DIN Non Lubricated Plug Valve 904L DN100 PN25 Flange End
DIN Non Lubricated Plug Valve 904L DN100 PN25 Flange End
Engineered for exceptional performance in corrosive environments, our DIN Non-Lubricated Plug Valve 904L DN100 PN25 Flange End combines superior material construction with precision engineering. This valve delivers outstanding reliability for critical fluid control applications in chemical processing, offshore operations, and water treatment facilities. With its 904L super-austenitic stainless-steel construction and non-lubricated design, this valve offers exceptional resistance to aggressive media while minimizing maintenance requirements.
Technical Specifications
Our DIN Non Lubricated Plug Valve is manufactured to the highest industry standards, ensuring reliable performance in demanding applications. The 904L super-austenitic stainless steel construction provides exceptional corrosion resistance, particularly in environments with high chloride content, acids, and other aggressive chemicals.
| Specification | Details |
| Product Name | DIN Non-Lubricated Plug Valve |
| Body Material | 904L Super-Austenitic Stainless Steel (1.4539) |
| Size | DN100 (4″) |
| Pressure Rating | PN25 (Pressure Nominal 25 bar) |
| Connection | Flange End (EN 1092-1) |
| Design Standard | DIN 3202-F1, API 599 |
| Seat Type | PTFE Sleeve |
| Temperature Range | -29°C to +180°C |
| Operation | Manual (Lever/Gear Box), Optional Actuated |
| Flow Pattern | Full Port |
| Test Standard | DIN 3230, API 598 |
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904L Super-Austenitic Stainless Steel Benefits
The 904L super-austenitic stainless steel used in our DIN Non Lubricated Plug Valve offers exceptional performance advantages over standard stainless steel materials. This premium alloy is specifically engineered for the most demanding corrosive environments.
Superior Corrosion Resistance
The 904L alloy contains high levels of chromium (19-23%), nickel (23-28%), molybdenum (4-5%), and copper (1-2%), creating exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. This makes it ideal for applications involving chlorides, sulfuric acid, phosphoric acid, and other aggressive chemicals that would rapidly deteriorate standard stainless steels.
- Enhanced resistance to pitting and crevice corrosion
- Excellent performance in chloride-rich environments
- Superior resistance to sulfuric and phosphoric acids
- High resistance to stress corrosion cracking
- Extended service life in harsh chemical environments
- Reduced maintenance requirements and downtime
- Excellent mechanical properties at elevated temperatures
- Good weldability and fabrication characteristics
Non-Lubricated Plug Valve Design
Our DIN Non Lubricated Plug Valve features an advanced sleeve-type design that eliminates the need for traditional lubrication systems while providing superior sealing performance and operational reliability.
Design Principles
Unlike conventional lubricated plug valves that require periodic injection of sealant, our non-lubricated design utilizes a PTFE sleeve that completely encapsulates the plug. This creates a self-lubricating, low-friction interface between the plug and body, ensuring smooth operation and reliable sealing without maintenance-intensive lubrication systems.
Operational Advantages
The non-lubricated design offers significant advantages over traditional lubricated plug valves, particularly in applications where product contamination must be avoided or where maintenance access is limited.
- Eliminates need for periodic lubrication maintenance
- Prevents product contamination from lubricants
- Provides consistent torque requirements throughout service life
- Ensures reliable operation in extreme temperature conditions
- Delivers bubble-tight shutoff capability
- Offers low operating torque for easy manual operation
- Maintains sealing integrity even after thousands of cycles
Application Scenarios
The DIN Non Lubricated Plug Valve 904L DN100 PN25 Flange End is engineered for the most demanding fluid control applications across multiple industries. Its combination of corrosion-resistant 904L material and non-lubricated design makes it particularly valuable in the following scenarios:
Chemical Processing
- Sulfuric and phosphoric acid transfer lines
- Chlor-alkali production facilities
- Specialty chemical manufacturing
- Acid regeneration systems
- Chemical mixing and blending operations
Offshore & Marine
- Seawater cooling systems
- Ballast water treatment
- Offshore platform fluid handling
- Marine desalination plants
- Shipboard wastewater systems
Pulp & Paper
- Bleaching operations
- Chemical recovery processes
- Black liquor handling
- Chlorine dioxide systems
- Effluent treatment facilities
Water Treatment
- Desalination plants
- Chemical dosing systems
- Reverse osmosis facilities
- Wastewater treatment
- Brine handling systems
Mining & Mineral Processing
- Leaching circuits
- Acid mine drainage control
- Slurry transport systems
- Mineral processing plants
- Tailings management
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Flange End Connection Details
The DN100 PN25 flange end connections on our DIN Non Lubricated Plug Valve are manufactured according to EN 1092-1 standards, ensuring compatibility with standard piping systems and secure, leak-tight connections.
Flange Specifications
- Standard: EN 1092-1
- Size: DN100 (4″)
- Pressure Rating: PN25
- Type: Raised Face (RF)
- Material: 904L Stainless Steel (1.4539)
- Bolt Circle Diameter: 180mm
- Number of Bolt Holes: 8
- Bolt Hole Diameter: 18mm
Installation Benefits
The standardized flange connections offer several advantages for installation and maintenance:
- Compatible with standard DN100 PN25 pipe flanges
- Allows for easy removal and replacement during maintenance
- Provides secure, leak-tight connection with proper gasket
- Enables installation in any orientation
- Accommodates thermal expansion and contraction
- Facilitates proper alignment with piping system
- Supports dead-end service capability
Installation Note: For optimal sealing performance, we recommend using spiral-wound gaskets with 904L/PTFE filler when installing this valve. Bolts should be tightened in a cross-pattern sequence to ensure even compression of the gasket.
Key Advantages & Benefits
Our DIN Non Lubricated Plug Valve 904L DN100 PN25 Flange End offers numerous advantages that make it the preferred choice for demanding fluid control applications in corrosive environments.
Advantages
- Superior Corrosion Resistance: 904L material provides exceptional resistance to chlorides, acids, and other aggressive chemicals
- Maintenance-Free Operation: Non-lubricated design eliminates need for periodic lubrication
- Zero Leakage: PTFE sleeve ensures bubble-tight shutoff even after thousands of cycles
- Full Port Design: Minimizes pressure drop and allows pigging operations
- Quarter-Turn Operation: Quick and easy valve actuation
- Bi-Directional Flow: Simplifies installation with flow in either direction
- Self-Cleaning Action: Plug rotation provides wiping action that prevents buildup
- Extended Service Life: Premium materials ensure long-term reliability in harsh environments
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Our DIN Non Lubricated Plug Valve 904L DN100 PN25 Flange End is the ideal solution for demanding fluid control applications in corrosive environments. Contact our technical sales team today to discuss your specific requirements or to request a detailed datasheet.
