BOLT UPGRADES & LEAK SEALING

Leak Sealing

 

Walmsleys specialist team of dryer service engineers can perform localised or full face joint sealing on your dryers to repair existing steam leaks. Immediate repair of leaks prevents steam cutting which left unchecked with cause further damage to the dryer and complicate future sealing. Walmsleys engineers travel worldwide sealing Yankee dryers and MG cylinders.

Please contact us to discuss any dryer leak issues.

Walmsleys Yankee Dryer Leak Sealing and Bolt Upgrade
Bolt Upgrades

 

Some Yankee dryers and MG cylinders suffer from corrosion in the head to shell joint. Unchecked, this corrosion can jack open the joint and cause catastrophic head failure. The phenomenon was first identified in 1985, and has caused approximately 20 Yankees to be taken out of service.

Walmsleys can inspect your Yankee or MG dryer for this corrosion and if necessary, we can perform a head cut-back and bolt upgrade, preventing future corrosion, leakage and prolonging dryer service life.

We have successfully upgraded over 50 dryers. The upgrade procedure has been completely successful, removing all corrosion and preventing further ingress.

The bolt upgrade process involves:

  • FEA analysis of the joint to determine head machining dimensions

  • Machine the heads back, removing corrosion and moving the outer head diameter into the bolt clamping zone

  • Remove all head to shell bolts and bore out the existing bolt holes

  • Install new larger bolts and re-seal the joints

  • Grind shell

Please contact us to discuss any Yankee or MG problems.

Yankee Dryer Suffering From Head To Shell Joint Corrosion And Leaks
Walmsleys Yankee Dryer Bolt Upgrade FEA
Walmsleys Yankee Dryer Bolt Upgrade
Walmsleys Yankee Dryer Bolt Upgrade Complete
Recent Leak Seal and Bolt Upgrades

 

  • Bolt Upgrade for a 12 ft diameter Yankee Dryer – USA

  • Leak Seal Journal on two 15 ft diameter Yankee Dryers – USA

  • Leak Seal head to shell on two 18 ft diameter Yankee Dryer – USA

  • Bolt Upgrade for two 16 ft diameter Yankee Dryers – USA

  • Leak Seal head to shell on 16.5 ft diameter Yankee Dryer – USA

  • Bolt Upgrade for two 18 ft diameter Yankee Dryers – USA

  • Leak Seal spigot ports on a 12 ft diameter Yankee Dryer – USA

  • Leak Seal head to shell on a 12 ft diameter Yankee Dryer  - USA

  • Leak Seal head to shell on three 15 ft diameter Yankee Dryers – USA

  • Bolt Upgrade for a 16 ft diameter Yankee Dryer – Mexico

  • Leak Seal Journal on a 12 ft diameter Yankee Dryer – Mexico

  • Leak Seal head to shell on a 16.5 ft diameter Yankee Dryer – Australia

  • Leak Seal head to shell on a 15 ft diameter Yankee Dryer – Mexico

  • Leak Seal spigot ports on a 16 ft diameter Yankee Dryer – UK

  • Bolt Upgrade for a 15 ft diameter Yankee Dryer – Mexico

  • Leak Seal spigot on an 18 ft diameter MG Dryer – UK

  • Leak Seal Journal on a 20 ft diameter MG Dryer – UK

  • Bolt Upgrade for a 16.5 ft diameter Yankee Dryer – Mexico

  • Leak Seal head to shell on a 14 ft diameter Yankee Dryer – UK

  • Leak Seal balance weights on an 18 ft Diameter Yankee Dryer – Austria

  • Leak Seal head to shell on a 4.2m diameter Yankee Dryer – Turkey

  • Bolt Upgrade for an 18 ft diameter Yankee Dryer – France

  • Leak Seal head to shell on a 2.5m diameter Yankee Dryer – Romania

  • Leak Seal head to shell on a 3.6m diameter Yankee Dryer – Israel