KRS-1 30-60mm

Loose Flanged

Rotating flanged expansion joints are special expansion elements that belong to the axial compensator group and are designed to absorb thermal expansions occurring in pipelines along the pipe axis. These compensators offer ease of installation thanks to their flanged connection systems and provide practical advantages, especially in systems that require regular maintenance.

To effectively control thermal expansion, the piping system is divided into various expansion zones in accordance with engineering principles. Each expansion zone is isolated from the others through fixed points, thereby increasing the stability of the system. With this structure, the axial movement occurring in each expansion zone is absorbed and balanced by rotating flanged expansion joints that are specifically positioned for that zone.

Clipboard Clipboard

Technical Information

Standard Production : AISI 321 (DIN 1.4541)
Special 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 + 550 C

Standard Flange : Rst 37-2 (DIN 1.0038)  PN 2.5 – PN 6 – PN 10 – PN 16
Special Flange : Stainless Steel DIN – BS – EN – ANSI etc.

Standard Liner : AISI 321 – DIN 1.4541
Special Liner : 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

To absorb axial expansions, reduce stress and noise in the system, all machines, all motors, all pumps, industrial applications, exhaust applications, gas and water lines, drinking water lines, etc.

Palette Palette

Paint Information

Flanges between DN 25–DN 300 are cadmium plated. For sizes DN 300 and above, specially painted flanges resistant to corrosion are used. It offers high durability and long-lasting use for industrial systems.

Attention Attention

Special Note

If requested, the design temperature can be increased to +950°C. Contact us for special requests. Flange tables are in the technical tables section. Product weights have a tolerance of ±10%. Liner is recommended for abrasive fluids.

Diameter
DN Ø		 Length
L (mm)		 Inner / Outer
Ø d / Ø Do (mm)		 Movement Total +/-
AX (mm)		 Spring Rate
AX (N/mm)		 Bellows Effective Area
(cm²)		 Flange Outer Ø
mm)		 Flange Center to Center
(mm)		 Flange Thickness
(mm)		 Flange Hole Quantity Hole Ø
(mm)		 Approx. Weight
(kg)
Ø d (mm) Ø Do (mm)
25 120 36 45 +10 -20 25 12 115 85 16 4 14 1,30
32 120 44 53 +10 -20 31 18 140 100 16 4 18 2,50
40 120 50 62 +10 -20 39 24 150 110 16 4 18 3,40
50 120 61 77 +10 -20 43 37 165 125 18 4 18 4,70
180 61 77 +20 -40 45 6,10
65 120 77 97 +10 -20 49 58 185 145 18 4 18 5,90
180 77 97 +20 -40 55 6,40
80 120 90 115 +10 -20 38 82 200 160 20 8 18 7,80
180 90 115 +20 -40 25 8,60
100 120 117 146 +10 -20 35 134 220 180 20 8 18 8,00
180 117 146 +20 -40 22 134 220 180 20 8 18 9,10
125 120 142 170 +10 -20 31 192 250 210 22 8 18 10,80
180 142 170 +20 -40 21 192 250 210 22 8 18 12,10
150 130 169 199 +10 -20 28 265 285 240 22 8 22 13,40
190 169 199 +20 -40 17 265 285 240 22 8 22 15,90
200 140 220 254 +10 -20 24 442 340 295 24 12 22 18,10
200 220 254 +20 -40 15 442 340 295 24 12 22 22,10
250 140 275 315 +10 -20 25 683 405 355 26 12 26 24,80
200 275 315 +20 -40 14 683 405 355 26 12 26 29,80