Expansion Joints

NK-6500・6600・6700

general-purpose type

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Feature

This product welds a pipe to a bellows.
Applicable fluid: Exhaust gas Air Low pressure steam Water
Applicable bellows: MF,iO
Material: SUS304 SUS316L SUS310S
*Please contact us for material.
Standard: JIS, ANSI, DIN

NK-6500

materials

①Bellows Stainless Steel
②End Pipe Carbon steel, Stainless Steel
③Inner Sleeve Stainless Steel
④Flange Carbon steel, Stainless Steel
⑤Holder Carbon steel, Stainless Steel
⑥Shipping Bolt Carbon steel, Stainless Steel

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NK-6600

materials

①Bellows Stainless Steel
②End Pipe Carbon steel, Stainless Steel
③Inner Sleeve Stainless Steel
④Flange Carbon steel, Stainless Steel

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NK-6700

materials

①Bellows Stainless Steel
②End Pipe Carbon steel, Stainless Steel
③Inner Sleeve Stainless Steel

View Steel Types

Specification table

X=Axial Movement

DN Length(mm) Resisting
pressure
X=10 X=15 X=20 X=25 X=30 Mpa
50 230 290 350 1.0
65 175 220 250 300 330 0.5
80 200 250 310 360 400 0.9
90 200 250 310 360 400 0.9
100 200 260 300 360 400 0.8
125 220 250 280 340 370 0.5
150 220 250 280 340 370 0.5
175 220 250 280 340 370 0.5
200 220 250 280 340 370 0.5
250 220 250 280 340 370 0.5
300 240 270 300 360 390 0.5
350 230 270 310 350 390 0.45
400 230 270 310 350 390 0.45
450 230 270 310 350 390
500 250 300 350
550 250 300 350
600 250 300 350

The drawing can be downloaded from the link below.

Download drawing
Download Drawing Cover

Download specification

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