Laserfiche WebLink
Custom Fire Apparatus, Inc. <br />Suction manifolds, where not part of and integral with the pump manufacturer's pump intake castings, <br />shall be fabricated of "tubular" stainless steel ONLY, schedule 10 or schedule 40 wall thickness, type <br />304L. <br />NOTE: Due to the poor flow characteristics, a suction manifold fabricated of square or rectangular tubing <br />with flat -mount weld spuds and/or riser pipes for auxiliary suction taps, is not an acceptable substitute to <br />a tubular manifold. <br />All suction manifolds and fittings, and suction valves, tubing's, and hose line assemblies shall be pressure <br />tested after installation. <br />PUMP FITTINGS AND "ROUND TUBULAR" 304L S/S DISCHARGE MANIFOLD <br />The above specified fire pump shall be furnished with high -tensile closed grain cast iron "bolt -on" left <br />and/or right side discharge fittings (upstream of discharge valves only) and cast iron "bolt -on" left side, <br />right side, and/or front/rear large diameter suction intake adapters, as furnished and flow/pressure tested <br />by the fire pump manufacturer. <br />A type 304L stainless steel "round tubular" discharge manifold shall be furnished, flange bolted or <br />Victaulic clamped to and easily removable from, the fire pump's large diameter discharge outlet taps. <br />NOTE: Due to the likelihood of high pressure deformation (regardless of wall thickness), manifolds <br />fabricated of square or rectangular tubing's, are not acceptable <br />The tubular manifolds main waterway shall be commensurate in diameter to feed the quantity and size of <br />auxiliary discharge line "branches". So as to provide unsurpassed flow characteristics, all auxiliary <br />branch reducers shall be concentric bell reducers, and all couplings and risers shall be "coped" to <br />conform to the radius of the larger size feed waterway. Flat -mount weld spuds and non -coped risers <br />welded to rectangular fabrications and end plates are not acceptable. <br />All stainless steel welding shall be TIG, to assure proper penetration and conformity with original tubing <br />and weld fitting outside diameters. All elbows shall be smooth sweep weld fittings. <br />See following specifications describing the number/size/locations of outlet gate valves to be furnished. <br />Heavy wall threaded pipe and pipe fittings shall be used, wherever possible, downstream of the specified <br />side outlet and top deluge discharge valves. <br />All flexible discharge lines and bleeder lines, downstream of respective valves, shall be reinforced high <br />pressure hose assemblies with stainless steel or brass end fittings. <br />Pressure gauge tubing lines shall be clear polypropylene with brass fittings. <br />All discharge manifolds and fittings, suction manifolds and fittings, discharge and suction valves, <br />tubing's, and hose line assemblies shall be pressure tested before and after installation. <br />07/26/22 <br />-75- <br />