COMPLIANCE INFO_1997-2002 - Laserfiche WebLink

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RHDuplex Service Fittings Duplex service fittings (available in 2", 4" and 6" NPT) allow the placement of two service fittings (which sit astride the tank center line) in any standard fitting location. Dimension "D" is 6" for 2" fittings, or 12" for 4" and 6" fittings. "D" Boo 1 I I I 1 Secondarily Contained Service Fittings Secondarily contained service fittings, typically a 4" NPT within a 6" NPT allow the tank to be connected to a secondarily contained piping system. 0 b 10 Flanged and conically gusseted nozzles are available in 2", 4", 6" and 8" diameters. The flange face matches the ANSI 150# face pattern. Mating flanges must be flat faced. Access Hole © Fiberglass Fill tubes are screwed into the bottom of a 6" x 4" NPT double tapped reducer bushing which is located in a service fit- ting. The bottom of the fill tube is located four inches above the bottom of the tank with the open end slanted 45°. The top of the 4" NPT service fitting is closed with a 4" cast iron plug to facilitate shipment and testing. jkr.RXES CORPORATION LIFiberglass Bottom Sumps Bottom sumps provide a basin to trap contaminant liquids or solids from the primary tank that are heavier than the product stored in the tank. The sump must be located beneath a service fitting to facilitate pumpout. 4" "'__ �8" I.D. RBrine Filled Interstice and FRP Reservoir The brine filled interstice provides a positive pressure hydrostatic monitor system to detect a leak in the primary or secondary wall of the tank. The reservoir, incorporating a 4" NPT monitor fitting, is a permanent part of the tank. With the exception of the 25,000 and 30,000 gallon tanks, the tank is delivered with the interstice filled with the brine.