★Long service life
    More than 50,000 operation life without fault, keep your system operating safely and reliably.
    The newest driver technology of quick switch electric actuator makes the valves have no power consumption at idle time, and need a little of electric power only at work, which effectively reduces the operation cost of system.
    ★The patent positioning technology
    PPD positioning technology completely solves the problem of poor positioning accuracy and a major application difficult of long time reliable operation.
    ★Short switch time
    The valve can complete the switch action in 3~4s.
    ★Large allowable pressure drops
    The pressure drops resistance reaches more than 1.0Mpa.
    ★The valve owns a self-cleaning function to effectively guarantee the piping circulating.
    The valve can easily cut off all kinds of impurities in the pipeline to effectively guarantee the pipeline circulating.
    ★Good seal performance
    The valves with two-way sealing function don’t affected by the spatial position and the flow of medium, and can be installed in any direction.
    With the whole baking finish surfaces, the valve can effectively prevent rusting, and is suited to different medium by changing better seal rings or seal materials.
    ★Widely adaptability, various connection mode (flange, wafer type)
    The valve has small volume, light weight, reliable performance, simple matching, large flow capacity, especially suitable for the medium such as clean liquid and gas.
    Configured with a standard convex pipe flange, the butterfly valves have superior cost-effective performance to realize a broad scope of applications.
    ★Simple and reliable straight-through structure , free to maintain.
    Compared with the S channel structure of solenoid valve, the simple channel has the advantages with small flow resistance and no block.
    The valve never needs maintenance from the beginning of first operation.
    There is no material accumulation near the body.
    ★The new technology for Direct Debugging Switch(DDS) in electric actuators.
    Easy to use! Design by GRAT in China.
    It completely solved the problem of complex debugging and make the technology simpler.
    The debugging can be simplified from 5 steps to 1 step.
    The debugging for electrical and mechanical position can be easy achieved through rotating the knob on the top of the dial after electric actuators and valves are assembled together.

    Valve size ：DN40-DN200
    Body ratings：PN1.6MPa
    Body connections：Wafer type
    Body structure： Central line Soft seal structure of axis
    Action time：3S, 4S, 7S optional（0-90°）
    Power supply：AC220V
    Control signal：4～20mA, 0～5V
    Output signal：4～20mA, 0～5V
    Operating pressure：PN1.6Mpa, PN2.5Mpa
    Medium temperature：≤120℃（The higher temperature resistance in reserve）
    Ambient temperature：≤50℃
    Flow coefficient（CV）：Please download the data on our website (The flow coefficient depends on the flow requirements of the customer.)
    Applicable medium ：Water, oil, gas.Dead zone：0.5%
    Repeatability error：0.5%
    Body material：SUS304 SUS316 WCB

Wafer type：

Flanged type： 

The implementation standards of the electric butterfly valve

Properties and specification