<table class="ke-zeroborder"> <tbody> <tr> <td class="de-td1">品牌</td> <td>其他</td> <td class="de-td1">型号</td> <td>GYD20-16/A</td> </tr> <tr> <td class="de-td1">类型</td> <td>机械压力开关</td> <td class="de-td1">额定电压</td> <td>380（V） </td> </tr> <tr> <td class="de-td1">额定电流</td> <td>16（A） </td> <td class="de-td1">机械寿命</td> <td>-（万次） </td> </tr> <tr> <td class="de-td1">最大工作压力</td> <td>0.7M（Pa） </td> <td class="de-td1">产品认证</td> <td>-</td> </tr> </tbody> </table> <div id="de-description-detail" class="de-description-detail fd-editor"> <div id="desc-lazyload-container" data-url="http://laputa.china.alibaba.com/offer/ajax/OfferDesc.do" data-enable="true"> <p style="line-height:150%;margin:0px 5px;"><strong><span style="color:#ff0000;">【低价批发】</span>GYD20自动压力开关&nbsp;</strong></p> <p style="line-height:150%;margin:0px 5px;">&nbsp;</p> <div> <p><span style="font-size:x-small;"><strong>一、工作原理</strong><br /> 　　当电机运转后产生的压力直入开关,在受感膜片作用下,产生连锁反应,使动、静触头断开,切断电源,电机停止,此时压力达到预定限值。反之,压力下降时,动静触头闭合,电源接通,电机自动运转,压力又上升,这样周而复始工作,实现气压自动控制.<br /> <strong>二、适用范围及特点</strong><br /> 　　　GYD系列气压自动开关,适用于装截电动机功率5.5KW及以下的微型空气压缩机,作控制电动机的起动、运转和停止之用。该开关与磁力起动器或其他合适的继电器联接后，也可适用于排气量1m3/min及以下的微型空气压缩机。<br /> 　　气压自动开关装上空压机配套使用后，可以节省人力，节约耗电，延长空压机及电动机的寿命。<br /> <strong>三、产品型号代表</strong><br /> </span></p> <p></p> <table style="width:100%;" border="1" cellspacing="0" cellpadding="0"> <tbody> <tr> <td><span style="font-size:x-small;"><img style="visibility:visible;" border="0" alt="" src="http://www.em39.com/UploadFiles/200961485636664.jpg" /></span></td> </tr> </tbody> </table> <p></p> <strong>&nbsp;</strong> <p><strong><br /> <span style="font-size:x-small;">四、主要技术指标和有关参数</span></strong></p> <br /> <p></p> <table style="width:100%;" class="ke-zeroborder" border="0" cellspacing="1" cellpadding="0" bgcolor="#999999"> <tbody> <tr valign="center" align="middle" bgcolor="#ffffff"> <td height="20" width="11%"><span style="font-size:x-small;">性能<br /> 数据<br /> 型号</span></td> <td height="20" width="10%"> <div><span style="font-size:x-small;">额定电流<br /> （A）</span></div> </td> <td height="20" width="16%"><span style="font-size:x-small;">额定电压<br /> （A）</span></td> <td height="20" width="12%"><span style="font-size:x-small;">额定电压<br /> （Mpa）</span></td> <td height="20" width="13%"><span style="font-size:x-small;">压力调节范围<br /> （Mpa）</span></td> <td height="20" width="21%"><span style="font-size:x-small;">压里差<br /> （Mpa）</span></td> <td height="20" width="8%"><span style="font-size:x-small;">进气接头螺丝</span></td> <td height="20" width="9%"><span style="font-size:x-small;">排气接头螺丝</span></td> </tr> <tr valign="center" align="middle" bgcolor="#ffffff"> <td height="20"><span style="font-size:x-small;">GYD20-16/A</span></td> <td height="20"><span style="font-size:x-small;">16</span></td> <td height="20"><span style="font-size:x-small;">380</span></td> <td height="20"><span style="font-size:x-small;">0.7</span></td> <td height="20"><span style="font-size:x-small;">0.3-0.7</span></td> <td height="20"><span style="font-size:x-small;">0.3±0.05</span></td> <td height="20"><span style="font-size:x-small;">G3/8”</span></td> <td height="20"><span style="font-size:x-small;">M10x1</span></td> </tr> <tr valign="center" align="middle" bgcolor="#ffffff"> <td height="20"><span style="font-size:x-small;">GYD20-16/B</span></td> <td height="20"><span style="font-size:x-small;">16</span></td> <td height="20"><span style="font-size:x-small;">380</span></td> <td height="20"><span style="font-size:x-small;">1.0</span></td> <td height="20"><span style="font-size:x-small;">0.4-1.0</span></td> <td height="20"><span style="font-size:x-small;">0.4±0.05</span></td> <td height="20"><span style="font-size:x-small;">G3/8”</span></td> <td height="20"><span style="font-size:x-small;">M10x1</span></td> </tr> <tr valign="center" align="middle" bgcolor="#ffffff"> <td height="20"><span style="font-size:x-small;">GYD20-16/C</span></td> <td height="20"><span style="font-size:x-small;">16</span></td> <td height="20"><span style="font-size:x-small;">380</span></td> <td height="20"><span style="font-size:x-small;">1.5</span></td> <td height="20"><span style="font-size:x-small;">0.6-1.5</span></td> <td height="20"><span style="font-size:x-small;">0.5±1.0</span></td> <td height="20"><span style="font-size:x-small;">G3/8”</span></td> <td height="20"><span style="font-size:x-small;">M10x1</span></td> </tr> <tr valign="center" align="middle" bgcolor="#ffffff"> <td height="20"><span style="font-size:x-small;">GYD20-2</span></td> <td height="20"><span style="font-size:x-small;">20</span></td> <td height="20"><span style="font-size:x-small;">380</span></td> <td height="20"><span style="font-size:x-small;">1.0</span></td> <td height="20"><span style="font-size:x-small;">0.4-1.0</span></td> <td height="20"><span style="font-size:x-small;">0.3±0.05</span></td> <td height="20"><span style="font-size:x-small;">G3/8”</span></td> <td height="20"><span style="font-size:x-small;">M10x1</span></td> </tr> </tbody> </table> <p></p> <p><br /> <span style="font-size:x-small;"><strong>五、安装使用</strong><br /> 　　1、进气接头接泵体，放空阀接管路。<br /> 　　2、定期检查触头，如发现有积碳、烧毛、需及时处理。<br /> 　　3、调试：用户需要调节额定压力时，可用螺丝刀调节，两边弹簧的压力必须一致，否则，开关不能正常工作。开机后，以压力表指数为准。本开关对电功无保护功能，建议使用电机保护装置。<br /> </span></p> </div> </div> </div>