Page 27 of 63 Pages
8.4 Checking the Safety Valve
(Located in the water reservoir.)
In order to prevent the safety valve from blockage, every two months,
under ordinary usage, it is necessary to allow the steam pressure to
escape through it.
Checking the safety valve shall be performed during any cycle, when
the pressure in the chamber is approx. 200 kPa (29 psi).
1. Remove the water reservoir cover.
2. Pull the ring of the safety valve using a tool (screwdriver, hook
etc.) and open the safety valve for 2 seconds. Be careful not to
burn your hands.
3. Verify that the valve releases steam and closes immediately.
4. If the safety valve is stuck in the ‘open” position, stop the
operation of the autoclave and let the pressure decrease to zero
(atmospheric pressure).
5. After the pressure in the chamber decrease to zero, pull the valve
ring and release the valve.
6. Repeat operations 1 to 3.
7. If the valve is stuck again in open position, call for service.
To Next Page
Loading...
