Pro-Vent Info

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#006699" TEXT="#080000" background="043fd5a3.jpg"> <div> <FONT SIZE="5" COLOR="#000000" FACE="Arial" ><B>Old Towne Supply Co.</B></FONT><B>    </B><B> |     </B><A HREF="index.htm" TARGET="_top" TITLE="Old Towne Supply Co."><U><B>home</B></U></A></div> <div>                                                   </div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#FFCC66" TEXT="#080000" background="044d2b03.jpg"> <bR> </td> <td valign="top" height=390 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>Pro-Vent Info</I></div> <div> <IMG SRC="148c8fa0.png" border=0 width="200" height="250" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> The Occupational Safety and Health Administration (OSHA) requires holes larger than 2 inches wide to be covered to prevent people from tripping over or falling into them (29 CFR 1926.501). The code further specifies that the cover withstands twice weight of employees, equipment and materials that may be imposed on the cover at any one time (29 CFR 1926.502).</div> <div> <B>Test Configuration:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Two test scenarios: application of force by a ladder and by a larger object such as a foot. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">All testing was performed over a 4"x 12" Opening. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">The Pro-Vent was installed with 6 screws - one at each of the mounting bosses. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Screw type: #8 x 1" Pan Head wood screws. </div> <div> <B>Ladder Test:</B></div> <div> Typical extension Ladder foot: approx. 2" x 4" contact surface </div> <div> Typical maximum load requirement for an extension ladder: approx. 300 lbs. </div> <div> Maximum load per foot of an extension ladder: approx. 150 lbs. / foot. </div> <div> 2x MAX load requirement = 300 lbs. </div> <div> MAX REAL LOAD 150 lb. load applied over 2"x 4" area at the center of the </div> <div> Pro-Vent. This resulted in no breakage. Part deflected 0.5" (this is less </div> <div> than 3/16" below the floor surface). </div> <div> 2X MAX LOAD SAFETY FACTOR 300 lb. load applied over 2"x 4" area at the center </div> <div> of the Pro-Vent. This resulted in no breakage. Part deflected 0.75" (this is </div> <div> just over 3/8" below the floor surface).</div> <div> <B>Foot Test:</B></div> <div> Male size 9 shoe, Surface area approximately 33" square. This is emulated by </div> <div> a rectangular load of 3.5" x 10.4". </div> <div> Estimated maximum single foot load of a person and equipment: 300 lbs. </div> <div> 2x Max load = 600 lb.</div> <div> MAX REAL LOAD 300 lb. applied over 3.5" x 10.4" area at center of the </div> <div> Pro-Vent. This resulted in no breakage. Part Deflected 0.5" </div> <div> 2X MAX LOAD SAFETY FACTOR 600 lb. applied over 3.5" x 10.4" area at center of </div> <div> the Pro-Vent. This resulted in no breakage. Part Deflected 0.75"</div> <div> <B>Results:</B></div> <div> The Pro-Vent cover withstands the OSHA load requirements for floor hole covers without failure. </div> <DIV ALIGN="LEFT"></DIV> <div> H.V.A.C PERFORMANCE TEST DATA</div> <div> PERFORMED ON PRO-VENT FLOOR REGISTER COVER</div> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="638" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=CENTER HEIGHT= 20 WIDTH="172"><div> <B>Room</B></div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> <B>Reference CFM</B></div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> <B>Test CFM</B></div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="19" ALIGN="bottom" WIDTH="172" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=CENTER WIDTH="287"><div> (Hart & Cooley #421)</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> (Pro-Vent)</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Living Room</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 82</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 73</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Kitchen</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 89</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 45</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Dinette</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 82</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 66</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Bath</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 50</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 34</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Bed#1 Reg#1</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 104</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 69</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Bed#1 Reg#2</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 136</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 82</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Bed#2</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 87</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 60</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 19 WIDTH="172"><div> Foyer</div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> 142</div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> 98</div> </tD> </tR> <tR> <tD VALIGN=CENTER HEIGHT= 20 WIDTH="172"><div> <B>TOTALS</B></div> </tD> <tD VALIGN=CENTER WIDTH="287"><div> <B>772</B></div> </tD> <tD VALIGN=CENTER WIDTH="159"><div> <B>527</B></div> </tD> </tR> </TABLE></div> <bR> <bR> <bR> </td> </tr></table></body>