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NK-6500/7700 Outer Cylinder Expansion Joint

NK-6500/7700 Outer Cylinder Expansion Joint

The bellows is covered by an inner cylinder and outer cylinder, preventing buckling even with substantial expansion/contraction. NK-7500 is a single-bellows type, while NK-7000 is a double-bellows type.

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Part Number

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Part Number
NK7500/5K-SS400-250A-520
NK7700/5K-SS400-250A-1380
Part NumberStandard Unit PriceVolume DiscountShipping Days?RoHSNominal Bellows Pitch
(mm)
Plate Thickness
(t)

1,028.85 €

19 Days 10250ASingle Bellow301.2

2,343.61 €

19 Days 10250ADouble Bellows301.2

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Basic information

Fitting type Bellows shape Applicable Fluids Vapor / Water / Gas / Oil / Air Types of connection parts Flange
Welded Section (Inner Cylinder, Bellow) Material Stainless Steel (EN 1.4301 Equiv.) Connection parts material EN 1.0038 Equiv. Max Operating Pressure(MPa) 0.5
Flange Type JIS Flange

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