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Join Force Bellows Co. Ltd.

Formed Bellows, Metallic Expansion Joints

Join Force Bellows Co. Ltd. is a technology company focused on the development and distribution of formed bellows, metallic expansion joints. With a competitive approach, our workforce strives to meet the expectations of our clients and offer them the desired end results. Our strict inspections and testing have ensured that all our metallic expansion bellow achieve a high level of performance even in harsh conditions. Our team is the innate strength of our organization. We guarantee the quality of our products, since we deal only with authorized and reliable formed bellows manufactures. The parts you buy from us will fit your needs perfectly. Welcome to contact with us if you are looking for highly efficient expansion joints.
Bellows Type Expansion Joints

JF-250 Series

Bellows Type Expansion Joints

In addition to this Flanged Ends Bellows Type Expansion Joints, we also supply Bellows Type Flexible Joints and Axial Expansion Joints with durable quality.
Features :

JF-250 Series - Bellows Type Expansion Joints (Flanged Ends)
One-ply bellows welded to pipe nipples and flanges, with internal sleeve & tie-rods (optional).
Designed to absorb axial movement of low/ medium pressure/ temperature pipeline.

JF-250 Series
Size Range DN15 ~ DN600 (1/2” ~ 24”)
Pressure/ Temperature rating 10 kg/cm2 at 120℃
Cycle Life Nc > 1,000 times

Construction
No. Parts 250SG 250S 250G 250N Material Option
1 Bellows S.S.304 S.S.316
2 Internal Sleeve S.S.304 S.S.316
3 Flange Carbon Steel S.S.304/ S.S.316
4 Tube Ends Carbon Steel S.S.304/ S.S.316
5 Tie Rods Carbon Steel S.S.304/ S.S.316

Specification :

Specification (Fitted with JIS 10K flanges)

Size OAL Thickness of Flange Bellows Length Axial Movement Axial Spring Rate Effective Area
mm ins mm mm mm mm N/mm cm2
15 1/2 250 12 125 +10 -25 8 4
20 3/4 250 14 125 +10 -25 11 6
25 1 250 14 125 +10 -25 17 9
32 1 1/4 350 16 180 +10 -40 18 13
40 1 1/2 350 16 180 +10 -40 23 21
50 2 350 16 180 +10 -40 29 32
65 2 1/2 350 18 180 +10 -40 46 50
80 3 350 18 180 +10 -40 53 67
100 4 350 18 180 +10 -40 76 123
125 5 350 20 180 +10 -40 81 177
150 6 350 22 180 +10 -40 116 259
200 8 350 22 180 +10 -40 137 415
250 10 350 24 180 +10 -40 194 661
300 12 350 24 180 +10 -40 218 907
350 14 350 26 180 +10 -40 369 1167
400 16 350 28 180 +10 -40 465 1509
450 18 350 30 180 +10 -40 518 1880
500 20 350 30 180 +10 -40 819 2326
550 22 350 32 180 +10 -40 895 2781
600 24 350 32 180 +10 -40 971 3276
※Other size, pressure, axial movement, material are available on request

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Join Force Bellows Co. Ltd. is a leading provider of formed bellows and performance products and is recognized throughout the hardware & metal products industries for its complete selection, superior customer care, and fast delivery. All our metallic expansion joints, metallic expansion bellow are precisely developed by a creative team of professionals as per contemporary market trends. Focusing on quality, we measure it as the one important goal to achieve for growth, development and progress. Having said that, we undertake each given task very precisely to gain result oriented solutions at each point of time. If you are looking for formed bellows, please do not hesitate to inform us.