Deublin steam & hot oil unions
Heat Rolls with Steam or Hot Oil
Steam and hot oil heat drying cans, corrugator rolls and calenders. A Deublin steam union brings the heat in – and with a siphon, takes the condensate out – through one union on the end of the roll.
- 232 °Cmax. temperature
- 17.2 barmax. steam pressure
- DN 15–80sizes, ½" to 3"
- 239 partsunions and service kits
The range
Steam & Hot Oil Unions
54000 Series – Duoflow, Fixed Siphon
Metric-catalogue steam, water and hot oil unions with a fixed siphon, DN 15–80.
- 36 parts
- DN 15–80
- up to 17.2 bar
- up to 232 °C
- up to 400 rpm
54100 Series – Monoflow
Steam, water or hot oil in one direction.
- 16 parts
- DN 15–40
- up to 17.2 bar
- up to 232 °C
- up to 400 rpm
54205 Series – Rotating Siphon
The siphon turns with the roll.
- 7 parts
- DN 20–80
- up to 15.5 bar
- up to 232 °C
- up to 400 rpm
Type C & CF Bronze (Inch)
Bronze trim for water and low-pressure steam, ½" to 3".
- 22 parts
- DN 15–80
- up to 20.6 bar
- up to 178 °C
Type C & CF Ferrous (Inch)
For higher-pressure steam, ½" to 3".
- 20 parts
- DN 15–80
- up to 17.2 bar
- up to 208 °C
Type CO & CFO Hot Oil (Inch)
Duoflow unions for hot oil to 230 °C.
- 19 parts
- DN 15–80
- up to 6.8 bar
- up to 230 °C
Type CR & CRF Rotating Siphon (Inch)
Bronze, ferrous and hot oil versions.
- 69 parts
- DN 15–80
- up to 20.6 bar
- up to 230 °C
Type CS & CSF Monoflow (Inch)
One-way unions in bronze, ferrous and hot oil versions.
- 42 parts
- DN 15–80
- up to 20.6 bar
- up to 230 °C
Service Kits
Seal kits for the inch C and CS unions.
- 8 parts
Paper Machine Steam Joints
FSU and H Series steam joints, SL stationary siphons and turbulence bars for dryer sections.
- Engineered to order
Corrugator Steam Joints
CMS50 and HPS A Series joints and siphons for high-pressure steam on corrugators.
- Engineered to order
How it works
How a Steam Union Works
- Steam goes in. Steam flows through the union into the turning roll.
- The roll heats up. The steam gives up its heat to the roll shell and turns to water (condensate).
- The siphon lifts it out. A pipe inside the roll – the siphon – picks up the condensate.
- Out through the same union. In a duoflow union the condensate leaves through the union, so the roll stays dry inside and heats evenly.
Why Deublin steam unions
Built for Heat, Made to Be Rebuilt
No Grease Needed
Carbon seals and bearings run without lubrication.
See the Wear
An external wear indicator shows when the seal needs replacing, so you can plan it.
Fixed or Turning Siphon
Choose a fixed siphon or one that turns with the roll.
Rebuild, Don’t Replace
Service kits put a worn union back to work.
How to choose
Four Questions to Pick a Steam Union
Monoflow or Duoflow?
Monoflow sends steam one way. Duoflow brings the condensate back out through the same union, using a siphon.
Fixed or Turning Siphon?
A fixed siphon stays still while the roll turns around it. A rotating siphon turns with the roll. Ask us which suits your roll.
Steam, Water or Hot Oil?
Bronze trim for water and low-pressure steam, ferrous for higher-pressure steam, and hot oil versions to 230 °C.
How Does It Fit?
Threaded, flange (CF) or quick-release (QR) connection; metric (DN) or inch sizes.
How it works
How Siphons Work
Steam heats a roll and turns to water – condensate. If it isn’t taken out, it pools and cools the roll. A siphon pipe inside the roll lifts the condensate out through the union.
A Fixed Siphon
In a duoflow union, steam flows in around the outside and condensate comes back through the siphon pipe in the middle.
On a Paper Machine
The FSU steam joint and a stationary siphon work as one unit. The siphon stays still while the dryer turns, and its pick-up shoe skims condensate off the shell.
Which Siphon for Which Speed
Faster machines need different siphons. The chart shows which suits each machine speed – ask us to confirm for your dryers.
Turbulence Bars
At high speed, condensate spins round with the shell as a layer and insulates it. Bars inside the dryer stir it up, so heat transfer – and drying – stay even.
Maximum pressure, temperature and speed are the series limits and can’t all be reached at once. Check the catalogue page on each union, or call Norman G Clark before ordering.
Literature & related
More Information
- General Industry catalogue – hot media (p. 34)
54000, 54100 and 54205 Series - BC162 catalogue
Inch C, CS, CR and CO unions, and service kits - Paper industry brochure
Steam joints and siphons for dryer sections - Corrugating brochure
Steam joints and siphons for corrugators - HPS range for corrugating
High-pressure steam joints
Not Sure Which Union You Need?
Tell us what the machine has to do – the load, the speed, how often it runs and the space you have – and we’ll help you choose the right Deublin product.