Three-way diaphragm valve

• Main Author: SUN ANYUAN
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2011
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model provides a three-way diaphragm valve which is more hygienic and can reduce the volume of a stagnation zone. The three-way diaphragm valve comprises a valve body, and a drive shaft and a drive mechanism which are installed on the valve body. A valve chamber, and a first flowing chamber and a second flowing chamber which are respectively communicated with the valve chamber are arranged in the valve body. A first fluid passage is arranged at the first flowing chamber. A valve seat is arranged in the valve chamber. A diaphragm is arranged in the valve chamber at a position corresponding to the valve seat. The drive shaft which is linked with the drive mechanism is arranged on one side of the diaphragm relative to the side of the valve seat. The three-way diaphragm valve is characterized in that two main fluid passages are additionally arranged on the valve body, one ends of the two main fluid passages are communicated with the second flowing chamber and the other ends of the two main fluid passa