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Khớp nối quay PTX™

Khớp nối quay PTX™

The PTX rotary joint and stationary syphon system incorporate the latest developments in seal design and drying technology for paper dryers. The lightweight design makes for easy installation; yet its heavy-duty construction handles high pressure, high speed, and angular misalignment. The PTX can also accommodate thermal expansion of the dryer journal – even when used on the front side of paper machines.

The patented PTX steam joint design uses a spring-loaded piston that applies balanced pressure on the seal ring to keep it securely seated against the wear plate. The wear plate is attached to the journal or a filler flange. The wear plate rotates while the piston remains stationary. The seal ring is free floating to accommodate angular and offset misalignment.

With its spring-loaded piston and reverse seal, the PTX seal technology is a far different design than conventional seal packages. These advanced design differences make the PTX a more reliable, easier-to-maintain joint – even under the most difficult operating conditions. The PTX is rated up to 400° F (205° C), 160 psig (11 bar), and 500 RPM (8,000 fpm).

Features

  • Balanced seal
  • Convex antimony seal ring
  • Large flow area
  • Rigid mounting
  • Accommodates thermal expansion
  • Lightweight design

Benefits

  • Long running life
  • Self-aligning seal
  • Low pressure drop
  • High speed reliability
  • Applied to “floating” journals
  • Easy installation

Type: 2000PT Specifications

Fluid Max. Pressure Max. Temperature Max. Speed
Water/Steam 1.0MPa 204°C 500rpm

 

Unit:mm
Type Size M A E G J N O
2300LAF 1″ 1″ 32 – 119 161 149 – 241 20
2550LAF 2″ 2″ 60 117 323 399 222 – 400 21 – 27
2700LAF 3″ 3″ 86 152 445 535 235 – 267 27 – 33
2750LAF 3 1/2″ 3 1/2″ 102 165 534 648 279 – 365 33 – 40
2800LAF 4″ 4″ 102 165 518 633 308 – 356 33 – 40
1075LAF 6 1/2″ 8″ 197 235 1,165 1,337 559 67
*Dimensions are subject to change without any advanced notice.

Type: 6000PT Specifications

Fluid Max. Pressure Max. Temperature Max. Speed
Water/Steam 1.0MPa 204°C 500rpm

 

Unit:mm
Type Size M A D E G H
6550AF 2″ 2″ 60 114 117 323 391
6700AF 3″ 3″ 86 117 152 470 565
6750AF 3 1/2″ 4″ 102 152 165 495 610
6800AF 4″ 4″ 102 152 165 516 647
*Dimensions are subject to change without any advanced notice.

Type: 9000PTX Specifications

Fluid Max. Pressure Max. Temperature Max. Speed
Water/Steam 1.1MPa 243°C 500rpm

 

Unit:mm
Type Size M P A B C D E F
9750 3 1/2″ 2 1/2″ – 3″ 1 1/4″ – 2″ 103 198 299 254 133 190
9800 4″ 3″ – 4″ 1 1/2″ – 2 1/2″ 133 230 353 284 146 216

 

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