<table class="ke-zeroborder" style="width:100%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td align="left" width="84%" height="30"><span class="STYLE6"><strong><span style="font-size:medium;color:#cc0000;">Y43H蒸气减压阀</span></strong></span></td>
<td align="left" width="16%"> </td>
</tr>
<tr>
<td align="left" colspan="2" height="13"> <span style="font-family:Verdana;"><strong><span style="color:#ff0000;">结构特点和用处</span></strong><br />
<br />
本系列减压阀属于先导活塞式减压阀。由主阀和导阀两部分组成。主阀主要由阀座、主阀盘、活塞、弹簧等零件组成。导阀主要由阀座、阀瓣、膜片、弹簧、调节弹簧等零件组成。本产品在普通减压阀基础上作了很大改进，加大了活塞面积，改变了节流结构。改变了密封形式，加大了过流面积等等，从而在提高灵敏度、流量、寿命等方面大大改善了性能。本产品主要用于蒸汽管路，适用于流量大流量变化大，进口压力变化大的蒸汽管路。</span></td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="lan" height="25"><strong><span style="color:#ff0000;">主要技术参数和性能指标</span><br />
</strong></td>
</tr>
</tbody>
</table>
<table class="wenzi-size" style="width:600px;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr align="middle" bgcolor="#ffffff">
<td width="28%" height="20">公称压力(Mpa)</td>
<td width="13%" height="20">1.6</td>
<td width="13%" bgcolor="#ffffff" height="20">2.5</td>
<td width="11%" height="20">4.0</td>
<td width="11%" height="20">6.4</td>
<td width="13%" height="20">10.0</td>
<td width="11%" height="20">16.0</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">壳体试验压力(Mpa)*</td>
<td height="20">2.4</td>
<td height="20">3.75</td>
<td height="20">6.0</td>
<td height="20">9.6</td>
<td height="20">15.0</td>
<td height="20">24</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">密封试验压力(Mpa)</td>
<td height="20">1.6</td>
<td height="20">2.5</td>
<td height="20">4.0</td>
<td height="20">6.4</td>
<td height="20">10.0</td>
<td height="20">16.0</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">最高进口压力(Mpa)</td>
<td height="20">1.6</td>
<td height="20">2.5</td>
<td height="20">4.0</td>
<td height="20">6.4</td>
<td height="20">10.0</td>
<td height="20">16.0</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">出口压力范围(Mpa)</td>
<td height="20">0.04-1.0</td>
<td height="20">0.05-1.6</td>
<td height="20">0.08-2.5</td>
<td height="20">0.2-3.5</td>
<td height="20">0.5-3.5</td>
<td height="20">0.5-4.5</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">压力特性偏差(Mpa)△P2P</td>
<td colspan="6" height="20">GB12246-1989</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">流量特性偏差(Mpa)P2G</td>
<td colspan="6" height="20">GB12246-1989</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">最小压差(Mpa)</td>
<td height="20">0.07</td>
<td height="20">0.1</td>
<td height="20">0.15</td>
<td height="20">0.4</td>
<td height="20">0.5</td>
<td height="20">0.8</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">渗漏量</td>
<td colspan="6" height="20">GB12245-1989</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="wenzi-size" height="20">*：壳体试验不包括膜片、顶盖<br />
</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="lan" width="4%" height="14"></td>
<td class="lan" height="25"><strong><span style="color:#ff0000;">主要零件材料</span></strong></td>
</tr>
</tbody>
</table>
<table class="wenzi-size" style="width:600px;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr align="middle" bgcolor="#ffffff">
<td width="54%" height="20">零件名称</td>
<td width="46%" height="20">零件材料</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">阀体 阀盖 底盖</td>
<td height="20">WCB</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">阀座 阀瓣</td>
<td height="20">2Cr13</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">缸套 活塞</td>
<td height="20">铝铁青铜</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">膜片</td>
<td height="20">1Cr18Ni9</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">活塞环</td>
<td height="20">合金铸铁/对位聚苯</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">导阀座 导阀杆</td>
<td height="20">2Cr13</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">主阀弹簧</td>
<td height="20">50CrVA</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">导阀主弹簧</td>
<td height="20">50CrVA</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">调节弹簧</td>
<td height="20">60Si2Mn</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="lan" colspan="3" height="5"> </td>
</tr>
<tr>
<td class="lan" width="4%" height="14"></td>
<td class="lan" width="86%" height="25"><strong><span style="color:#f70909;">流量系数(Cv)</span></strong></td>
<td class="lan" width="10%"> </td>
</tr>
</tbody>
</table>
<table class="wenzi-size" style="width:600px;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr align="middle" bgcolor="#ffffff">
<td height="20">DN</td>
<td height="20">50</td>
<td height="20">65</td>
<td height="20">80</td>
<td height="20">100</td>
<td height="20">125</td>
<td height="20">150</td>
<td height="20">200</td>
<td height="20">250</td>
<td height="20">300</td>
<td height="20">350</td>
<td height="20">400</td>
<td height="20">500</td>
