Norvale check valves

Most pipeline systems require some form of check valve device to maintain flow in one direction to prevent either contamination of liquids already in the system or damage to the pipework and its ancillary components.  

What are the check valve features that the piping engineer is looking for?

• Tight shut off under minimum back pressure.
• Quick response to no-flow or reverse flow conditions.
• Low resistance to forward flow.
• Lightweight construction.
• Ease of installation with unskilled operators .
• No maintenance.
• It is a stop silent valve.
• It stops the flow and is completely silent in its operation, preventing "water hammer".

The Norval Non-Return Check Valve has all these features plus one or two less obvious benefits.

• It is extremely simple.
• It operates in any direction, vertically up or down, or horizontal.
• High material specification - 316 stainless steel.
• Less noise due to slamming shut under reverse flow.
• Can be incorporated in a variety of body configurations or simply built into original equipment as a cone and diaphragm assembly