J941H 电动截止阀价格

一、J941H/W电动截止阀--概述 J941H,J941W电动截止阀属于强制密封式阀门，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀门时，操作力所需要克服的阻力，是阀杆和填料的摩擦力与由介质的压力所产生的推力，关阀门的力比开阀门的力大，所以阀杆的直径要大，否则会发生阀杆顶弯的故障。近年来，从自密封的阀门出现后，截止阀的介质流向就改由阀瓣上方进入阀腔，这时在介质压力作用下，关阀门的力小，而开阀门的力大，阀杆的直径可以相应地减少。同时，在介质作用下，这种形式的阀门也较严密。我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下。 电动截止阀开启时，阀瓣的开启高度，为公称直径的25%～30%时，流量已达到*大，表示阀门已达全开位置。所以截止阀的全开位置，应由阀瓣的行程来决定。 二、J941H/W电动截止阀--执行标准                         设计与制造            结构长度            法兰尺寸            压力-温度            试验-检验                            GB122235            GB12221            GB9113 JB79            GB9131            GB/T13927 JB/T9092             三、J941H/W电动截止阀--压力试验                         公称压力            1.6            2.5            4.0            6.4            10.0            16.0                            强度试验            2.4            3.8            6.0            9.6            15.0            24.0                            水密封试验            1.8            2.8            4.4            7.0            11.0            18.0                            上密封试验            1.8            2.8            4.4            7.0            11.0            18.0                            气密封试验            0.5-0.7             四、J941H/W电动截止阀--主要零件材料及性能                         体、盖、板            阀杆            密封面            垫片            填料            工作温度℃            适用介质                                         WCB            2Cr13            13Cr STL 木体材料 With Body Material 尼龙 Nylon            增强柔性石墨 Enhanced Flexible Graphite 13Cr/柔性石墨 1Cr13/Flexible Graphite 08软钢 08 Soft Steal 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XD550F(T) PTFE            柔性石墨 增强柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE 　 　            ≤425            水 蒸汽 油品                                         WC1            38CrMoAl 25Cr2MoV            ≤450                                         WC6            ≤540                                         WC9            ≤570                                         C5 C12            ≤540                                         ZGCr5Mo            ≤200            硝酸类                                         ZG1Cr18Ni9Ti            1Cr18Ni9Ti                                         ≤200            醋酸类                                         ZG1Cr18Ni12Mo2Ti            1Cr18Ni12Mo2Ti                          五、J941H/W电动截止阀--主要尺寸和重量 1.6MPa                         1.6MPa            DN            L            D            D1            D2            b            n-φd            H            Do            重量                            凸面 法兰            RF            J941H            J941Y            J941W            J941F            J941N 16C            16P            16R            16I            10            130            90            60            40            14            4-14            198            120            4.9                            15            130            95            65            45            14            4-14            218            120            5.3                            20            150            105            75            55            14            4-14            258            140            7.0                            25            160            115            85            65            14            4-14            275            160            7.4                            32            180            135            100            78            16            4-18            280            180            8.3                            40            200            145            110            85            16            4-18            330            200            12.6                            50            230            160            125            100            16            4-18            350            240            14                            65            290            180            145            120            18            4-18            400            280            22.7                            80            310            195            160            135            20            8-18            355            280            29                            100            350            215            180            155            20            8-18            415            320            32.8                            125            400            245            210            185            22            8-18            460            360            79.5                            150            480            280            240            210            24            8-23            510            400            93                            200            600            335            295            265            26            12-23            710            400            179                            250            622            405            355            320            30            12-25            786            450            441                            300            698            460            410            375            30            12-25            925            500            646             六、J941H/W电动截止阀--主要尺寸和重量 2.5MPa                         2.5MPa            DN            L            D            D1            D2            b            n-φd            H            Do            重量                            凸面法兰            RF            J941H            J941Y            J941W            J941F            J941N 16C            16P            16R            16I            10            130            90            60            40            16            4-14            198            120            4.9                            15            130            95            65            45            16            4-14            218            120            5.3                            20            150            105            75            55            16            4-14            258            140            7.0                            25            160            115            85            65            16            4-14            275            160            7.4                            32            180            135            100            78            18            4-18            280            180            8.3                            40            200            145            110            85            18            4-18            330            200            12.6                            50            230            160            125            100            20            8-18            350            240            16                            65            290            180            145            120            22            8-18            400            280            25                            80            310            195            160            135            22            8-23            355            280            30                            100            350            230            190            160            24            8-25            415            320            34.8                            125            400            270            220            188            28            8-25            460            360            89.5                            150            480            300            250            218            30            12-25            510            400            99                            200            600            360            310            278            34            12-25            710            400            181                            250            622            425            370            332            36            12-30            786            450            445                            300            698            485            430            390            40            16-30            925            500            651

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