ZZYN内反馈自力式压力调节阀 ZZYN Internal Feedback Pressure Regulating Valve ZZYN内反馈自力式压力调节阀是本公司针对介质粘度大、易结焦的工况而开发、研制的一类自力式压力调节阀，避免了常规自力式压力调节阀不易保温，导压管容易堵塞、影响调节精度的情况。适用于粘度、易结焦介质的泄压稳压的自动控制。该产品具有节能、动作灵敏、运行可靠、操作与维修方便等特点。广泛应用于石油、化工等行业的原油等高粘度介质的泄压稳压的自动控制。
ZZYN type internal feedback self type Pressure regulator is the company according to the medium viscosity,easy coking conditions and development,research a kind of self type pressure regulator,to avoid the conventional self type pressure regulating valve is not easy to heat preservation,connecting pipe easy blockage,influence control accuracy.Suitable for high viscosity,easy coking medium pressure relief stabilized voltage automatic control.this product has the energy saving,action quick,reliable operation,operation and easy maintenance,etc.Widely used in petroleum,chemical and other industries of crude contour viscosity medium pressure relief stabilized voltage automatic control. 标准规格(Standard specifications) 形式Type | 内反馈自力式压力调节阀 Internal Feedback Pressure Regulating Valve | 公称通径Body Size | DN20-DN450(3/4~18) | 公称压力Body Ratings | PN10,16,20,25,40,50,64,100,110,150,250,320,420; ANSI Class 150#,300#,600#,900#,1500#,2000#,2500# | 阀体及阀盖材质 Body&Bonnet Material | WCB,CF8,CF8M,CF3,CF3M,WC1,WC6,WC9,LCB,LCC,LC3,哈氏C… | 填料Packing | V型聚四氟乙稀 V-PTEE/柔性石墨 Flexible graphite | 垫圈Gasket | GRAP+304,GRAP+316,PTEE | 开启压力偏差 Opening pressure error | 当设定压力大于或等于0.5MPa时，其允许偏差为3%设定压力，设定压力小于0.5MPa时，其允许偏差为±0.014MPa。 When the set pressure is 0.5MPa or above,the allowable deviation is 3% of the set pressure.When the set pressure is less than 0.5MPa,the allowable deviation is ±0.014MPa. | 连接方式Connections | 法兰型（RF、MFM）Flange type(RF,MFM)/焊接型（SW、BW）Welding type(SW,BW) | 涂层Painting Color | 棕色漆Brown painting/不锈钢阀体可不涂漆No painting on stainless steel valve body | 压力调节范围 Pressure regulating scope(KPa) | 0.1~0.3 0.2~0.4 0.3~0.5 0.4~5.5 5~15 6.5~20 10~30 15~40 25~50 40~80 70~150 120~180 160~220 200~260 240~300 280~350 300~400 380~450 430~500 480~560 540~620 600~700 780~900 800~1000 950~1100 1000~1500 1400~2000等（高压及特殊调节范围根据实际情况定high pressure and special regulating scope shall be decided according to practical situations） |
注：以上只是标准组合，根据工况条件，本表以外的规格也是可能的。 Note:the above is just a standard combination,according to the working conditions,other specifications are also possible.
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