Electric four-way valve Overview: Q946F / H electric four-way reversing valve seal is the use of rotary electric actuators and LL type consisting of a four-way valve, "LL '' type four-way valve wrench or simply operate the actuator rotates the ball 90 °, while the two media flow switch, which easily and quickly achieve the effect of a multi-valve electric four-way reversing valve to seal a wide range of applications, is a construction and management, national defense and people's lives . The important mechanical products tiandun electric four-way valve closed piping system in all kinds of species used to cut off or turn on media streaming, the media in accordance with a predetermined program delivered to each designated point electric four-way valve Features: 1, fluid resistance Small: Connection pipe cross-section is equal to the ball and the valve body, and connected to the ball passage in an arc, the medium through the ball, the fluid resistance 2, the sealing performance: valve seat with a certain elastic deformation of the PTFE material having high strength and, to achieve good sealing performance to ensure the stability of the valve 3, long life: the valve spool and a light neck material used austenitic stainless steel, seat material selection PTFE, can achieve good anti-corrosive effect and prolong the service life of electric valve four. pass valve technical parameters: Body Type: Stone cast body; Nominal diameter: DN50 ~ 600mm; Temperature: -10-325 ℃; nominal pressure: PN1.6-4.0 MPa; Connection: Flange; pressure Cover Type: Gland compression type; Material: WCB, 304,316, etc; seal packing: V-type PTFE packing, flexible graphite filler; medium: water, liquid, gas, nitric acid and other design and manufacturing [GB. / T12237-1989] inspection and testing [GB / T13927-1992 flange standards] [JB / T79.2-1994]