“飞环”牌柱塞阀是根据径向密封原理设计的一种新型阀门。它摒弃了一般阀门沿用之盘根垫料,而代之以密封性能较好的新型密封材料制成的密封圈。该密封圈具有耐磨,耐腐蚀,回弹性好,致密性好等特点,在限定的工作温度下能保证阀门长期稳定的工作,而不产生泄漏。对节约能源,创建无泄漏工厂,具有明显的经济效益。“飞环”牌柱塞阀结构(如图一),当旋转手轮时,通过阀杆带动柱塞,使之在两个密封圈中上下往复运动,完成阀门的开启和关闭。在柱塞阀中,柱塞与密封圈,密封圈与阀体之间均采用适量的过盈配合。通过调节阀盖 “Flying ring” brand piston valve is based on the principle of radial seal designed a new type of valve. It abandoned the general packing along the valve gasket, and replaced by a better sealing performance of the new seal made of sealing ring. The seal has the characteristics of wear resistance, corrosion resistance, good resilience, good compactness and the like, and can ensure long-term and stable operation of the valve under limited working temperature without leakage. To save energy, create a leak-free factory, with obvious economic benefits. “Flying ring” brand piston valve structure (Figure 1), when the hand wheel rotation, driven by the valve stem plunger, so that the two seals up and down reciprocating motion, the completion of the valve to open and close. In the plunger valve, the plunger and the seal, seal and valve body are used between the right amount of interference fit. By adjusting the valve cover