Type needle valve is a valve can be precisely adjusted, has a wide use, such as flame cutting with the cutting distance, the flame temperature adjustment knob is the needle valve. Instrument type needle valve is an important part of the meter in the piping system, mainly cut-off valve and ball valve, its function is used as open or cut off the pipeline path.

The effect of any valve for cutting fluid. Depending on the valve core, can be divided into cut-off valve, gate valve, plug valve, ball valve butterfly valve, needle valve, etc. Type needle valve type than any other type of valve that can tolerate more pressure, sealed performance is good, so generally used for small flow, high pressure gas or liquid medium sealing. Type needle valve and pressure gauge is used the most appropriate. General type needle valve type screw thread connection.

Applicable medium: water, oil, steam, liquefied petroleum gas (LPG), etc Nominal size: 6 ~ 40 mm working pressure: 1.6 ~ 32.0 MPa applicable temperature: - 20 ℃ ~ 570 ℃ materials: 20 #, 1 cr18ni9ti, 304, 304, 316 l, 12 cr1mov, etc