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QJ（D/S）RG型精小型气动高压O型球阀是一种转角为90°的球阀。阀体采用三开（三体）式法兰连接球阀，球芯采用固定式结构，需要操作力矩小，聚四氟乙烯阀座采用浮动嵌入式结构，密封性能优良。执执行机构采用ZGH、ZGQ高性能气缸活塞执行机构，结构简单，输出力矩大。该球阀适宜控制含有纤维和固定颗粒的高压或高压差流体。双作用气动高压O型球阀型号为QJSRG-160/320，单作用气动高压O型球阀型号为QJDRG-160/320。
QJ （D / S） RG-type O-intensive small pneumatic high pressure valve is a valve angle of 90 °. Open three-body （three-body） type flanged ball valve, ball core fixed structure, need to operate a small torque, the embedded PTFE floating seat structure, good sealing performance. Executive actuator using ZGH, ZGQ high performance cylinder piston actuators, simple structure, the output torque. Gai control valve suitable for particles with high fiber and fixed or fluid pressure differential. O-type double-acting pneumatic high pressure valve model QJSRG-160/320, single-acting pneumatic high-pressure O-type ball valve Model QJDRG-160/320.
1.规格技术参数Specifications Technical parameters
| 型式Type | 三体式法兰连接高压球阀Three-body flanged ball valve high pressure | |||||||||
| 公称通径mm | 10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| 公称压力Mpa | 16.0、32.0 | |||||||||
| 法兰型式 Flange Type | 法兰标准按JB/T79.2-94凹凸面 Flange standard convex surface by JB/T79.2-94 | |||||||||
| 材料 Material | 碳钢（ZG230-450）和不锈钢（ZG1Cr18Ni9和ZG0Cr17Ni12Mo2） | |||||||||
| 介质温度℃ temperature ℃ | -40~180 | |||||||||
| 填料Filler | 聚四氟乙烯PTFE | |||||||||
| 球芯材料 Ball core material | 0Cr17Ni12Mo2 | |||||||||
| 阀座材料 Seat Material | 聚四氟乙烯PTFE | |||||||||
| 额定行程 Rated travel | 90° | |||||||||
| 环境温度 Ambient temperature | -40~80℃ | |||||||||
| 泄漏量L/h | 1.8×10-7×ΔP×D | |||||||||
| 供气压力Mpa | 0.5~1.0 | |||||||||
| 允许压差 Permissible differential pressure | 公称压力值Nominal value | |||||||||
| 固有流量特征 Inherent flow characteristics | 快开特性Quick-opening feature | |||||||||
