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i have 3200 CFM must go through sand trap louvers ? i need calculation and how to calculate it ?

sand Trap Louvers calculation ? i have 3200 CFM must go through sand trap louver ? i need how to calculate it

dears we have butterfly valve gear type and need to change the handle position by rotating the gear it self . is it possible ?

dear try to follow this Q = M * Cp * Delta T Where: Q = The amount of heat transferred to or from the fluid (BTU/hr) M = Mass flow rate of the fluid (lb/hr) Cp = Specific heat of the fluid (BTU/lb-°F) Delta T = The change in temperature of the fluid (°F) with this you will have the...

thanks all

thanks a lot all for your great help

thanks dears . we have automatic sprinkler system . according for the site consultant the hazard are ord haz Grp 1 . but we just want to be sure from that . all area inside factory around 2.8 . also its important to calculate the fire tank size ( for ord haz grp 1 tank must enough for 60 min...

sorry i was writing in hurry . ( be nearest ) and thanks all for replays and help . so i found that tank size are calculate based on the amount of water need for person /hr ( is there any tables for this values )

Dear In this factory area there is no feed of water from city. Just there we work on under ground tanks. We calculate that factory need 110 GPM from the number of lavatory, shower,sinks and its fixture units. So i calcaculate the water tank size for 8 hr ( 1 shaft). I found it 200 m3. but...

. also according to our calculation we need around 110 GPM for factory building . please advice how mush will be the tank dimension ? and tank capacity per day ?

dears what is the hazard classification for sweet factories according to NFPA

dear normally in villas or schools high not too mush . this rules are good for rooms height between 2.4 - 3.5 meter if u have more height put .5 TR more . you most welcome

dear i am also in ksa . and i am working in same field . when you finish calculation use this sample ruls 1 TR are enough for 12 SQMT for villas 1 TR are enough for 10 SQMT for schools as you have big occupancy for air side and duct design I TR need Around 400 CFM exanple if u have...

dears we have project and we install (P-Trap ) on each floor drain point . the supplier bring the floor drain it self with ( S trap ) . is there any Problem to keep the (P-trap) ? i.e we have (S-trap ) on the floor drain and the n we have (P-Trap ) on pipe Line

dears we have project and we installe (P-Trap ) on each floor drain point . the supplier bring the floor drain it self with ( S trap ) . is there any Problem to keep the (P-trap) ? i.e we have (S-trap ) on the floor drain and the n we have (P-Trap ) on pipe Line .

thanks - LCREP cdafd - yes we have water sprinkler system for other factory zones . the factory comes in 4 floors - in each floor we have electrical room . for lighting - machines --etc

water type fire sprinkler is rejected from owner . he want CO2 or FM 200 . so which is better according to NFPA

according to NFPA code which i can use for electrical rooms ? FM 200 or CO2