid internal return valves

· Carbon source dosing system valves

· Phosphorus removal agent dosing system valves

· Valves related to anaerobic phosphorus release and aerobic phosphorus uptake

Secondary Sedimentation Tank System

· Secondary sedimentation tank inlet and outlet valves

· Secondary sedimentation tank sludge discharge valves

· Supporting valves for peripheral drive sludge scraper/suction machine

· Sludge return and waste sludge distribution valves

Advanced Treatment Stage Applications

Filtration System

· Filter inlet valves

· Filter backwash valves (air scour, water flush)

· Filter drain valves

· Filtered water transmission valves

· Backwash pump inlet/outlet valves

Disinfection System

· UV disinfection channel inlet/outlet valves

· Sodium hypochlorite/chlorine dioxide dosing system valves

· Ozone disinfection system valves

· Disinfection contact tank related valves

Decolorization & Advanced Treatment

· Activated carbon adsorption system valves

· Advanced oxidation system valves

· Membrane treatment system (MBR, ultrafiltration, etc.) valves

· Decolorant dosing system valves

Effluent Discharge

· Effluent main valve

· Discharge outlet control valves

· Online monitoring sampling valves

· Reclaimed water reuse transmission valves

Sludge Treatment Stage Applications

Sludge Thickening

· Sludge thickening tank sludge inlet and discharge valves

· Thickening tank supernatant discharge valves

· Sludge pipeline valves

Sludge Dewatering

· Dewatering machine feed control valves

· Flocculant dosing system valves

· Dewatering machine wash water valves

· Sludge cake conveying system valves

· Filtrate return valves

Sludge Disposal

· Sludge digestion tank related valves

· Biogas collection and utilization system valves

· Sludge drying system valves

· Sludge incineration system valves

Auxiliary System Applications

Dosing System

· PAC, PAM and other coagulant dosing valves

· Acid-base regulation dosing valves

· Disinfectant dosing valves

· Carbon source, nutrient dosing valves

· Various chemical storage tank inlet/outlet valves

Aeration & Blower System

· Blower inlet/outlet valves

· Aeration main and branch pipe control valves

· Air filtration system valves

· Vent and pressure relief valves

Deodorization System

· Valves for biological filter, ion deodorization and other systems

· Odor collection pipeline valves

· Fan inlet/outlet valves

Other Utility Systems

· Plant circulating water system valves

· Fire water system valves

· Rainwater and wastewater collection system valves

· Heating and ventilation system valves

Compatible Valve Types

Hengchun actuators can be adapted to various types of valves commonly used in the wastewater treatment industry:

· Butterfly valves, gate valves, ball valves, globe valves, check valves, control valves, diaphragm valves, sludge discharge valves, knife gate valves, etc.

· Multi-turn, part-turn, linear stroke, and other drive forms

· On-off type, regulating type, intelligent type, and other functional configurations

· Standard type, waterproof type, anti-corrosion type, submersible type, explosion-proof type, and other environmental adaptations

Designed for Wastewater Conditions: Waterproof, Corrosion-Resistant, Stable & Reliable

The wastewater treatment industry has special environments — humid, watery, and corrosive. Many devices are installed outdoors, underground, or even underwater. Some areas also have flammable and explosive gases such as biogas, placing extremely high requirements on the protection performance and reliability of actuators. Targeting the special working conditions of the wastewater treatment industry, Hengchun Electronics has carried out special optimization design for its products:

High Protection Grade, Unafraid of Humid Water Environments

· IP67/IP68 Protection Grade: High-standard sealing design, adaptable to various humid environments such as outdoor rain and underground water accumulation. Some models can achieve long-term underwater operation, especially suitable for valve wells, underwater installation and other scenarios

· Double Seal Structure: Multiple sealing protections effectively prevent water vapor and moisture from entering the equipment interior, avoiding motor rust and circuit aging

· Anti-Corrosion Coating Treatment: The shell adopts special anti-corrosion coating, adapting to corrosive environments such as sewage, sludge, and chemical wastewater, extending equipment service life

Explosion-Proof Design, Coping with Hazardous Environments Such as Biogas

· Explosion-Proof Products: For areas with flammable and explosive gases such as biogas collection and sludge digestion, explosion-proof actuators are provided, meeting explosion-proof grade requirements such as Exd II BT4, ensuring production safety

· Flameproof Structure Design: Adopting flameproof enclosure, internal sparks will not ignite external explosive gases, safe and reliable

Reliable Performance, Ensuring Long-Term Stable Operation

· Long-Life Design: Core components undergo rigorous life testing to meet the long-cycle operation requirements of wastewater treatment equipment

· Low-Maintenance Design: Simple and reliable structure, reducing on-site maintenance workload and operation & maintenance costs, especially suitable for decentralized wastewater treatment stations

· Wide Temperature Range Adaptation: Can operate stably at ambient temperatures from -20°C to +60°C, adapting to climate conditions across north and south China

· Strong Anti-Interference Ability: Special anti-interference design for the complex electromagnetic environment of wastewater treatment plants, ensuring stable equipment operation

Intelligent Control, Empowering Smart Wastewater

· Precise Regulation: High-precision position feedback and control algorithms achieve precise regulation of parameters such as aeration volume, chemical dosage, and return flow, optimizing treatment effects and reducing operating costs

· Remote Monitoring: Supports bus communication, can be connected to SCADA systems for remote monitoring and operation, especially suitable for unattended scenarios such as pump stations

· Fault Self-Diagnosis: Built-in intelligent diagnosis function, real-time monitoring of equipment operating status, early warning of potential faults, reducing unplanned shutdowns

· Split Design: For special installation scenarios such as underground valve wells and humid spaces, split solutions are provided, with controllers installed in accessible positions for easy maintenance and debugging

Conclusion: With Reliable Quality, Guarding Lucid Waters and Lush Mountains

Wastewater treatment is an important part of ecological civilization construction, related to people's good life and sustainable economic and social development. From cities to villages, from industry to people's livelihood, more and more wastewater treatment facilities are being built and operated, putting forward higher requirements for equipment reliability and intelligence.

Hengchun Electronics will continue to deepen its presence in the wastewater treatment field, continuously optimize product performance, and continuously launch actuator products more adapted to wastewater conditions. With reliable quality and professional services, we will contribute to water environment governance, help turn wastewater into clear flow, and guard our lucid waters and lush mountains.