2PC 904L Ball Valve is a high-performance, quarter-turn isolation valve designed for the most aggressive corrosive environments. By utilizing 904L Super Austenitic Stainless Steel and a robust two-piece body construction, this valve provides exceptional resistance to strong reducing acids—particularly sulfuric acid—while ensuring a bubble-tight seal and long service life.
Description
904L (00Cr20Ni25Mo4.5Cu) is a high-alloy stainless steel engineered for severe chemical service where standard 316L would fail:
- Stress Corrosion Cracking (SCC) Defense: The high nickel concentration (approx. 25%) provides a robust barrier against SCC, maintaining structural integrity in volatile industrial settings.
- Superior Sulfuric Acid Protection: The specific addition of Copper grants this valve outstanding resistance to sulfuric acid across a wide range of concentrations and temperatures.
- Pitting & Crevice Immunity: High molybdenum and nickel content ensure the valve remains stable and leak-proof in high-chloride environments and brackish water.
Features
- Two-Piece (2PC) Body Design: The two-body construction strikes the perfect balance between structural rigidity and ease of maintenance. It allows for straightforward disassembly and seal replacement compared to one-piece models.
- Quarter-Turn Operation: Fast, 90-degree actuation provides immediate shut-off and clear visual indication of the valve position (open/closed).
- Full Bore Flow: Designed with a full-bore internal diameter, this valve offers minimal flow resistance and negligible pressure drop, ensuring maximum system efficiency.
- Precision-Engineered Ball: The spherical ball is precision-ground and polished to ensure smooth operation and a perfect seal against PTFE or reinforced seats.
- Blow-out Proof Stem: Engineered for safety, the stem is designed to remain secure within the valve body even under extreme pressure spikes.
Specifications
| Feature | Specification |
| Structure Type | 2-Piece (2PC) Body |
| Bore Type | Full Bore |
| Body Material | 904L Super Austenitic Steel (00Cr20Ni25Mo4.5Cu) |
| Seat Material | PTFE / RPTFE (Reinforced PTFE) |
| Pressure Rating | 1000 WOG / PN16 / PN40 / PN64 |
| Connection Type | Threaded (NPT/BSP) or Flanged |
| Testing Standard | GB/T 13927 / API 598 |
Applications
- Chemical Manufacturing: Production and transport of concentrated sulfuric, phosphoric, and acetic acids.
- Petrochemical Refining: High-chloride cooling water systems and aggressive catalyst management.
- Pharmaceutical & Food: High-purity acid handling where material integrity is critical to prevent batch contamination.
- Pollution Control: Flue gas desulfurization (FGD) systems where high-acid slurries are common.
Related Products
2PC Ball Valve 904L
3PC Ball Valve HC276 (Hastelloy)