Khớp nối quay RX™
The RX rotary joint uses a balanced seal with special ball bearing or optional tapered roller bearings to support the rotor. This rotary joint from Kadant Johnson incorporates the latest technology in mechanical seal design for water and hot oil service. The high thrust load capability and carbon-to-silicon (or Tungsten) carbide seal package makes the RX run longer and with less maintenance requirements that other ball bearing designs. All O-rings are fully captured in glands and seal-loading springs do not contact the process fluid. The RX features a barrier in the seal chamber to extend bearing life and a nipple and assembly plate made of stainless steel. Available in single- and dual-flow configurations and sizes from 3/8” to 6”, the RX rotary joint is capable of operating up to 500° F (260° C), 150 psig (10 bar), and 750 RPM.
Features
- Springs located outside the flow area
- Stainless steel rotor
- Two-piece housing, on-machine seal replacement
- O-rings fully captured in glands
- Balanced seal assembly
- Full flow area
- Matched seal faces
- Bearing isolation system available
- Tungsten carbide counterseat
Benefits
- Improved reliability, increased flow area
- Corrosion resistant
- Reduced down-time and cost of maintenance
- Robust design, no risk of o-ring slipping
- Extended operating life
- Low pressure drop
- Materials selected for specific service
- Increased bearing protection
- Added toughness and shock resistance
Specifications
| Max. Pressure | Max. Temperature | Max. Speed | Fluid |
|---|---|---|---|
| 1.3MPa | 250°C | 1,000rpm | Steam/Water/Hot Oil |
Single:Threaded
Dual:Threaded
Threaded:Single·Dual Flow
Unit:mm
| Type | Size | M | P | S | A | C | D | F | G | J1 | J2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4200RX | 2″ | 1 1/4″, 2″ | 1″, 1 1/4″ | 1 1/4″ | 49 | 143 | 229 | 56 | 309 | 280 | 336 |
| 4250RX | 2 1/2″ | 2 1/2″ | 1 1/4″, 1 1/2″, 2″ | 1 1/2″ | 61 | 174 | 271 | 72 | 371 | 334 | 402 |
| 4300RX | 3″ | 2″, 3″ | 1 1/4″ – 2″ | 1 1/2″, 2″ | 74 | 200 | 327 | 92 | 453 | 397 | 491 |
*Dimensions are subject to change without any advanced notice.
Single:Flanged
Dual:Flanged
Flanged:Single·Dual Flow
Unit:mm
| Type | Size(K) | タイプ | M | P | S | A | B | C | D | E | F |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4200RX | 2″ | Single | 2″ | – | – | 353 | 272 | – | 211 | 162 | 94 |
| Dual | 1″ | 1″ | 1 1/4″ | 401 | 344 | 222 | 211 | 162 | 102 | ||
| 4250RX | 2 1/2″ | Single | 2 1/2″ | – | – | 397 | 311 | – | 211 | 162 | 104 |
| Dual | 1 1/2″ | 1 1/2″ | 1 1/2″ | 487 | 419 | 262 | 211 | 162 | 117 | ||
| 4300RX | 3″ | Single | 3″ | – | – | 449 | 349 | – | 102 | 192 | 124 |
| Dual | 2″ | 2″ | 2″ | 565 | 474 | 304 | 102 | 192 | 130 |
*For 2″ and 2 1/2″ sizes, the ’D’ dimension is the ID of the counterbore. Counterbore depth is 0.25″(6.4mm). For 3″ size, the ’D’ dimension is the OD of the pilot. Pilot depth 0.30″(7.6mm). Drawings show the integral flanged nipple with pilot.
*Dimensions are subject to change without any advanced notice.
Specifications
| Max. Pressure | Max. Temperature | Max. Speed | Fluid |
|---|---|---|---|
| 1MPa | 150°C | 750rpm | Water |
Single:Threaded
Dual:Threaded
Threaded:Single·Dual Flow
Unit:mm
| Type | Size(K) | Type | M | P | S | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4400RX | 4″ | Single | 4″ | – | – | 484 | 415 | – | 120 | 229 | 168 | – |
| Dual | 2 1/2″ | 2 1/2″ | 2 1/2″ | 530 | 484 | 334 | 120 | 229 | 76 | 111 |
*Counterbore depth=7.6mm
*Dimensions are subject to change without any advanced notice.
Single:Flanged
Dual:Flanged
Flanged:Single·Dual Flow
Unit:mm
| Type | Size(K) | Type | M | P | S | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4400RX | 4″ | Single | 4″ | – | – | 530 | 415 | – | 120 | 229 | 165 | – |
| Dual | 2 1/2″ | 2 1/2″ | 2 1/2″ | 677 | 582 | 343 | 120 | 229 | 133 | 181 | ||
| 4500RX | 5″ | Single | 5″ | – | – | 583 | 485 | – | 160 | 225 | 194 | – |
| Dual | 3″ | 3″ | 3″ | 756 | 661 | 428 | 160 | 225 | 140 | 212 |
*Counterbore depth=7.6mm
*Dimensions are subject to change without any advanced notice.
