ÿþ<html> <head><TITLE>LINEBACKER NON-ISOLATING SEALING GASEKTS</TITLE> <SCRIPT LANGUAGE="JavaScript"> <!-- var name = navigator.appName if (name == "Microsoft Internet Explorer") url=("e.css"); else url=("n.css") document.write('<LINK REL=STYLESHEET HREF="' + url + '">'); // End --> </SCRIPT> <SCRIPT LANGUAGE="JavaScript1.2" SRC="slideshow.js"> </SCRIPT> </HEAD> <BODY> <div class="corpinfo"> <P><SPAN STYLE="font-size: 12px; font-weight: bold">Pipeline Seal & Insulator, Inc.</SPAN><BR> <SPAN STYLE="font-size:11px">6525 Goforth Street, Houston, TX 77021<BR> Tel: 713-747-6948&nbsp;&nbsp;&#149;&nbsp;&nbsp;Fax: 713-747-6029<BR> Toll Free: 800-423-2410<br> e-mail: info@psipsi.com<br> <B><A HREF="../../../../index.html">Home</A><BR> <b><A HREF="../../../../contacts.htm" TARGET="_blank">All Contacts</A><BR> <A HREF="http://www.pipelineseal.com/repagent-psi.htm" TARGET="_blank">Distributor Locator</A> <A HREF="../../../../pdf_lit/pdfentry.htm">Literature Downloads (PDF)</A> </span></p> </div> <div class="prodlinks"> <P ALIGN="RIGHT"><SPAN STYLE="font-size: 12px; line-height: 22px"> <B>Product Lines</B><BR> <A HREF="../../../../casing_isolators/mc_casing_isolators.htm">Casing Isolators</A><BR> <A HREF="../../../../casing_isolators/end_seals/endseals.htm">EndSeals</A><BR> <A HREF="../../../../gaskets/flange_isolation_kits/fik.htm">Flange Isolation Kits</A><BR> <A HREF="../../../../isolating_fittings/electrostop.htm">Isolating Fittings</A><BR> <A HREF="http://www.riserwrap.com">Riser-Wrap&reg; Sealing System</A><BR> <A HREF="http://www.linkseal.com">Link-Seal&reg; Modular Seals</A> </SPAN></P> </div> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="10"></TD> <TD><P><BR></P> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="5"></TD><TD WIDTH="250"> <IMG SRC="gradient_left.jpg" WIDTH="250" HEIGHT="200"> </TD><TD WIDTH="15">&nbsp;</TD><TD WIDTH="150" ALIGN="CENTER" VALIGN="MIDDLE"> <P><IMG SRC="psi15090.jpg" WIDTH="150" HEIGHT="90" BORDER="0"><BR> <SPAN STYLE="font-size: 20px; font-weight: bold; line-height: 24px; color: 999999"> Experience Counts!</SPAN></P></TD> <TD WIDTH="10">&nbsp;</TD><TD WIDTH="250"> <IMG SRC="gradient_right.jpg" WIDTH="250" HEIGHT="200"></TD></TR></TABLE></P> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="100"></TD><TD WIDTH="900" ALIGN="CENTER"> </TD></TR></TABLE></P> <P><BR></P> <HR WIDTH="675" ALIGN="LEFT"> <P><SPAN STYLE="font-family: arial; font-size: 24px; font-weight: bold"> LineBacker&reg Sealing (Non-Isolating) Gaskets</SPAN></P> <HR WIDTH="675" ALIGN="LEFT"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="103"><IMG SRC="lbni95100.jpg" WIDTH="95" HEIGHT="100" BORDER="0"></TD> <TD WIDTH="10"></TD><TD WIDTH="128"><IMG SRC="gsni128100.jpg" WIDTH="128" HEIGHT="100" BORDER="0"></TD> <TD WIDTH="10"></TD><TD WIDTH="96"><IMG SRC="flange96100.jpg" WIDTH="96" HEIGHT="100"></TD> <TD WIDTH="10"></TD><TD WIDTH="140"><IMG SRC="refine140100.jpg" WIDTH="140" HEIGHT="100"></TD> <TD WIDTH="10"></TD><TD WIDTH="110"><P><SPAN STYLE="font-size: 11px; line-height: 12px"> <A HREF="#description">Description</A><BR> <A HREF="#typicalapp">Typical Application</A><BR> <A HREF="#benefitsfeatures">Benefits/Features</A><BR> <A HREF="#specifications">Specifications</A><BR> <A HREF="#warranty">Warranty</A><BR> <A HREF="#installation">Installation</A><BR> <A HREF="#howtoorder">How to Order</A><BR> <A HREF="#typicalspecification">Typical Specification</A><BR> <A HREF="#resources">Resources</A><BR> <A HREF="#related">Related Products</A></TD> </TR></TABLE></P> <P><BR></P> <A