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Cantilever StationarySyphons

Reliable Condensate Removal

Applications With more than 14,000 cantilever stationary syphons sold,Kadant Johnson is the preferred supplier and global leader instationary syphon technology. Our cantilever stationary syphonsare designed for use on paper machine dryer sections running up to 2,000 mpm (6,500 fpm) producing paperboard, writingpapers, newsprint, and other grades.
Features Designed for difficult applications The Kadant Johnson PTX rotary joint is designed specifically forthe cantilever stationary syphon. This joint rigidly supports thehorizontal tube that passes through the dryer journal. The tube is held in this joint with a taper lock and a specially designed hollow bolt. The syphon is positioned in the dryerand locked to the horizontal support tube with a single-piecevertical support bracket. The horizontal support tube (A) providesthe rigidity needed to resist the impact ofcondensate on the syphon shoe and the vibrations that can result.This rigidity is further enhanced by the vertical support (B). This one-piece support strengthens and stiffens thevertical syphon pipe, to minimize itsdeflection and vibration. Decreased vibration allows the syphon shoeclearance to be reliably maintained,resulting in increased drying capacity and consistency of operation.

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Stainless steel clamp pad with Teflon shoe

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Narrow profile with low drag

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Large syphon tip opening

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Double-cut, double-bolt clamp secures syphon shoe in place
Benefits

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Smooth condensate flow into syphon pipe

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Optimal heat transfer with adjustable syphon clearance

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Syphon adjustment for precise placement of pick-up shoe

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Long performance life with corrosion-resistance materials Overcoming traditional high-speed syphon limitations Rotary syphons require high differential steam pressures toevacuate condensate from high-speed paper machine dryers.Stationary syphons are preferred for these applications, because the differential pressure requirement remains quite low. This reduces blow through steam and improves dryeroperating efficiency.High speeds, however, can create mechanical problems forstationary syphons. All cantilever stationary syphons aremounted and supported from outside the dryer cylinder. Because the stationarysyphon remains fixed inplace, it must be able to withstand the impact ofthe condensate that isrotating with the dryer. Stationary syphons with low stiffness will deflect, vibrate, and eventually fail.The Kadant Johnson cantilever stationary syphon is designed to provide both improved operating efficiency and mechanical reliability.The cantilever stationary syphon features axial adjustment ofthe vertical support to allow for fine-tuning the location of the syphon shoe to ensure the correct location inside the dryer. The horizontal support tube can easily slide into thejournal bore and be locked into position. A robust hollow bolt secures the support tube in place, eliminating the potential for small fastener failures.
A B C