| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Structure & Working Principle
Innovative Design Features:
Lift-type Design: The disc glides effortlessly along the vertical centerline within the valve body, making it perfectly suited for seamless vertical installations.
Spring-assisted Sealing: Meticulously engineered for rapid and precise reaction to pressure variations, ensuring consistent reliability across all scenarios. Some models boast reinforced springs, enhancing performance in horizontal pipelines.
Operation:
Closed by Default: The valve is securely closed when no flow is present, protecting your system with utmost effectiveness.
Efficient Forward Flow: The inlet pressure smoothly counters the spring force, gently lifting the disc to allow an unhindered flow.
Prevention of Reverse Flow: A robust combination of spring action and backpressure decisively urges the disc to close, offering a formidable safeguard against any backflow.
Key Specifications
Pressure Rating: PN16~PN40 (150LB-300LB), crafted to meet various operational demands with precision.
Temperature Range:
- Carbon Steel (WCB): Operates efficiently up to ≤425°C, ideal for water, oil, and steam applications.
- Stainless Steel (304/316): Delivers optimal performance up to ≤200°C, perfect for handling corrosive media.
Materials & Standards
- Body Materials:
- Robust Carbon Steel (WCB) and enduring Stainless Steel (304/316)
Dimensions & Connection
- Nominal Diameter (DN): Spanning from DN15 to DN350, accommodating a variety of applications.
- Connection Type: Flange (RF/FF), ensuring a secure and seamless fit.
Applications
- Media: Exceptionally efficient with water, steam, oils, weak acids like nitric acid, and strong corrosives such as acetic acid.
- Industries:
- Oil & Gas: Ensures meticulous unidirectional flow control.
- Pharmaceutical: Guarantees protection against any backflow contamination.
- Power Plants: Vital for safeguarding boiler feedwater systems.
- Wastewater Treatment: Ideal for enhancing efficiency in pump discharge lines.
Installation & Maintenance
- Installation: Vertical installation is crucial for gravity-assisted sealing. Maintain a pristine pipeline for top-tier performance.
- Maintenance:
- Conduct regular inspections of springs and sealing surfaces to ensure unparalleled excellence.
- Diligently monitor thermal fatigue in high-temperature systems to maintain uncompromised integrity.





| Working pressure | PN16~PN40 OR 150LB~300LB |
| Suitable medium | Water, gas, air and some corrosive liquid |
| Investment | Casting body and cap |
| Delivery time | Usual 15 days |
| Shipping port | NingBo,YiWu |





