一、概述Outline

QJ（D/S）RB精小型氣動(dòng)保溫O型切斷球閥是由阿斯塔氣動(dòng)活塞式執(zhí)行機(jī)構(gòu)和夾層整體鑄造閥體組成。閥芯為圓柱通孔球體。
該產(chǎn)品閥座設(shè)計(jì)成具有像彈簧一樣的回彈作用而形成雙撓性閥座，確保了球體密封的可靠性。同時(shí)介質(zhì)壓力與上游端撓性結(jié)構(gòu)的回彈力又增加了下游端閥座的密封。撓性結(jié)構(gòu)又自動(dòng)補(bǔ)償閥座的磨損及溫度和壓力變化，提高了使用壽命。
該產(chǎn)品具有易拆裝維修、外形整潔、體積小巧、保溫效果好等優(yōu)點(diǎn)。能廣泛應(yīng)用于易結(jié)晶及粘稠的流體，并能滿足各種需要保溫介質(zhì)的場(chǎng)合。如含蠟質(zhì)、瀝青較多的石油等被控介質(zhì)，防止介質(zhì)的結(jié)晶，確保自控系統(tǒng)高效運(yùn)轉(zhuǎn)。

QJ （D / S） RB O-intensive small air cut off valve insulation by pneumatic piston actuator Astana and laminated the whole cast body composition. Spool cylindrical hole for the global sphere.
The product is designed to have a seat like a spring rebound effect and the formation of double-flex seat, make sure the ball seal reliability. While medium pressure and the upstream end of the resilient and flexible structures to increase the downstream end of the valve seat seal. Flexible structure and automatically compensates for seat wear and the temperature and pressure changes, increased service life.
The products are easy disassembly and maintenance, neat appearance, small size, good insulation effect and so on. Easy to crystallize and can be widely used in viscous fluids, and insulation to meet the needs of media applications. Such as those containing wax, oil, asphalt more charged the media to prevent crystallization of the media, to ensure efficient operation of the automatic control system.

二、規(guī)格技術(shù)參數(shù)及性能指標(biāo)Technical parameters and performance specifications

1.規(guī)格技術(shù)參數(shù)Specifications Technical parameters

2.執(zhí)行機(jī)構(gòu)轉(zhuǎn)扭及動(dòng)作時(shí)間Twist and turn actuators operating time

三、保溫介質(zhì)壓力Insulation medium pressure

四、可配附件Available Accessories

  電磁閥、手輪機(jī)構(gòu)、閥位開(kāi)關(guān)、電-氣閥門(mén)定位器、空氣過(guò)濾減壓器等

Solenoid valve, hand wheel, valve position switches, electric - gas valve positioners, air filter regulator, etc.

五、主要外形尺寸Main dimensions

1.法蘭式氣動(dòng)保溫O型切斷球閥Flange O-off ball valve pneumatic insulation 

 2、對(duì)夾式氣動(dòng)保溫O型切斷球閥Insulation on the clip-O-off ball valve pneumatic