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

Configured Part Number is shown.

 
Part Number
NK7500/5K-SS400-50A-560
NK7500/5K-SS400-65A-450
NK7500/5K-SS400-80A-600
NK7500/5K-SS400-100A-560
NK7500/5K-SS400-125A-500
NK7500/5K-SS400-150A-500
NK7500/5K-SS400-200A-520
NK7500/5K-SS400-250A-520
NK7500/5K-SS400-300A-520
NK7700/5K-SS400-50A-1370
NK7700/5K-SS400-65A-1070
NK7700/5K-SS400-80A-1330
NK7700/5K-SS400-100A-1320
NK7700/5K-SS400-125A-1380
NK7700/5K-SS400-150A-1380
NK7700/5K-SS400-200A-1380
NK7700/5K-SS400-250A-1380
NK7700/5K-SS400-300A-1380
Part NumberVolume DiscountDays to ShipRoHSNominal Bellows Pitch
(mm)
Plate Thickness
(t)
12 Day(s) or more 1050ASingle Bellow100.6
12 Day(s) or more 1065ASingle Bellow150.6
12 Day(s) or more 1080ASingle Bellow150.8
12 Day(s) or more 10100ASingle Bellow201.0
17 Day(s) or more 10125ASingle Bellow301.2
17 Day(s) or more 10150ASingle Bellow301.2
17 Day(s) or more 10200ASingle Bellow301.2
17 Day(s) or more 10250ASingle Bellow301.2
17 Day(s) or more 10300ASingle Bellow301.2
12 Day(s) or more 1050ADouble Bellows100.6
12 Day(s) or more 1065ADouble Bellows150.6
12 Day(s) or more 1080ADouble Bellows150.8
12 Day(s) or more 10100ADouble Bellows201.0
17 Day(s) or more 10125ADouble Bellows301.2
17 Day(s) or more 10150ADouble Bellows301.2
17 Day(s) or more 10200ADouble Bellows301.2
17 Day(s) or more 10250ADouble Bellows301.2
17 Day(s) or more 10300ADouble Bellows301.2

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Basic Information

Fitting Type Bellows shape Applicable Fluid Steam / Water / Gas / Oil / Air Connecting Part Type Flange
Welded Section (Inner Cylinder, Bellow) Material SUS304 Connecting Part Material SS400 Maximum Operating Pressure(MPa) 0.5
Flange Type JIS Flange

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