- Not explosion-proof intermediate armature, with venting or breathing function for containers. For installation in pipe.
- The armature either serves as vacuum valve or as pressure valve, this depending on the fact which flange is connected to the tank side.
- Also used as nonreturn valve or overflow valve.
- In case of use in explosive atmospheres of gas/vapour-air mixtures ignition hazards need to be considered.
- Plastic material tends to electrostatic charging.
- The use should be completed respectively decided by a risk analysis considering countryspecific rules and regulations.