Manual top discharge valve
The Manual Top Discharge Valve is designed for safe and efficient top-side release from tanks, reactors, and vessels. Operated via handwheel, it ensures precise flow control, minimal residue, and tight sealing. Constructed from stainless steel, carbon steel, or alloy materials, it delivers long service life in harsh industrial environments.
Manual top discharge valve
The Manual Top Discharge Valve is installed at the top of storage tanks, reactors, or vessels to allow controlled discharge, sampling, or venting of process media. Its design reduces dead space, prevents material accumulation, and ensures smooth, residue-free operation.
Manufactured from durable materials including stainless steel, carbon steel, and special alloys, it can handle liquids, slurries, powders, and chemical media. Manual operation provides reliable control without external power requirements, suitable for batch or continuous processing.
Manual Top Discharge Valves are manufactured and tested according to international standards:
Manual top discharge valve
| Parameter | Specification |
|---|---|
| Product Name | Manual Top Discharge Valve |
| Nominal Size | DN25 – DN400 (1" – 16") |
| Pressure Rating | PN10 – PN40 |
| ANSI Class | Class 150 – Class 300 |
| Body Material | SS304, SS316, SS316L, Carbon Steel, Alloy Steel |
| Seat Material | PTFE, RPTFE, PPL, Metal Seat, Graphite |
| Connection Type | Flanged, Threaded, Butt Weld |
| Operation | Manual Handwheel |
| Temperature Range | -29°C to +350°C |
| Leakage Standard | API 598 / ISO 5208 |
| Design Standard | DIN, ANSI, ASME, GB |
| Installation Position | Tank Top / Reactor Top |
| Applicable Media | Liquids, Slurries, Powders, Chemicals |
Manual top discharge valve
Controlled discharge, sampling, and process media transfer in reactors and tanks.
Sanitary batch production, liquid and slurry handling, and top-side discharge.
Ingredient addition, syrup transfer, and sanitary top discharge applications.
Top-side discharge, venting, and batch process operations.
High-purity media handling and sampling from reactors or storage tanks.
Safe and complete top discharge with minimal residue accumulation.
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%.
