AVK对夹式软密封蝶阀

AVK对夹式软密封蝶阀

AVK蝶阀|AVK软密封蝶阀|AVK对夹式蝶阀|AVK对夹式软密封蝶阀

AVK对夹蝶阀，中线型带活动内衬，PN 10/16 - EPDM内衬，符合饮用水认证，镀镍球墨铸铁蝶板

型号: 76/70-20

连接: 法兰 
材质: 球墨铸铁 
DN: DN50 - DN300 
产品压力等级: PN 10/16 
法兰钻孔: 端部连接符合EN 1092-2 PN 6/10/16, ASME B16.5 Cl. 150 
关闭方向: 顺时针关


 

途：水和中性流体
         ≤120度
测试：
液压测试：阀瓣密封： 1.1 x PN
               阀瓣强度： 1.1 x PN
               阀体： 1.5 x PN (Min.)
               功能测试： 1 x 开/关
执行机构   杠杆
               带手轮的蜗轮箱
               气动执行器 (单/双 操作)
               电动执行机构
               延伸杆
               请参阅单独的技术说明
认证         DVGW
               KIWA - NL
               WR C approved
               S VGW
               J KR
材料：阀体                   灰铸铁GG-25, 符合 DIN 1691
                                  (B S 1452 grade 250)
         外部涂层             环氧树脂 200 μ, ral 5017
         衬套                   EPDM 硫化在阀体上
         阀瓣                   DN ?300: 不锈钢 AIS I 431
                                                  (B S 431S 29)
                                  DN ?350: 球墨铸铁，GGG-40符合
                                                  DIN 1693, (B S 2789
                                                  grade 420 - 12 min.),
                                                  带 340 μ 环氧树脂涂层
         轴和圆锥销          不锈钢 AIS I 431(B S 431S 29)
         顶部轴密封          DN ?350: 2 EPDM O型圈 放入一个
                                                   RG10铜制的套管里
                                  DN ?400: EPDM O型圈 放入一个
                                                   装有沉埋的镀锌钢8.8制
                                                   的螺栓的衬管里
         底部轴密封          DN ?350: 镀锌钢 8.8制，带一个紫
                                                   铜圈的衬套
                                  DN ?400: 轴向轴承 and alu铜圈
                                                   EPDM O型圈，盖板和
                                                   镀锌钢8.8制螺栓
         顶部和底部轴承    钢 permaglide P10 外有
                                  聚四氟乙烯涂层