... float rose, spring stretch effect, turn off the vent. This gas is continuously being collection, emissions, emission collection, then again, the ... piping and equipment system of automatic exhaust process.2,constitution Brass valve,valve cap,the float is made of high temperature composite ... pipe, simply adding 1/2 '' to 3/4 '' complement core . (3),If not exhaust,tighten the next body,to remove ...