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产品名称:对夹蝶型止回阀
   
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<DIV>
<TABLE border=0 cellSpacing=0 cellPadding=0 width=100%>
  <TBODY>
<TR>
<TD class=chengtai height=93 vAlign=center align=middle>Summary:<br />
  Check valve installed in the pipeline system, its main effect is to prevent the backflow medium, check valve is a media pressure on opening and closing of the automatic valve. Previous domestic widely adopted is H44 type flange connection swing check valves and H41 type flange connection movements of check valve, this kind of traditional check valve product stupid big, fluid resistance is big, the valve closed water hammer pressure is high, installation, maintenance is difficult, to use a shorter life span.<br />
  Our company for the traditional structure check valve, the existing problems of the API standard in the United States and Germany DIN standards as the basis, combined with my company for many years in the valve test research, development, design, manufacture, and other aspects of the rich experience, developed the H76 type double disc to clip a swing check valve and H71 type wafer movements of check valve series products, the petrochemical, metallurgical, power, light industry, food industry etc of the enterprise and equipment supporting manufacturers of years of use, the effect is good, well received by users.</TD></TR>
<TR>
<TD height=43 vAlign=center width=314 align=middle><FONT size=2></FONT></TD>
</TR>
<TR>
<TD class=chengtai height=133 vAlign=center align=middle>Structure features:<br />
  1, structure length short, its structure length only the traditional flange check valve 1/4 to 1/8;<br />
  2, small volume, light weight, the weight only the traditional flange check valve 1/4 to 1/20;<br />
  3, close the valve flap of fast, water hammer pressure small;<br />
  4, horizontal line or vertical pipe all can use, installation is convenient;<br />
  5, port unobstructed, fluid resistance small;<br />
  6, action quick, sealed performance is good;<br />
  7, disc trip short, closing valves wallop is small;<br />
  8, the structure compact, simple, beautiful shape;<br />
  9, long service life, high reliability.</TD></TR>
<TR>
<TD height=0 vAlign=center align=middle>&nbsp;</TD></TR>
<TR>
<TD height=29 vAlign=center align=middle><FONT size=2></FONT></TD></TR>
<TR>
<TD height=29 vAlign=center align=middle>&nbsp;</TD></TR>
<TR>
  <TD height=60 vAlign=center align=middle>
  <TABLE width=850 border=1 cellPadding=0 cellSpacing=0>
  <TBODY>
  <TR>
  <TD width=29 align=middle vAlign=center class=chengtai><FONT size=2>&nbsp;</FONT></TD>
  <TD width=76 align=middle vAlign=center class=chengtai><font size=2>Nominal pressure</font></TD>
  <TD class=chengtai vAlign=center colSpan=7 align=middle><FONT size=2>PN1.0MPa 、 PN1.6MPa、 PN2.5MPa、 PN4.0MPa、 PN6.4MPa 、 PN10.0MPa </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>&nbsp;</FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>model </FONT></TD>
  <TD width=68 align=middle vAlign=center class=chengtai><FONT size=2>H76H-C </FONT></TD>
  <TD width=78 align=middle vAlign=center class=chengtai><FONT size=2>H76W-P </FONT></TD>
  <TD width=54 align=middle vAlign=center class=chengtai><FONT size=2>H76W-P8 </FONT></TD>
  <TD width=63 align=middle vAlign=center class=chengtai><FONT size=2>H76W-P3 </FONT></TD>
  <TD width=109 align=middle vAlign=center class=chengtai><FONT size=2>H76W-R </FONT></TD>
  <TD width=82 align=middle vAlign=center class=chengtai><FONT size=2>H76W-R8 </FONT></TD>
  <TD width=88 align=middle vAlign=center class=chengtai><FONT size=2>H76W-R3 </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center rowSpan=4 align=middle>Nominal pressure main<br />
    parts<br />
    materials</TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>Valve body</FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>WCB(A105) </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>ZG1Cr18Ni9Ti </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8(304) </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8(304L) </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>ZG1Cr18Ni12Mo2Ti </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8M(316) </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF3M(316L) </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>disc </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF3 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8M </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF8M </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>CF3M </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>Valve spindle</FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>2Cr13 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>1Cr18Ni9Ti </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr18Ni9 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>00Cr19Ni10 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>1Cr18Ni12Mo2Ti </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr17Ni12Mo2 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>00Cr17Ni14Mo2 </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>Play the spring</FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr18Ni9 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr18Ni9 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr18Ni9 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>00Cr19Ni10 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr17Ni12Mo2 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>0Cr17Ni12Mo2 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>00Cr17Ni14Mo2 </FONT></TD></TR>
