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Question
what is the diffrence between mmwc and kg/cm2 for pressure 
measurment when we are using mmwc and when kg/cm2 and why?????
?? what is the reason
 Question Submitted By :: Keval
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 1
when we r measuring very low pressure :: mmWC
and measuring high pr. :: kg/cm2/bar/psi... ok
for example we r measuring like boiler furnaces
pressure(draft) i.e very low pr.(250mmWC) so we r measuring
in mmWC, and when we r calibrating the transmitters (flow
and level) that time also we r calling transmitters range
also mmWC ok

here note the point is 10,000 mmWC = 1 Kg/cm2 then
1mmwc=0.0001kg/cm2 ok
 
Is This Answer Correct ?    317 Yes 26 No
Mail2noor.hyd
[Chemfab Alkalis Limited]
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 2
10000 mmwc equals to 1 kg/cm2.
For low ranges pressure is mentioned in MMWC otherwise in
any other pressure units.
 
Is This Answer Correct ?    107 Yes 12 No
Vaibhav V T
 
 
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 3
Mostly both are units of pressure. when we measure the very
low pressure than it is expressed in mmwc else higher
pressures are measured in kg/cm2. low pressure can also be
used for but the error in values will be more.
Basically 10000 mmwc is 1 kg/cm2 a.
 
Is This Answer Correct ?    68 Yes 9 No
Dhirendra
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 4
First of all using kg/cm2 for pressure is absoltely
wrong.pressure is force per unit area and unit of force is
newton, so pressure unit is N/cm2 and not kg/cm2.MMwc is
used for low pressure measurement and N/cm2 is used for
high pressure measurement.
 
Is This Answer Correct ?    27 Yes 47 No
Vaibhav V T
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 5
N/m2 is SI Unit and Kg(f)/cm2 is MKS Unit.

1 Kg/cm2 is 1.033 bar or 1.033x10^5 N/m2
10000 mmwc= 1 kg/cm2
 
Is This Answer Correct ?    62 Yes 9 No
Dilip
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 6
Mostly both are units of pressure. when we measure the very
low pressure than it is expressed in mmwc else higher
pressures are measured in kg/cm2. low pressure can also be
used for but the error in values will be more.
Basically 10000 mmwc is 1 kg/cm2 a.
 
Is This Answer Correct ?    10 Yes 2 No
Tapan Das
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 7
Mostly both are units of pressure. when we measure the very
low pressure than it is expressed in mmwc else higher
pressures are measured in kg/cm2. low pressure can also be
used for but the error in values will be more.
Basically 10000 mmwc is 1 kg/cm2 a.In thermal power plant mmwc is most useful in boiler side.
 
Is This Answer Correct ?    13 Yes 2 No
Prashant Meena
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 8
both r units of pressure itself..but when the system is in
vacuum then the pressure measured in mmwc and the positive
pressure measured by kg/cm2.so for low pressure mmwc used
and for high pressure kg/cm2 is used..
 
Is This Answer Correct ?    7 Yes 3 No
Chirag Darji
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 9
both r units for pressure,.but,mmwc(millimeter water column)is
very low pressure means less than zero.here, 10000mmwc=1kg/cm2.we may consider the mmwc as vaccum.
 
Is This Answer Correct ?    8 Yes 0 No
M.vijay Kumar
 
  Re: what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason
Answer
# 10
We are using the mmWC for very low or lower than 0 and more than 0 we are using Kg/cm2. 
Is This Answer Correct ?    3 Yes 1 No
Sk Singh
 

 
 
 
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