john guest pneumatic pipings

MS & AL PIPING FOR COMPRESSED AIR | Why Choose John Guest  |  Energy Efficiency

Instant piping technology

  • For Compressed Air(Using Aluminum pipe : Size 12 mm – 28 mm)
  • For Industrial Grade Water / Coolant / Light Oil (Using Nylon pipe : Size 15 mm)
  • For Drinking Water / Food Grade applications(using LLDPE tube : Size 12mm – 15 mm)
Reason for PRESSURE DROP in pipes
Internal Cleanliness Flow: Turbulent vs Laminar Internal Diameter Variation Leakages

TURBULENT FLOW: In GI pipe

FULL FLOW LAMINAR FLOW: Al / Nylon Pipe


A drop of 1 bar pressure in a pipe line results in power losses of over 10%

Annual costs for a 200m system

Benefits of installing

  • Smooth bore aluminium / Nylon Pipe
  • Consistent internal diameter
  • Drop lines integral with Water Trap system
  • Rapid fit/modification

Further Benefits

  • Reduction in labor in installation
  • Easily modified pipe layouts
  • Leak free air systems
  • Energy efficiency
  • No pipe corrosion
  • In short, a system with a lower overall cost of ownership.

Benefits when you modify

  • Modifications to system (adding drops) can be expensive
    • Time consuming
    • Production downtime
    • Overtime labor
  • New systems increase ease of modification
    • Drops can be installed in 10 minutes instead of 2 hours

Air leaks – Detrimental to your companies health

Leak Size Loss (CFM) Loss (INR/Day) Loss (INR/Year)
0.5mm 576 6.37 2352.00
1.5mm 9,288 99.96 36456.00
3mm 37,152 400.33 146069.00
5mm 83,952 905.03 330162.00
Based on Air pressure at 100 psig

FLOW RATES at your finger tips


Length 65 130 325 650 1000 1300 1650 3300 4900 6600 ft
Air Flow 20 40 100 200 300 400 500 1000 1500 2000 m
10 167 5 18.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0  
30 500 20 18.0 18.0 18.0 28 28 28 28 28 28 28
50 833 30 18.0 18.0 28 28 28 28 28 28 28  
100 1667 60 18.0 28 28 28 28 28        
200 3333 120 28 28 28              
300 5000 180 28 28                
400 6667 235 28                  
m3/h I/min cfm                    

This table illustrates the maximum air flow capacity for the 3 size ranges of JOHN GUEST based on an operating pressure of 115 PSI and a maximum pressure drop of 5% over the system.

For e.g. : A 100 metre long pipe line is required to convey a flow of 120 cfm at 115 psi. So the suitable pipe will be 28 mm. For smaller sizes consult factory for flow rates
 
 
Group Company of Barai Group