Flowserve AK 45 - Manual (Page 6)

6
Explanatory Notes
System description
Scope of supply
AK 45
 Condensate drain valve AK 45
 Installation manual
The AK 45 automatically discharges condensed water from steam systems during start-up, until the
pressure in the system has reached the adjusted valve closing pressure.
At shut-down or when the pressure falls below the closing pressure the valve opens and accumulated
condensate is automatically discharged.
When there is no pressure in the system the drain valve is held in the open position by the integrated
spring. As soon as the service pressure has reached the closing pressure to which the AK 45 has been
adjusted, the valve closes (by the differential pressure acting on the valve cone against the force of the
spring). When the pressure drops below the closing pressure, the AK 45 opens by spring force.
A hand purging knob is provided, so that the AK 45 can be briefly opened by hand with the system
under pressure to clear any deposits from the valve seat area.
The AK 45 is adjusted at our works to close at a differential pressure of 0.8 barg ( psig).
The AK 45 is provided with a built-in strainer.
Function