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Insulators for pipe-in-pipe Systems PSIcsm03019

csm_03_019_Gleitkufen_RGV_56f5eb
csm_03_019_Gleitkufen_RGV_56f5eb

Insulators for pipe-in-pipe Systems PSI

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Description:

Insulators for pipe-in-pipe Systems

Polypropylen casing spacers are universally applicable in the installation of pipelines when a media pipe runs through a casing pipe.
 
Plastic insulators provide many advantages for these applications:

• Easy penetration of carrier pipe. The insulator´s friction coeficient is reduced to a mnimum    because they are made of plastic.

• The minimised friction prevents the media pipe from taking damage inside the casing pipe.

• A wide range of skid heights ensures concentricity of the media pipe inside the casing pipe

• Excellent insulation characteristics. All requirements of cathodic pipe protection are met.

Casing Spacers are suitable for all pipe diameters from 25 mm upwards and many skid heights are available to suit specific requirements.
 

Materials

Polypropylene has a good friction coeffi cient due to its waxy surface with good sliding properties. The sliding friction coeffi cient is approx. 0.2 for PP on steel. In comparison to this, steel on steel is approx. 0.5. Therefore the abrasion is reduced to a minimum. The material is strong and yet fl exible and is therefore resistant to stress cracking. Flexibility of the body, stability of the skid form and excellent dielectric insulation are some more of the good characteristics of this material. Polypropylene has a higher temperature resistance compared to polyethylene. The base material is resistant from -20 °C to +100 °C.
 

Installation notes

Plastic insulator rings are normally installed with the following spacing in between the rings:

  • Pipe diameter up to 300 mm in 2.5 m support distance
  • Pipe diameter 301 - 600 mm in 2.0 m support distance
  • Pipe diameter of more than 600 mm in 1.5 m support distance
     

In particular cases, the ring distance may be modifi ed after having examined the
installation situation.
 

Load capacity

 
Type max. static load per ring*
PA/PE 0,75 – PA/PE 1,5 85 kg
PA/PE 2,0 – PA/PE 3,0 100 kg
PA/PE 4,0  200 kg
PA/PE 6,0 – PA/PE 12,0 250 kg
AZ/AC 1 / AZ/AC 2 200 kg
GKO-mK 250 kg
MA 650 kg
RGV 1.000 kg
GKO-gl 4.000 kg
GKO-gs 14.200 kg

*at an application temperature of +23 °C
 

The load capacity data is applicable for a skid height up to 75 mm. For skid heights
above 75 mm, these values need to be multiplied with a factor of 0.75.

 

All values are calculated for standard pipes. To determine the correct distance for your individual application many other factors have to be taken into consoderation, such as carrier pipe wall thickness, pipe length and type of media. For further assistance please get in contact with us.

If you cannot determine the type according to our tables please specify:

  • Outer diameter of carrier pipe (inclusive coating) in mm
  • Inner diameter of casing pipe


 



About the supplier:

The company fully justifies its motto. In its portfolio, there really is everything that customers can need when building a pipeline - from seals for wall sleeves to metal corrosion protection.
PSI Products GmbH is the German division of the GPT group of companies, the leading manufacturer of components for pipelines. PSI products are exported to more than 50 countries.
What makes PSI Products GmbH the best on the market?
PSI Products GmbH is engaged in the design and manufacture of components and materials for the construction of pipelines of various purposes and scale.
In addition to standard products, the company can also develop special solutions for specific tasks.
Products of PSI Products GmbH are valued for high quality, reliability and durability.

Benefits:
Half a century of experience in the production of components for pipelines.
Subdivisions in Germany, the United States, England, the United Arab Emirates and Malaysia.
Own production and storage facilities.
INTENDED:
Construction and repair of pipelines.
Gas and water supply companies.
Enterprises of chemical and petrochemical industries.
Construction of compressor stations.
Any other area where the operation of a pipeline is expected.

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