High Pressure Needle Valve
Needle valve is a valve that can be precisely adjusted, with a wide range of uses, such as on sawing for flame cutting, the knobs for adjusting the temperature of the flame is the needle valve. Instrument needle valve is an important part of the instrument measurement pipeline system, mainly globe valve and ball valve, its function is to open or cut off the pipeline access. Needle valve spool is a very sharp cone, as if the needle inserted into the valve seat, thus named. According to the different core, can be divided into cut-off valve, gate valve, plug valve, ball valve, butterfly valve, needle valve and so on.
Needle valves can withstand greater pressure than other types of valves, with good sealing performance. It is generally used for small flow, high pressure gas or liquid sealing medium. The needle valve used in conjunction with the pressure gauge is the most appropriate. Needle valves are usually made into threaded connection. Nominal pressure: PN2.5 PN4 PN6.4 PN16 PN32Mpa nominal diameter: DN5 ~ DN25 medium: oil, water, gas and other non corrosive or corrosive medium for temperature: -20 ~ +440 -70 DEG to -240 DEG C below 540 DEG C is less than or equal to 570 DEG C and other manufacturing materials: 20#, 1Cr18Ni9Ti, 304, 316, 316L 12Cr1Mov, etc