Jet Grouting Flushing Heads
Single and double tube jet grouting flushing heads are designed for long and reliable service under extremely difficult operating conditions.
The component layout of the flushing head system allows for optimum grout flow with minimum pressure drops. Tight tolerance control on machined surfaces, specially designed seals and the utilization of high quality bearings provide long life without costly downtime.
Jet grouting utilizes high pressure fluids and grouts which can cause injury if not properly controlled. As a safety feature in all flushing heads relief valves have been implemented between critical seals to provide early indication if maintenance is required.
Valve fastener
Valve fasteners (also called monitors) are designed to optimize the high pressure grout flows and minimize pressure losses. By ensuring that the maximum possible pressure of the grout stream is allowed to pass through the injection nozzles you can optimize the size of your grout column.
Additionally by reducing the damaging effects of turbulent grout flows inside the monitor the internal wear is reduced allowing for a long operating life. For protection of the external surface of the valve fastener, it is nitrated and hard surface welding is applied to the outer diameter. This provides additional resistance to wear from abrasive ground conditions and grout materials.
Standard configuration of the valve fastener has two injection nozzles positioned 180° from each other. Upon request, we can customize the nozzle orientations to suit specific drilling needs.
