气动通风蝶阀采用钢板焊接制造，具有结构尺寸短，重量轻，安装方便等特点。该阀驱动力矩小，启闭灵活，操作方便。阀体上设置油密封挡圈，密封副之间无可见间隙，泄漏率小。蝶板与阀体间的膨胀间隙大，能有效防止因热涨冷缩造成的卡死现象。本阀可配备多种驱动装置，如手动装置、蜗轮传动装置、气动装置、电动装置。通风蝶阀广泛用于治金、师化、电力、建材、矿山等工业管线，对介质气体气控制或调节作用。

  主要参数公称压力(MPa)0.05MPa介质温度-30℃～-350℃

  强度试验0.1MPa适用介质冷热风、烟气

  介质流速25m/s泄漏率3%

  主要零件材料零件名称阀体阀板阀轴

  材料碳钢碳钢碳钢、不锈钢

  TD641W气动通风蝶阀主要外形连接尺寸 单位：mmDNDD1LL1L2 n-Фdb

  3004053701207162208210

  3504554201407862408410

  40050547014092427012810

  45057053016099929512810

  500620580160107932512810

  600720680180114038016812

  700820780180124043016812

  800920880200135049016812

  9001040990200145054016814

  100011401090220155059020814

  110012401190220180064020814

  120013401290240190069020814

  130014401390240202076020816

  140015401490260212081024816

  150016401590260222086024816

  160017401690280239098024816

  1700184017902802590103028-2216

  1800194018903002709109628-2216

  1900204019903002826114632-2216

  2000215020903202926119632-2616

  2200236023003403126129636-2616

  2400256025003603326139636-2618

  2600276027003803526149640-2618

  2800296029004003726159640-2618

  3000319031104004098169844-3018

  3200339033104404338179844-3020

  3400359035104404578189848-3020

  3600379037104804780199848-3020

  3800400039104805000209852-3022

  4000421041205205200221052-3022