Gas-saving valve for SICCO glove boxes, w connect. piece, incl. installation kit

For direct installation on the cable lead-in of the SICCO glove box. With connection piece for ventilation tube with inner Ø 45 mm. The passage to the venting hose is sealed almost gastight by means of a ball and only opens automatically to equalise pressure in the event of overpressure or underpressure in the glove box. This minimises the flow of ambient air via the ventilation tube and reduces gas consumption during the flushing process and when working in the glove box. Additional space required due to overhang: approx. 130 mm. Includes hexagon wrench and four fixing screws.