LN™ Rotary Joints
The LN rotary joint is designed for steam service and is commonly applied to paper dryers, synthetic fiber rolls, food processing dryers, and other installations where external framework is available for support. Using two external rods for support, the LN is available in either single- or dual-flow applications with a rotating syphon pipe. Sizes range from 1/2” to 8” and the steam joint is rated up to 650° F (343° C), 510 psig (35 bar), and 200 RPM.
Features
- Designed for steam service
- Renewable wear plate
- External rod-supported
Benefits
- Application specific
- Lower maintenance and repair cost
- Easy installation
Type: L-NAR Specifications
 |
Fluid | Usual Pressure | Max. Pressure | Max. Temperature | Max. Speed |
|---|---|---|---|---|---|
| Steam/Water | 2.0MPa | 3.5MPa | 288°C | 550rpm |
Type: L-NARQ型
Unit:mm
| Type | Size(K) | M | P | S | C | D | F | G | H | J | N | O | Support rod size | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reg. | Min. | MaX. | |||||||||||||
| 2550L-NARQ | 2" | 1 1/2" | 1" - 1 1/4" | 1/2" - 1" | 172 | 134 | 70 | 132 | 250 | 299 | 197 | 197 | 222 | 20 | 19 |
| 2550L4-NARQ | 2" | 1 1/2" | 1" - 1 1/4" | 1/2" - 1" | 172 | 134 | 70 | 132 | 250 | 299 | 197 | 197 | 336 | 20 | 19 |
| 2550L6-NARQ | 2" | 1 1/2" | 1" - 1 1/4" | 1/2" - 1" | 172 | 134 | 70 | 132 | 250 | 299 | 197 | 197 | 394 | 20 | 19 |
| 2600L-NARQ | 2 1/2" | 2" | 1" - 1 1/4" | 1/2" - 1 1/4" | 184 | 150 | 74 | 140 | 270 | 324 | 210 | 210 | 241 | 20 | 19 |
| 2600L4-NARQ | 2 1/2" | 2" | 1" - 1 1/4" | 1/2" - 1 1/4" | 184 | 150 | 74 | 140 | 270 | 324 | 210 | 210 | 349 | 20 | 19 |
| 2600L8-NARQ | 2 1/2" | 2" | 1" - 1 1/4" | 1/2" - 1 1/4" | 184 | 150 | 74 | 140 | 270 | 324 | 210 | 210 | 486 | 20 | 19 |
| 2600L11-NARQ | 2 1/2" | 2" | 1" - 1 1/4" | 1/2" - 1 1/4" | 184 | 150 | 74 | 140 | 270 | 324 | 210 | 210 | 530 | 20 | 19 |
| 2700L-NARQ | 3" | 2 1/2" | 1" - 1 1/2" | 3/4" - 1 1/2" | 200 | 179 | 90 | 158 | 305 | 374 | 241 | 235 | 260 | 26 | 25 |
| 2700L4-NARQ | 3" | 2 1/2" | 1" - 1 1/2" | 3/4" - 1 1/2" | 200 | 179 | 90 | 158 | 305 | 374 | 241 | 235 | 375 | 26 | 25 |
| 2700L6-NARQ | 3" | 2 1/2" | 1" - 1 1/2" | 3/4" - 1 1/2" | 200 | 179 | 90 | 158 | 305 | 374 | 241 | 235 | 489 | 26 | 25 |
| 2750L-NARQ | 3 1/2" | 3" | 1 1/4" - 2" | 3/4" - 1 1/2" | 235 | 206 | 95 | 171 | 340 | 420 | 280 | 280 | 333 | 34 | 32 |
| 2750L4-NARQ | 3 1/2" | 3" | 1 1/4" - 2" | 3/4" - 1 1/2" | 235 | 206 | 95 | 171 | 340 | 420 | 280 | 280 | 495 | 34 | 32 |
| 2800L-NARQ | 4" | 4" | 1 1/2" - 2" | 1" - 2" | 260 | 260 | 146 | 189 | 415 | 494 | 308 | 283 | 356 | 34 | 32 |
| 950L7-NARQ | 5" | 2" - 5" | 2" - 3" | 1 1/4" - 3" | 330 | 297 | 160 | 221 | 470 | 586 | 457 | 457 | 457 | 54 | 50 |
*Dimensions are subject to change without any advanced notice.
Type:L-NAFRQ
Unit:mm
| Type | Size(K) | M | P | S | B | C | D | E | F | G | H | J | L | R | T | U | N | O | Support rod size | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reg. | Min. | MaX. | |||||||||||||||||||
| 2600L-NAFRQ | 2 1/2" | 2" | 1 1/4" | 1/2" - 1 1/4" | 133 | 184 | 76 | 133 | 74 | 160 | 270 | 378 | 68 | 40 | 91 | 35 | 210 | 210 | 241 | 20 | 19 |
| 2600L4-NAFRQ | 2 1/2" | 2" | 1 1/4" | 1/2" - 1 1/4" | 133 | 184 | 76 | 133 | 74 | 160 | 270 | 378 | 68 | 40 | 79 | 41 | 210 | 210 | 349 | 20 | 19 |
| 2700L-NAFRQ | 3" | 2 1/2" | 1 1/4" - 1 1/2" | 3/4" - 1 1/2" | 152 | 200 | 89 | 152 | 90 | 186 | 305 | 432 434 | 68 70 | 29 | 97 | 44 | 241 | 235 | 260 | 26 | 25 |
| 2700L4-NAFRQ | 3" | 2 1/2" | 1 1/4" - 1 1/2" | 3/4" - 1 1/2" | 152 | 200 | 89 | 152 | 90 | 186 | 305 | 432 434 | 68 70 | 29 | 97 | 44 | 241 | 235 | 375 | 26 | 25 |
| 2700L8-NAFRQ | 3" | 2 1/2" | 1 1/4" - 1 1/2" | 3/4" - 1 1/2" | 152 | 200 | 89 | 152 | 90 | 186 | 305 | 432 434 | 68 70 | 29 | 97 | 44 | 241 | 235 | 489 | 26 | 25 |
| 2750L-NAFRQ | 3 1/2" | 3" | 1 1/4" - 1 1/2" | 3/4" - 1 1/2" | 180 | 235 | 111 | 180 | 95 | 198 | 340 | 472 474 | 68 70 | 36 | 125 | 46 | 280 | 280 | 333 | 34 | 32 |
| 2750L7-NAFRQ | 3 1/2" | 3" | 1 1/4" - 1 1/2" | 3/4" - 1 1/2" | 180 | 235 | 111 | 180 | 95 | 198 | 340 | 472 474 | 68 70 | 36 | 125 | 46 | 280 | 280 | 495 | 34 | 32 |
| 2800L-NAFRQ | 4" | 4" | 1 1/2" - 2" | 1" - 2" | 190 | 260 | 114 | 190 | 146 | 230 | 415 | 560 568 | 70 78 | 57 | 148 | 44 | 308 | 283 | 356 | 34 | 32 |
*Dimensions are subject to change without any advanced notice.