Gas-saving valve

Gas-saving valve for direct assembly to the cable lead-in of a SICCO glove box.
With hose connector for aeration tubing with inner Ø 45 mm. The pass to the aeration tubing is closed nearly gas-tightly through a plastic ball and opens automatically for pressure compensation in case of overpressure or vacuum inside the glove box. This way, no ambient air can enter the glove box through the aeration tubing and thus, gas consumption is reduced during working and scavenging process inside the glove box. Take care of the correct mounting position, additional required space: approx. 130 mm. Including one hexagonal wrench and four fixing screws.