NAME="description"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Description</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290" VALIGN="TOP"><P> LineBacker® sealing gaskets utilize a patented rectangular sealing element, referred to as a  quad ring, in combination with a unique groove design to effectively seal flanges of all types. With the unique  quad ring design, elastic memory is provided for elastomers not normally associated with this characteristic. Materials such as AFLAS, TFE (Teflon) and KALREZ may therefore be used as sealing elements which dramatically increases the options available for matching gasket </P></TD><TD WIDTH="25"></TD><TD WIDTH="290" VALIGN="TOP"> <P>materials to service and environmental conditions. This greater variety of materials also provides excellent temperature and chemical range compatibility. LineBacker® sealing gaskets are self energizing with theoretical near zero  m and  y factors resulting in effecting a positive seal without excessive bolt loads required with flat gaskets. </P></TD></TR> <TR><TD WIDTH="35"></TD><TD COLSPAN="3"><IMG SRC="lbni500259.jpg" WIDTH="500" HEIGHT="259"> </TD></TR> <TR><TD WIDTH="35"></TD><TD WIDTH="290"> <P><B>Before Tightening</B><BR> The flange faces come into contact with the sealing elements, which extend slightly above the surface of the retainer. As the flange is tightened the sealing elements are compressed and move sideways into the inclined portion of the groove, developing a high unit pressure against the flange faces.</P> <P ALIGN="CENTER"><IMG SRC="lbbt150153.jpg" WIDTH="150" HEIGHT="153"></P></TD><TD WIDTH="25"></TD> <TD WIDTH="290"><P><B>After Tightening</B><BR> The flange faces have come into firm contact with the retainer, thus encapsulating the sealing elements within grooves. At the same time, the unique LineBacker seal configuration provides elastic memory for elastomers not normally associated with this characteristic - resulting in a simple flat gasket with extremely high loading and self energizing characteristics without adverse cold flow problems.</P> <P ALIGN="CENTER"><IMG SRC="lbat150151.jpg" WIDTH="150" HEIGHT="151"></P> </TD></TR> </TABLE></P> <P><BR><BR></P> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD> <TD WIDTH="290" ALIGN="CENTER"><P><B><IMG SRC="e200193.jpg" WIDTH="200" HEIGHT="193"><BR> TYPE E GASKET</B><BR> The gasket retainer extends out to the O.D. of the flange. Holes are cut in a type "E" gasket at the bolt circle to accommodate threaded studs or bolts.</P></TD><TD WIDTH="25"></TD> <TD WIDTH="290" ALIGN="CENTER"><P><B><IMG SRC="f200183.jpg" WIDTH="200" HEIGHT="183"><BR> TYPE F GASKET</B><BR>The gasket retainer extends out to the I.D. of the bolt circle.</P></TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="benefitsfeatures"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Benefits/Features</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290" VALIGN="TOP"> <UL><LI>Eliminates Flange Leaks.</LI> <LI>Guards against blowouts.</LI> <LI>Protects against fire and hostile environments.</LI> <LI>Usable with any type of flange.</LI> <LI>Matches gasket materials to service conditions.</LI> <LI>Lowest possible clamp and compressive load.</LI> <LI>Increases gasket life.</LI> <LI>Insulating version is both a positive seal and a superior insulator.</LI> </UL> </TD><TD WIDTH="25"></TD><TD WIDTH="290" VALIGN="TOP"><P> <B>Sizes</B> <UL><LI>All standard ANSI and API flange sizes from 1/2" and above.