COOL-FIT is a complete system solution for secondary cooling and refrigeration piping systems. The system is based on the tried and tested ABS plastic system from GF Piping Systems which contains pipe fittings valves and transition fittings, now with the option for pre-insulated pipe and fittings with outer jackets in black. You can adapt the system solution to your particular needs. For example white pre-insulated for food production halls or standard plastic pipe with control valves for pump houses or OEM chillers.
The system is water and vapour tight. Ideal for the transportation of chilled water, iced water, salt solutions, glycol solutions and organic salt solutions.
COOL-FIT® ABS Plus is a pre-insulated plastic piping system for unrivaled energy efficiency and tough secondary cooling and refrigeration.
COOL-FIT® ABS Plus is ready to install on chilled water, air conditioning systems and/or secondary...
COOL-FIT® ABS Lite is a pre-insulated version of COOL-FIT® ABS ready to install on-site for chilled water and air conditioning systems inside buildings.
The COOL-FIT® ABS system includes pipe, fittings, transition fittings to copper,...
COOL-FIT® ABS is a complete system solution for secondary cooling and refrigeration piping systems. The system is based on the tried and tested ABS plastic system from GF Harvel which contains pipe fittings, valves and transition fittings,...
Plastic pipe dimensions are, by convention, specified by the outside diameter, usually denoted by e. This may be supplemented by stating the nominal inside diameter or DN. Sometimes the pipe wall thickness is specified by the SDR or Standard Dimension Ratio.
SDR = d divided by e.
Where d = the outside diameter (mm)
Where e = the pipe wall thickness (mm)
The pipe size can be calculated as follows:
di = 18.8 √Q1 ÷ v
di = Inside pipe diameter (mm)
Q1 = Flowrate in m3/h
v = Flow velocity, usually 0.5 to 1.0 m/s for suction lines
1.0 to 3.0 m/s for discharge lines.
|Material||α = mm/mK|
A rough calculation of pressure loss in straight length plastic pipe can be done using,
Δ Pr = λ × (L ÷ di) × (ρ ÷ 2.102) × v2
Δ Pr = Pressure loss (bar)
λ = Pipe friction factor
L = Length of straight pipe (m)
di = Inside pipe diameter
ρ = Liquid density (kg/m3)
v = Flow velocity (m/s)
For smooth bore plastic pipe: λ = 0.02