Rigid polyurethane foams are made with a remarkably strong, yet lightweight, low-density structure that is both dimensionally stable and moisture-resistant with low vapor transmission. This special combination of properties allows us to design thermal insulation products that are self-supporting, can be combined with a wide range of substrates while requiring no additional adhesive, and when combined with the paper materials perform as external weather and moisture barriers.
Specification of Pipe Insulation Foam
Polyurethane foam has an extremely low thermal conductivity minimizing heat exchange with a minimal layer of insulation
• Polyurethane foams can be fine-tuned to operate in a wide range of temperatures
• Excellent mechanical properties are achieved even with low densities • Polyurethane insulated parts can be produced in factories or foamed in situ
• Polyurethane foam is compatible with many materials and provides excellent adhesion and long lasting dimensional stability
• Low water and air ingress is a long term guarantee for maintaining the excellent insulating properties throughout the life cycle of the pipeline
• Polyurethane insulated pipelines have minimal total cost of ownership
advantage
Blend Polyether Polyols for Pipe Insulation has the features as bellow:
Water blown,
ozone depletion is 0, green;
excellent flow properties,
good density,
flow properties than ordinary pipe system well over 10% of the blowing agent;
excellent physical properties of the foam,
through the national resistance to creep;
no situation brittle foam shrinkage,
good adhesion with out pipe for protecting.
Typical Properties of the polyether polyol used for pipe insulation as bellow:
Types
| Product range | Product Type | Blowing agent | Polyol Viscosity(mPa.s℃) | Ratio P:I | Cream time(sec) | Gel time(sec) | Free Rise Density(kg/m³) | Overall Filling Density |
| Pipe-In-Pipe system | General System | H2O/Pentane | 400-1500 | 1:1.0-1.7 | 10-45 | 45-270 | 25-40 | 50-80 |
| High Temperature Resistance System | H2O | 400-2000 | 1:1.0-1.5 | 10-45 | 45-270 | 25-40 | 50-80 | |
| Flame-Retardent System | H2O/Pentane | 400-1000 | 1:1.0-1.7 | 10-45 | 45-240 | 25-40 | 50-80 |
PU pipe foam insulation features
Low lambda-values, down to 23 mW/m.K (at 50 ºC) depending on blowing agent and process settings
Blowing agents of choice: cyclopentane, HCFC141b* and water
Low density and homogeneous density distribution
Optimized for top filling of 6-16 m pipe range
Easy and efficient handling with selected low viscosity raw materials
Superior foam flow properties to provide structural homogeneity and quality consistency in production
Superb adhesion to metal and HDPE due to well balanced polymerization
Solutions for high and low pressure foaming machines
Fire rated pipes with specialty polyol formulations
Application versatility in cold and hot pipelines
PU Pipe Insulation,Polyether polyol used for pipe insulation,polyurethane used for pipe Insulation,pipe Insulation Polyurethane Systems,you can contact BEIQIAO to get more information.
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