</LI> <LI>Custom odd sizes and shapes.</LI></UL></P> <P><B>Pressure Ratings</B> <UL><LI>All ANSI and API rated flanges.</LI> <LI>Pressures from hard vacuum to 50,000 psi and higher.</LI> </UL></P></TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="specifications"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="5"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Metallic Gasket Retainer and Seal Element Options</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="450" VALIGN="TOP"> <P><TABLE BORDER="1" CELLSPACING="0" CELLPADDING="5"><TR> <TH ROWSPAN="21" WIDTH="50" BGCOLOR="#FFFFCC"></TH><TH><P>Metallic<BR>Retainer<BR>Materials</TH> <TH ROWSPAN="21" WIDTH="100" BGCOLOR="#FFFFCC"></TH><TH><P>Sealing<BR>Elements</TH><TH ROWSPAN="21" WIDTH="50" BGCOLOR="#FFFFCC"></TH></TR> <TR><TD><P>Aluminum</TD><TD><P>Buna-N (Nitrile)</TD></TR> <TR><TD><P>Brass</TD><TD><P>Buna-S</TD></TR> <TR><TD><P>Carpenter 20</TD><TD><P>Butyl</TD></TR> <TR><TD><P>Carbon Steel</TD><TD><P>EPDM</TD></TR> <TR><TD><P>Cast Iron</TD><TD><P>Hypolon</TD></TR> <TR><TD><P>Clad Steel Materials</TD><TD><P>Kel-F</TD></TR> <TR><TD><P>Copper</TD><TD><P>Natural Rubbers</TD></TR> <TR><TD><P>Ductile Iron</TD><TD><P>Neoprene</TD></TR> <TR><TD><P>Hastelloy B</TD><TD><P>Nylon</TD></TR> <TR><TD><P>Hastelloy C</TD><TD><P>Polyimide</TD></TR> <TR><TD><P>Hastelloy X</TD><TD><P>Polyurethane</TD></TR> <TR><TD><P>Inconel X</TD><TD><P>Silicone Rubber</TD></TR> <TR><TD><P>Monel</TD><TD><P>Teflon&reg;</TD></TR> <TR><TD><P>Nickel 200</TD><TD><P>Vinyl</TD></TR> <TR><TD><P>Soft Iron</TD><TD><P>Viton®</TD></TR> <TR><TD><P>Stainless Steel</TD><TD><P>&nbsp;</TD></TR> <TR><TD><P>Tantalum</TD><TD><P>&nbsp;</TD></TR> <TR><TD><P>Tin</TD><TD><P>&nbsp;</TD></TR> <TR><TD><P>Titanium</TD><TD><P>&nbsp;</TD></TR> <TR><TD><P>Vanadium</TD><TD><P>&nbsp;</TD></TR> </TABLE></P> <P><SPAN STYLE="font-size: 11px">&reg;DuPont</SPAN></P> </TD><TD WIDTH="20"></TD><TD WIDTH="150"></TR></TABLE></P> <P><BR><BR></P> <A NAME="warranty"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="5"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Warranty</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290"><P> All products are warranted against failure caused by manufacturing defects for a period of one year. Any product found to be so defective and returned within one year from date of shipment will be replaced without charge. The above warranty is made in lieu of, and we disclaim, any and all other warranties,</P></TD><TD WIDTH="25"></TD> <TD WIDTH="290"><P>expressed or implied, including the warranties of merchantability and fitness for a particular purpose, and buyer agrees to accept the products without any such warranties. We hereby disclaim any obligation or liability for consequential damages, labor costs or any other claims or liabilities of any kind whatsoever.</P></TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="installation"><P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Installation</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="505"> <P><OL><LI>Open packaging to inspect and determine that components are as specified. Check the gasket I.D. It should be no greater than the flange I.D.</LI> <LI>Flanges shall be free of pits, gouges, rust, debris, oil and grease. Surface finish shall be no greater than 250 RMS. Refinish flange faces if corrective measures do not meet the foregoing. Check flange and bolt hole spot facings for burrs, etc& and clear from facings.