Essential parameters for selecting needle valves

The main Needle Valve product names of China Needle Valve Network include:ANSI J11W/H Internal And External Thread Needle Valve,ANSI J11W/H Internal Thread Needle Valve,ANSI JG-1F/JG-2F Multi-entrance Metering Valve,CJ123 Multi-functional Pressure Gage Needle Valve,

EN5-4 SS-M2F8 Internal Thread Three-valve Manifold,EN5-1 SS-M2F8 Internal Thread Two-valve Manifold

Needle valve is a type of valve used for fluid control, commonly used for high-precision flow regulation and pressure control. Here are some common parameters of needle valves:

1. Diameter: The diameter of a needle valve refers to the size of the interface on the valve, usually expressed in inches or millimeters, such as 1/4 inch, 6 mm, etc.

2. Pressure Rating: The maximum working pressure that a pointer valve can withstand. Common working pressure ranges include 1000 psi, 3000 psi, 6000 psi, etc.

3. Temperature Rating: The maximum operating temperature that a pointer valve can withstand. The common working temperature range includes -20 ° C to 200 ° C.

4. Material: The material of a needle valve usually consists of two parts: the valve body and the valve core. Common materials include stainless steel (such as 316 stainless steel), copper, aluminum, etc. The specific choice will depend on the fluid properties and application environment.

5. Connection: The connection methods for needle valves usually include threaded connections (such as NPT, BSP, etc.) and flange connections (such as ANSI, DIN, etc.), and can also be customized according to specific needs.

6. Flow Characteristics: The flow characteristics of needle valves are usually divided into two types: linear and equal percentage. The linear flow characteristic refers to the linear relationship between valve opening and flow rate; The equal percentage flow characteristic refers to the fact that for every increase in valve opening by a certain percentage, the flow rate also increases by the same percentage.

7. Needle Type: Needle valves come in various shapes, such as conical, flat, V-shaped, etc., which are suitable for different fluid control needs.

Do you still need to know or purchase the following Needle Valve products: