brass tube fitting

Needle valve type function type valve is an important part of the meter in the piping system, mainly cut-off valve and ball valve, needle valve type is used for open or cut off the pipeline path. Needle valve has the advantages of good sealing, long service life. Even after the sealing surface damage, only need to replace quick-wear part, may continue to use. When installing type needle valve should make the flow of medium and the direction of arrow on valve body. Manual stop valve, ball valve can be installed in any position on line. Needle valve can be accurately adjusted valve USES broad, such as flame cutting with the cutting distance, the flame temperature adjustment knob is the needle valve. Needle valve valve core is a very sharp cone, like a needle inserted into the seat.
Ball valve ball valve opening and closing by stem drive, round ball valve axis brass tube fitting rotation movement of the valve, can be used to adjust and control of the fluid. Ball valve in the line is mainly used for cutting, distribution, and change the flow direction of medium, suitable for switch, cut off valve use.
Characteristics of needle valve type needle valve with easy installation and disassembly, fastening connections, is conducive to fire, explosion, and the advantages of high compression capacity, sealed performance is good, is power stations, oil refining, chemical industry and instrument measuring line of an advanced connection mode of the valve. Working principle of the needle valve type needle valve working principle is to 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 than other types of valves that can tolerate more pressure, sealed performance is good, usually used for small flow, high pressure gas or liquid medium sealing. Needle valve and pressure gauge with Z is appropriate, the general 38 tube fitting type needle valve type screw thread connection.