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Flexible Hose Precautions for safe handling

  • フレキシブルホース 取り扱い上の注意 曲げない ねじらない

    Do not bend beyond minimum bending radius.
    Hose can be locally damaged and that could lead to the performance deterioration.

  • フレキシブルホース 取り扱い上の注意 曲げない ねじらない

    Do not bend around connection bracket.
    In case you bend around connection bracket, make sure that length as long as the hose OD is left straight.

  • フレキシブルホース 取り扱い上の注意 曲げない ねじらない

    Do not twist hose
    If you twist a hose, the hose can be locally damaged and that could lead to the performance deterioration.

Hose with blade

Please do not shrink hose with blade. Blade and hose are manufactured in close contact in order to receive bulge of hose by pressure. If you shrink the hose, blade loosens to separate from hose. This could cause breakage of hose when applying internal pressure.

Hose with blade

Please tighten up with the specified tightening torque. Because there is a possibility that malfunctions like below are caused, do not tighten up outside the scope of the specified tightening torque.

With not enough tightening torque.
It may not be possible to obtain sufficient sealing performance.
Bolt can come off due to vibration.

With excessive tightening torque
Gasket and O-ring can be damaged.
Bolt can tear apart.

List of recommended tightening torque

Code Nominal diameter of flange Bolt Recommended torque(N・m)
MTJ-020 VG20/VF20 M8 9.8~14.7
MTJ-025 VG25/VF25
MTJ-040 VG40/VF40
MTJ-050 VG50/VF50
MTJ-065 VG65/VF65 M10 19.6~24.5
MTJ-080 VG80/VF80
MTJ-100 VG100/VF100
MTJ-125 210A
MTJ-150 235A
MTC-034 CF34 M4 2.0~3.0
MTC-070 CF70 M6 6.9~9.8
MTC-114 CF114 M8 9.8~14.7
MTC-152 CF152

Recommended torque(N・m)

Hose with blade

Please use O-ring/Center Ring which is applicable to connection bracket. O-ring is not the attached part. If you need an attached part, please prepare by yourself or order with hose.

O-ring correspondence table(JIS VG flange)

Code Nominal diameter(A) O-ring
MTJ-020 VG20 V34
MTJ-025 VG25 V40
MTJ-040 VG40 V55
MTJ-050 VG50 V70
MTJ-065 VG65 V85
MTJ-080 VG80 V100
MTJ-100 VG100 V120
MTJ-125 VG125 V150
MTJ-150 VG150 V175

Center ring correspondence table(ISO KF flange )

Code Nominal diameter(A) Center ring
MTK-010 KF10 MCK-2010
MTK-016 KF16 MCK-2016
MTK-025 KF25 MCK-2025
MTK-040 KF40 MCK-2040
MTK-050 KF50 MCK-2050
MTK-080 KF80 MCK-2080
MTK-100 KF100 MCK-2100

Gasket

Please use an O-ring that is applicable to connection bracket. O-ring is not the attached part. If you need an attached part, please prepare by yourself or order with hose.

Gasket size correspondence table

CF flange Size (OD×ID) Material
CF34 21.3 x 16.3 Copper plate
(Oxygen-free copper)
CF70 48.1 x 36.9
CF114 82.4 x 63.7
CF152 120.5 x 101.8

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