Needle Valves
What are Needle Valves?
Needle Valves are precision-engineered valves used to regulate the flow of liquids and gases with high accuracy. They feature a slender, needle-shaped plunger that fits into a conical seat, allowing for fine control over flow rate in low-pressure or high-precision systems.
Asiad Steel Industries is a leading manufacturer and exporter of industrial-grade Needle Valves, widely used in instrumentation, hydraulic, and pneumatic systems across multiple industries.
Key Features
- Fine Flow Control – Ideal for precise regulation of flow in instrumentation systems.
- Leak-Tight Design – Metal-to-metal seating ensures minimal leakage.
- Pressure and Temperature Resistant – Suitable for high-pressure and high-temperature operations.
- Threaded and Panel Mount Options – Flexible installation in compact environments.
- Wide Material Range – Available in stainless steel, brass, and alloy variants.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Size Range | 1/8" to 1" (DN6 – DN25) |
| Pressure Rating | Up to 6000 PSI |
| End Connections | NPT, BSPT, Compression, Weld |
| Body Materials | SS 304, SS 316, Brass, Alloy Steel |
| Stem Types | Non-Rotating / Rising Stem |
| Standards | ASTM A182, ASME B1.20.1, DIN 2353 |
| Property | Value |
|---|---|
| Tensile Strength | 515 – 750 MPa |
| Yield Strength | 205 – 450 MPa |
| Hardness | 120 – 240 HB |
| Elongation | 15% – 30% |
| Operating Temp | -50°C to +450°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 – 0.20 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Manganese (Mn) | 0.50 – 1.50 |
| Silicon (Si) | 0.30 – 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A182 F304 / F316 |
| EN | 1.4301 / 1.4401 |
| JIS | SUS304 / SUS316 |
| DIN | X5CrNi18-10 / X2CrNiMo17-12-2 |
| Size (Inch) | Material | Weight per 100 pcs (kg) |
|---|---|---|
| 1/8” | SS 316 | 10.5 |
| 1/4” | SS 316 | 13.0 |
| 3/8” | SS 316 | 18.2 |
| 1/2” | SS 316 | 22.0 |
| 3/4” | SS 316 | 30.5 |
Applications of Industrial Needle Valves
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What makes needle valves different from ball valves?
Needle valves allow fine flow control, while ball valves are used for quick shut-off and open flow.
Can needle valves handle high-pressure applications?
Yes, especially those designed for up to 6000 PSI. Material and seat selection play key roles.
Are needle valves available with compression ends?
Absolutely. Compression-type needle valves are ideal for easy tubing connections.
Do you offer needle valves with lockable handles?
Yes, lockable and panel-mount variants are available for secure installation.