</LI> <LI>Check bolts and nuts and clean. Apply non-conductive lubricant to all threads and flange side of nuts.</LI> <LI>Align flanges so they are concentric and parallel and install gasket carefully. USE NO LUBRICANT, GREASE OR ADHESIVES ON EITHER THE GASKET OR FLANGE FACES, Guard against damaging sealing element.</LI> <LI>Line up bolt holes with non-tapered drift pins using three at 120° degrees separation (particularly large flanges), or at least two at 180° degrees separation.</LI> <LI>Insert studs, nuts and washers, placing lubricated face of nut next to steel washer (this will help to reduce galling of the insulating washer on flange, should the whole bolt assembly rotate). Galling: If serious galling of insulating washers persists, replace with high strength washers. (minimum 50K psi or greater).</LI> <LI>Initially cross-tighten bolts until flange to gasket contact has been made.</LI> <LI>Check for a flange segment that may show a gap or separation between gasket and flanges, using flashlight, calipers, or feeler gauge. If one exists, the flanges are not parallel.</LI> <LI>Directly 180° degrees opposite widest part of indicated gap, loosen nuts, even if only finger tight, one or more turns. Return to segment with gap and tighten until both flanges are in contact with gasket retainer. This procedure is necessary to prevent restriction of flange rotation over the fulcrum formed by the outer edge of the two raised faces at points in contact with gasket retainer. The restriction will cause exceptionally high flange to gasket clamp loading at this point, with possible damage to gasket retainer, PLUS diverting necessary clamp loading bolt torque energy to correcting alignment on the opposite segment.</LI> <LI>Re-tighten loosened nuts and proceed with torqueing of the bolts according to PSI diagram, to 10-15% of specified torque. Remove drift pins and replace with bolts, nuts and washers, tightened to the same values as others in place.</LI> <LI>Repeat torque sequence, increasing to 50% of balance.</LI> <LI>Repeat tightening to final torque.</LI> <LI>Optional  it is always a good policy to go completely around flange checking bolt to bolt for proper torque, particularly on large diameter piping systems.</LI> <LI>All the above should be done with torque wrenches (mechanical and hydraulic) or with a stud tension measuring device.</LI></OL></P> </TD></TR></TABLE></P> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290"> <P><SPAN STYLE="font-weight: bold; color: FF0000">Always wear appropriate safety equipment!</SPAN><BR> Important: Check gasket for flange type on which to be used (ie). Slip or weld-neck etc& If in doubt do not install, consult supplier or PSI.</P> <P>To provide even sealing pressure on a flange gasket it is recommended that the bolts be  snugged up in the sequence shown on chart until the flange faces are in contact with the gasket. After the flange faces are in contact with the gasket firmly tighten the bolts in the same sequence. Note: Although this diagram shows 24 bolts, the same basic procedure should be used with flanges having more or less bolts. When installing gaskets made of compressible dielectric material and tightened cold;  hot flow of the gasket material may occur under operating conditions, resulting in loss of bolt pressure. It is advisable therefore, to re-tighten bolts after operating temperature has been reached  preferably at zero line pressure and ambient temperature. Under no circumstances should the system be allowed to return to operating temperature after the initial cycling to ambient temperature without checking and re-tightening bolts where needed.