Hi,
I'm thinking of adding a full height partition wall to separate the bedroom from the living room in my studio unit. The unit is in a high rise building and I was wondering if the change will require modifications to the fire sprinkler system. Attached is a sketch showing the current...
Has anyone installed a portion of a dry sprinkler system underground? How did you provide auxiliary drains for the underground portion of the system?.
I am designing the plumbing, fire protection (performance only) and hvac systems for a new building. And my client has asked me to look into...
Hi
I am working on the design of a science lab building (NFPA 45) which includes several instructional laboratories and a dedicated liquid storage room. The labs will be designed for ordinary hazard II per NFPA 45 (Class C or D, Instructional laboratories) and the amount of...
Hi,
Are the recommended flowing pressures in Table 604.3 of the 2012 International Plumbing code still valid for low flow plumbing fixtures. Has anyone run into issues when designing using the values in the code?
I am designing the drainage systems for a large apartment complex which will have a manual wet standpipe system and a large classroom building which will have a combined manual wet standpipe system / automatic fire sprinkler system. The fire suppression systems wont be designed by my firm (They...
Hi,
I am specifying my first water booster pump, and would like to hear how you other engineers determine whether a booster pump is needed and the amount of pressure boost that is needed.
My calculations are as follows:
Water flow test
static pressure: 58psi
residual pressure...
Hi,
Is there a way of sizing the air compressor for a pre-action system without knowing the layout of the system. I work as a plumbing engineer designing residential buildings and usually the design of the fire protection system is delegated to the contractor. However, I would like to know...
Hi Members,
I am trying to calculate the hot water recirculation flow for several balancing valves. I am following the procedures outlined in the ASPE Plumbing Engineering Design Handbook Volume 2, Chapter 6. However, once you have more than one recirculation path the process becomes a little...
Hi everyone,
I am an entry level plumbing engineer looking for the opinion of a more experienced mechanical / plumbing engineer on the following:
Do kitchen faucets that meet ANSI A112.18.1M have an integral backflow preventer device or do they require an additional backflow preventer device...
Hi Everyone,
I recently graduated from college (Mechanical Engineering) and started working as a Plumbing engineer at a small company. I am currently the only plumbing engineer at my office and I would like to hear your suggestions about how to present the different plumbing systems in the...
Does anyone have experience designing storm drainage systems using scuppers only?
I am designing the storm water drain system for the roof of a two story building (I-2) and our client requested replacing the roof drains by scuppers. We are using the 2012 International Plumbing code and I am...
