The effect of any valve for cutting fluid. Depending on the valve core, can be divided into cut-off valve, gate valve,
cock, ball valve,
Butterfly valveType, needle valve, etc.
Needle valve type that can tolerate more than other types of valve
pressure, sealed performance is good, so generally used for small flow, high pressure gas or liquid medium sealing. Needle valve type and
Pressure gaugeIs used the most appropriate. General type needle valve type screw thread connection.Nominal pressure: PN2.5 PN4 PN6.4 PN16 PN32Mpa: nominal diameter DN5 ~ DN25 applicable medium: oil, water, gas, etc
corrosionSex or corrosive medium applicable temperature: - 20 ºC ~ + 440 ºC -- 70 ºC ~ 70 ºC 540 ºC 570 ºC or less or less manufacturing materials such as: 20 #, 1 cr18ni9ti, 304, 304, 316 l, 12 cr1mov, etc
Butt Welded High Temperature and Pressure Needle Valve
Performance and specification
Design and manufacture: GB/T12224-1989,JB/T3595-2002, connection type: butt welding type, Structural characteristic: taper movable disc;with heat dissipation type, test and inspection: GB/T9092-1999.
|gas pressure test||19.2|
|applicable medium||Water,Steam,Oil, etc|
Type and the materials of main parts
|J61H-160||20#||20#||2Cr13||20#||Flexible graphite, PTFE|
|J61W-160P||1Cr18Ni9Ti||1Cr18Ni9Ti||1Cr18Ni9Ti||1Cr18Ni9Ti||Flexible graphite, PTFE|
|J61Y-160V||12CrMov||12CrMov||12CrMov||20#||Flexible graphite, PTFE|
1, low temperature medium pipeline system and device, appropriate chooses combined with low temperature type needle valve bonnet.
2, refining unit of catalytic cracking unit of piping system, can choose lifting lever type needle valve.
3, chemical system in acid and alkali corrosive medium, such as equipment and piping system, appropriate chooses of austenitic stainless steel and ptfe seat sealing type stainless steel needle valve.
4, metallurgy system, power system, petrochemical plant,Urban heating systemIn the pipeline system of high temperature medium or device, can choose metal to metal seal type needle valve.
5, the need for flow control, can choose the worm gear and worm drive, pneumatic or electric type with v-shaped opening adjust needle valve.6, oil, natural gas transportation director line, need cleaning the pipeline, and to be buried in the ground, with full size, full welded structure type needle valve;Buried in the ground, choose the full size welded ball valve connection or flange connection.
6, product oil pipeline and storage equipment, choose the type needle valve with flange connection.
7, city gas and natural gas pipelines, selection of flange connection and female connection type needle valve.
8, metallurgy system oxygen in the pipeline system, appropriate chooses strict degreasing process, flange connection type needle valve.