Water seal check valve
The Water Seal Check Valve is a specially designed non-return valve that uses a water sealing structure to prevent reverse flow, gas leakage, and pressure backflow in pipeline systems. It provides reliable isolation performance by utilizing the water seal principle, ensuring safe and stable operation in various industrial and municipal applications.
With a simple structure, excellent sealing capability, and low maintenance requirements, the Water Seal Check Valve is suitable for systems requiring high reliability and effective backflow prevention. The valve is especially effective in applications involving gas pipelines, drainage systems, wastewater treatment, industrial exhaust systems, and pressure protection equipment.
The valve is manufactured using high-quality materials and advanced processing technology, offering excellent corrosion resistance, wear resistance, and long service life. Customized solutions are available according to different pressure levels, media characteristics, temperature requirements, and installation conditions.
Water seal check valve
We provide professional OEM and ODM customization services to meet different industrial requirements.
Available materials include:
Our Water Seal Check Valves are manufactured under strict quality control systems and supplied with complete valve industry certification documents, including:
We provide reliable valve solutions with professional manufacturing capability and global OEM service support.
Parameter Specifications
| Parameter | Specification |
|---|---|
| Product Name | Water Seal Check Valve |
| Valve Type | Water Seal Non-Return Valve / Check Valve |
| Operating Principle | Water seal structure prevents reverse flow and gas leakage |
| Main Function | Backflow prevention, pressure isolation, pipeline protection |
| Nominal Size | DN50–DN2000 (Customized available) |
| Pressure Rating | PN0.1–PN2.5 MPa (Customized available) |
| Working Temperature | -20℃ to +200℃ (Depending on material selection) |
| Applicable Medium | Water, gas, wastewater, industrial fluids, exhaust gas |
| Valve Body Material | Cast Iron / Ductile Iron / Carbon Steel / Stainless Steel |
| Disc Material | Stainless Steel / Carbon Steel / Alloy Material |
| Sealing Method | Water Seal / Soft Seal / Metal Seal |
| Connection Type | Flanged / Welded / Customized |
| Installation Type | Horizontal / Vertical Installation |
| Flow Direction | One-way Flow |
| Closing Method | Automatic closing by pressure difference |
| Leakage Prevention | Water sealing structure for enhanced isolation |
| Design Standard | API / DIN / ANSI / GB Standards |
| Flange Standard | ANSI B16.5 / EN1092 / JIS / GB Standards |
| Leakage Standard | API 598 / ISO 5208 |
| Corrosion Resistance | Suitable for humid and corrosive environments |
| Maintenance Requirement | Low maintenance structure |
| Service Life | Long service life with reliable performance |
| Inspection | Pressure test, sealing test, dimensional inspection |
| OEM Service | Size, material, structure, coating, logo, packaging customization |
Industry Applications
The Water Seal Check Valve is widely used in industries requiring reliable backflow prevention, gas isolation, and pipeline safety protection.
Material customization plan
Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.
Structural optimization design
For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.
Interface standard adaptation
Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.
RELATED PRODUCTS
