Material
● Body-Brass, polished and chromium plated.
● Reflector-Brass, with the body is one part．
Window
● Tempered glass．

Glass seal ring
● Type-A:Rubber NBR.
● Type-B:Rubber FKM.

Maximum continuous working temperature
● Type－Ａ：-４０°C-１８０°C.
● Type－Ｂ：-２０°C-１８０°C.

Working pressure
● The working pressure should be lower than 2.0Mpa．
● The Instantaneous pressure should be lower than 3.0Mpa．