Electric control valve,single-seat valve,double-seat valve,sleeve valve

Electric single-seat control valve is featured by good sealing and small leakage. But for the relatively big axial unbalance force of the valve plug, the work pressure shall not be over high.
Electric dual-seat control valve is featured by big rated flow rate, small axial balance force of valve plug, stable operation and big service pressure difference, etc., and so has been widely used. But its leakage is bigger than that of single-seat valve.
Electric sleeve control valve has better stability and resistance to cavitation than the abovementioned two valves.

Relative Parameters
Nominal diameter: 20—300mm
Nominal pressure: 1.6 Mpa,4 Mpa,6.4Mpa
Connection Type:Flange Connection
Valve body material: cast iron,cast steel,cast stainless steel
Connection way: flange connection according to JB79-59
Operating temperature range:normal type: -20°C—+230°C;
heat dissipation type:-60°C—+450°C
Function form: electric on-off
Leakage:single-seat valve 0.01%×rated Kv
double-seat valve 0.5%×rated Kv
sleeve valve 0.5%×rated Kv

Type:ZAZP, ZAZN, ZAZM,BELLAZP,BELLAZN,BELLAZM

Application:automatic control, such as building material, metallurgy, chemical engineering and mine.