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The Water Treatment Stainless Steel EPDM Seated Butterfly Valve is a high-performance flow control device engineered specifically for demanding water-related applications. Combining an all-stainless-steel body construction with a resilient EPDM elastomeric seat, this valve delivers exceptional corrosion resistance, reliable shutoff, and long service life in environments where conventional cast iron valves would quickly deteriorate. It is the preferred choice for municipal water treatment, marine systems, food processing, and industrial fluid handling.
Body and Disc Materials: Manufactured from SS304 or SS316 stainless steel, providing outstanding resistance to rust, pitting, and corrosion.
Application Suitability: Ideal for seawater, potable water, high-humidity environments, and mildly corrosive media. Compared to cast iron alternatives, this valve offers a significantly extended operational lifespan.
Target Sectors: Particularly suitable for coastal water plants, food and beverage facilities, shipbuilding projects, and desalination plants.
Material Properties: The high-quality EPDM valve seat exhibits excellent elasticity, recovery resilience, and resistance to aging and weathering.
Sealing Performance: Ensures stable, low-leakage sealing even under frequent cycling (open/close operations). It meets tight shutoff standards, minimizing water loss and preventing system contamination.
Media Compatibility: Well-suited for water, air, sewage, wastewater, and mild chemical media within the appropriate temperature range.
Polished Disc Surface: The stainless steel butterfly plate is precision-polished to reduce fluid resistance, improving overall flow efficiency.
Precision-Machined Stem: The valve stem is manufactured to tight tolerances, ensuring smooth rotation and low torque requirements. This reduces actuator sizing needs and lowers operational energy costs.
Connection Types: Available in Wafer, Lug, and Flanged end configurations.
Standards Compliance: Can be produced according to GB, DIN, ANSI, JIS, and other international standards, ensuring compatibility with piping systems across different regions and project specifications.
Manual Operation: Equipped with handwheels or worm gear operators for local control.
Automated Control: Can be fitted with pneumatic or electric actuators, enabling integration into distributed control systems (DCS) or SCADA networks for remote monitoring and automation.
Standard Stock Sizes: DN40 to DN300 are readily available from inventory.
Large-Diameter Options: Sizes DN350 up to DN1600 can be quickly customized to meet bulk project orders or urgent delivery schedules.
This valve is widely deployed across multiple sectors:
| Application Area | Specific Use Cases |
|---|---|
| Municipal Water & Wastewater | Water treatment plants, sewage treatment facilities, pumping stations |
| Marine & Coastal Engineering | Shipboard systems, docks, offshore platforms, seawater intake lines |
| HVAC & Building Services | Chilled water systems, heating and cooling water regulation |
| Food & Beverage Industry | Safe handling of potable water, milk, juices, and other food-grade liquids |
| Agriculture & Irrigation | Farm irrigation networks, landscape watering systems |
| Industrial Utilities | Cooling water loops, light chemical media transfer, process water lines |
The all-stainless structure provides superior resistance to corrosion and wear, translating into fewer replacements and lower lifecycle costs. This is especially critical in aggressive environments such as coastal regions and chemical-laden water streams.
The EPDM seat ensures a dependable seal over time, preventing water waste, reducing maintenance interventions, and enhancing operational safety.
The valve's lightweight and compact design, combined with the simple quarter-turn operation, allow for quick installation and effortless on-site servicing. Maintenance teams can reduce downtime and streamline routine checks.
By offering high-grade materials and proven performance at a competitive price point, this valve represents a sound investment that delivers strong returns through extended service intervals and reduced energy consumption due to low torque operation.
Zhongguan operates two manufacturing facilities: one in Tianjin (focused on cast iron products) and one in Wenzhou, Zhejiang (specializing in cast steel and stainless steel valves). This north-south supply chain integration ensures stable production capacity and material sourcing flexibility.
Every valve undergoes rigorous shell and seat pressure tests prior to shipment. All test records are archived, ensuring full traceability and compliance with international standards.
Our in-house engineering team provides expert guidance on valve sizing, material selection, and actuator matching based on your specific operating conditions (temperature, pressure, media type). We help you avoid costly misapplications from the outset.
Beyond butterfly valves, Zhongguan has consolidated a broad network covering both northern water-system valves and southern industrial valves. We can also supply ball valves, gate valves, check valves, strainers, and filters—enabling one-stop procurement and reduced purchasing costs for our customers.
Through strict control over material sourcing, production efficiency, and manufacturing processes, we continuously deliver valves that offer outstanding quality at competitive prices.
Our products have been successfully deployed in municipal water plants across Singapore, large-scale engineering projects in Malaysia, and construction developments in Vietnam. Our clientele includes engineering contractors, distributors, and water utility companies, all attesting to the stable performance of our valves.
We stand behind our products with a comprehensive one-year quality guarantee. In the event of any manufacturing defects, we provide free replacement. Our sales and technical teams also offer prompt remote troubleshooting and on-site support for installation or system integration issues.
To meet specific project or brand requirements, we offer:
Valve body color and coating options
Custom actuator matching and torque configuration
OEM/ODM services (including packaging, nameplate branding, and logo design)
