SPX Cooling Technologies FSIG-TS-08A specifications Specifications, Specification Value, 8.0Casing

Marley / Sigma F Series CoolingTower / Specifications: Base 17

Specifications Specification Value

7.0Hot Water Distribution System:

7.1	The mechanical equipment support/	■ Gravity-flow distribution basins are a feature of crossflow type
	crossover pipe for each cell shall be	towers. These basins are out where they can be easily inspect-
	equipped with a flange for the attachment	ed—even cleaned—while the tower is in operation. Spray sys-
	of customer supply piping. Inlet and bolt	tems of counterflow towers, being sandwiched between the top
	circle dimensions shall conform to 125#	of the fill and the drift eliminators, are extremely awkward to
	flange specifications. The crossover pipe	access and maintain, and require the system to be shut down for
	shall deliver water through PVC perforat-	cleaning.
	ed pipes to two open, stainless steel, hot
	water basins at the fan deck elevation.
	Water shall exit these basins to the fill by
	gravity through metering orifice type poly-
	propylene nozzles situated in the basin
	floor. Nozzles shall be easily removable
	and replaceable.

7.2Water inlet system shall be self-

	balancing, requiring no special valving	The Sigma F Series is designed such that the supply piping to
	for flow regulation from side-to-side of	the tower will not appear outside the tower. Not only does this
	tower.	enhance the tower's architectural appearance, but it also aids the
7.3	Water distribution system design shall	self-balancing aspect of the Sigma F Series water distribution
		system.
	allow water flow reductions down to
	50% of design flow without modifica-	This feature of the Sigma F Series tower allows you to vary the
	tions or adjustments.	water circulation rate as an added means of controlling tower per-
		formance capacity during reduced-load or off-season operation.

8.0Casing:

8.1	The endwalls of the tower, as well	■ 8 oz casing panels are also available at reduced cost, but the stur-
	as the sidewalls above the air inlet	dier 12 oz panels are strongly recommended.
	elevation to the top of the distribution
	basin, shall be cased with 12 oz/sq	Also, if fire-retardant casing is preferred, it would be appropriate
	ft horizontally corrugated FRP panels	to add the following sentence to the end of paragraph 8.1 at left:
	attached to tower columns with stain-	“Casing panels shall have a flame spread rating of 25 or less."
	less steel self-tapping fasteners and
	self-sealing washers. Panels shall be	Heavy duty architectural casing panels are also available, as
	lapped to shed water inward to the	described on page 23.
	tower. Vertical joints shall be lapped
	and sealed watertight. Casing ends at	Architectural treatment can also be enhanced by extending the
	tower corners shall be covered with	casing up to the top of the fan deck guardrail. This is described on
	pultruded FRP angles.	page 23.

8.2In the water-washed endwall fill areas, inner casings of 16 gauge 304 stain- less steel shall also be provided.