The GVA gas solenoid valves supplied by UK Metering are Normally Closed meaning that power is applied to the valve to keep the valve open. When power is removed (during a power cut, for example) the solenoid will close the valve preventing the supply of gas. The GVA range are generally supplied as 230v but 24v options can be sourced at specific request.

UK Metering can also provide Closed Position Indicator (CPI) switches for the GVA range. CPI auxillary switches allow remote monitoring of gas solenoid valves and are often used as part of a controls package.