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Z42H,Z42Y,Z542H,Z542Y楔式双闸板闸阀产品概述：
Z42H,Z42Y,Z542H,Z542Y楔式双闸板闸阀具有弹性座封座封闸阀的优点之外．并可以较直观显阀门开度．启闭迅速可靠，故常应用于消防及工业系统。一般安装于距地面较高位置。
Z42H,Z42Y,Z542H,Z542Y楔式双闸板闸阀主要性能规范
| 型号Type | 公称压力PN（MPa）Nominal pressure | 公称压力PN（MPa）Nominal pressure | 适用介质Media avaliable | 工作温度Working Temperature（℃） | ||
| 密封（液）Seal | 低压密封（气）Low-voltage Seal | 强度 Intensity | ||||
| Z42H-16C | 1.6 | 1.8 | 0.6 | 2.4 | 水、蒸汽等Water、steam，etc | ≤300 |
| Z42H-25 | 2.5 | 2.8 | 0.6 | 3.8 | ||
主要零件材料
| 零件名称Part name | 阀体、阀盖Body、Bonnet | 阀杆Stem | 阀板Disc | 阀杆螺母Stem nut | 填料Packing | 手轮Hand wheel |
| 材料Material | 碳钢Carbon steel | 2Cr13 | 优质碳钢High-grade carbon steel | 铝青铜Al bronze | 石墨石棉盘根Graphie asbestos coils | 球墨铸铁Nodular cast iron |
| 优质碳钢High-grade carbon steel |
主要尺寸和重量（mm）
| 公称通径DN Nominal Diameter | 主要外形尺寸和连接尺寸（mm）Main extemal and connecting dimensions | 重量Weight（Kg） | ||||||||||
| D0 | L | D | D1 | D2 | D8 | b | Z-￠d | H | H1 | D0 | ||
| Z42H-16C | ||||||||||||
| 500 | - | 700 | 705 | 650 | 608 | - | 44 | - | 2676 | - | - | |
| 600 | - | 800 | 840 | 770 | 718 | - | 48 | - | - | - | - | |
| 700 | - | 900 | 910 | 840 | 788 | - | 50 | - | - | - | - | |
| Z42H-25 | ||||||||||||
| 50 | 50 | 250 | 160 | 125 | 100 | - | 20 | 400 | 470 | 200 | 25 | |
| 65 | 50 | 265 | 180 | 145 | 120 | - | 22 | 400 | 470 | 200 | 27 | |
| 80 | 80 | 280 | 195 | 160 | 135 | - | 22 | 469 | 578 | 240 | 37 | |
| 100 | 80 | 300 | 230 | 190 | 160 | - | 24 | 469 | 578 | 240 | 46 | |
| 125 | 100 | 325 | 270 | 220 | 188 | - | 28 | 555 | 686 | 280 | 76 | |
| 150 | 100 | 350 | 300 | 250 | 218 | - | 30 | 555 | 686 | 280 | 83 | |
| 200 | 150 | 400 | 360 | 310 | 278 | - | 34 | 713 | 898 | 320 | 130 | |
| 250 | 200 | 450 | 425 | 370 | 332 | - | 36 | 872 | 1114 | 360 | 202 | |
| 300 | 300 | 500 | 485 | 430 | 390 | - | 40 | 1188 | 1508 | 720 | 511 | |
| 400 | 300 | 600 | 610 | 550 | 505 | - | 48 | 1188 | 1508 | 720 | 898 | |