Product Made in Japan
Manufacturer: Nakai Shoko
Model: YN

Applications

● Steel expansion and contraction of bridges water-stop
● Bridge wall height blocking to the joint water
● The median strip of the bridge to the joint water stop
● Building and multistory parking lot on deck concrete seam stop
● Waterproofing of the structure

Features

● U-shaped, the stress generated at the time of expansion and contraction can be alleviated. More over, retention is also possible.
● Abundant in number of types, it can cope with various installation gaps and expansion / contraction amount.
● The width of the mounting part is compact, it is easy to apply to various gapped dimensions. In addition, leakage prevention material is installed in the mounting part, it is possible to stop water completely.
● By removing the mounting nut, it can easily be replaced.
● In addition to perpendicular direction, it can correspond to movement in diagonal direction.
● The reinforcement type embeds a high strength breaker inside, so it has outstanding durability.
● Even in cold climates, there are materials with good trackability.
● The standard color is black, but color processing can be done.

Installation reference example

● Steel expansion and contraction unit <General section>
● Steel expansion and contraction device <End part>
In case
● Wall height column part
● Vertical joint	● Median strip	● Slab concrete seam

Geometry

Standard type				Reinforcement type
				In case
type	Allowable expansion / contraction amount (mm)	Bellows lid	Dimension table (mm)
			A	B	C	D	E	R
YN – 80	– 40 to + 40	S	120	40	40	30	17	20
YN-100	– 50 to + 50	S	130	50	40	30	17	25
YN-160	– 80 to + 80	M	160	80	40	50	17	40
YN-200	-100 to +100	M	200	100	50	50	22	50
YN-300	-150 to + 150	L	250	150	50	50	22	75
YN-400	-200 to + 200	L	320	200	60	100	27	100
YN-500	-250 to +250	L	370	250	60	100	27	125
YN-600	-300 to + 300	LL	560	440	60	50	27	220