Most Balancing Valves are globe style and incorporate a parabolic (plug) shaped disc.
大部分平衡阀采用截止阀结合抛物线(插塞)阀瓣。
2
The Fig. 1710 Balancing valve is a non-rising stem design incorporating a parabolic (plug) shaped disc.
型号1710平衡阀为暗杆结构，配置抛物线（塞）形阀瓣。
3
By sowing disc and plug transmission automatic control and current feedback control of pneumatic metering components, for seed high accuracy, high efficiency automatic seeding.