| Model NO. | J21W-160P | Connection Form | Thread |
| Driving Mode | Manual | Nominal Pressure | Pn160 |
| Channel | Straight Through Type | Structure | Full Bore |
| Type | Check Valve / Needle Valve | Temperature | Normal Temperature |
| End Connection | NPT/BSPT/BSPP | Specification | DN6-DN25 |
| Material | Stainless Steel 304/316 | HS Code | 8481804090 |
A needle valve is a precision-engineered component essential for high-accuracy fluid control systems. Designed to regulate flow with extreme precision, it features a slender, tapered needle that fits into a matched seat.
Manufactured from high-grade stainless steel, offering excellent corrosion and oxidation resistance. Ideal for water, oil, gas, and mildly corrosive media across a wide temperature range.
The metric fine thread ensures a superior seal, high vibration resistance, and ease of installation, even in high-pressure or confined space applications.
Rated for nominal pressures up to 16 MPa (approx. 160 bar). The forged body construction prevents deformation or leakage under extreme conditions.
Designed for low operating torque. The valve stem provides clear tactile feedback, allowing operators to feel exactly when the valve is fully seated to prevent overtightening.
The needle valve operates by rotating the stem, which moves the needle-shaped core vertically relative to the seat. As the gap increases, the flow rate rises; as the gap decreases, flow is restricted until it is completely cut off. This allows for fine-tuned adjustment of reagents, hydraulic oils, and gases in laboratories and industrial processing.
Pre-Sales: Technical consultation and model selection to maximize efficiency and minimize cost.
On-Sales: Timely delivery with strict quality inspections and supervision documents provided.
After-Sales: 12-month warranty from the date of acceptance. Comprehensive technical support and repair/replacement commitments under normal use conditions.