mrctchlr
Mechanical
- Jan 13, 2004
- 22
My question:
I need to registrate opening- and closing times according to EN161. Can i do it without appling a working pressure to the valve? In other words, can i test it 'dry'.
many thank in forward!
I need to registrate opening- and closing times according to EN161. Can i do it without appling a working pressure to the valve? In other words, can i test it 'dry'.
many thank in forward!