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Pipe Joints, Couplings & Repair Clamps - ECO

Pipe Joints, Couplings & Repair Clamps - ECO

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25<br />

ACCESSORIES<br />

Strip inserts<br />

These protect the sealing collar during increased mechanical or chemical loads in the area of the pipe end. Strip<br />

inserts are required for:<br />

– large pipe end gaps – external pressure (e.g. underwater pipes)<br />

– axial movements (expansion/contraction) – high temperatures<br />

– large misalignments and axial shifts – fuel applications<br />

– Vacuum / underpressure (e.g. suction line) – rubber swelling due to chemical contact<br />

Installation can also be carried out at a later date for all<br />

couplings. The material selection is determined by the<br />

medium and the temperature. Plastic strip inserts for<br />

normal temperatures and chemicals, steel strip inserts<br />

for higher temperatures, vacuum and external pressure.<br />

Combinations of plastic and steel are also possible. Tprofile<br />

strip inserts prevent the coupling moving due to<br />

axial changes in length and dynamic variations of load on<br />

the pipe system.<br />

OPEN-FLEX fitting pliers<br />

OPEN-FLEX couplings are opened during installation and<br />

closed around the pipe. The cut collar must be pressed<br />

with a certain force to achieve a perfect seal. At the same<br />

time, the rubber collar presses on the metal bridge of the<br />

coupling and thus makes it difficult to easily reinsert the<br />

locking bolts. This pressing force can be applied easily<br />

and saving energy with the OPEN-FLEX fitting pliers.<br />

Earth connector<br />

In contrast to STRAUB-GRIP couplings, FLEX/OPEN-FLEX couplings have no electrical conductivity and should be<br />

considered as insulating connections. If required, an electrical bridge from pipe to pipe can be established using<br />

a metallic earth connector, which is laid in the coupling. The STRAUB earth connector replaces the external cable<br />

bridge.<br />

1 3<br />

Torque wrench<br />

It is a requirement to use a torque wrench for the successful<br />

installation of a coupling. The range of torque required<br />

can be covered with three torque wrenches.<br />

2<br />

strip insert<br />

1 = Housing<br />

2 = Earth connector<br />

3 = Sealing collar<br />

• 4,5 - 30 Nm; Adapter 3/8“ to ½“<br />

• 25 - 125 Nm<br />

• 65 - 335 Nm

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