</tr>
<tr align="middle" bgcolor="#ffffff">
<td height="20">Cv</td>
<td height="20">1</td>
<td height="20">2.5</td>
<td height="20">4</td>
<td height="20">6.5</td>
<td height="20">9</td>
<td height="20">16</td>
<td height="20">25</td>
<td height="20">36</td>
<td height="20">64</td>
<td height="20">100</td>
<td height="20">140</td>
<td height="20">250</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="lan" colspan="3" height="5"> </td>
</tr>
<tr>
<td class="lan" width="4%" height="14"></td>
<td class="lan" width="86%" height="25"><strong><span style="color:#ff0000;">外形尺寸(PN1.6-4.0) <span class="wenzi-size">单位：mm</span></span></strong></td>
<td class="lan" width="10%"> </td>
</tr>
</tbody>
</table>
<table class="wenzi-size" style="width:600px;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr align="middle" bgcolor="#ffffff">
<td width="19%" rowspan="3">公称通径DN</td>
<td colspan="4" height="20">外 形 尺 寸</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" colspan="2" height="20">L</td>
<td width="21%" bgcolor="#ffffff" rowspan="2">H</td>
<td width="21%" bgcolor="#ffffff" rowspan="2">Hl</td>
</tr>
<tr align="middle">
<td width="20%" bgcolor="#ffffff" height="20">1.6/2.5MPa</td>
<td width="19%" bgcolor="#ffffff" height="20">4.0MPa</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">15</td>
<td bgcolor="#ffffff" height="20">160</td>
<td bgcolor="#ffffff" height="20">180</td>
<td bgcolor="#ffffff" height="20">265</td>
<td bgcolor="#ffffff" height="20">85</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">20</td>
<td bgcolor="#ffffff" height="20">160</td>
<td bgcolor="#ffffff" height="20">180</td>
<td bgcolor="#ffffff" height="20">265</td>
<td bgcolor="#ffffff" height="20">85</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">25</td>
<td bgcolor="#ffffff" height="20">180</td>
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" height="20">280</td>
<td bgcolor="#ffffff" height="20">95</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">32</td>
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" height="20">220</td>
<td bgcolor="#ffffff" height="20">280</td>
<td bgcolor="#ffffff" height="20">95</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">40</td>
<td bgcolor="#ffffff" height="20">220</td>
<td bgcolor="#ffffff" height="20">240</td>
<td bgcolor="#ffffff" height="20">290</td>
<td bgcolor="#ffffff" height="20">105</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">50</td>
<td bgcolor="#ffffff" height="20">250</td>
<td bgcolor="#ffffff" height="20">270</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">130</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">65</td>
<td bgcolor="#ffffff" height="20">280</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">315</td>
<td bgcolor="#ffffff" height="20">145</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">80</td>
<td bgcolor="#ffffff" height="20">310</td>
<td bgcolor="#ffffff" height="20">330</td>
<td bgcolor="#ffffff" height="20">330</td>
<td bgcolor="#ffffff" height="20">170</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">100</td>
<td bgcolor="#ffffff" height="20">350</td>
<td bgcolor="#ffffff" height="20">380</td>
<td bgcolor="#ffffff" height="20">405</td>
<td bgcolor="#ffffff" height="20">200</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">125</td>
<td bgcolor="#ffffff" height="20">400</td>
<td bgcolor="#ffffff" height="20">450</td>
<td bgcolor="#ffffff" height="20">450</td>
<td bgcolor="#ffffff" height="20">225</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">150</td>
<td bgcolor="#ffffff" height="20">450</td>
<td bgcolor="#ffffff" height="20">500</td>
<td bgcolor="#ffffff" height="20">485</td>
<td bgcolor="#ffffff" height="20">265</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" height="20">500</td>
<td bgcolor="#ffffff" height="20">550</td>
<td bgcolor="#ffffff" height="20">570</td>
<td bgcolor="#ffffff" height="20">290</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">250</td>
<td bgcolor="#ffffff" colspan="2" height="20">650</td>
<td bgcolor="#ffffff" height="20">640</td>
<td bgcolor="#ffffff" height="20">325</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" colspan="2" height="20">800</td>
<td bgcolor="#ffffff" height="20">740</td>
<td bgcolor="#ffffff" height="20">360</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">350</td>
<td bgcolor="#ffffff" colspan="2" height="20">850</td>
<td bgcolor="#ffffff" height="20">810</td>
<td bgcolor="#ffffff" height="20">395</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">400</td>
<td bgcolor="#ffffff" colspan="2" height="20">900</td>
<td bgcolor="#ffffff" height="20">950</td>
<td bgcolor="#ffffff" height="20">430</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">500</td>
<td bgcolor="#ffffff" colspan="2" height="20">950</td>
