Home > Product > Needle valve > Needle Valve Technical Specifications
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At Perfect Engineers, every needle valve is designed to meet exacting performance standards for pressure, temperature, corrosion resistance, and dimensional accuracy. Whether you need a compact valve for an analyzer panel or a high-pressure valve for an oilfield skid, we have precisely what your system demands.
Below is a complete list of our standard technical specifications for needle valves. We also offer customized specifications for special project requirements.
| Parameter | Specification Range / Options |
|---|---|
| Valve Size | 1/8” to 2” (3 mm to 50 mm) |
| Body Material | SS 304, SS 316, Brass, Carbon Steel, Monel, Hastelloy |
| Seat Material | PTFE, PEEK, Graphite, Metal-to-metal |
| End Connection | BSP / NPT (Threaded), Compression, Flanged, Socket Weld, Butt Weld |
| Pressure Rating | Up to 10,000 PSI (690 Bar); Custom: up to 20,000 PSI |
| Temperature Range | -20°C to +450°C (Depending on seat and body material) |
| Bonnet Type | Integral Bonnet / Screwed Bonnet |
| Stem Design | Rising stem with fine thread; Non-rotating tip (optional) |
| Handle Type | Knurled Round / T-bar / Anti-tamper / Lockable |
| Flow Type | Straight / Angle / Block & Bleed |
| Operation | Manual; Optional pneumatic or motorized actuation |
| Testing Standards | 100% Hydrostatic & Pneumatic Testing as per API / ASME |
| Compliance | ASME B16.34, ANSI B1.20.1, DIN, ISO |
| Leakage Class | Class VI (zero leakage) |
| Packing Type | PTFE / Graphite adjustable stem packing |
| Surface Finish | Passivated / Electro-polished / Pickled (on request) |
| Coating (if applicable) | Zinc, Nickel, or Epoxy Coating for CS |
| Certificate Options | MTC (EN 10204 3.1), IBR, Hydrostatic Test, Third-party |
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| Material | Max Pressure | Max Temp |
|---|---|---|
| SS 316 | 10,000 PSI | 450°C |
| Brass | 3,000 PSI | 180°C |
| Carbon Steel | 6,000 PSI | 400°C |
| Monel | 7,500 PSI | 425°C |
| PTFE Seats | 4,000 PSI | 200°C |
| Graphite Seats | 6,000 PSI | 450°C |
These specifications are suitable for needle valves used in:
Yes. Our products follow ASME B16.34, ANSI B1.20.1, and DIN standards as per client requirements.
Absolutely. We offer EN 10204 3.1 certificates, along with IBR, hydro test reports, and third-party inspections.
We use a precision-threaded rising stem, with optional non-rotating tips for consistent shut-off and longer seat life.
Yes! We support OEMs, EPC contractors, and end users with tailored valve specifications and drawings.
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