Pressed Steel Tank

8/18/2019 Pressed Steel Tank

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Pressed Steel Tank


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Pressed Steel Tank

•

Pressed Steel Tank is very popular – Ease in erection

– Facility in transport

– Standard and fast construction

– Ease in dismantling and erection• Widely used for

• Storage of cold and hot water (400!000"#

• Types of Tank• Type ! $ll %anges e&ternal

• Type ' $ll %anges internal

• Type )ottom %anges internal and side %anges e&ternal

• Each of the tank will *e open top or closed top


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Pressed Steel Tank

• Pressed Steel Tank

– +esign in accordance with ,S -04 !..-

– /eight of the tank should *e less than m

– Formed *y 1oining pressed mild steel plates – Si2e of the plate !3'm !3'm

–

Two ways of formation of the plates• /eated uniformly in a furnace and formed in a

press

• Pressed cold


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Pressed Steel Tank

– 5oining of the plate• )y means of /e&agonal6 *lack 7nished *olts

– !'mm φ for capacity of !3'cu3m

– !4mm φ for capacity higher than !3'cu3m

–

Spacing 8 -0mm• Plates are 1oined together at the %anges 40

to 90mm wide

• Pressed s:uare

•

Pressed partly s:uare and partly at an angleof 40

• "orners are welded and no development ofcrack on cooling


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Pressed Steel Tank


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Pressed Steel Tank

– Stay arrangement• $ll the four sides of the tank supported at the 1unction of two or more plates

• Stays connecting the side plates to the *ottom

plates are called diagonal stays. These are soarranged so as not to intersect each other3

• Stays connecting the two s:uare sides are calledhorizontal stays. These may *e omitted if thetop cover acts as an e;ective tie3

• Stays are made of mild steel rolled sections <usually rods3

• Stays are *olted to the %anges or to the mild steelcleats attached to the tank plates3


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Pressed Steel Tank

– The edges of the %anges should *e 7nished%ush with each other

– $ll the 1oints are made leak proof *yproving a material insolu*le in the li:uid to

*e stored and capa*le of withstanding anytemperature variations in the stored li:uid3


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Pressed Steel Tank

F=$>?E 5@,>T (SAB$CE+#

F=$>?E 5@,>T (P$CT=DSAB$CE+#


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Pressed Steel Tank –

Supporting arrangement• )y supporting the tank over rolled steel 1oists forming

*eams and architraves mounted on dwarf pillars


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Pressed Steel Tank

– Supporting arrangement• )y providing dwarf walls of *rick or concrete with footings

to suit the depth of tank and nature of the ground3

• +warf wall for 3m to m deep tanks should have a mildsteel capping plate to provide *earing surface on the wall3


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Pressed Steel Tank

– Supporting arrangement•

)y providing two tiers of *eams6 *elow the tankand placed over suita*ly placed columns

– @ther re:uirements• $ manhole of 40mm diameter or 40mm

40mm in si2e to *e provided in the roof

• Colled steel *earers or trusses are used tosupport the roof coverings

• 400mm mild steel ladder is provided wheredepth is more than '3m3


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Pressed Steel Tank

– +esign•

From the given capacity6 a tank of suita*le si2ewith all dimensions multiple of !3'm

• Si2e may *e o*tained from Ta*le ! to 4 of ,S -043

– Stay +esign

Pressed Steel Tank

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