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name="keyword" type="text" class="Input" size="15"><input name="Submit" type="submit" class="inputbuttom" value="GO"></div></td></tr></form></table></td> </tr> <tr> <td>&nbsp;</td> </tr> </table></td> <td width="1px" bgcolor="#cfcfcf"><img src="../Images/space.gif" width="1" height="1"></td> <td><table width="98%" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td colspan="2"></td> </tr> <tr> <td colspan="2" style="font-size: 16px; color:#0033CC; font-weight:bold;"><img src="/Images/log2.jpg" width="255" height="42"></td> </tr> <tr> <td colspan="2" align="center" style="font-size: 16px; color:#0033CC; font-weight:bold;">VG181-AWWA C504 Butterfly Valve</td> </tr> <tr> <td colspan="2"></td> </tr> <tr> <td height="1" colspan="2" valign="top" bgcolor="#cfcfcf"></td> </tr> <tr> <td width="260" valign="top"><img src="../Images/UpFile/200995114451193.jpg" width="260" align="left" border="0" style="margin: 5px;"></td> <td valign="top"><span style="line-height: 200%;"><FONT face=Verdana> <DIV><EM><STRONG><U>VATAC AWWA C504 Butterfly Valve:</U></STRONG></EM></DIV> <P><STRONG><EM>General</EM></STRONG><BR>Butterfly valves shall be manufactured in accordance with the latest revision of AWWA Standard C504 150B or 250B, shall be suitable for a differential pressure of 150psig or 250 psig, and be certified to NSF Standard 61. Valves shall be comply with the following details:<BR><BR><STRONG><EM>Valve Bodies <BR></EM></STRONG>The body shall be constructed of Ductile Iron ASTM A536 Gr. 65-45-12, with flanged end connections drilled in accordance with ANSI B16.1, Class 125, Class 250, or Mechanical Joint ends. The body wall thickness shall be in strict accordance with AWWA C504.<BR><BR><STRONG><EM>Valve Shafts</EM></STRONG> <BR>The shaft shall be made of ASTM A-564 Type 630. The shaft seals shall be "V" type packing. Shaft seals shall be of a design allowing replacement without removing the valve shaft. No O-ring or "U" cup packing shall be allowed. The bearing shall be a stainless steel backed Teflon material. Bearing load shall not exceed 1/5 of the compressible strength of the bearing or shaft material.</P> <DIV><STRONG><EM>Valve Discs</EM></STRONG></DIV> <DIV>The disc shall utilize an on-center shaft and symmetrical design, cast from Ductile Iron ASTM A536 Gr. 65-45-12. The disc edge shall be stainless steel type 316. Disc shall be retained by pins that extend thought the full diameter of the shaft. The pin material shall be the same as the shaft material. Torque plugs or tangential fasteners shall not be allowed. For valve sizes 3" through 20" the rubber seat shall be of one piece construction, simultaneously molded and bonded directly into the body. The seat material shall be either Buna-N or EPDM rubber. </DIV> <DIV>&nbsp;</DIV> <DIV><EM><STRONG>Valve Actuators</STRONG></EM> </DIV> <DIV>Manual actuators shall be of the traveling nut, self-locking type and shall be designed to hold the valve in any intermediate position between fully open and fully closed without fluttering or creeping. The actuator shall have mechanical stops that will withstand and input torque of 450 ft/lb. against each stop. Manual actuators shall conform to AWWA Standard C504</DIV> <DIV>&nbsp;</DIV> <DIV><STRONG><EM>Sizes Ranges</EM></STRONG>:&nbsp; 2 through 140 inches</DIV> <DIV><STRONG><EM>Standard Body Ends</EM></STRONG>: Flange x flange ends, Mechanical Joint ends, Flange and Mechanical Join ends</DIV> <DIV><STRONG><EM>Standards</EM></STRONG>:&nbsp;To AWWA C504 requirements </DIV> <DIV><STRONG><EM>Pressure Class:</EM></STRONG>&nbsp; AWWA pressure classes 75B, 150B, 250B</DIV> <DIV>&nbsp;</DIV> <DIV><STRONG><EM>Actuation Options:</EM></STRONG> </DIV> <DIV>-AWWA Standard nut, handwheel or chainwheel,&nbsp;Worm gear actuators</DIV> <DIV>- Hydraulic or pneumatic cylinder</DIV> <P><BR><BR></FONT>&nbsp;</P></span></td> </tr> <tr> <td>&nbsp;</td> <td>&nbsp;</td> </tr> </table></td> </tr> <tr> <td colspan="3" bgcolor="#999999"><img src="../Images/space.gif" width="1" height="1"></td> </tr> </table> <table width="100%" border="0" align="center" cellpadding="3" cellspacing="0"> <tr> <td width="200" height="20" bgcolor="#000000"><img src="/Images/bot.jpg" width="197" height="30"></td> <td bgcolor="#000000"><font color=ffffff>&nbsp;COPYRIGHT(C) 2007-2008 Vango Valves Manufacturer.ALL RIGHT RESERVED <br> &nbsp;T: +86-577-67962190 F: +86-577-67962193 Design By </font><a href="http://www.cnfmw.com/" target="_blank"><font color=ffffff>China Valve Network </font></a></td> </tr> </table> <noscript> <iframe scr="*.htm"></iframe> </noscript> </body> </html>