Upright Polyethylene Tanks

Exceed ASTM D-1998-97 design standards The American Society for Testing and Materials (ASTM) committee formulated design standard for all vertical polyethylene storage poly tanks to assure consistency and safety in poly tank designs and manufacturing.  All Kefco vertical poly tanks are designed to exceed ASTM standard requirements.  As a result, TWIN TANKS poly tank walls are thicker in critical hoop stress areas.	Available with siesmic zone 4 and UBC 110 mph wind restraint tie-down systems Most TWIN TANKS verticals incorporate molded-in tie-down lugs, which are designed to interface with a cable tie-down system.  Many poly tank designs have the ability to be modified for even more stringent specification standards when required.
Material options for a diverse range of application requirements TWIN TANKS has the ability to cater a poly tank's material construction to an application's specific requirements.  We offer the following resin options: High-density linear polyethylene (HDLPE)* in black & natural white color Cross-linked, high-density polyethylene (XLPE) in black & natural white color Opaque white -- "black-out" resin	Specific gravity rating's are based on the industry's most severe calculation TWIN TANKS utilizes a 600 psi hoop stress measured from the top of the poly tanks dome to calculate our posted specific gravity for every vertical poly tank we manufacture.  As a result, TWIN TANKS' specific gravity ratings deliver a stronger poly tank with a higher safety factor.  Standard specific gravity choices are 1.5 and 1.9, other ratings are available upon request.  Specific gravity reflects material weight.  For example, 1.5 S.G.=12 lb/gallon, and 1.9 S.G.=15.2 lb/gallon.
* Complies with U.S. Food and Drug Administration Regulation 177.1520.	All poly materials are UV stabilized for long-terrm outdoor service.

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1.9 specific gravity, 6,500 gallon vertical poly tanks are utilized to store a variety of acids and caustic materials at a chemical distribution plant.

Click for Details TWIN TANKS vertical poly tanks incorporate many molded-in features, such a large flat areas for stronger fitting and accessory support, lifting eyes for easier unloading and site installation, tie-down lugs for seismic cable restraint systems. TWIN TANKS' integrally molded-in bottom drain fitting, SUMO, provides maximum drainage for vertical bulk storage poly tanks and is available as an option in diameter sizes up to 6".

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Vertical poly tanks
Part No.	Gallons	Brimful Capacity Gallons	Diameter (inches)	Overall Height (inches)	Cylinder Height  (inches)	Manway/Fill Diameter (inches)
153--	22	22	17.5	23	21.25	2"
155--	65	70	23.25	45.5	40.25	6
8010--	110	115	33	37	29	10
154--	200	235	40	48	42.25	6
8020--	200	215	33	64	56	10
8030--	300	318	33	92	84	10
8040--	300	315	46	48	41	10
174--	400	400	45	62	56.5	18
180--	550	550	48	75	67.5	18
8050--	550	550	46	89	75	18
182--	550	580	64	46.5	37.5	18
8060--	550	580	64	46	36	18
181--	850	845	48	114	106.5	18
183--	1100	1100	64	87.5	78.5	18
171--	1100	1100	86	56.5	36	10
8120--	1100	1100	86	56	39	10
177--	1500	1500	86	73.5	52.5	10
184--	1550	1550	64	121	112.5	18
178--	1650	1650	86	79.75	54.5	10
8110--	1650	1650	86	72	56	18
8300--	1900	1950	64	144	135.75	18
5050/8130	2000	2100	90	89	72.5	18
5090/8140	2500	2600	90	108	92	18
5130/8160	3000	3150	90	127	111	18
7410--	3000	3200	102	95.5	87.5	18
8170--	3200	3250	86	138	126	18
5190--	3900	4100	90	163.5	147.375	18
8190--	4100	4200	102	129	114	18
5210--	4400	4600	90	182.5	166.5	18
8240--	4400	4400	120	100	83	18
7420--	4500	4700	102	141	133	18
5480--	4900	5100	90	201.75	185.75	18
8210--	5100	5200	102	159	144	18
7020--	5500	5600	90	220.5	204.5	18
7000--	5500	6000	120	131	118	18
5250--	5600	6350	142	101.5	85.5	18
7430--	6000	6300	102	186.5	178.5	18
8220--	6200	6300	120	138.5	126	18
7140--	6500	7000	120	152	139.25	18
5300--	7000	7700	142	121.5	105.5	18
7440--	7500	7800	102	232	224	18
7400--	8500	8950	120	193	180	18
5360--	8750	9250	142	141.5	125.5	18
7450--	9500	9900	120	214	201.25	18
5330--	10500	10850	142	168.25	152.25	18
5350--	12500	12750	142	197.5	181.5	18
5370--	15000	15250	142	233	217.25	18
5380--	16500	16800	142	256.75	240.75	18
5390--	22000	22000	142	333.5	317.5	18

CAD drawing available on each poly tank.  Click here for fittings and accessories.
More sizes available, call for information!

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