tight head steel drum crystalline, porus grayish white to gray zn 3(po 4) 2 ・ 4h 2 o zn 2fe(po 4)...
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Used for chemical products of general quality, petroleum, gasoline and other liquid oils such as lubricating oil.
①Triple seaming is a sturdy seaming method suited for drums containing dangerous goods.
②Internal cleanliness has been enhanced by the application of a full automatic production process and phosphate coating treatment system.
Tight HeadSteel Drum
【Phosphate Coating Treatment】Phosphate coating treatment is applied to both internal and external surfaces of universal steel drums. Two types of phosphate coating treatment, zinc-phosphate coating and iron- phosphate, are available. Their physical properties are shown in the table below. Selection between these two should be made according to the intended use of the drums.
ClassGauge
[mm]
Internaldiameter
[mm]
D1
Diameter overbottom chime
[mm]
D3
Total drumheight[mm]
H1
Depthof top
h2
Clearancefrom floor
[mm]
h3
Capacity
[L]
Mass[kg]
(min.)
Class H
Class M
Class LM
Class L
1.6
1.2
1.0/1.2
1.0
27.5
20.5
18.0
17.0
566
±2
4
(min.)
212
(min.)
300
±3(a)
890
±5
585
(max.)
585
(max.)
M a j o r A p p l i c a t i o n
Te c h n o l o g y
■JIS Z 1601
h4H1 D1
D2
D3
h3
Inner Thread Type Closure External Thread Type Closure
Gasket
Plug
Flange
Top end
Plug
Gasket
Composition ofcoating layer
Zinc-phosphating
Crystalline, porus
Grayish white to gray
Zn3(PO4)2・4H2OZn2Fe(PO4)2・4H2O
【Characteristics of Phosphate Coating】
Iron-phosphating
Non-crystalline
FePO4・2H2Oγ-Fe2O3
Color tone
Structure ofcoating layer
Interface color ofyellowish gold to
purple blue
[mm]
D2
Externaldiameter overrolling hoops
Notes (a) The depth of the top small be such that the closures and capseals/overseals do not protrude above the chime.
[mm]
h4
Distancebetweenbeads
NIPPON STEEL & SUMIKIN DRUM CO.,LTD.
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