The DIN Metal Seat Gate Valve NRS is a high-performance industrial valve engineered for precision flow control and reliable sealing in demanding piping systems. Designed and manufactured in strict accordance with DIN 3352 standards, this valve features a Non-Rising Stem (NRS) design, making it ideal for installations where space is limited or where stem movement must be restricted for safety and operational efficiency.
Constructed from premium Gray Cast Iron GG25 with reinforced Brass seat rings and a Ductile Iron GGG50 wedge, this valve ensures exceptional durability and corrosion resistance. With a size range extending up to 48 inches and compliance with EN 1092-2/DIN 2533 flange dimensions, it provides a versatile and robust solution for water management, industrial processing, and general equipment manufacturing sectors.
Detailed Parameters
| Design Standard | DIN 3352 | Flange Standard | EN 1092-2 / DIN 2533 |
|---|---|---|---|
| Face-to-Face | DIN 3202 F4/F5 | Test Standard | API 598 / EN12266 |
| Body Material | Gray Cast Iron GG25 | Wedge Material | Ductile Iron GGG50 |
| Seat Ring Material | Brass | Stem Material | Stainless Steel 2Cr13 |
| Max Size | Up to 48" | Gasket/O-Ring | NBR (Nitrile Rubber) |
Key Advantages
Robust Construction
Built with GG25 Gray Cast Iron and GGG50 Ductile Iron for maximum structural integrity and longevity.
Low Maintenance
The Non-Rising Stem design prevents external contamination and reduces the need for stem lubrication.
Precision Sealing
Brass seat rings provide a tight metal-to-metal seal, ensuring zero leakage under operational pressure.
Standardized Fit
Fully compliant with DIN and EN standards for seamless integration into global piping infrastructures.
Corrosion Resistance
Equipped with 2Cr13 Stainless Steel stems and NBR seals to withstand harsh industrial environments.
Versatile Application
Suitable for a wide range of fluids in utility, industrial, and specialized equipment manufacturing.
Product Gallery
Management Platforms
Inventory Tracking
Real-time monitoring of valve stock levels and SKU management for rapid fulfillment.
Quality Control
Rigorous API 598 and EN12266 inspection protocols for every manufactured unit.
Order Notification
Automated updates on production stages and shipping milestones for global clients.
Technical Support
Dedicated engineering support for DIN standard compatibility and installation guidance.
Logistics Optimization
Streamlined shipping for large-scale valve orders up to 48" dimensions.
Custom Configuration
Ability to adjust material specifications based on specific medium requirements.
Investment Return Comparison
| Feature | Standard Gate Valve | DIN Metal Seat NRS Valve |
|---|---|---|
| Seal Life | Medium | Extended (Brass Seat) |
| Space Req. | High (Rising Stem) | Low (Non-Rising Stem) |
| Durability | Standard Cast Iron | Reinforced GG25/GGG50 |
| Maintenance | Frequent Lubrication | Minimal / Low-frequency |
| Compliance | General | DIN/EN/API Certified |
Frequently Asked Questions
The NRS design ensures the stem does not move upward when the valve is opened, which is critical for underground installations or tight spaces where there is no room for a rising stem.
They are manufactured according to DIN 3352 for design, EN 1092-2/DIN 2533 for flanges, and DIN 3202 F4/F5 for face-to-face dimensions.
Each valve undergoes rigorous testing and inspection based on API 598 and EN12266 standards to ensure maximum sealing integrity.
We use Stainless Steel 2Cr13 for the stem and high-quality Brass for the seat rings to provide superior resistance against corrosion and wear.
Our production capabilities for this specific model extend up to a size of 48 inches, catering to large-scale industrial piping needs.
Yes, the combination of GG25 body and GGG50 ductile iron wedge makes these valves highly suitable for various pressure ratings common in water and industrial utilities.
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