Brass needle valve 1/4

The Brass Needle Valve is a precision flow control valve designed for throttling (regulating) the flow rate of fluids and gases in low-to-medium pressure systems. Its fine metering capability makes it suitable for instrumentation, calibration, and precise process control applications.

📋 Technical Specifications

Parameter	Detail
Nominal Size	$\text{1/4}''$
Body Material	Brass
Maximum Pressure	$\text{2000}\,\text{psi}$ (≈ $\approx 138\,\text{bar}$ )
Function	Throttling and Flow Regulation
Connection Type	Typically $\text{NPT}$ Threaded (implied by size)

⭐ Key Features and Operation

Precision Flow Control: The valve uses a finely tapered needle-shaped stem that fits into a small orifice. Turning the handle slowly allows for precise, gradual adjustments to the flow rate, offering excellent metering capability.
High Pressure Rating: The robust brass construction is rated up to $\text{2000}\,\text{psi}$ , making it suitable for high-pressure gaseous or hydraulic lines (within the stated limit).
Brass Construction: The brass material offers good strength, excellent resistance to corrosion from water, and is compatible with air, oil, gas, and many hydraulic fluids.
Compact Size: The $\text{1/4}''$ size is ideal for small bore lines and instrumentation panels where space is limited and precise control is necessary.

🏭 Applications

This valve is typically utilized in applications that require precise adjustment of flow:

Instrumentation Lines: Controlling pressure and flow to gauges, sensors, and analyzers.
Hydraulic and Pneumatic Circuits: Metering flow rates to actuators or cylinders.
Burner Control: Regulating fuel or air flow for fine flame adjustment.