KRS-23 PN 16

Uni. Flanged With Tierods

Lateral Expansion Joints are expansion elements designed to absorb lateral movements, created by combining one or two angular expansion joints in a special configuration. These joints effectively control thermal expansion occurring in a plane perpendicular to the axial direction of the pipeline, thereby maintaining the structural integrity of the system.

In lateral expansion joints, the amount of expansion that can be absorbed increases proportionally with the distance between the bellows. This feature offers flexible solutions in system design and allows for customized applications tailored to different expansion requirements.

These types of expansion joints deliver high performance in systems where significant lateral movement occurs. In particular, system designs that incorporate multiple lateral expansion joints offer some of the most effective and safest solutions for absorbing thermal expansion over long distances.

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Technical Information

Standard Production: AISI 321 – DIN 1.4541
Custom Production: AISI 304 (DIN 1.4541), AISI 309 (DIN 1.4828), AISI 316 (DIN 1.4401), AISI 316 Ti (DIN 1.4571), etc.

Design Pressure: 16 BAR
Design Temperature: –196 to +550 °C

Standard Flange: Rst 37-2 (DIN 1.0038)
Custom Flange: Stainless Steel according to DIN – BS – EN – ANSI standards, etc.

Standard Hinge: Rst 37-2 (DIN 1.0038)
Custom Hinge: AISI 304 (DIN 1.4541), AISI 309 (DIN 1.4828), AISI 316 (DIN 1.4401), AISI 316 Ti (DIN 1.4571), etc.

Brush Brush

Technical Drawing

Cog Cog

Applications

Lateral expansion joints absorb lateral movements that occur in piping systems, thereby reducing stress and vibration-induced noise within the system. They are reliably used in all types of machinery, engines, pumps, industrial process lines, exhaust systems, gas and water pipelines, as well as in potable water applications.

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Painting Information

All bellows, hinge, and flange components are coated with a special protective paint against corrosion, regardless of size. This coating ensures long-term durability, especially in systems exposed to outdoor environmental conditions. Surface treatments are meticulously applied in full compliance with quality and safety standards.

Attention Attention

Special Note

Design temperatures can be increased up to +950 °C upon request. For special operating conditions, please contact our technical team. For flange dimensions, refer to the “Useful Technical Tables” section. Product weights are subject to a tolerance of ±10%.

Diameter Length Oval Flange Oval Flange H Lateral Movement +/- Lateral Spring Rate Axial Movement +/- Bellows Effective Area Flange Center to center Flange Thickness Flange Hole Quantity Hole Ø Approx. Weight
25 350 115 160 25 0.4 45 12 85 16 4 14 8.4
25 440 115 160 50 2.8 45 18 100 16 4 18 8.6
25 590 115 160 75 1.2 45 24 110 16 4 18 9.3
25 740 115 160 100 0.6 45 24 110 16 4 18 9.6
32 350 140 185 25 0.6 45 18 100 16 4 18 9.9
32 440 140 185 50 2.8 45 18 100 16 4 18 10.2
32 590 140 185 75 1.2 45 24 110 16 4 18 10.9
32 740 140 185 100 0.6 45 24 110 16 4 18 11.2
40 360 150 195 25 0.5 45 24 110 16 4 18 11.6
40 450 150 195 50 2.9 45 24 110 16 4 18 12.0
40 600 150 195 75 1.3 45 30 125 18 4 18 12.7
40 750 150 195 100 0.7 45 30 125 18 4 18 13.0
50 370 165 215 25 0.6 45 18 100 16 4 18 13.5
50 450 165 215 50 3.1 45 37 125 18 4 18 14.0
50 600 165 215 75 1.4 45 50 150 18 4 18 14.8
50 750 165 215 100 0.8 45 50 150 18 4 18 15.5
65 370 185 230 25 0.6 45 58 145 18 4 14 15.2
65 460 185 230 50 2.2 45 58 160 20 8 18 16.4
65 605 185 230 75 1.0 45 82 160 20 8 18 17.0
65 750 185 230 100 0.7 45 82 160 20 8 18 18.0
80 380 200 275 25 1.6 45 82 160 20 8 18 18.0
80 470 200 275 50 5.5 45 82 160 20 8 18 19.1
80 615 200 275 75 2.8 45 82 160 20 8 18 20.3
80 760 200 275 100 1.6 45 82 160 20 8 18 21.5
100 400 220 300 25 1.9 45 134 180 20 8 18 20.3
100 490 220 300 50 10.5 45 134 180 20 8 18 22.6
100 635 220 300 75 5.5 45 134 180 20 8 18 23.5
100 780 220 300 100 2.7 45 134 180 20 8 18 25.0
125 440 250 345 25 2.0 45 192 210 22 8 18 33.5
125 675 250 345 50 8.8 45 192 210 22 8 18 37.4
125 915 250 345 75 4.5 45 192 210 22 8 18 40.5
125 1140 250 345 100 2.8 45 192 210 22 8 18 43.3
150 510 285 385 25 1.8 45 265 240 22 8 18 45.0
150 700 285 385 50 13.5 45 265 240 22 8 18 47.7
150 940 285 385 75 6.8 45 265 240 22 8 18 51.3
150 1180 285 385 100 3.8 45 265 240 22 8 18 56.0
200 550 340 445 25 6.2 45 442 295 24 12 22 75.0
200 710 340 445 50 58.7 45 442 295 24 12 22 81.7
200 950 340 445 75 30.5 45 442 295 24 12 22 89.0
200 1180 340 445 100 16.5 45 442 295 24 12 22 97.2
250 560 405 520 25 7.3 45 683 355 26 12 26 102.5
250 720 405 520 50 74.5 45 683 355 26 12 26 112.5
250 960 405 520 75 33.5 45 683 355 26 12 26 122.5
250 1190 405 520 100 19.0 45 683 355 26 12 26 132.0
300 590 460 575 25 32.2 45 320 90 28 12 26 113.5
300 750 460 575 50 30.0 45 320 90 28 12 26 118.0
300 990 460 575 75 26.1 45 320 90 28 12 26 127.5
300 1220 460 575 100 25.5 45 320 90 28 12 26 140.0
350 600 520 710 25 41.2 45 470 100 30 16 26 137.5
350 770 520 710 50 41.0 45 470 100 30 16 26 144.0
350 1010 520 710 75 33.5 45 470 100 30 16 26 158.0
350 1240 520 710 100 25.5 45 470 100 30 16 26 170.0
400 610 580 770 25 59.2 45 525 145 32 16 30 163.0
400 780 580 770 50 59.0 45 525 145 32 16 30 175.0
400 1020 580 770 75 48.3 45 525 145 32 16 30 188.0
400 1290 580 770 100 31.5 45 525 145 32 16 30 210.0
450 630 640 810 25 80.5 45 585 240 32 20 30 221.0
450 800 640 810 50 80.2 45 585 240 32 20 30 235.0
450 1060 640 810 75 66.0 45 585 240 32 20 30 255.0
450 1180 640 810 100 38.7 45 585 240 32 20 30 275.0
500 640 715 960 25 107.5 45 650 300 34 20 33 295.0
500 810 715 960 50 107.3 45 650 300 34 20 33 315.0
500 1090 715 960 75 63.1 45 650 300 34 20 33 340.0
500 1350 715 960 100 37.4 45 650 300 34 20 33 355.0