Advanced Flow Control Solutions
Concealed stem soft-sealed gate valve for reliable on-off control in water supply, sewage, municipal and industrial pipeline systems.
Product Highlights
Concealed stem structure saves installation space and protects stem from damage and corrosion.
Soft-sealed structure provides zero leakage and good sealing performance.
Full bore design ensures low flow resistance and smooth medium flow.
Wide material compatibility for water, sewage and general non-corrosive media.
Easy installation, maintenance and long service life.
Suitable for long-term use in municipal and industrial pipelines.
Key Applications
Typical Applications:
Municipal water supply and drainage pipelines
Sewage treatment plants and pumping stations
Urban pipe network reconstruction projects
Residential and commercial building water supply systems
Industrial cooling water and circulating water systems
Chemical and light industrial general pipelines
Product Parameters Table
|
Parameter |
Specification |
|
Product Name |
Concealed Stem Soft-Sealed Gate Valve |
|
Body Material |
Ductile Iron 500-7 |
|
Stem Material |
Stainless Steel 304 |
|
Seal Material |
EPDM, NBR, Viton |
|
Size Range |
DN50 - DN600 |
|
Pressure Rating |
PN10-PN16 |
|
Temperature Range |
-20°C to 120°C |
|
Operation Type |
Handwheel, Gear |
|
Connection Type |
Flanged, Grooved |
Manufacturing Process
We select certified raw materials. Electric furnace melting comes first. Precision casting creates components. CNC machining ensures accuracy. Automated assembly follows. Robotic testing completes production.
Key Technical Specifications
Valve Type Concealed Stem Soft-sealed Gate Valve
Connection Flanged
Nominal Size DN50 – DN1200
Pressure Rating PN10 / PN16 / ANSI 150
Operation Manual, Electric, Pneumatic
Installation Steps
Prepare pipeline properly. Check valve direction. Clean connection surfaces. Position valve correctly. Tighten bolts evenly. Test operation completely. Verify sealing performance.
Accessories & Optional Configurations
Hand wheel and manual operation device
Electric actuator for automatic control
Pneumatic actuator for quick opening and closing
Limit switch and position indicator
Gasket and fastener matching the valve
Anti-condensation and protective coating
Performance Testing & Quality Assurance
Shell strength test according to standard requirements
Sealing performance test to ensure zero leakage
Low pressure sealing test and high pressure sealing test
Appearance and dimension inspection before delivery
Factory inspection report provided for each batch
Third-party inspection available upon request
All valves are strictly tested before leaving the factory to ensure stable performance and safe operation..
After-Sales Service
We provide technical support. We offer installation guidance. We supply spare parts. We respond quickly. We solve problems promptly.
Our Advantages
As a leading manufacturer of ductile iron pipes, we combine advanced production technology with strict quality control to deliver pipes that meet international standards such as ISO2531 and EN545, ensuring exceptional strength, corrosion resistance, and long service life for your water and sewage projects. With years of export experience, we offer customized solutions, competitive pricing, and reliable delivery schedules to support your specific requirements. Our dedicated customer service team provides comprehensive after-sales support, making us a trusted partner for long-term cooperation. Contact us today to discuss how we can contribute to the success of your next project.
