Needle Valve Manufacturer
At Steel Icon Stainless Pvt. Ltd., we are a precision manufacturer of industrial Needle Valves, designed for accurate and controlled flow regulation in low to high-pressure fluid systems. Needle valves feature a narrow, tapered point at the end of a threaded stem, allowing fine modulation of flow rates with maximum sealing integrity.
These valves are ideal for applications requiring precise throttling and shut-off of gases and liquids in instrumentation lines, fuel systems, test benches, pressure gauges, calibration equipment, and hydraulic applications. Our needle valves are engineered to meet ASME, DIN, ISO, and API standards, and are manufactured in a variety of materials and pressure classes.
Why Choose Our Needle Valves?
- Precise flow control with threaded needle-style stem
- High-pressure and high-temperature ratings for critical systems
- Leak-tight shut-off in gas and liquid applications
- Available in inline, angle, block, and bleed valve configurations
- Offered in stainless steel, carbon steel, Monel, Hastelloy, and exotic alloys
- Ideal for instrumentation, oil & gas, chemical, and lab-grade systems
| Products |
|---|
|
Stainless Steel Bar |
|
Fasteners |
|
Forged Products |
|
Flanges |
|
Forged Fittings |
|
Stainless Steel Billets |
|
Round Corner Square Billets |
|
Stainless Steel Pipes |
|
Pipe Fittings |
|
Valve |
Technical Specifications
| Parameter | Details |
|---|---|
|
Size Range |
¼” to 2”
|
|
Pressure Ratings |
Up to 10,000 PSI (690 bar) |
|
Temperature Range |
–54°C to +600°C (depends on trim) |
|
Body Materials |
SS 304, SS 316, Monel, Hastelloy, Alloy 20, Carbon Steel |
|
Connection Types |
NPT, BSPT, BSPP, Socket Weld, Butt Weld, Compression |
|
Stem Types |
Soft Seat (PTFE), Metal-to-Metal, Regulating, Non-Rotating |
|
End Styles |
Inline, Angle, Block & Bleed, Panel Mount |
|
Design Standards |
ASME B16.34, BS EN ISO 9001, MSS-SP-99, DIN 2353 |
Chemical Composition (Typical Body Materials)
| Material | Cr (%) | Ni (%) | Mo (%) | C (%) | Other Elements |
|---|---|---|---|---|---|
|
SS 304
|
18–20 |
8–11 |
– |
≤ 0.08 |
Mn, Si, S, P |
|
SS 316 |
16–18 |
10–14 |
2–3 |
≤ 0.08 |
Mn, Si, S, P |
|
Monel 400
|
≤2.5 |
≤2.0 |
– |
≤ 0.30 |
Cu (63%), Fe, Mn |
|
Hastelloy C276 |
14.5–16.5 |
14–16 |
15–17 |
≤ 0.01 |
Co, Fe, Mn |
|
WCB |
– |
– |
– |
≤ 0.30
|
Mn, Si, Fe (balance) |
Mechanical Properties
| Material | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
|
SS 304
|
515–750 |
≥ 205 |
≥ 40 |
≤ 201 |
|
SS 316 |
515–750 |
≥ 205 |
≥ 40 |
≤ 201 |
|
Monel 400
|
480–620 |
≥ 170 |
≥ 35 |
≤ 200 |
|
Hastelloy C276 |
760–895 |
≥ 283 |
≥ 40 |
≤ 250 |
|
WCB |
485–620 |
≥ 250 |
≥ 22 |
143–197 |
Applications
Needle valves are suited for precision instrumentation, pilot control lines, and calibration systems, especially in:
- Chemical Laboratories – Flow adjustment for sample gases and liquids
- Hydraulic & Pneumatic Systems – Pressure line isolation and fine flow modulation
- Oil & Gas Exploration – Sampling lines, gauge isolation, and chemical injection skids
- Power Plants – High-pressure control of steam and water
- Instrumentation & Calibration – For differential pressure transmitters and flow meters
- Aerospace & Marine Engineering – In fuel metering and sensitive line regulation
Key Benefits
- Precision Control – Threaded needle allows accurate fine-tuning of flow rates with minimal leakage.
- Leak-Tight Seal – Soft-seat and metal-seat options provide bubble-tight shutoff across a wide temperature range.
- High-Pressure Durability – Designed to withstand pressures up to 10,000 PSI, ideal for aggressive conditions.
- Wide Material Selection – From stainless steel to exotic alloys for corrosive or high-temperature systems.
- Panel Mounting Options – Suitable for control panels in field and laboratory instrumentation systems.
Frequently Asked Questions
Explore our FAQs for insights on materials, customization, and delivery.
Can needle valves be used for on/off control?
Yes, but they are best suited for precise flow regulation rather than quick shutoff.
Are soft-seat needle valves better than metal seat types?
Soft-seat valves provide better leak tightness, while metal-seated valves are preferred in high-temperature or abrasive environments.
Can needle valves handle corrosive fluids?
Yes. Monel, Hastelloy, and SS 316 variants are excellent for handling chemicals, acids, and brines.
Do you offer double-block or block & bleed designs?
Yes. We offer block & bleed needle valves for safe depressurization and instrument servicing.
GET IN TOUCH
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