DEVICE TO RELIEF EXCESSIVE AIR PRESSURE IN SEWAGE SYSTEM

摘要

FIELD: means to relief short air pressure pulses in drain or sewage systems. ^ SUBSTANCE: device comprises body to be connected to sewage system and elastic reservoir secured to the body. The elastic body expands during short air pressure increase in sewage system and comprises inlet and outlet pipes connected with each other by intermediate members. The intermediate members are located in central body part. Elastic reservoir and at least one body part are enclosed with outer shell. ^ EFFECT: provision of excessive air pressure reduction without discharge of foul hydrogen sulfide containing air into atmosphere. ^ 10 cl, 4 dwg