<td bgcolor="#ffffff" height="20">1080</td>
<td bgcolor="#ffffff" height="20">500</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td class="lan" colspan="3" height="5"> </td>
</tr>
<tr>
<td class="lan" width="4%" height="14"></td>
<td class="lan" width="86%" height="25">
<p><strong><span style="color:#ff0000;">外形尺寸(PN6.4-16.0</span> <span class="wenzi-size">单位：mm</span></strong></p>
</td>
<td class="lan" width="10%"> </td>
</tr>
</tbody>
</table>
<table class="wenzi-size" style="width:600px;" cellspacing="0" cellpadding="0" border="1">
<tbody>
<tr align="middle" bgcolor="#ffffff">
<td width="21%" rowspan="3">公称通径DN</td>
<td colspan="4" height="20">外 形 尺 寸</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" colspan="2" height="20">L</td>
<td width="20%" bgcolor="#ffffff" rowspan="2">H</td>
<td width="19%" bgcolor="#ffffff" rowspan="2">Hl</td>
</tr>
<tr align="middle">
<td width="20%" bgcolor="#ffffff" height="20">6.4MPa</td>
<td width="20%" bgcolor="#ffffff" height="20">10.0/16.0MPa</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="21">15</td>
<td bgcolor="#ffffff" height="21">180</td>
<td bgcolor="#ffffff" height="21">180</td>
<td bgcolor="#ffffff" height="21">280</td>
<td bgcolor="#ffffff" height="21">100</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">20</td>
<td bgcolor="#ffffff" height="20">180</td>
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" height="20">280</td>
<td bgcolor="#ffffff" height="20">100</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">25</td>
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" height="20">220</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">115</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">32</td>
<td bgcolor="#ffffff" height="20">220</td>
<td bgcolor="#ffffff" height="20">230</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">115</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">40</td>
<td bgcolor="#ffffff" height="20">240</td>
<td bgcolor="#ffffff" height="20">240</td>
<td bgcolor="#ffffff" height="20">315</td>
<td bgcolor="#ffffff" height="20">130</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">50</td>
<td bgcolor="#ffffff" height="20">270</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">340</td>
<td bgcolor="#ffffff" height="20">135</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">65</td>
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" height="20">340</td>
<td bgcolor="#ffffff" height="20">355</td>
<td bgcolor="#ffffff" height="20">150</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">80</td>
<td bgcolor="#ffffff" height="20">330</td>
<td bgcolor="#ffffff" height="20">360</td>
<td bgcolor="#ffffff" height="20">370</td>
<td bgcolor="#ffffff" height="20">175</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">100</td>
<td bgcolor="#ffffff" colspan="2" height="20">380</td>
<td bgcolor="#ffffff" height="20">450</td>
<td bgcolor="#ffffff" height="20">205</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">125</td>
<td bgcolor="#ffffff" colspan="2" height="20">450</td>
<td bgcolor="#ffffff" height="20">510</td>
<td bgcolor="#ffffff" height="20">235</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">150</td>
<td bgcolor="#ffffff" colspan="2" height="20">500</td>
<td bgcolor="#ffffff" height="20">555</td>
<td bgcolor="#ffffff" height="20">275</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">200</td>
<td bgcolor="#ffffff" colspan="2" height="20">550</td>
<td bgcolor="#ffffff" height="20">640</td>
<td bgcolor="#ffffff" height="20">300</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">250</td>
<td bgcolor="#ffffff" colspan="2" height="20">650</td>
<td bgcolor="#ffffff" height="20">720</td>
<td bgcolor="#ffffff" height="20">335</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">300</td>
<td bgcolor="#ffffff" colspan="2" height="20">800</td>
<td bgcolor="#ffffff" height="20">830</td>
<td bgcolor="#ffffff" height="20">375</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">350</td>
<td bgcolor="#ffffff" colspan="2" height="20">850</td>
<td bgcolor="#ffffff" height="20">880</td>
<td bgcolor="#ffffff" height="20">410</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">400</td>
<td bgcolor="#ffffff" colspan="2" height="20">900</td>
<td bgcolor="#ffffff" height="20">1020</td>
<td bgcolor="#ffffff" height="20">445</td>
</tr>
<tr align="middle">
<td bgcolor="#ffffff" height="20">500</td>
<td bgcolor="#ffffff" height="20">950</td>
<td bgcolor="#ffffff" height="20"> </td>
<td bgcolor="#ffffff" height="20">1080</td>
<td bgcolor="#ffffff" height="20">515</td>
</tr>
</tbody>
</table>
<table class="ke-zeroborder" style="width:96%;" cellspacing="0" cellpadding="0" border="0">
<tbody>
<tr>
<td height="8"> </td>
</tr>
</tbody>
</table>
