ZDHLS-W electric small-caliber single-seat bellows sealed regulating valve is composed of electric actuator and small-caliber single-seat bellows sealed regulating mechanism. In addition to its compact structure and S-streamlined channel, the regulating mechanism has the characteristics of small pressure drop, large flow rate, wide adjustable range and high flow characteristics. Besides, stainless steel bellows seal and double-layer packing seal structure are adopted at the upper valve cover, which is suitable for extremely toxic, flammable, explosive, volatile and rare precious metal media. The adjustment can also be used in occasions requiring vacuum control.
Specification model
Technical parameters and performance indicators
Main technical parameters of adjusting mechanism
Note: DN20 has no Cv value of 10 and 14.
Main parts materials
Main technical parameters of electric actuator
Note: detailed technical parameters refer to their product selection information.
Performance index
Note: Standard V type tetrafluoroethylene packing is adopted.
Electric actuator configuration and allowable pressure difference Delta P
Flange distance
Note: flange spacing meets IEC534-3-1976 standard.
Shape size
