MARKETS
CaseX DSI® GKO-mk
Polypropylene has a waxy and therefore a good sliding surface. The coefficient of sliding friction of PP on steel is approx. 0.2. In comparison, steel on steel is about 0.5. Due to the optimum friction conditions, abrasion is reduced to a minimum. Good stress cracking resistance, flexibility of the body, low weight, bending stiffness and stability of the skids form as well as excellent dielectric isolation characteristics are further benefiting properties. Polypropylene has a higher temperature resistance than polyethylene. The base material is resistant up to 100 °C. The specification of the load capacity applies for a skid height up to 75 mm. For skid heights above 75 mm, these values shall be multiplied by a factor of 0,75. These specifications apply to standard pipelines. To determine the correct distances for an individual application, other factors have to be taken into consideration, such as pipe diameter, wall thickness of pipe and type of media (gas or liquid). We will be glad to assist you in determining the exact dimensions.
Fields of application
For pipe pull-in and pipe storage; metal-free solution for small medium pipes and low static load; suitable for cathodic protected pipes
Material
Polypropylene
Properties
Easy installation and adaption to different media pipe diameters by means of clamping connection technology: max. static load per ring up to 250 kg; skid heights 25 to 125 mm; cathodic pipe protection; material temperature range -20 °C to 100 °C; coefficient of sliding friction of polypropylene on steel approx. 0.2; metal-free
Sizes
Outside pipe diameter from 160 mm to 430 mm
For pipe pull-in and pipe storage; metal-free solution for small medium pipes and low static load; suitable for cathodic protected pipes
Material
Polypropylene
Properties
Easy installation and adaption to different media pipe diameters by means of clamping connection technology: max. static load per ring up to 250 kg; skid heights 25 to 125 mm; cathodic pipe protection; material temperature range -20 °C to 100 °C; coefficient of sliding friction of polypropylene on steel approx. 0.2; metal-free
Sizes
Outside pipe diameter from 160 mm to 430 mm
ADDITIONAL INFO
Plastic spacers are usually installed with the following distances:
- Pipe diameter up to 300 mm at 2.5 m distance
- Pipe diameter 301 - 600 mm at 2.0 m distance
- Pipe diameter larger than 600 mm at 1.5 m distance
- The spans also depend on the specifications of the respective pipe manufacturers. In particular cases, the ring distance can be modified after checking the installation situation.

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