Oil Tank By Shanghai Metal Corporation,

Oil Tank

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Product Specification

Product Description

National standard: GB *********5
International standard: API********7

Shanghai Construction is dedicated to provide our customer the international quality oil tank. The oil tank product is hot selling right now all over the world. You definitely will need our oil tank product when you are doing buiness in the petroleum field.

Standard for Oil Tank

National standard: GB *********5 Construction and acceptance standard for vertical cylindrical steel welding oil tank

International standard: API********7 Standard of steel weld oil storage tank

API Standard for Oil Tank

API Standard	Title	Description
API***0	Design and Construction of Large, Welded, Low Pressure Storage Tanks	Guide for construction of tanks with internal pressures up to *5 psig. For large tanks which are assembled in field and are used for storage of petroleum intermediates and petroleum products.
API **0	Welded Steel Tanks for Oil Storage	This document governs the construction of tanks storing hydrocarbon products at low operating pressure (up to 2.5 psig).
API***1	Cathodic Protection for Above Ground Petroleum Storage Tanks	Discussion on corrosion problems in above ground petroleum storage tanks and associated piping. Plus description of two commonly used methods of providing cathodic protection against corrosion.
API***2	Lining of Above Ground Petroleum Storage Tanks	Guide effectively limiting corrosion by lining the tank bottom, for hydrocarbon storage tank made of steel. Guidelines are given regarding lining materials, their applications, inspection of tank bottom lining etc.
API***3	Tank Inspection, Repair, Alteration, and Reconstruction	Guideline for inspection, repair, alteration, and reconstruction of above ground hydrocarbon and chemical storage tanks, made of steel. Minimum requirements for maintaining the integrity of welded or riveted, non-refrigerated, atmospheric, above ground storage tanks, are discussed.
API****0	Venting Atmospheric and Low-Pressure Storage Tanks	Guide for normal and emergency vapor venting requirements for above ground petroleum and petroleum product storage tanks, above ground and underground refrigerated storage tanks. The tanks discussed in the document are designed for low pressures ranging from full vacuum through *5 psig.
API****5	Cleaning Petroleum Storage Tanks	Guide for preparing, emptying, isolating,ventilating, atmospheric testing, cleaning, entering into, hotwork and recommissioning activities in, on and around atmospheric and low-pressure (up to *5 psig) above ground storage tanks containing flammable, combustible or toxic materials.
API****7	Evaporating Losses from External Floating Roof Tanks	Guide for estimating the total evaporation losses or atmospheric hydrocarbon emissions from external floating roof tanks containing multicomponent hydrocarbon mixtures or single component storage stocks.
API****9	Evaporating Losses from Internal Floating Roof Tanks	Summary of performances of internal floating covers to prevent evaporation losses. Effects of internal floating covers on tank operation as well as the provisions for gaging, sampling, and temperature reading are described in the document.
API****0	Overfill Protection for Petroleum Storage Tankss	Covers overfill protection for all aboveground storage tanks in petroleum facilities, including refineries, terminals, bulk plants and pipeline terminals that receive Class I (flammable) or Class II (combustible) liquids.
API****0	Measurements and Calibration of Petroleum Storage Tanks	Procedures for calibrating upright cylindrical tanks which are larger than a drum or a barrel. Procedures for making measurements are discussed in Part I of the document and methods of calculating the tank volume are given in Part II.

Specification for Construction
Construction method: chain flip-chip method is usually used for common vertical oil storage tank: construction preparation→material inspection→cutting→machining→inspection→welding of the center plate at the bottom of tank→welding of the arch edge plate at the bottom of tank→setting up the center post and umbrella stand→installation and welding of top ring→installation and welding of edge and steel angle→assembling of temporary arch bracket→installation of leading chain lifting device→installation and welding of arch roof→installation and welding of the lower circle→Jack-up the top circle shell plate→welding of circular seam→installation and welding of every circular seam→installation and welding of bottom circle, bottom plate and angle seam→installation and welding of edge plate of bottom plate→inspection→installation of accessories→vacuum test→test→settlement observation→hand over

Prefabrication&Asembling for Oil Tank
Prefabricating of tank: three are sample plates: one is for checking curvature of arch roof, chord length of which is no less than 2m; one is for checking the deformation of the edge of vertical weld seam, chord length of which is no less than 1m; one is for checking the deformation of vertical weld seam, chord length of which is no less than 1m. Assembling of tank: According to the sequence for installing oil tank, the lower surface of bottom plate should be done the anticorrosion work before installation of bottom plate. A cross center line should be drew up on the surface before layout of bottom plate. The deviation with the center line remarked by civil construction should be within the scope of permit.

Inspection Method
Inspection of welding and weld seam: To evaluate the welding process of butt joint, T fillet weld and tube plate according to JB******2 The evaluation of welding process of steel pressure vessel. To make the guide book of welding process in the site, the person who do the NDT for weld seam of oil tank. RT will be done according to the specification of GB******7 Radiogram and quality of butt joint welded by steel melt weld. Tank test: Vacuum test will be adopted for all bottom plates and the vacuum degree should not be less than *3Kpa. The penetrate test will be used to reinspect. To do tank water filling test, up and down test of floating disc and observation of foundation settlement. Then to close the holes of upper part temporarily and to open light holes on the roof and then to fill water into tank. The water should be fresh water and the temperature should be lower than 5℃. The pressure should be kept for hours. The water filling test, strength test and stability test for shell plate and roof plate: To close the light holes, foam holes and vent holes on the roof when the water level reaches to 1m and then to fill the water continuously. To observe the pressure through the pressure gauge on the roof. The stability test will be done after water filling test. When the water level reaches the maximum operation liquid level, to close the opening and drain the water slowly. When the negative pressure generated in the tank, to monitor the negative pressure number strictness. When the negative pressure number reaches **0mm, to stop draining water immediately and to fill water, making the pressure in the tank be normal. Crack detection: To do penetration test and MT for the fillet weld seam of joint angle and stiffening plate on the tank.

Country:	China
Model No:	-
FOB Price:	(Negotiable) Get Latest Price
Place of Origin:	-
Price for Minimum Order:	-
Minimum Order Quantity:	-
Packaging Detail:	-
Delivery Time:	-
Supplying Ability:	-
Payment Type:	-
Product Group :	Shipping Containers