Electric seat control valve, widely used in industrial automation and control applications in fluid regulation. 
 Main features: 
 1, there are two valve ball valve body, fluid role in the up and down thrust on the valve ball, but close to the size of its opposite, so the unbalanced force is small, allowing a large pressure difference. 
 2, the nominal flow coefficient than the single-seat control valve with a large caliber, but the leak was large compared with single-seat valve. 
 Optional LPS Series, 9610L series of straight travel electric actuator, control a digital, electronic, switch mode.