Gas Pipe Sizing Calculator   get-attachment
pipe type          
              gas type density              
    insert your information in the yellow boxes                      
                                 
    KW net / Gross / M3/Hr     Number   Pipe Size
mm  
    kWgross kW 45 Form Bends                 
    kWnett kW 90 Form Bends    Gas Rate m3/hr  
    m3/hr m3/hr 90 elbows                 
    kWgross kW tee flow entering branch    Length m  
    kWnet kW tee flow exiting branch                 
    M3/hr m3/hr Actual Pipe Length  m Pressure Drop mb  
                                 
  PRESSURE LOSS FROM THE METER TO THE APPLIANCES MUST BE CALCULATED TO CONFIRM IF IT IS WITHIN THE ALLOWABLE PRESSURE DROPS 1MB FOR NATURAL GAS / 2MB FOR L.P.G.  
 
  STEP1. Appliances Maximum Heat input kw net Maximum Gas Rate   STEP 4. Add the pipework section pressure drops from the meter to each applaince TOTAL PRESSURE DROP MB SATISFACTORY?  
                       
                       
                       
                       
 
  STEP 2. SKETCH THE PIPE WORK LAYOUT INDICATING PIPE LENGTHS AND LABELS I.E. A-B, B-C,        
 
  STEP 3. PIPEWORK SECTION MAXIMUM HEAT INPUT NET MAXIMUM FLOW RATE ESTIMATED PIPE SIZE PIPE LENGTH FITTINGS EQIVILENT LENGTH TOTAL EQUIVILENT LENGTH PRESSURE LOSS / METRE PRESSURE LOSS        
  YOUR LABEL COLUMN A FROM THE TABLES COLUMN A FROM THE TABLES MM METRES TYPE METRES FROM TABLE B ADD PIPE LENGTH AND FITTINGS LENGTH MBAR/M FROM TABLE A MULTIPLY EQUIVILENT LENGTH BY PRESSURE LOSS        
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