- 9 -
5. Hose Connection
5 -1. Cal cul at i on of r equi r ed hose l en gt h on wi ndi n g si de
Figure 8
Hose length on winding side = Winding Extension Connection length
+ Dead turn Connection length inside reel.
Winding length = The length wound onto the drum.
Extension length = The length from the hose's fixed point to the end of the winding,
which is not wound onto the drum.
Connection length = The length required to connect the mating equipment to the hose's fixed point.
Dead turn length = The length of the 2-3 dead turns.
Required dead turn length = ( Dr u m di a met er + H ose di a met er ) ×
π
×2 ~ 3
Number of dead turns
The length of 1 drum turn
5 -2. Hose co nnect i on
・
F l ui d l eakage ha za rd.
St op sup pl yi ng t he f l ui d t o t he hose reel bef ore t he w ork.
・
Do not i nst al l hose t o drum over w i ndi ng l engt h pl us dea d t ur n ( 2- 3 t urns) .
Make f ree space i n d rum , ot herw i se hose coul d spi l l out f rom drum cover.
If hose spi l l ed, i t cau ses acci dent s as a hos e cut t i ng.
・
Connect hose secur el y t o prevent t he f l ui d l eakage f rom conn ect ed part .
Winding length
Hose’s fixed point
Mating
equipment
Ex
te
ns
io
n
le
ng
th
Connection
length
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