Description:

Schwing Rock Valve/ van Rock Schwing

The Schwing Rock valve has proven itself over many years and in countless applications to be the epitome of economy in the world of concrete valves. The rock valve is patented by Schwing and it powers majority of pumps manufactured by Schwing.

The valve system has several advantages which has made it as a favourite of contractors worldwide. The Rock is robust and easy to service. It is subject to natural wear when pumping concrete and can then be rebuilt with hard-face welding which makes it multi-economical.

All concrete valves reduce from inlet to outlet but the rock body increases in size. But the outlet is engineered to be smaller than the inlet, so it is theoretically a reduction. Concrete, being a fluid takes the path of least resistance. So the combination of a larger body and a smaller outlet causes concrete to flow along the path of least resistance rubbing against concrete and not against metal which causes lower wear per cubic metre.

Periodic Hard facing makes the valve last forever
The main advantage of the rock valve is its ability to be hard faced completely internally. The design of the rock valve enables this while the design of other valves prevents this. This means that the Rock can be completely rebuilt periodically resulting in the valve becoming good as new again.

This valve system is completely free of internal restrictions. The lack of internal resistance also contributes to a smoother flow of concrete and this free flow utilises lesser fuel as well for concrete pumping.

More Powerand Balance:

The Rock valve is perfectly balanced along its neutral axis. This means that lesser vibrations are transmitted to the pumping.

This is especially visible in the case of boom pumps where other’s pumps are seen literally Swinging while Schwing pumps are more stable thanks to the Rock and the outrigger system.

The large body design also helps develop more force to the concrete flow which results in concrete being pumped higher or further utilising lesser fuel. Thus, we can see that the rock valve is a far superior system and this fact has been proven on countless sites worldwide.

All SSI pumps made in India are now available with the next generation RL Rock Valve that has been made for India after years of study in the behaviour of Indian concrete mixes.