主要性能 Main performance

(控制阀)进口气动蒸汽调节阀在确保等百分比流量特性的前提下，完全切断时采用平面密封，克服了锥面或线密封的一些磨损大、寿命短等常见问题，确保长效反复开关操作时的密封 RETZ On the premise of ensuring equal percentage flow characteristics, the imported pneumatic steam control valve adopts plane seal when it is completely cut off, which overcomes some common problems such as large wear and short service life of conical surface or line seal, and ensures the sealing during long-term repeated switching operation

连接口径：DN15~DN300（法兰连接）Connection diameter: DN15 ~ DN300 (flange connection)

阀体材质：铸钢，不锈钢 Valve body material: cast steel, stainless steel

阀杆材质：13Cr、不锈钢 Valve stem material: 13Cr, stainless steel

阀瓣材质：SS304/SS316+司太立硬质合金+镜面抛光 Disc material: SS304 / SS316 + Stellite + mirror polishing

阀座材质：独立阀座SS304/SS316+司太立硬质合金+镜面抛光 Valve seat material: independent valve seat SS304 / SS316 + Stellite hard alloy + mirror polishing

流向结构：低进高出，高进低出 Flow direction structure: low in high out, high in low out

阀体承压 ：1.6MPa；2.5MPa  Pressure bearing of valve body: 1.6Mpa; 2.5MPa

介质温度：-20~350℃ Medium temperature: - 20 ~ 350 ℃

工作介质 ：水，蒸汽，热导油 Working medium: water, steam, thermal oil

Kv值 Kv value

性能特点∶ Performance characteristics

流量特性∶等百分比控制 Flow characteristics: equal percentage control

可调比∶50∶1 Adjustable ratio: 50:1

输入信号∶4~20MA  Input signal: 4 ~ 20mA

自带定位结构的活动阀瓣能够及时复位，从本质十解决了控制阀常见的偏、卡、漏等现象，确保密封性能  The movable valve disc with its own positioning structure can be reset in time, which solves the common deviation, jamming and leakage of the control valve and ensures the sealing performance

执行机构为多弹簧薄膜结构 The actuator is of multi spring membrane structure

配置电气式阀门定位器 Equipped with electric valve positioner

使用RETZ气动控制阀的温控式换热器 Temperature controlled heat exchanger with pneumatic control valve

① 汽水分离器  ②波纹管截止阀  ③过滤器  ④压力表  ⑤气动调节阀  ⑥疏水阀  ⑦止回阀  

① Steam water separator ② bellows stop valve ③ filter ④ pressure gauge ⑤ pneumatic control valve ⑥ drain valve ⑦ check valve

RETZ (控制阀)进口气动蒸汽调节阀应用 Application of imported pneumatic steam control valve

使用气动控制阀的液位控制 Level control using pneumatic control valves

① 波纹管截止阀  ②过滤器  ③气动调节阀  ④压力表

① Bellows stop valve ② filter ③ pneumatic control valve ④ pressure gauge