Industrial Valves: Leading Fluid Control Solutions for Water and Sewage Processing

Facing global challenges in water resource management and environmental protection, the water and sewage processing industry demands utmost reliability, corrosion resistance, and efficiency from fluid control equipment. As an innovative leader in industrial valves with over two decades of expertise, YYF delivers customized solutions covering seven core valve types for the entire spectrum of water treatment—from municipal water supply to sewage purification and wastewater recycling. From urban water mains to industrial wastewater plants, our valves excel in material performance, control precision, and environmental compliance, empowering clients to achieve safe, efficient, and sustainable water management.

I. Core Valve Types for Water and Sewage Processing: Tailored Solutions for Diverse Applications

Water treatment systems involve complex processes from raw water extraction to sludge disposal, requiring valves with varying sealing, corrosion resistance, and regulation precision. YYF integrates industry needs to offer seven key product lines:

Valve application in water and wastewater treatment industry

1. Butterfly Valves – Efficiency for Large-Diameter Pipelines

Renowned for lightweight design and quick operation, butterfly valves are ideal for large-diameter pipelines in water supply and drainage. YYF’s butterfly valves feature double-offset metal seals or EPDM soft seals, balancing tight sealing and wear resistance:

Technical Advantages:
- Ceramic anti-corrosion coating on the disc enhances chloride resistance by 300%, suitable for seawater desalination and cooling water systems;
- Smart electric actuators with ±1% positioning accuracy support PLC remote control, adapting to smart water grid digital transformation;
- Lug-type body design reduces flange spacing, saving 30% installation space and lowering pump house costs.
Applications: Municipal main water pipelines, sewage plant aeration systems, industrial cooling water networks, especially for large-diameter scenarios (DN500-DN2000) requiring frequent flow regulation.

2. Gate Valves – Sealing Benchmark for Clean Water Systems

Gate valves achieve unobstructed straight flow via wedge-shaped gates, serving as core cut-off components in clean water pipelines. YYF gate valves use forged steel or ductile iron bodies with PTFE sealing surfaces, complying with drinking water safety standards:

Technical Advantages:
- Flow 导流孔 design reduces flow resistance (Cv value increased by 20%), minimizing pump energy consumption;
- Anti-static structure prevents sparks in flammable environments, meeting API 607 fire safety certification;
- Maintenance-free self-lubricating bearings reduce operating torque by 40%, extending actuator life.
Applications: Waterworks pretreatment units, high-rise building water supply risers, fire sprinkler main pipes, suitable for low-frequency operations requiring high sealing.

3. Globe Valves – Precise Flow Regulation Experts

Globe valves achieve fine flow control through linear contact between the disc and seat, crucial for pressure regulation in water treatment. YYF globe valves feature streamlined valve cavities to minimize cavitation and erosion:

Technical Advantages:
- Multi-stage pressure-reducing valve core controls flow velocity within 5m/s, protecting downstream pipelines from high-speed erosion;
- Bellows seal structure (Patent No.: ZL2023XXXXXX) eliminates external leakage, ideal for toxic media like ozone and sodium hypochlorite;
- Explosion-proof electric actuators available for safety in high-risk environments such as petrochemical wastewater treatment.
Applications: RO membrane feed regulation, chemical dosing control, steam condensate recovery systems, especially for precise throttling in small-to-medium diameters (DN15-DN300).

4. Check Valves – Backflow Prevention Guardians

Check valves automatically block reverse flow via fluid pressure, protecting pumps and instruments from water hammer. YYF develops anti-jamming check valves for sewage containing impurities:

Technical Advantages:
- Swing-type disc with guide vanes reduces minimum activation pressure to 0.05MPa, suitable for low-head pump stations;
- Stellite alloy overlay on the seat extends erosion resistance life to over 10 years;
- Rubber buffer pads reduce water hammer pressure peaks by 60%, safeguarding pipeline safety.
Applications: Sewage pump station outlets, circulating pump inlets, reuse pipeline junctions, especially for sewage with fibers, sand, and other impurities.

5. Diaphragm Valves – Ultimate Protection for Corrosive Media

Diaphragm valves isolate media from the actuator via an elastic diaphragm, ideal for handling strong acids and alkalis. YYF offers diaphragm materials including FFKM and PVDF:

Technical Advantages:
- Dead-leg-free flow path complies with FDA food-grade standards, residue ≤0.1ml, suitable for pharmaceutical pure water systems;
Pneumatic diaphragm valves respond in <0.5 seconds for emergency shutdown;
FRP body option reduces weight by 50% compared to steel, ideal for overhead pipeline installation.
Applications: Electroplating wastewater treatment, chemical pickling lines, laboratory ultrapure water systems, especially for high-purity media where metal ion contamination is prohibited.

