Stainless Steel Needle Valves
What are Stainless Steel Needle Valves?
Stainless Steel Needle Valves are precision flow control valves crafted from corrosion-resistant stainless steel, designed to regulate flow in aggressive or high-purity environments. These valves are preferred in marine, chemical, food-grade, and high-temperature applications where hygiene and durability are paramount.
Asiad Steel Industries specializes in manufacturing Stainless Steel Needle Valves with leak-proof sealing and long operational life across critical process systems.
Key Features
- Corrosion-Resistant – Suitable for marine, chemical, and cleanroom environments.
- Smooth Throttling – Accurate control over flow in small pipelines.
- Hygienic Build – Non-reactive SS surface prevents contamination.
- High Pressure Ratings – Withstands up to 6000 PSI in industrial lines.
- International Standards – Built to ASME, ASTM, and DIN codes.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Size Range | 1/8” to 1” (DN6 – DN25) |
| Material Grades | SS 304, SS 316, SS 316L |
| Pressure Rating | Up to 6000 PSI |
| Seat Type | Metal or Soft Seat |
| End Connections | NPT, BSP, Weld, Compression |
| Operation | Manual (Rising Stem) |
| Property | Value |
|---|---|
| Tensile Strength | 520 – 750 MPa |
| Yield Strength | 210 – 450 MPa |
| Elongation | 20% – 35% |
| Hardness | 120 – 240 HB |
| Temperature Range | -50°C to +500°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.03 – 0.08 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Molybdenum (Mo) | 2.0 – 3.0 (in 316/316L) |
| Manganese (Mn) | 0.50 – 1.50 |
| Silicon (Si) | 0.30 – 1.00 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A182 F316 / F316L |
| EN | 1.4401 / 1.4404 |
| JIS | SUS316 / SUS316L |
| DIN | X2CrNiMo17-12-2 |
| Size (Inch) | Grade | Weight per 100 pcs (kg) |
|---|---|---|
| 1/4” | SS 304 | 13.2 |
| 3/8” | SS 316 | 18.5 |
| 1/2” | SS 316L | 21.8 |
| 3/4” | SS 316 | 29.7 |
Applications of Stainless Steel Needle Valves
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
Are stainless steel needle valves safe for corrosive gases and acids?
Yes, SS 316/316L variants offer superior resistance to aggressive media including acids and saline fluids.
What is the difference between SS 304 and SS 316 needle valves?
SS 316 contains molybdenum, offering enhanced corrosion resistance, especially in chloride environments.
Are SS needle valves available with locking handles?
Yes, we offer variants with lockable or tamper-proof handles for safety-critical applications.
Can I use these valves for food-grade pipelines?
Absolutely. SS needle valves with hygienic seals meet food and pharma-grade specifications.
