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Specialized Flow Control for Sulfuric Acid, Nitric Acid & Chloride-Rich Systems
At Perfect Engineers, we manufacture high-performance Alloy 20 needle valves designed for severe chemical service, especially where sulfuric acid, nitric acid, phosphoric acid, and chlorides are involved. Made from Alloy 20 (UNS N08020)—a nickel, iron, and chromium alloy with copper and molybdenum—these valves deliver superior corrosion resistance, leak-free operation, and extended service life.
Engineered to meet the demands of chemical, petrochemical, and pharmaceutical processing systems, our valves provide precision flow control under the harshest conditions.
An Alloy 20 needle valve is a manually operated valve made from Nickel-Iron-Chromium alloy known for resisting acid attack, especially H₂SO₄ and HNO₃. It is ideal for applications where SS 316 or even Monel is insufficient.
It bridges the performance gap between stainless steel and more expensive high-nickel alloys like Hastelloy and Inconel.
| Parameter | Specification |
|---|---|
| Body Material | Alloy 20 (UNS N08020 / ASTM B473) |
| Seat Material | PTFE, PEEK, Graphite, or Metal-to-Metal |
| Pressure Rating | Up to 10,000 PSI |
| Temperature Range | -20°C to +425°C |
| Valve Design Options | Straight, Angle, Block & Bleed, Bar Stock |
| End Connections | BSP / NPT Threaded, Flanged, Compression, SW/BW |
| Documentation | EN 10204 3.1 MTC, Hydro Test, IBR, CE |
| Feature | Alloy 20 | SS 316 | Hastelloy C276 |
|---|---|---|---|
| Sulfuric Acid Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐ |
| Chloride Pitting Resistance | ⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐ |
| Cost | 💰💰 | 💰 | 💰💰💰 |
| Applications | Chemical & Pharma | General Process | Acidic, oxidizing |
| PREN (Pitting Resistance) | ~38 | ~25 | 42–45 |
+91-9004860491
www.perfectqrc.com
Yes. We supply Alloy 20 compression-end needle valves for instrumentation and tubing connections.
Absolutely. We work with TUV, Lloyds, BV, SGS, and others as per client requirement.
Typically 2–4 weeks, depending on valve size, type, and quantity.
No. Alloy 20 is inherently resistant to most corrosive fluids and doesn’t require external coatings.
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