Needle Valve Series
- 6000, 10000 Psi Needle Valve
- Compact Gauge Valve
- Screwed Bonnet Needle Valve
- Compact One-Piece Ball Valve
- 2000 Psi Two-Piece Ball Valve
- 1 Way Manifolds
- 2 Way Manifolds
- 3 Way Manifolds
- 5 Way Manifolds
Product drawing»
Structural drawing»
Cooperation
TechnologyMore >>
- Needle valve summary
- Performance
- Applicable principle of model selection
- Common material
- Selection of material
NewsMore >>
In instrument systems, the needle valve often serves as the root valve – directly mounted on a pipe or vessel to isolate pressure gauges, transmitters, or samplers. However, field [2026-06-01]
In high‑pressure hydrogen, nitrogen, or natural gas systems, micro‑leakage is the real challenge. Too small to hear or see, but dangerous and costly over time. Micro‑leaks occur [2026-05-27]
Needle valves are often used in steam tracing lines, hot oil sampling, and boiler instrument tubing above 200°C. Standard needle valves leak from the stem or seize after just one [2026-05-25]
The needle valve seals by metal‑to‑metal contact between the tapered plug and the matching seat. Once worn or damaged, simply tightening the handwheel often fails. Most field lea [2026-05-22]
