tank manufacturing

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The tank size is determined considering conditions of a site and economical efficiency. If the factor of site is not considered, a smaller diameter will reduce the investment cost (materials and engineering). For storage of liquid contents in bulk except high pressure gases and volatile matters, CRT (Cone Roof Tank) is generally used. The details are described in the following table. The types of roof are divided into the fixed roof type and the open top type in general, and the fixed type can be divided into the self support roof and the supported roof. Corrosion of the bottom plate is the biggest problem for a tank. Finishing such as oil sanding is required to prevent corrosion which is caused by rain water intruding through the gap between the bottom plate and the foundation.

	Kinds and Physical Properties (Specific Gravity, Volatility and Corrosiveness) of Contents
	Capacity (Nominal, Gross and Working Storage) and Size (Diameter x Height) of Tank
	Area if Site, Maintenance Space, Piping and Other Facilities, Future Plan for Further Facilities
	Relevant Regulations for Distance between Tanks and Required Area of Dike
	Static & Variable Load, Wind Load & Seismic Load

Kinds	Types	Applicable Conditions	Volatility of Stored Contents			Remarks
Kinds	Types	Applicable Conditions	Low	Medium	High	Remarks
CRT	Cone Roof Tank	- Most General Type - Internal Pressure :-50∼+100 mmH2O - Small Scaled Tank: Up to 250 mmH2O 까지 가능 (Refer Appendix F for to API 650 )	O	△	X	- Self Support Roof Type: : Diameter ≤ 16m (Standard) - Support Roof Type: : Diameter ＞16m (Standard)
DRT	Dome Roof Tank	- For cases CRT is not available - Max. Internal Pressure: 1,000 mmH2O - Small Scaled Tank: Up to 3,000 mmH2O	O	O	X	- More expensive than CRT in General
FRT	Floating Roof Tank	- For cases of small Vapor Loss - Mixture with a little amount of rain water is allowed.	O	O	X	- Single?Deck,?Double?Decks - Cautions for installation on snowing area
CFT	Covered Float Tank	- For cases of small Vapor Loss - Mixture with a little amount of rain water is not allowed. - Suitable for Cold Area and Snowing Area	O	O	X	- Safe from rain, wind and snow

※ Storage for High-Pressure Gas and Liquefied Gas: Spherical Tank (SPT), Double Wall Tank (DWT)
※ ○: Optimum, △: Suitable, ×: Not Suitable

Model	Size		Capat (㎥)	Bottom		Shell		Roof		Rafter		기타(kg)	Total Weight (kg)
Model	Dia. (m)	Shell (m)	Capat (㎥)	t (mm)	w (kg)	T (mm)	W (kg)	T (mm)	W (kg)	Size	Weight (kg)	기타(kg)	Total Weight (kg)
HSSO-5	1.5	3.0	5	5	90	5	571	5	92	100x50x5	29	75	829
HSSO-10	1.9	3.0	10	5	144	5	723	5	153	100x50x5	37	102	1,122
HSSO-30	2.5	4.0	30	6	299	5	1,331	5	264	100x50x5	48	189	1,084
HSSO-50	3.8	4.5	50	6	689	5	2,167	5	610	100x50x5	110	347	3,813
HSSO-80	4.5	6.0	100	6	697	5	3,421	5	855	125x65x6	249	524	,5767
HSSO-100	5.4	6.0	150	6	1,391	6	5,488	5	1231	125x65x6	448	811	8,921
HSSO-150	7.0	5.5	200	6	2,366	6	5,835	5	2,068	125x65x6	484	1,024	11,263
HSSO-200	7.0	8.0	300	6	2,336	6	8,478	5	2,068	150x75x8	806	1,288	14,171