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r <br />MODEL <br />DWT -2P(8) 6,000 <br />a'R With <br />Standard <br />Fittings <br />2'3-1/1' 3'2-1/2'r--3-8' 12'-9 Shown <br />5. 3-3/8. <br />t-- <br />Ye" M <br />8'2-1/2 ; 81• <br />O.D. <br />I <br />4'10' 10'I" -4'l0' <br />19'9' <br />MODEL <br />DWT -2P(8)10,000 <br />8'R \ Stan <br />}$ Standard <br />Fittings <br />Shown <br />2'1-I/2"—BB-I/1--i•-8'S'-2'9. <br />5' X2.,9 --t II I "I I'- _ _� 3-3/8 <br />{� <br />! <br />7'8' I D. I <br />7 11-1/1 82 1/2 i 8'1" <br />OD. ! <br />! <br />h0" 8'3 4'7"--8T---J-4'10' <br />309" <br />EL <br />MOD L <br />8.R* <br />R 1-} }- DWT 2P(10)15,00 <br />With Standard <br />Y3-1/2' 0-1 56* -2.9" Fittings Shown <br />�! 3'2-1/2" <br />1 <br />i <br />! <br />06 <br />/�--.5.6•— 5/8.I 101-1/ <br />OD <br />__47•--•.,..-5•g--g•g_2/g• <br />29'0-3/1' <br />Standard Tank Notes <br />1. Standard pipe fittings to the primary <br />tank are 4" NPT half couplings. All <br />tanks 2,500 gallon capacity and larger <br />include one manway with three fittings <br />to the primary tank located in the <br />manway cover. All other primary tank <br />fittings are mounted on the tank. <br />Additional manways and tank fittings <br />are available on made-to-order tanks. <br />2. Tank bottom deflector plates are <br />standard under every manway and <br />fitting. <br />3. Bumper pads are standard on all <br />tanks 6' diameter and larger. The <br />pads provide added protection to <br />the tank prior to installation. <br />4. All Model "P" tanks include a <br />Fiberglas reservoir, used for leak <br />monitoring, integrally constructed to <br />the tank top. The reservoir includes <br />one 4" NPT half coupling fitting <br />mounted on the top of the reservoir <br />allowing access to the cavity'between <br />MODEL <br />DWT -2P(8) 8,000 <br />a R(� With <br />! °• +$_+ Standard <br />Fittings <br />2'3-I/2' 511-1/2' -_ 5'6- 2•q• Shown <br />5 r2'9'-!10. ::40 <br />i --I1 �'i I• - !--r 3-3 <br />i !••t <br />i <br />T8' IO <br />1 <br />7 100/4 <br />4'10' 3'8' 6'5' S'6' 4'10' <br />25'3 <br />MODEL <br />DWT -2P(8) <br />With <br />8•8Standard <br />+.}_ <br />1 + Fittin <br />Showgsn <br />the inner and outer tank walls. <br />4 % MODEL <br />WT 2P(10) <br />With <br />11'R* Standard <br />i } Fittings <br />Shown <br />5. In addition to the monitoring fitting <br />located in the Fiberglas reservoir, <br />tanks 1,000 gallon capacity and <br />larger include additional monitoring <br />fittings (4" NPT) located at the tank <br />top. See the tank specifications for <br />the number of monitoring fittings for <br />each tank size. <br />6. Anchoring strap locations are <br />indicated by arrows on the side <br />of the tank. <br />7. Monitoring capabilities—the following <br />restrictions apply for the various types <br />of double-wall tank monitors: <br />a) Hydrostatic Tank Monitor—tank <br />burial depth must not exceed 7' <br />from tank top to finish grade. <br />The monitoring cavity must be <br />vented to the atmosphere. The <br />optional reservoir sensor, supplied <br />by Owens-Corning, is designed to <br />automatically vent the monitoring <br />cavity. <br />b) Liquid sensors—when normally <br />"dry" cavity monitors (which detect <br />the presence of a liquid) are used, <br />the cavity between the inner and <br />outer tank may be either vented <br />to the atmosphere or sealed. <br />c) Vacuum monitoring—when <br />vacuum monitoring is used, the <br />maximum vacuum is 3" mercury <br />(1.5 psi maximum). <br />d) Positive air pressure monitoring— <br />when positive air pressure moni- <br />toring is used, the maximum air <br />pressure is 3 psi. <br />e) Gasoline vapor sensors—when <br />gasoline vapor sensors are used, <br />the cavity between the inner and <br />outer tank may be either vented <br />to the atmosphere or sealed. <br />