Examining Convenient Needle Valves Tactics

Article Needle Valves (A6fa207)

A needle valve is a type of valve having a small port and a threaded , needle-shaped plunger. The double block and bleed valve is also called DBB valve , generally speaking, it is make up by two ball valve and one neddle valve or two ball valve and a globe valve. This allows a needle valve to be mounted directly within a heated oven, facilitating control of flow switching in multidimensional systems while keeping the gases at oven temperature. The nominal pressure of needle valve is PN1.6MPa, PN2.5MPa, PN4.0MPa, PN6.4MPa, PN10.0MPa, PN15.0MPa, PN20.0MPa, PN32.0MPa,