EXPANSION JOINTS for a HIGH TEMPERATURE PIPELINE
at a power plant

Belman was recently consulted by our client to engineer and manufacture Expansion Joints for a high temperature pipeline at a South European Power Plant.

The challenge with this Expansion Joints project as Belman was asked to design for our client was, to design excellent engineering of Expansion Joints that easily and smoothly year after year would be able to work with temperatures of up to 600 o C (1112o F), large movements, and considerable external forces.

Important tasks for the client

Other very important tasks for especially this case where the external forces that the expansion joint would be exposed to. The external forces originate from a combination of the deadweight of a connecting pipe between the two hinged expansion joint and anticipated wind load on the system.

Engineering job with such high demands require exceptional engineering knowledge in the entire process from development to design to production and delivery.

By choosing Belman A/S, you are  guaranteed the world’s probably best engineering and service team for the design, manufacture and delivery of Expansion Joints for your project.

The Belman solution

The result was a system of three expansion joints constructed from 1CrMO9-10 (1.7380) consisting of two hinged and one unrestrained expansion joint. The excellence of this well-thought-out solution is that the external forces that the expansion joint will be exposed to will be absorbed in the hinged expansion joint, whereas the unrestrained expansion joint would not be subjected to external forces.

Design parameters of this High Temperature Expansion Joins

The suppled Expansion Joints for the high temperature pipeline at a power plant in South Europe have the following design parameters:

Type: UN1SH • Quantity: 1 pcs. • Dimension: DN 1200 • Design temperature: +600°C • Design pressure: +0.1 barG • Media: – • AX: 243mm • AN: 0,12 Deg • Bellows: 309 – 1.4828 • Welding ends: 10CrMo910 – 1.7380 • Design code: EJMA

Type: AN1SH • Quantity: 1 pcs. • Dimension: DN 1200 • Design temperature: +600°C • Design pressure: +0.1 barG • Media: – • AX:0 • AN: 2 deg • Bellows: 309 – 1.4828 • Welding ends: 10CrMo910 – 1.7380  • Design code: EJMA

Type: UN2SU • Quantity: 1 pcs. • Dimension: DN 1200 • Design temperature: +600°C • Design pressure: +0.1 barG • Media: – • AX: 291 • AN: 0,0° • Bellows: 309 – 1.4828 • Welding ends: 10CrMo910 – 1.7380   • Design code: EJMA

Expansion joints for a high temperature pipeline at a power plant