INSTALL_1992 - Laserfiche WebLink

Home Browse Search

Installation Instructs Field-Installed Pipinnd Electrical Fittings For Turbine Enclosures and Pipings Sumps H 1. General NOTE:GROMMETS ARE NOT INTENDED TO BE USED FOR PRIMARY PIPING CONNECTIONS TO THE TURBINE Electrical fittings and secondary pipe fittings can be field installed on a ENCLOSURE/PIPING SUMP. turbine enclosure or a piping sump using optional rubber grommets sup- Step#1—Drill and Sand Hole plied by 0/C TANKS.The rubber grommet provides a compression seal To ensure awatertightseal,only use the supplied hole saw for installing to prevent water run-off from entering the piping penetration on the side of the grommets.After drilling,the hole should be clean-cut with defined the turbine enclosure/piping sump.However,to prevent water infiltration, edges.Use the sandpaper supplied with the kit to clean the edge of the grommets are not recommended for high groundwater applications. cut hole to remove loose fibers or burrs.Sand smooth any chipping or Secondary pi pe fittings can also be field-installed using an optional two- irregularities,which are potential sources of leaks. piece FRP coupling supplied by 0/C TANKS.This coupling is cemented Step#2—Insert Grommets In place to provide a water-tight seal for high groundwater applications. After the hole is cut and cleaned,insert the grommet first. WARNING:THIS INSTALLATION PROCEDURE REQUIRES THE Step#3—Install Secondary Pipe Connection USE OF POWERED HAND TOOLS.O/C TANKS RECOMMENDS AIR- To install thesecondary FRP pipe(orthe steel couplings for the electrical DRIVEN TOOLS WHENEVER POSSIBLE.DO NOT USE ELECTRIC fittings)into the grommet,lubricate the outer surface of the pipe and the HAND TOOLS WHERE FLAMMABLE VAPORS OR LIQUIDS ARE inside of the grommet with soapy water. PRESENT.ALSO,WHEN HAND TOOLS ARE USED,BE AWARE OF After lubricating,the pipe is inserted from the side of the grommet with the POTENTIAL SHOCK HAZARDS;WEAR PROTECTIVE CLOTHING larger diameter.As the pipe is pushed into position,the grommet AND EYE PROTECTION. expands and seals the drilled holes.The steel coupling should be posi- tioned so that the grommet is located at the mid point of the coupling length. H2. Fitting Placement and Alignment To minimize the potential for water infiltration at the piping penetration,the FRP couplings and grommets should be aligned radially to the center of Turbine Enclosure Turbine Enclosure the turbine enclosure/piping sump.Also,the placement of the FRP coupl- ��Exterior ��Exterior ing or grommet should not interfere with the adhesive channel of the !, turbine enclosure or the adhesive seam of the piping sump. Taper if Secondary FRP *�� Tapered LD.of FRP PipeGrommet Incorrect �� y � or cmcteelExpands the O.D. ing of fitfngs.�tThe �I Fitting to Seal Turbine Turbine - fitting interferesEnclosure�.t� RIGHT Enclosure�.;i with the adhesive channel seam. �Luhrsapywaer coupli ,I wkhsoapy water for ease ;l • i� � �. of installation. , Grommet Carr 9 posi- '7 Bonin olnte fit- J ting.The fitting secontlary Secondaryent does notwith inter- Containment �. Containment fere with the Collar adhesive than- Collar H4. FRP Coupling Installation WRONG nel seam. The optional FRP coupling(3"diameter)kit includes the two-piece fitting, adhesive,mixing stick,putty knife,and sandpaper.The contractor must supply a jig saw or hole saw(41/2"dia.)to cut the hole for the fitting. The field-installed FRP coupling provided by 0/C TANKS is designed as a secondary containment ftting.The primary piping passes through the Correct _� Incorrect FRP coupling;the outer jacket of the double wall piping isconnectedto Alignment n�—Alignment the FRP coupling. \ � NOTE:DO NOT USE THE FIELD-INSTALLED FRP COUPLING IN THE PRIMARY PIPING. ' CAUTION:The adhesive and the catalyst are flammable.Also the - - - - ... - --- - - - catalyst contains Methyl Ethyl Ketone Peroxide(MEKP),a known eye and skin irritant.Observe safe handling procedures.Always wear impermeable gloves and chemical splash goggles when Turbine Enclosure handling or mixing adhesive.Keep the adhesive and the catalyst (Top view) away from sparks and open flame. Step#1—Cut Hole Use a hole saw(4r/2"dia.)or jig saw(both provided by the contractor)to The FRPaligned rads and to the cents cut a hole at the marked location.Although ti shouldthe aligned radially to the center of 9 peed sawlling th the turhineenclosure/piping sump. longer,any steel blade saw can cut the hole.However,before drilling the hole,carefully layout the piping trench.Double-wall piping systems,par- ticularly double-wall FRP pipe,are stiffer and less forgiving of improper alignment than single-wall piping. H3. Rubber Grommet Installation When rubber grommets are used,the electrical fittings and secondary pipe fittings are installed using the same procedures. The optional grommet kit for electrical connections includes grommets, one hole saw with arbor,and sandpaper. The optional grommet kits for secondary piping fittings includes sand- paper,grommets and a hole saw.The grommets are dimensionally compatible with FRP pipe manufactured by either Ameron or Smith Fiberglass.However,the contractor provides the secondary FRP pipe, which is placed in the grommet. 16