The gland-type loose-fitting expansion joint is based on the original performance of the loose-fitting expansion joint, with the addition of a limiting device. At the point of maximum expansion in the gland-type loose-fitting expansion joint, a double nut locking mechanism is used.
Expansion Joint Classification:
Expansion joints are divided into two types: loose-fitting expansion joints and loose-fitting limited expansion joints. Loose-fitting expansion joints include: nut-type loose-fitting expansion joint AL, gland-type loose-fitting expansion joint AY, and flange-type loose-fitting expansion joint AF. Loose-fitting limited expansion joints include: single-flange loose-fitting limited expansion joint BF, double-flange loose-fitting limited expansion joint B2F, and detachable double-flange loose-fitting force-transmitting joint CC2F.
A loose-fitting expansion joint consists of a body, sealing ring, and tightening components, forming a device for connecting pipes with a loose fit. It is mainly used to absorb axial displacement and is a compensation joint that cannot withstand pressure thrust. A loose-fitting limited expansion joint consists of a loose-fitting expansion joint and a limiting short pipe. It can prevent leakage or damage to the compensation joint due to excessive displacement of the pipeline. It is mainly used for loose-fitting pipe connections that absorb axial displacement and withstand pressure thrust within the allowable displacement range.
| Nominal Diameter DN | External diameter Dw | external dimension | N-Th | |||
| Length | D | 0.25-1.6MPa | 2.5-6.4MPa | |||
| L1 | L | |||||
| 65 | 76 | 180 | 208 | 155 | 4-M12 | 4-M12 |
| 80 | 89 | 165 | ||||
| 100 | 108 | 195 | ||||
| 114 | 195 | |||||
| 125 | 133 | 225 | ||||
| 125 | 140 | 225 | 4-M16 | |||
| 150 | 159 | 220 | 255 | 4-M16 | 6-M16 | |
| 168 | 255 | |||||
| 200 | 219 | 310 | ||||
| 225 | 245 | 335 | ||||
| 250 | 273 | 223 | 375 | 6-M20 | 8-M20 | |
| 300 | 325 | 220 | 273 | 440 | ||
| 350 | 355 | 490 | 8-M20 | 10-M20 | ||
| 377 | 490 | |||||
| 400 | 406 | 540 | ||||
| 426 | 540 | 10-M20 | 12-M20 | |||
| 450 | 457 | 590 | ||||
| 480 | 590 | |||||
| 500 | 508 | 645 | ||||
| 530 | 645 | |||||
| 600 | 610 | 750 | ||||
| 630 | 750 | |||||
| 700 | 720 | 855 | 12-M20 | 14-M20 | ||
| Covering Sleeve: The way of using this Dresser Coupling Joint is to joint with the tube on both sides, no welding. It has a reasonable structure, and is sealed. it is very easy to install. | ||||||
PS:The above data is for reference only and applies to sizes from DN15 to DN4000. Please contact us immediately for more details!
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