The adjustable range is one of the important characteristics of rotary valve

Adjustable scope in the process industry is the most critical, adjustable range of about 150 rotary valve: 1 ( VALTEK adjustable range of ball valve can reach 300:1, the butterfly valve and the CAM flexure valve is adjustable in the range of 100:1) 。 The adjustable limit of the corresponding cut-off valve for spake, that is to say, rotary valve can provide five times as wide adjustable range. In maximum flow is 1000 l/min, for example, the type of valve can effectively to reduce traffic to 30 liters per minute, and rotary valve can adjust flow to less than 10 litres per minute, the more precise the valve control the flow of key in the process the better the repeatability, directly to reduce the unqualified products in the process industry. Two characteristics of eccentric rotating valve to improve its adjustable range, the first is the orifice plate design, eccentric is an effective garden, a quarter of the eccentric valve core is V type, and the traditional shape of the valve core is, when the eccentric rotary valve is closed, it's a small V made in low flow formed when very precise control of the large flow, it is almost the valve open to almost the same as the pipe diameter. The second characteristic is the execution machine stroke rotary valve actuators with certain stroke membrane method and two kinds of the cylinder. 1 stop valve trip is about 3/4 ~ 7/8 and rotary valve stroke more than 2. For any other size of the valve. The trip at the input, the greater the work is in the control, the better. Adjustable ratio control valve to provide accurate formula of according to the formula, regardless of the size of each flow flux, the traditional linear or pneumatic control valve is no longer adapt to such a task, rotary valve can improve the performance and reduce device control valve in the plant life cycle costs. Wide adjustable range of rotary valve allows the user to raise the standards of rigorous cut, thus improve the cost/benefit index. Metal seated and made of special material can prolong the service life of the valve in the village, improve the performance of the valve. The rotation of the simple structure design, can to minimize the maintenance work. Reduce the production cost of the owner.