Home » Flexible Metal Hose » Annular Corrugated Hose » Diameter 1/4inch To 1 1/4inch Stainless Steel Ss304 Ss316l Annular Corrugated Flexible Metal Hose in Coil

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Diameter 1/4inch To 1 1/4inch Stainless Steel Ss304 Ss316l Annular Corrugated Flexible Metal Hose in Coil

Annular bellows: Annular corrugated metal hose is made from longitudinally welded tubing but with the corrugations formed in parallel planes vertical to the axis of the hose. Size: DN12~DN32 Material: SS304,SS316L,SS321 Wall thickness:0.25mm,0.28mm
  • 1/4"~1 1/4"

  • Fustar

  • 83071000

Availability:
Quantity:
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Product Description

Diameter 1/4inch to 1 1/4inch stainless steel ss304 ss316l annular corrugated flexible metal hose in coil 


TECHNIQUE PARAMETER 

DN

I.D

O.D

mm

Pitch

Distance

Wall

Thickness

Weight

Min Bend Radius

R.(mm)

 

Type H

 Maxium         length

Per piece

mm

mm

inch

mm

Bellow

 

With 1 Ply Braid

mm

mm

 Kg/m

Static

Dynamic

 12

1/2

12

18±0.3

21

4

0.25

0.2

40

130

Annular

  No limited

 15

5/8

15

21.5±0.3

24.5

4

0.28

0.32

70

190

Annular

  No limited

 18

11/16

18

25±0.3

28

4.5

0.28

0.36

90

205

Annular

No limited

20

3/4

20

28±0.3

33

4.5

0.28

0.38

175

400

Annular

No limited

25

1

24.4

32.5±0.3

35

4.5

0.28

0.5

225

510

Annular

No limited

32

1.25

32

41±0.3

45

5

0.28

0.6

280

640

Annular

No limited


ANNULAR CORRUGATED FLEXIBLE METAL HOSE PROCESS 

TUBE 

The manufacturing process of corrugated flexible metal hose starts with a stainless steel strip that is rolled and the edges welded together to form a thin-walled,gas-tight tube.Fustar offers:

corrugated hose process.png

HOSE 

After the tube has been welded,corrugations are formed into the tube to make it flexible.There are two corrugation profiles,annular and helical.

    hose profile.png

Corrugations are formed into the tube either mechanically or hydraulically(Hydroforming)

Corrugation formed.png

Hydroforming enhances flexibility and cycle life,maintains wall thickness,reduces concentrated residual stress,and minimizes work hardening.Hydroforming is a clean process,using water to form the hose,while most other processes require lubrication. 


CORRUGATION PROCESS FOR EXTRAFLEX AND HYDRAFLEX PRODUCTS

In addition to our line of annular corrugated metal hose,Fustar bellows offers two helical hoses that are specially designed to maximize performance without the drawbacks of traditional,mechanically-formed helical hose.Rather than welding a tube and mechanically forming the corrugation,these products are made from a stainless steel strip that is formed before welding.Because it is not mechanically formed from a tube,this hose is extremely flexible and does not contain the residual stresses found in traditional mechanically-formed helical hose. 

corrugation process.png

Both Extraflex and Hydraflex are made by pre-forming the stainless steel strip,overlapping the material,and continuously resistance-welding the seam together.While Extraflex is made with one ply of stainless steel,Hydroflex is made with two plies for higher pressure ratings. 


HYDROFORMED FEATURES&BENEFITS 

· Feature - Hydroforming induces a minimum of residual stress in the hose wall,as compared to other methods of manufactuing

  Benefit - Increased of resistance to stress minimizes hose failures and significantly increase cycle life 


· Feature - A characteristic of hydroformed hose is a very uniform metal thickness throughout the corrugation profile.Mechanical forming can result in Significant variations in metal gauge 

  Benefit - Uniform wall thickness promotes even distribution of strain during flexing,thereby increasing hose longevity. 


· Feature - The hydroformed manufacturing method incorporates three seperate tests of the butt-welded hose seam

  Benefit - Ensures highest-quality hose and reduces premature product failure 


· Feature - Hydroforming minimizes work hardening of the alloy during the corrugating process 

  Benefit - Results in a more flexible hose and maintains proper alloy yield strength 


· Feature - Proprietary manufacturing process,combined with skilled workmanship,allow for the use of lighter gauge metals 

  Benefit - Allows for proper wall thickness,maximizing cycle life and flexibility 


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Currently, our products mainly include flexible metal hose, bellows expansion joint, corrugated pipe, metal compensator, fabric expansion joint, stainless steel braids, PTFE bellows, exhaust pipe and other products.

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Mobile(WhatsApp): +86-17321605009
Email: sales@jsbellows.com
Add: City East Development Zone, Jiangyan Area,Taizhou City, Jiangsu Province, China

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