</P> </TD><TD WIDTH="25"></TD><TD WIDTH="290"> <P><IMG SRC="tight.jpg" WIDTH="290" HEIGHT="290"><BR><BR> <A HREF="../../torqueValues08.pdf" TARGET="_blank">Suggested torque values for PSI sealing gaskets.</A></P> </TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="howtoorder"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> How To Order</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290" VALIGN="TOP"><P> <B>To order LineBacker&reg; Sealing/Isoulating Gaskets please indicate the following:</B> <OL><LI>Quantity</LI><LI>Nominal Pipe Size</LI><LI>Pressure Rating</LI><LI>Gasket Type: E or F</LI> <LI>Gasket Style: LineBacker&reg;</LI><LI>Retainer Material</LI> <LI>Sealing Element</LI> <LI>Weld neck or slip-on application</LI><LI>Note all special requirements.</LI><LI> Contact your local distributor or Pipeline Seal & Insulator, Inc.</LI></OL></P> </TD><TD WIDTH="25"></TD><TD WIDTH="290" VALIGN="MIDDLE"> <P><SPAN STYLE="font-size: 13px; font-weight: bold"><A HREF="http://www.pipelineseal.com/repagent-psi.htm">Distributor Locator</A><BR> <A HREF="../../../../contacts.htm">Contact PSI</A> </SPAN></P></TD></TR></TABLE></P><P> <P><BR><BR></P> <A NAME="typicalspecification"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Typical Specification</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290" VALIGN="TOP"><P> <SPAN STYLE="font-size: 14px; font-weight: bold"></SPAN><BR> </P> </TD><TD WIDTH="25"></TD><TD WIDTH="290" VALIGN="TOP"> <P><SPAN STYLE="font-size: 14px; font-weight: bold"></SPAN><BR> </P> </TD></TR> <TR><TD WIDTH="35"></TD><TD COLSPAN="3" ALIGN="CENTER"> <P><A HREF="http://www.ukas.com" TARGET="_blank"><IMG SRC="nacb12482.jpg" WIDTH="124" HEIGHT="82" BORDER="0"></A>&nbsp;&nbsp;&nbsp;&nbsp; <A HREF="http://www.anab.org" TARGET="_blank"><IMG SRC="anab10125_15082.jpg" WIDTH="150" HEIGHT="82" BORDER="0"></A></P> </TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="resources"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Resources</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290"><P><SPAN STYLE="font-weight: bold; line-height: 14px"> <A HREF="../../../../pdf_lit/sgcat.pdf">Sealing Gaskets</A></SPAN><BR> <IMG SRC="sgcat100129.jpg" WIDTH="100" HEIGHT="129" BORDER="0" ALIGN="RIGHT"> A 12 page booklet that includes all PSI Sealing Gaskets including specifications, material compatibility charts and features.<BR><BR>PDF File Size = 1,014KB. </P></TD><TD WIDTH="25"></TD><TD WIDTH="290"><P><SPAN STYLE="font-weight: bold; line-height: 14px"> <A HREF="../../../../pdf_lit/fi_cat.pdf">Flange Isolation Kits.</A></SPAN><BR> <IMG SRC="fikcat100129.jpg" WIDTH="100" HEIGHT="129" BORDER="0" ALIGN="RIGHT"> A 12 page booklet that includes all PSI flange isolation kits.<BR><BR>PDF File Size = 532KB. </P></TD></TR></TABLE></P> <P><BR><BR></P> <A NAME="related"> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="6"> <TR><TD WIDTH="25"></TD> <TD WIDTH="620" BGCOLOR="CCCCCC"><P><SPAN STYLE="font-family: arial, helvetica; font-weight: bold; font-size: 18px"> Related Products</SPAN></P></TD></TR></TABLE></P></A> <P><TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0"><TR> <TD WIDTH="35"></TD><TD WIDTH="290" VALIGN="TOP"><P><BR> <B><A HREF="../gasket_seal/gsni.htm">GasketSeal&reg; Sealing Gaskets (Non-isolating)</A><BR><BR> <A HREF="../flange_mate/fmni.htm">FlangeMate&reg; Sealing Gaskets (Non-isolating)</A> </P></TD></TR></TABLE></P> </BODY> </HTML>