KLAW Flip-Flap Valve System - KLAW LNG

Flip-Flap Valve closing mechanism

100% shut-off of downstream and upstream of LNG in the transfer system is delivered by the KLAW Flip-Flap Valve system.

The key advantages of this system are its simplicity and its ability to deliver successful operation within a wide spectrum of circumstances beyond that of other closure systems. The KLAW Flip-Flap Valve system also delivers low pressure drop characteristics. This maintains efficiency and improved transfer times.

Conceptual demonstration of the Flip-Flap Valve Mechanism using Sequential Closure illustrations

KLAW ERC collar separation

  1. Internal Flaps are positioned in line with media flow. These keep each other open, offering minimum headloss.
  2. As the Emergency Release Coupling begins to separate, the discs flip through a controlled arc.
  3. The discs snap onto their seats – providing 100% shut-off.
  4. With the Valves now closed, the separation sequence continues and with the Collar now detached, the coupling separates.