  <TR>
  <TD class=chengtai vAlign=center rowSpan=2 align=middle><p>apply</p>
    <p>condition</p></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>Applicable medium</FONT></TD>
  <TD class=chengtai vAlign=center align=middle>Water,<br />
    Steam,<br />
    Oil etc</TD>
  <TD class=chengtai vAlign=center colSpan=2 align=middle><FONT size=2>Nitric acid and corrosive medium</FONT></TD>
  <TD class=chengtai vAlign=center align=middle>Strong oxidizing<br />
    medium</TD>
  <TD class=chengtai vAlign=center colSpan=2 align=middle><FONT size=2>Acetic acid, corrosive medium</FONT></TD>
  <TD class=chengtai vAlign=center align=middle>Urea etc<br />
    Corrosive medium</TD></TR>
  <TR>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>Applicable temperature (℃)</FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>-29~425 </FONT></TD>
  <TD class=chengtai vAlign=center colSpan=2 align=middle><FONT size=2>-196~540 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>-196~425 </FONT></TD>
  <TD class=chengtai vAlign=center colSpan=2 align=middle><FONT size=2>-196~540 </FONT></TD>
  <TD class=chengtai vAlign=center align=middle><FONT size=2>-196~455 </FONT></TD></TR></TBODY></TABLE></TD></TR>
<TR>
  <TD height=60 vAlign=center align=middle><table cellspacing=0 cellpadding=0>
    <tr>
      <td width=850 height=60 colspan=2 align=middle valign=center></td>
    </tr>
    <tr>
      <td valign=center colspan=2 align=middle>Main shape dimension:<br />
        <table border=1 cellspacing=0 cellpadding=0 width=100%>
          <tbody>
            <tr>
              <td valign=center rowspan=3 align=middle>Pressure level</td>
              <td valign=center colspan=2 align=middle>caliber</td>
              <td valign=center colspan=4 align=middle>口径(mm) </td>
              <td valign=center rowspan=3 align=middle>weight(kg) </td>
              <td valign=center colspan=6 align=middle><p>Piping flange (reference)</p></td>
            </tr>
            <tr>
              <td valign=center rowspan=2 align=middle>NPS </td>
              <td valign=center rowspan=2 align=middle>DN </td>
              <td valign=center rowspan=2 align=middle>L </td>
              <td valign=center rowspan=2 align=middle>D </td>
              <td valign=center rowspan=2 align=middle>D 3 </td>
              <td valign=center rowspan=2 align=middle>D 2 </td>
              <td valign=center rowspan=2 align=middle>Bolt hole in the<br />
                Heart circle diameter D 1 </td>
              <td valign=center rowspan=2 align=middle>Bolt quantity</td>
              <td valign=center colspan=2 align=middle>Bolt quantityd </td>
              <td valign=center colspan=2 align=middle>Bolt lengthL 1 </td>
            </tr>
            <tr>
              <td valign=center align=middle>in </td>
              <td valign=center align=middle>mm </td>
              <td valign=center align=middle>RF </td>
              <td valign=center align=middle>RJ </td>
            </tr>
            <tr>
              <td valign=center rowspan=20 align=middle>Class 150 <br />
                PN2.0MPa </td>
              <td valign=center align=middle>2 </td>
              <td valign=center align=middle>50 </td>
              <td valign=center align=middle>60 </td>
              <td valign=center align=middle>103 </td>
              <td valign=center align=middle>56 </td>
              <td valign=center align=middle>51 </td>
              <td valign=center align=middle>2 </td>
              <td valign=center align=middle>120.5 </td>
              <td valign=center align=middle>4 </td>
              <td valign=center align=middle>5/8 </td>
              <td valign=center align=middle>M16 </td>
              <td valign=center align=middle>140 </td>
              <td valign=center align=middle>155 </td>
            </tr>
            <tr>
              <td valign=center align=middle>2 1 /2 </td>
              <td valign=center align=middle>65 </td>
              <td valign=center align=middle>67 </td>
              <td valign=center align=middle>122 </td>
              <td valign=center align=middle>73 </td>
              <td valign=center align=middle>65 </td>
              <td valign=center align=middle>3 </td>
              <td valign=center align=middle>139.5 </td>
              <td valign=center align=middle>4 </td>
              <td valign=center align=middle>5/8 </td>
              <td valign=center align=middle>M16 </td>
              <td valign=center align=middle>150 </td>
              <td valign=center align=middle>165 </td>
            </tr>
            <tr>
              <td valign=center align=middle>3 </td>
              <td valign=center align=middle>80 </td>
              <td valign=center align=middle>73 </td>
              <td valign=center align=middle>135 </td>
              <td valign=center align=middle>88 </td>
              <td valign=center align=middle>80 </td>
              <td valign=center align=middle>4 </td>
              <td valign=center align=middle>152.5 </td>
