DJ41 good low temperature cut-off valve where Hangzhou Tiandun good DJ41 low cutoff valve opening and closing parts of the valve is in the form, the valve seat along the center line to do the lifting movement of a valve seat and valve stroke port directly proportional relationship. Tiandun company cryogenic globe valve opening and closing of the valve stem travel is relatively short, and the valve open contact situation between its seat and valve sealing surface is no longer, all of it very reliable cutting function. Low-pass cut-off valve seat and valve opening proportional to the trip, all at the same time this type of valve is suitable to use as a flow regulator. DJ41 low temperature cut-off valve, once opened, the valve seat and valve sealing surface is no longer in contact, so it's sealing surface wear, less work schedule, opening and closing time is short, life is long. Shanghai Tiandun low temperature cut-off valve structure for low prices, the flow direction through the valve when the medium has changed, so the cut-off valve flow resistance than other valves. Tiandun manufacturers of low-temperature cut-off valve is mainly applied to the operating temperature of -196 ℃ -80 ℃, the medium is liquid chlorine, ammonia, ethylene dioxide, methane, liquefied natural gas and other non-cryogenic liquid particles as off or regulate the use. Ultra-low temperature cut-off valve technical parameters: design and manufacturing [JB / T7749-95] length of the structure [GB / T12221-89] temperature - pressure [GB9131] Inspection and testing [JB / T7749-95] Pressure: PN1.6-16mpa; temperature : 80 ~ -120 ℃, 60 ~ -169 ℃, 40 ~ -196 ℃; Material: WCB, 304 stainless steel, 316 stainless steel, stainless steel 316L; medium: chlorine, ammonia, liquefied natural gas, ethylene, propylene and other low-temperature media.