Duct Bank Light | Line up of Products | Cable conduit materials

Duct Bank Light is unit-type multi-hole duct designed for streamlining processes and cost reduction.

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Size
Structure
How to use
Advantages of Duct Bank Light
Installation
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Size

Product No.	Inner pipe (Φ50)					Inner pipe (Φ80)					Inner pipe (Φ100)					Inner pipe (Φ150)
	Size (approx. in mm)				Reference weight (approx. in kg/m)	Size (approx. in mm)				Reference weight (approx. in kg/m)	Size (approx. in mm)				Reference weight (approx. in kg/m)	Size (approx. in mm)				Reference weight (approx. in kg/m)
	H	W	a	b	Reference weight (approx. in kg/m)	H	W	a	b	Reference weight (approx. in kg/m)	H	W	a	b	Reference weight (approx. in kg/m)	H	W	a	b	Reference weight (approx. in kg/m)
FK-□21 NFK-□21	100	200	80	80	11	140	272	119	118	18	180	333	149	155	24	230	475	215	215	43
FK-□22 NFK-□22	180				18	258				32	335				42	445				80
FK-□23 NFK-□23	260				26	376				45	490				60	660				117
FK-□31 NFK-□31	100	280	80	80	14	140	391	119	118	25	180	485	149	155	34	230	690	215	215	62
FK-□32 NFK-□32	180				24	258				43	335				60	- (460)	- (690)	- (215)	- (215)	- (123)
FK-□33 NFK-□33	260				34	376				61	490				85	- (690)	- (690)	- (215)	- (215)	- (185)

（Note）FK is a general type. NFK uses a flame-retardant type of inner pipe.

（Note）The numbers inside the □ of the product number correspond to the inner pipe sizes
　φ50 → 05, φ80 → 08, φ100 → 10, φ150 → 15.

：The φ150 three-row type is only available in a single-layer type. For designs and constructions with two or more layers, please combine single-layer types.

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Structure

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How to use

Excavate to the width specified in the design and compact the floor surface to ensure it is level.

Installation procedure

① Install the lower structure unit.
② Install the inner pipe.
Use long pieces of inner pipe as much as possible.
③ Install the middle structure unit.
At this time, shift it by 1/2 in the longitudinal direction.
④ Repeat steps ② and ③ as necessary, and finally cover it with the upper unit.
⑤ After all units are assembled, insert two pins diagonally into each structure unit.

※ Adjust the length by cutting at the wall section, as there may be discrepancies in length.

Manhole wall treatment

By placing the structural unit within the wall thickness and applying mortar, the structure becomes resilient to shear loads caused by uneven settlement and earthquakes.