Specifications
| Max. Pressure | Max. Temperature | Max. Speed | Fluid |
|---|---|---|---|
| 1MPa | 250°C | 750rpm | Water/Hot Oil |
Single:Threaded
Dual:Threaded
Threaded:Single·Dual Flow
Unit:mm
| Type | Size(K) | Type | M | P | S | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4400RX | 4″ | Single | 4″ | – | – | 538 | 469 | – | 120 | 229 | 168 | – |
| Dual | 2 1/2″ | 2 1/2″ | 2 1/2″ | 582 | 536 | 386 | 120 | 229 | 76 | 111 |
*Counterbore depth=7.6mm
*Dimensions are subject to change without any advanced notice.
Single:Flanged
Dual:Flanged
Flanged:Single·Dual Flow
Unit:mm
| Type | Size(K) | Type | M | P | S | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4400RX | 4″ | Single | 4″ | – | – | 584 | 469 | – | 120 | 229 | 165 | – |
| Dual | 2 1/2″ | 2 1/2″ | 2 1/2″ | 730 | 636 | 397 | 120 | 229 | 133 | 181 | ||
| 4500RX | 5″ | Single | 5″ | – | – | 617 | 486 | – | 160 | 225 | 194 | – |
| Dual | 3″ | 3″ | 3″ | 757 | 662 | 428 | 160 | 225 | 140 | 212 | ||
| 4600RX | 6″ | Single | 6″ | – | – | 657 | 517 | – | 176 | 248 | 227 | – |
| Dual | 4″ | 4″ | 4″ | 887 | 773 | 498 | 176 | 248 | 178 | 229 |
*Counterbore depth for 4″=7.6mm
*Counterbore depth for 5″=14.2mm
*Counterbore depth for 5″=14.2mm
*Dimensions are subject to change without any advanced notice.
RX Rotary Joint (Size:3/8″ – 1 1/2″)
Standard Specifications
| Max. Pressure | Max. Temperature |
|---|---|
| 1.3MPa | 105°C |
| Max. Speed | Fluid |
| 3,500rpm | Water/Air |
*Consult us for RX-1, RX-2, and RX-3 unions for applications up to 450°F (232°C).
RXA：Single(Threaded)
RXB2：Dual(Threaded)
Threaded:Single·Dual Flow
Unit:mm
| Type | Size(K) | A | C | D | F | G | H | J1 | J2 | M | P | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4038RXA 4038RXB2 |
3/8″ NPT | 10 | 64 | 100 | 10 | 138 | 117 | 119 | 153 | 3/8″ | 1/4″ | 1/4″ |
| 5/8″ – 18 UNF | 10 | 64 | 100 | 16 | 138 | 117 | 119 | 153 | 3/8″ | 1/4″ | 1/4″ | |
| 3/8″ BSP | 10 | 64 | 100 | 16 | 138 | 123 | 119 | 153 | 3/8″ | 1/4″ | M6×1″ | |
| 4050RXA 4050RXB2 |
1/2″ NPT | 13 | 64 | 102 | 13 | 138 | 117 | 122 | 153 | 1/2″ | 3/8″ | 1/8″ |
| 3/4″ – 16 UNF | 13 | 64 | 102 | 19 | 138 | 117 | 122 | 153 | 1/2″ | 3/8″ | 1/8″ | |
| 1/2″ BSP | 13 | 64 | 102 | 19 | 138 | 123 | 122 | 153 | 1/2″ | 3/8″ | 1/8″ | |
| 4075RXA 4075RXB2 |
3/4″ NPT | 17 | 73 | 113 | 14 | 156 | 133 | 138 | 173 | 3/4″ | 1/2″ | 1/4″ |
| 1″ – 14 UNF | 17 | 73 | 113 | 19 | 156 | 133 | 138 | 173 | 3/4″ | 1/2″ | 1/4″ | |
| 3/4″ BSP | 17 | 73 | 113 | 19 | 156 | 134 | 138 | 173 | 3/4″ | 1/2″ | 1/4″ | |
| 4100RXA 4100RXB2 |
1″ NPT | 25 | 91 | 138 | 17 | 193 | 164 | 166 | 213 | 1″ | 1/2″ | 3/8″ |
| 1 1/2″ – 12 UNF | 25 | 91 | 138 | 28 | 193 | 171 | 166 | 213 | 1″ | 1/2″ | 3/8″ | |
| 1″ BSP | 25 | 91 | 138 | 28 | 193 | 171 | 166 | 213 | 1″ | 1/2″ | 3/8″ | |
| 4125RXA 4125RXB2 |
1 1/4″ NPT | 32 | 96 | 155 | 17 | 222 | 200 | 189 | 247 | 1 1/4″ | 1″ | 1/2″ |
| 1 3/4″ – 12 UNF | 32 | 96 | 155 | 30 | 222 | 200 | 189 | 247 | 1 1/4″ | 1″ | 1/2″ | |
| 1 1/4″ BSP | 32 | 96 | 155 | 30 | 222 | 200 | 189 | 247 | 1 1/4″ | 1″ | 1/2″ | |
| 4150RXA 4150RB2 |
1 1/2″ NPT | 38 | 116 | 174 | 17 | 243 | 206 | 212 | 268 | 1 1/2″ | 3/4″ | 3/4″ |
| 2″ – 12 UNF | 38 | 116 | 182 | 28 | 250 | 214 | 220 | 276 | 1 1/2″ | 3/4″ | 3/4″ | |
| 1 1/2″ BSP | 38 | 116 | 182 | 28 | 250 | 214 | 220 | 276 | 1 1/2″ | 3/4″ | 3/4″ |
*Dimensions are subject to change without any advanced notice.
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