Multi-node compensators are used to absorb high expansion amounts in very long pipelines. As the number of knots increases, the possibility of torsion of the compensator increases. Although this can be prevented with a certain amount of liner, the best solution is the application of External Pressure Compensator. It is also suitable to be used in fluids (eg hot oil etc.) where high safety values are required.

Here, by changing the direction of the fluid, the pressure is applied outside the bellows, and a compensator that can withstand high pressure and expansion amounts without torsion is formed.

External pressure compensators are manufactured with standard 30, 60, 90 and 120 mm expansion, but special productions are possible within other desired expansion values.

Structure:  
The design and production are made according to EJMA standards. Pressure and temperature values are in accordance with DIN 2401 standards.

Material Structure:  
In accordance with DIN 17440, stainless steel, fittings are produced in stainless steel or carbon steel. Other materials can be produced upon request.

Links:  
Fixed flange, swivel flange, weld neck, threaded, threaded

Nominal Diameter:  
DN 25 (1") - DN 1500 (60")

Pressure Values:  
External pressure compensators are produced in the standard PN16 pressure class, and they are produced as a result of special designs for higher pressure classes. The operating pressure depends on the nominal diameter and operating temperature.

Temperature Range:  
According to material structure - 196°C to + 600°C

Application:  
Thermal balance and mechanical expansion in all types of pipelines. The widest application area is underground pipelines. It is frequently used especially in geothermal lines.