小口径楔式闸阀结构改进瓦房店市小型阀门厂陈得余李述宏小口径楔式闸阀应用广泛，但闸板不能互换。经长时间的探讨和试验，在阀门结构方面做了改进，见图。首先将楔形密封圈加工出成品，然后由两端流水口嵌入阀体内，校准密封圈斜面大小头中心线，靠标准闸板斜面胎定位。... Small-caliber wedge gate valve structure improvement Wafangdian City, a small valve plant Chen Deyu Li Shuhong Small-caliber wedge gate valve is widely used, but the gate can not be interchangeable. After a long period of exploration and testing, the valve structure has been improved, see Figure. First of all, the wedge ring is processed into a finished product, and then by the two ends of the water inlet embedded in the valve body, calibrated seal bevel size head centerline, positioning by standard ramp incline. ...