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            | 技术数据和性能参数Technical data and performance parameter: 公称压力:Nominal pressure: 1.0 Mpa, 1.6 Mpa, 2.5 Mpa, 4.0MPa(ANSI Class 125, 150lb, 300lb)
 规格:Nominal size: DN15~DN200 (1/2”-8”)
 结构长度Face to face dimension: DIN3202, ANSI B16.10 or on client’s design
 法兰连接尺寸Flange connection dimension: DIN2501, ANSIB16.5 or on client’s design
 测试标准Pressure test: API 598, API6D
 适用温度Suitable temperature: -40℃~180℃
 适用介质Suitable medium: This check valve can be applied in various concentrations of Acid, Alkali, Aqua regia and strong chloridizing etc (except the high-temperature melting alkali metals, element fluorine & chlorine-trifluoride).
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            | 主要零件材料 Main parts material: 
 
                
                    
                        | 零件名称 Part name | 材质 Material |  
                        | 阀体Body  | Cast steel /Cast iron lined with FEP  |  
                        | 阀瓣Disc  | Cast steel/Cast iron lined with FEP  |  
                        | 阀盖Bonnet  | Cast steel /Cast iron lined with FEP  |  |  
            | 主要性能规范: 
 
                
                    
                        | 公称压力Nominal pressure
 | 试验压力Test pressure
 | 工作压力working pressure
 | 工作温度working temperature
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                        | 密封  | 强度 |  
                        | 16Kgf/Cm2 | 16Kgf/Cm2 | 24Kgf/Cm2 | 16Kgf/Cm2 | -80~200 |  |  
            | 主要外形尺寸及连接尺寸 Main outline dimensions and connection dimensions:
 
 
 
                
                    
                        | 公称通径 | 尺           寸 |  
                        | L | D | D1 | D2 | b | f | Z-Ø |  
                        | 15 | 130 | 95 | 65 | 45 | 16 | 3 | 4-Ø14 |  
                        | 20 | 150 | 105 | 75 | 55 | 16 | 3 | 4-Ø14 |  
                        | 25 | 160 | 115 | 85 | 65 | 18 | 3 | 4-Ø14 |  
                        | 32 | 180 | 135 | 100 | 78 | 18 | 3 | 4-Ø18 |  
                        | 40 | 200 | 145 | 110 | 85 | 20 | 3 | 4-Ø18 |  
                        | 50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-Ø18 |  
                        | 65 | 290 | 180 | 145 | 120 | 22 | 3 | 4-Ø18 |  
                        | 80 | 310 | 195 | 160 | 135 | 22 | 3 | 6/2-Ø18/M16 |  
                        | 100 | 350 | 215 | 180 | 155 | 24 | 3 | 6/2-Ø18/M16 |  
                        | 125 | 400 | 245 | 210 | 180 | 26 | 3 | 6/2-Ø18/M16 |  
                        | 150 | 480 | 280 | 240 | 210 | 28 | 3 | 6/2-Ø23/M20 |  
                        | 200 | 600 | 335 | 295 | 265 | 30 | 4 | 10/2-Ø23/M20 |  |  |  |