The needle valve is a larger version of our precision needle valve (Model 2412) that has time-tested reliability and is suitable for stable control in a comparatively large flow range of 50–300 l/min (0.1 MPa).

A needle valve is the typical flow control valve that controls the flow rate based on the change of resistance of the flow channel using an acicular or rod-shaped needle to adjust the opening of the flow channel that functions as a small orifice.
KOFLOC offers simple-type, precision-type and various other needle valves, and also manufactures flow controllers having a combination of a needle valve and diaphragm as well as proportional solenoid valves that electrically control the flow rate.
Features
1. High-Resolution Large Flow Control
Unlike standard industrial ball valves or globe valves which are “all or nothing,” the 2412D allows users to fine-tune high-volume gas flows. The multi-turn handle ensures that even at $50$ or $100 L/min$, you can adjust the flow in small, repeatable increments.
2. Non-Rotary Needle Mechanism
A hallmark of Kofloc engineering, the needle moves linearly (up and down) without rotating.
Benefits: This prevents the needle from “grinding” against the valve seat, eliminating particle generation and ensuring the flow setting remains stable even after thousands of cycles.
3. Excellent Temperature Stability
The 2412D is designed with thermal expansion in mind. It maintains a consistent orifice gap even as the gas temperature fluctuates, preventing the common “flow drift” found in lower-quality needle valves.
For More Information and Price : Kofloc Model 2412D Large Capacity Precision Needle Valve
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