              <td valign=center align=middle>4 </td>
              <td valign=center align=middle>5/8 </td>
              <td valign=center align=middle>M16 </td>
              <td valign=center align=middle>160 </td>
              <td valign=center align=middle>175 </td>
            </tr>
            <tr>
              <td valign=center align=middle>4 </td>
              <td valign=center align=middle>100 </td>
              <td valign=center align=middle>73 </td>
              <td valign=center align=middle>173 </td>
              <td valign=center align=middle>108 </td>
              <td valign=center align=middle>102 </td>
              <td valign=center align=middle>6 </td>
              <td valign=center align=middle>190.5 </td>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>5/8 </td>
              <td valign=center align=middle>M16 </td>
              <td valign=center align=middle>170 </td>
              <td valign=center align=middle>185 </td>
            </tr>
            <tr>
              <td valign=center align=middle>5 </td>
              <td valign=center align=middle>125 </td>
              <td valign=center align=middle>86 </td>
              <td valign=center align=middle>195 </td>
              <td valign=center align=middle>132 </td>
              <td valign=center align=middle>127 </td>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>216.0 </td>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>190 </td>
              <td valign=center align=middle>205 </td>
            </tr>
            <tr>
              <td valign=center align=middle>6 </td>
              <td valign=center align=middle>150 </td>
              <td valign=center align=middle>98 </td>
              <td valign=center align=middle>220 </td>
              <td valign=center align=middle>160 </td>
              <td valign=center align=middle>152 </td>
              <td valign=center align=middle>13 </td>
              <td valign=center align=middle>241.5 </td>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>205 </td>
              <td valign=center align=middle>220 </td>
            </tr>
            <tr>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>200 </td>
              <td valign=center align=middle>127 </td>
              <td valign=center align=middle>277 </td>
              <td valign=center align=middle>210 </td>
              <td valign=center align=middle>203 </td>
              <td valign=center align=middle>25 </td>
              <td valign=center align=middle>298.5 </td>
              <td valign=center align=middle>8 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>240 </td>
              <td valign=center align=middle>255 </td>
            </tr>
            <tr>
              <td valign=center align=middle>10 </td>
              <td valign=center align=middle>250 </td>
              <td valign=center align=middle>146 </td>
              <td valign=center align=middle>337 </td>
              <td valign=center align=middle>266 </td>
              <td valign=center align=middle>254 </td>
              <td valign=center align=middle>39 </td>
              <td valign=center align=middle>362.0 </td>
              <td valign=center align=middle>12 </td>
              <td valign=center align=middle>7/8 </td>
              <td valign=center align=middle>M24 </td>
              <td valign=center align=middle>270 </td>
              <td valign=center align=middle>285 </td>
            </tr>
            <tr>
              <td valign=center align=middle>12 </td>
              <td valign=center align=middle>300 </td>
              <td valign=center align=middle>181 </td>
              <td valign=center align=middle>407 </td>
              <td valign=center align=middle>310 </td>
              <td valign=center align=middle>305 </td>
              <td valign=center align=middle>54 </td>
              <td valign=center align=middle>432.0 </td>
              <td valign=center align=middle>12 </td>
              <td valign=center align=middle>7/8 </td>
              <td valign=center align=middle>M24 </td>
              <td valign=center align=middle>310 </td>
              <td valign=center align=middle>325 </td>
            </tr>
            <tr>
              <td valign=center align=middle>14 </td>
              <td valign=center align=middle>350 </td>
              <td valign=center align=middle>184 </td>
              <td valign=center align=middle>448 </td>
              <td valign=center align=middle>355 </td>
              <td valign=center align=middle>350 </td>
              <td valign=center align=middle>80 </td>
              <td valign=center align=middle>476.0 </td>
              <td valign=center align=middle>12 </td>
              <td valign=center align=middle>1 </td>
              <td valign=center align=middle>M27 </td>
              <td valign=center align=middle>325 </td>
              <td valign=center align=middle>340 </td>
            </tr>
            <tr>
              <td valign=center align=middle>16 </td>
              <td valign=center align=middle>400 </td>
              <td valign=center align=middle>191 </td>
              <td valign=center align=middle>512 </td>
              <td valign=center align=middle>405 </td>
              <td valign=center align=middle>400 </td>
              <td valign=center align=middle>117 </td>
