Manual dark bar type knife gate valve
The Manual Rising Stem Knife Gate Valve is designed for reliable isolation of abrasive, viscous, and solid-laden media. Its rising stem structure provides clear visual indication of valve position, while the sharp-edged gate effectively cuts through suspended particles. The valve offers excellent sealing performance, easy maintenance, and long service life in demanding industrial applications.
Manual dark bar type knife gate valve
The Manual Rising Stem Knife Gate Valve features a visible rising stem mechanism that allows operators to easily identify valve position during operation. Designed with a precision-machined knife-edge gate, the valve efficiently handles slurry, pulp, wastewater, powders, and fibrous media without clogging.
Its robust construction ensures excellent resistance to abrasion, corrosion, and wear. The manual handwheel operation provides simple and reliable control without requiring external power sources. Available in various materials and configurations, the valve can be customized to meet specific industrial requirements.
As a professional industrial valve manufacturer, we provide comprehensive OEM and ODM services for global customers.
Our Manual Rising Stem Knife Gate Valves are manufactured according to international quality standards.
Manual dark bar type knife gate valve
| Parameter | Specification |
|---|---|
| Product Name | Manual Rising Stem Knife Gate Valve |
| Nominal Size | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN6 – PN16 |
| ANSI Class | Class 125 – Class 150 |
| Body Material | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
| Gate Material | SS304, SS316, Wear-Resistant Alloy Steel |
| Seat Material | EPDM, NBR, PTFE, Metal Seat |
| Connection Type | Wafer, Lug, Flanged |
| Operation | Manual Handwheel |
| Stem Type | Rising Stem |
| Temperature Range | -20°C to +200°C |
| Sealing Type | Unidirectional / Bidirectional |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | MSS SP-81 |
| Applicable Media | Slurry, Wastewater, Pulp, Powder, Bulk Solids |
Manual dark bar type knife gate valve
Used for slurry transportation, tailings handling, and mineral processing systems.
Suitable for sludge treatment, wastewater pipelines, and sewage systems.
Controls pulp stock, paper slurry, and process water pipelines.
Handles corrosive slurries, powders, and chemical process media.
Applied in cement powder conveying, silo discharge, and bulk solids transportation.
Suitable for non-sticky powders, granular materials, and industrial process systems.
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%.
