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CaseX DSI® MA

Fields of Application
For pipe pull-in and pipe storage; suitable for larger medium pipes and higher static loads
Material
DescriptionStainless steel on request
Material typePolypropylene
Boltsgalvanized
Colorblack
Properties
Temperature range-20 °C bis + 100 °C
Skid heights36 mm
Static load capacity per ring650 kg
Coefficient of sliding frictioncoefficient of sliding friction of polypropylene on steel approx. 0.2
Spacer width160 mm
DescriptionThe variable number of segments ensures that the spacer can be adapted to the different carrier pipe diameters
Tipps
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.
Segment MA 2
Skid heights 36 mm

Features

Easy pull-in of the carrier pipe The spacer's friction coefficient is reduced to a minimum because they are made of plastic The minimized friction prevents damage to the protective coating and wrapping of the pipes A wide range of skid heights facilitates the centering/storage of carrier pipe in casing pipe Excellent insulating properties of the materials used. All requirements of cathodic pipe protection are fulfilled

Areas of application

Casing spacers made of high-quality polypropylene material are universally applicable in the installation of all kinds of pipelines when the carrier pipe runs through a casing pipe.

Description

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.

Assembly Instructions

1Put out elements of spacers and screws according to selection table. Connect elements as a
spacer band and fix the nuts on the screws with just a few rotations.
2Wrap the pipe surfaces in the contact area of the pipe/spacer with a anti slipping protection
band to ensure optimum safety against slipping.
3Put pre-mounted elements around the medium pipe and close last joint.
5Square nuts have to fit into the designed cavity of the spacer segment.
6Tighten screws with a torque moment of max. 8 Nm to fix the spacer ring irremovable on the pipe. Screws don’t have to be necessarily completely contracted.
!

Warning:
Block screw lengths as specified for the respective segments.

PSI-warranty is limited on the substitute of faulty material. The suitability of the product has to be tested for the special use by the user self dependent

Certificates
  • Ref_ZERTIFIKAT_ISO_9001_2015
  • Ref_AEO_ZERTIFIKAT

PSI Products GmbH

Ulrichstrasse 25
72116 Mössingen

Telefon: 0 049 (0)7473 37 81 0
E-Mail: vertrieb@psi-products.de