6. Knife Gate Valves – Solids-Handling Specialists

Knife gate valves cut fibrous materials with sharp blades, specializing in sludge and slurry in sewage treatment. YYF knife gate valves use integrally forged blades with 30% higher anti-deformation capacity:

Technical Advantages:
- Embedded seat design prevents particle jamming, passing 5mm solid particles without failure;
- Wear-resistant ceramic-coated blades cut sludge with ≥80% moisture content, doubling lifespan compared to carbon steel blades;
- Handwheel with 省力 gearbox ensures operating torque ≤150N・m, reducing manual maintenance effort.
Applications: Sewage plant 格栅前后管道，sludge thickener discharge, papermaking black liquor treatment, suitable for high-concentration media with suspended solids, fibers, and silt.

7. Ball Valves – All-Rounders for Harsh Conditions

Ball valves offer 360° sealing and quick operation, excelling in complex scenarios. YYF provides floating and trunnion-mounted ball valves for different pressure classes:

Technical Advantages:
- Full-bore design with flow resistance coefficient ≤0.15, reducing pump energy consumption by 5%-8%;
- Anti-static and fire-safe structure complies with API 6FA, suitable for flammable environments like biogas recovery;
- Special materials like stainless steel and Hastelloy resist strong corrosion from seawater and brine.
Applications: Industrial wastewater 调节池进出口，drinking water disinfection bypass pipes, seawater desalination high-pressure pumps, ideal for fast switching and high-airtightness needs.

II. YYF’s Core Competencies: Full-Chain Advantages from Materials to Service

Material Technology Leadership:
- Developed NSSC stainless steel (YYF-W1 alloy) for chlorinated water, with PREN ≥40 (25% higher than 316L), resisting stress corrosion cracking;
- HVOF-sprayed tungsten carbide coatings on sewage valve internals (hardness 1200HV), leading the industry in particle erosion resistance.
Environmental Compliance Design:
- All drinking water contact components certified by NSF/ANSI 61, lead leaching <0.2μg/L;
- Epoxy powder coating (≥200μm) on valve bodies meets ISO 12944-C5-M for salt 雾 resistance in coastal sewage plants.
Full-Life-Cycle Service:
- Valve health diagnosis using ultrasonic thickness measurement and infrared leakage detection to predict component aging;
- 7 global warehouses ensure 48-hour emergency delivery of common spares, with on-site maintenance support for urgent cases.
Smart Upgradability:
- YYF-IoT modules transmit real-time data on opening, torque, and temperature, seamless with SCADA systems;
- Digital twin technology simulates valve performance under extreme conditions to optimize process design.

III. Addressing Procurement Priorities in Water Treatment

For procurement decision-makers, valve selection balances CAPEX and OPEX. YYF addresses key needs:

Corrosion Resistance: 30%-50% longer lifespan than conventional valves in harsh environments, reducing downtime;
Compliance Assurance: End-to-end quality traceability from PMI material testing to ISO 3834 welding certification;
Customization: Tailored solutions for new processes like MBR and ozone catalytic oxidation, offering high-temperature (＞150℃) and anti-aging valves.

IV. Industry Trends and YYF’s Forward-Looking Initiatives

As the “Double Carbon” goal drives water recycling technology, valves face new challenges:

Smart Water Networks: Developing BACnet/Modbus-compatible smart valves for real-time monitoring;
Zero-Leakage Standard: Metal bellows + double-seal structure achieving Class VI bubble-tight sealing (leakage ≤5×10⁻⁹ m³/s);
Green Manufacturing: Using recycled plastic stems and low-carbon stainless steel, reducing production energy consumption by 20%.

V. Conclusion: Partner with YYF for End-to-End Water Processing Assurance

In the “water quality protection battle,” YYF industrial valves are committed to “precision control for every drop.” From safe municipal water supply to compliant industrial wastewater discharge, we leverage technological innovation to safeguard sustainable water resources. Whether for new project design or old pipeline upgrade, we deliver customized solutions to the highest industry standards—ensuring every fluid control action exemplifies efficiency and environmental responsibility.

Contact YYF’s water treatment experts today to receive a tailored valve configuration for your application, and together, build a cleaner, smarter water management system.