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The lateral large tie rod metal corrugated expansion joint belongs to the category of pipe corrugated compensators. It is mainly used for compensating for lateral displacement in pipelines, balancing the lateral tensile forces generated by thermal expansion and contraction, and is specifically installed at pipe bends, L-shaped bends, and Z-shaped turns.
1. Stainless steel corrugated pipes at both ends (304 stainless steel)
2. Middle connecting short pipe
3. Stainless steel large tie rod and adjusting nut
4. Connecting flanges or welded pipes at both ends
5. Load-bearing fixed end plate
Compensates for lateral displacement only, with a large compensation stroke.
Self-balancing thrust, eliminating the need for heavy-duty supports.
High temperature and high pressure resistant, suitable for steam and hot water pipelines.
Vibration resistant, highly stable, and not easily damaged.
Reduces pipeline tensile stress, protecting valves and equipment.
Reduces the risk of pipeline cracking and extends service life.
When the pipeline expands due to heat and contracts due to cold, causing lateral displacement, the flexible bending deformation of the corrugated pipes on both sides absorbs the lateral displacement of the pipeline; the external large tie rod bears the internal pressure thrust of the pipeline and will not transfer the pressure to the support, reducing the load-bearing pressure on the support.
1. Bends in steam pipelines for thermal heating
2. Dedicated for L-shaped and Z-shaped bends in pipelines
3. High-temperature pipelines in power plants and chemical plants
4. Overhead pipelines and underground pipelines
5. Locations affected by pipeline foundation settlement and displacement
1. Can only be installed at pipeline bends; not suitable for straight pipe sections.
2. Remove transport fixing rods after installation, retaining the main load-bearing rod.
3. Install guide supports at both ends; heavy-duty fixing supports are not required.
4. Horizontal installation is preferred; do not twist or bend during installation.
| #Instructions for Use: The large tie-rod lateral bellows compensator can compensate for lateral displacement and small angular displacement in bent pipe sections, but is not used to compensate for angular displacement. This compensator consists of a connecting pipe, two bellows, and a large tie rod. It can absorb lateral displacement in any plane of the piping system. The displacement spherical nut rotates around the spherical washer, while the tie rod still has the capacity to withstand internal pressure thrust. Note: If flanges are required to conform to JB81-59 standard, they can be supplied according to user requirements or other standards. Operating temperature ≤420℃, fatigue life 1500 cycles |
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| Nominal diameter DN | Wave number | pressure level | Axial compensation (mm) / Stiffness (N) (mm) | Maximum outer diameter | |||||
| Product lengthmm | |||||||||