              <td valign=center align=middle>540.0 </td>
              <td valign=center align=middle>16 </td>
              <td valign=center align=middle>1 </td>
              <td valign=center align=middle>M27 </td>
              <td valign=center align=middle>340 </td>
              <td valign=center align=middle>355 </td>
            </tr>
            <tr>
              <td valign=center align=middle>18 </td>
              <td valign=center align=middle>450 </td>
              <td valign=center align=middle>203 </td>
              <td valign=center align=middle>547 </td>
              <td valign=center align=middle>455 </td>
              <td valign=center align=middle>450 </td>
              <td valign=center align=middle>138 </td>
              <td valign=center align=middle>578.0 </td>
              <td valign=center align=middle>16 </td>
              <td valign=center align=middle>1 1 /8 </td>
              <td valign=center align=middle>M30 </td>
              <td valign=center align=middle>365 </td>
              <td valign=center align=middle>380 </td>
            </tr>
            <tr>
              <td valign=center align=middle>20 </td>
              <td valign=center align=middle>500 </td>
              <td valign=center align=middle>219 </td>
              <td valign=center align=middle>604 </td>
              <td valign=center align=middle>505 </td>
              <td valign=center align=middle>500 </td>
              <td valign=center align=middle>163 </td>
              <td valign=center align=middle>635.0 </td>
              <td valign=center align=middle>20 </td>
              <td valign=center align=middle>1 1 /8 </td>
              <td valign=center align=middle>M30 </td>
              <td valign=center align=middle>385 </td>
              <td valign=center align=middle>400 </td>
            </tr>
            <tr>
              <td valign=center align=middle>24 </td>
              <td valign=center align=middle>600 </td>
              <td valign=center align=middle>222 </td>
              <td valign=center align=middle>715 </td>
              <td valign=center align=middle>605 </td>
              <td valign=center align=middle>600 </td>
              <td valign=center align=middle>331 </td>
              <td valign=center align=middle>749.5 </td>
              <td valign=center align=middle>20 </td>
              <td valign=center align=middle>1 1 /4 </td>
              <td valign=center align=middle>M33 </td>
              <td valign=center align=middle>405 </td>
              <td valign=center align=middle>420 </td>
            </tr>
            <tr>
              <td valign=center align=middle>28 </td>
              <td valign=center align=middle>700 </td>
              <td valign=center align=middle>305 </td>
              <td valign=center align=middle>773 </td>
              <td valign=center align=middle>700 </td>
              <td valign=center align=middle>700 </td>
              <td valign=center align=middle>380 </td>
              <td valign=center align=middle>795.5 </td>
              <td valign=center align=middle>40 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>455 </td>
              <td valign=center align=middle>- </td>
            </tr>
            <tr>
              <td valign=center align=middle>30 </td>
              <td valign=center align=middle>750 </td>
              <td valign=center align=middle>305 </td>
              <td valign=center align=middle>824 </td>
              <td valign=center align=middle>750 </td>
              <td valign=center align=middle>746 </td>
              <td valign=center align=middle>425 </td>
              <td valign=center align=middle>846.0 </td>
              <td valign=center align=middle>44 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>455 </td>
              <td valign=center align=middle>- </td>
            </tr>
            <tr>
              <td valign=center align=middle>32 </td>
              <td valign=center align=middle>800 </td>
              <td valign=center align=middle>305 </td>
              <td valign=center align=middle>878 </td>
              <td valign=center align=middle>800 </td>
              <td valign=center align=middle>796 </td>
              <td valign=center align=middle>560 </td>
              <td valign=center align=middle>900.0 </td>
              <td valign=center align=middle>48 </td>
              <td valign=center align=middle>3/4 </td>
              <td valign=center align=middle>M20 </td>
              <td valign=center align=middle>460 </td>
              <td valign=center align=middle>- </td>
            </tr>
            <tr>
              <td valign=center align=middle>36 </td>
              <td valign=center align=middle>900 </td>
              <td valign=center align=middle>368 </td>
              <td valign=center align=middle>983 </td>
              <td valign=center align=middle>910 </td>
              <td valign=center align=middle>898 </td>
              <td valign=center align=middle>640 </td>
              <td valign=center align=middle>1009.5 </td>
              <td valign=center align=middle>44 </td>
              <td valign=center align=middle>7/8 </td>
              <td valign=center align=middle>M24 </td>
              <td valign=center align=middle

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