a company called tek-air that can supply the air valves . they said special order
i added notes for operation of existing valves to be verified and system during renovation
you are right about it being an old system. they are planning to reuse as much as possible
can Vav box be used instead...
Hi
I am a job to relocate ductwork for an office alteration in New Jersey. The ductwork is supplied from a large rtu. There no plans I field measured the existing duct layout and saw two duct runs. The branches from primary duct went through a pneumatic air valve to reduce the pressure. The...
How is medium pressure air reduced to low pressure
I saw a installation where they used a pneumatic air valve to reduce pressure to low pressure . The work was done 40 years ago .I was wondering if this is still the way to go on an alteration
