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NFK NK-7400 Expansion Joints (Universal Type)

Product Made in Japan
Manufacturer: NFK
Model: NK-7400

NFK expansion joints are used in gas and liquid transport system lines used by steel making, chemical and industrial plants to transport substances such as air, water, gases, steam, oil and exhaust gases. They can compensate for expansion and contraction caused by temperature differences in air-conditioning/sanitation lines in buildings and other structures. They also handle conditions such as line center misalignment, vibrations, foundation subsidence and earthquakes.

Feature

The bellows connect the two, lateral move performance is large, and it is structure prevent extension and thrust in the tie-rod.
Applicable fluid: Gas, Water, Air, Steam
Applicable bellows: MF, HF, iO, E
Material: SUS304, SUS316L,
*Please contact us for material.
Standard: JIS, ANSI, DIN

NK-7400

NK-7400

Materials

① Bellows Stainless Steel
② End Pipe Carbon steel, Stainless Steel
③ Flange Carbon steel, Stainless Steel
④ Reinforcing Ring Carbon steel, Stainless Steel
⑤ Guide Flange Carbon steel, Stainless Steel
⑥ Neck Ring Carbon steel, Stainless Steel
⑦ Common Connecter Carbon steel, Stainless Steel
⑧ Tie Rod Carbon steel, Stainless Steel
⑨ Shipping Bolt Carbon steel, Stainless Steel
⑩ Beam Carbon steel, Stainless Steel
⑪ Holder Carbon steel, Stainless Steel
⑫ Stopper Carbon steel, Stainless Steel
⑬ Spherical Washer Carbon steel, Stainless Steel

Specification table

X = Axial Movement

DN Length(mm)
Y=50 Y=100 Y=150 Y=200 Y=250 Y=300
50 600 800 1000 1100 1200 1400
65 650 850 1000 1200 1400 1600
80 750 1000 1300 1400 1700 1800
100 850 1100 1300 1500 1700 1800
125 750 1000 1200 1300 1500 1600
150 800 1050 1350 1450 1600 1800
200 900 1200 1400 1700 1800 2050
250 1000 1300 1500 1700 1800 2100
300 1050 1400 1600 1800 2000 2300
350 1100 1500 1700 1900 2150 2450
400 1200 1600 1900 2100 2400 2700
450 1250 1700 2000 2200 2500 2900
500 1400 1800 2100 2400 2700 3100
550 1200 1600 1850 2000 2300 2600
600 1300 1700 1900 2100 2400 2700

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