ARMAGAS s.r.o. Trinec
Prumyslova 1021
739 65 TRINEC - Stare Mesto
Prumyslova 1021
739 65 TRINEC - Stare Mesto
BY - PASS
The by-pass is an interconnection of the inlet and outlet piping at the diaphragm valves to avoid impacts. At the opening of the diaphragm valve, if the piping behind the valve is empty, impact will occur. The impact is more intense in direct dependence with the operational overpressure. The electromagnetic two-way valve is built-in in the by-pass, closed without voltage, and on the outlet piping a manostat is installed. When the valve is turned off, the gas behind the valve can be exhausted and the piping behind it is relieved of the gas overpressure. At re-start, the control manostat will send the command for opening the two-way valve in the by-pass, the piping will be filled behind the valve without impact, the manostat at sufficient overpressure will turn off the two-way valve in the by-pass and will turn on the three-way valve, the BAP valve will open without impact. Another alternative has a manual ball valve installed instead the electromagnetic two-way valve.