| 1200 | 1500 | 2000 | 2500 | 3000 | 3500 | ||||
| 100 | 4+4 | 0.6MPa | 177/2.2 | 243/1.2 | 341/0.6 | 447/0.3 | 310 | ||
| 1.0MPa | 163/2.2 | 224/1.2 | 325/0.6 | 427/0.3 | |||||
| 1.6MPa | 91/4 | 127/2 | 187/1 | 247/0.6 | |||||
| 2.5MPa | 94/8 | 132/5 | 194/2 | 256/1 | |||||
| 125 | 4+4 | 0.6MPa | 172/2.8 | 239/1.5 | 351/0.7 | 463/0.4 | 360 | ||
| 1.0MPa | 161/2.8 | 224/1.5 | 330/0.7 | 435/0.4 | |||||
| 1.6MPa | 99/11 | 140/6 | 209/3 | 277/2 | |||||
| 2.5MPa | 94/11 | 113/6 | 197/3 | 262/2 | |||||
| 150 | 4+4 | 0.6MPa | 186/6 | 259/3.2 | 382/1.6 | 506/1 | 410 | ||
| 1.0MPa | 122/10 | 170/6 | 251/3 | 322/2 | |||||
| 1.6MPa | 108/12 | 153/6 | 230/3 | 307/2 | |||||
| 2.5MPa | 82/22 | 117/12 | 176/5 | 234/3 | |||||
| 200 | 4+4 | 0.6MPa | 138/9.4 | 196/4.9 | 291/2.25 | 388/1 | 480 | ||
| 1.0MPa | 101/20 | 143/11 | 213/5 | 283/3 | |||||
| 1.6MPa | 75/42 | 108/21 | 164/10 | 220/6 | |||||
| 2.5MPa | 59/69 | 86/35 | 130/16 | 176/9 | |||||
| 250 | 4+4 | 0.6MPa | 128/21 | 188/10 | 287/5 | 387/3 | 580 | ||
| 1.0MPa | 109/35 | 159/18 | 243/8 | 328/5 | |||||
| 1.6MPa | 76/68 | 116/33 | 182/14 | 249/8 | |||||
| 2.5MPa | 64/122 | 98/58 | 154/25 | 210/14 | |||||
| 300 | 4+4 | 0.6MPa | 94/50 | 144/24 | 228/10 | 313/6 | 660 | ||
| 1.0MPa | 127/39 | 202/17 | 277/10 | 352/6 | |||||
| 1.6MPa | 169/28 | 169/28 | 234/15 | 299/10 | |||||
| 2.5MPa | 91/113 | 148/47 | 215/26 | 262/16 | |||||
| 350 | 4+4 | 0.6MPa | 83/73 | 130/34 | 210/14 | 292/8 | 750 | ||
| 1.0MPa | 117/54 | 190/23 | 263/13 | 337/8 | |||||
| 1.6MPa | 95/96 | 160/38 | 225/20 | 291/13 | |||||
| 2.5MPa | 81/158 | 135/63 | 190/34 | 246/21 | |||||
| 400 | 4+4 | 0.6MPa | 122/45 | 199/19 | 276/10 | 354/7 | 780 | ||
| 1.0MPa | 109/74 | 177/31 | 246/17 | 315/11 | |||||
| 1.6MPa | 85/130 | 144/52 | 202/28 | 262/17 | |||||
| 2.5MPa | 112/88 | 157/47 | 203/29 | 250/20 | |||||
| 450 | 4+4 | 0.6MPa | 129/40 | 208/17 | 289/9 | 369/6 | 870 | ||
| 1.0MPa | 109/68 | 176/29 | 244/16 | 312/10 | |||||
| 1.6MPa | 115/9 | 162/48 | 210/29 | 258/20 | |||||
| 2.5MPa | 86/198 | 122/105 | 158/65 | 193/44 | |||||
| 500 | 4+4 | 0.6MPa | 119/53 | 193/22 | 267/12 | 342/8 | 920 | ||
| 1.0MPa | 99/90 | 160/38 | 222/21 | 285/13 | |||||
| 1.6MPa | 101/127 | 43/66 | 186/41 | 229/27 | |||||
| 2.5MPa | 76/284 | 107/149 | 140/91 | 172/62 | |||||
| 600 | 4+4 | 0.6MPa | 108/108 | 181/43 | 256/23 | 331/14 | 1010 | ||
| 1.0MPa | 83/220 | 319/88 | 197/47 | 254/29 | |||||
| 1.6MPa | 98/182 | 143/93 | 187/56 | 232/38 | |||||
| 2.5MPa | 82/307 | 119/157 | 156/95 | 193/63 | |||||
| 700 | 4+4 | 0.6MPa | 161/64 | 228/34 | 295/21 | 263/14 | 1140 | ||
| 1.0MPa | 117/132 | 165/70 | 214/43 | 264/29 | |||||
| 1.6MPa | 81/287 | 199/144 | 157/86 | 196/57 | |||||
| 800 | 4+4 | 0.6MPa | 141/93 | 201/49 | 262/30 | 323/20 | 1240 | ||
| 1.0MPa | 102/182 | 146/95 | 190/59 | 235/40 | |||||
| 1.6MPa | 69/402 | 103/200 | 137/119 | 170/79 | |||||
| 900 | 4+4 | 0.6MPa | 179/97 | 242/56 | 305/37 | 1370 | |||
| 1.0MPa | 139/171 | 188/99 | 237/64 | ||||||
| 1.6MPa | 103/369 | 139/213 | 176/139 | ||||||
