Wednesday, August 28, 2013

Dredge Yard tests and delivers Bow Coupling System


Dredge Yard delivered two bows coupling for the size of 600mm for European dredging company. Those bow couplings will be used on two existing dredgers for the quick coupling and dis-coupling.
 

They were designed, produced and tested for working pressure of 10 bars in Dredge Yard’s facilities in Dubai. These couplings are provided with a hydraulically operated locking system for quick as well as easy locking and releasing of the discharge lines offering the possibility to reduce time between phases of the dredging activity.

The bow couplings are equipped with duplex ball to prevent rust and achieve wear performance. To clamp the ball in the bow coupling casing two half-moon bars are provided around the gland enforced by one hydraulic cylinder. Inside the ball a wear resistant ball liner is provided to increase the life time of the coupling.

Moreover, two hydraulically operated locking pins are provided for securing the locking clamps during high pressure discharging, making them more reliable during operations. In addition, major parts which are affected during operations can be easily repaired or replaced.


With Dredge Yard’s improved locking system design, it’s more reliable, less time consuming and hence, cost effective.

They are available in a wide range of sizes from 400 mm to 1200 mm with working pressure between 10 to 30 bars.
 
Iulia Berchiu

Thursday, August 1, 2013

Water Ball Joint Presentation

Water Ball Joint Presentation


Dredge Yard has successfully delivered Water Ball Joint 700 to Baku, the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea.

These ball joints have been produced by using new innovative design developed by Dredge Yard’s team of engineers which makes it much more economical and suitable for transporting water.

Water ball joint 700 mm is suitable for 10 bar working pressure and has been tested up to 18 bars. They have a tilting angle 15 degrees to all directions. The grease grooves are provided in the case which makes the lubrication work much easier and effective than before.

A new design of rubber seal is provided in the case to make the water ball joint tight even at higher pressure than working pressure.

All the ball joints have been produced in Dredge Yards facilities by using latest production technologies and casting expertise.

To assure high quality and hence, better life, all the ball joints underwent through thorough tests and inspections during and after production.

 

They were delivered in 4 batches by trucks directly from Dredge Yard’s facilities to Baku in Azerbaijan, to ensure shortest delivery time.

 

Dredge Yard is currently producing heavy duty water ball joint for I.D. 1200 mm using the same design principle and new sealing design.