Interface Valve Monitoring
This is an essential operational tool as it pin points valves which have failed to close properly and are therefore causing a loss of pressure within the vacuum system. A loss of pressure is generally caused by a foreign object preventing the plunger inside an interface valve from properly sealing the sewer pipe and it is at this stage that the monitoring system becomes invaluable in locating the troublesome valve.
The method of operation is simple. A switch attached to the body of each interface valve detects whether the valve is open or closed and relays this information to the vacuum station via a signal cable installed alongside the vacuum sewer pipes.
Within the vacuum station a Light Emitting Diode (LED) display then indicates the open and closed status of each valve, with an LED being illuminated when a valve is open.
Examination of the display panel will indicate which interface valve has failed to close as each valve has a unique identity code. A visit to the collection chamber housing the valve will then allow the problem to be rectified.
When pressure losses are occurring on the vacuum system, the speed at which problem valves can be identified is greatly increased using this system. This in turn significantly reduces the time required on site by maintenance crews and allows the vacuum system to be quickly returned to normal operation.
Iseki Utility Services, 10125 Channel Road, Lakeside, CA . Tel: 44-01-789-292436; Fax: 44-01789-262518.