Compensation without transfer of spacer forces from pressure on supports and equipment. Balancing bellows and rods.
| Type | Unloaded (balancing), flanged/welded |
| Movements absorbed | axial without spacer force |
| Nominal diameter, DN | 50-800 mm (up to 3000 mm on request) |
| Working pressure, PN | up to 25 kgf/cm²; higher to order |
| Medium temperature | up to +450 °C |
| Working medium | water, steam, gas, petroleum products and other non-aggressive media |
| Bellows material | corrosion-resistant steel 12Kh18N10T |
| Connection | flanges or pipes for welding |
| Manufacturing | to project parameters (DN, PN, travel) |
Exact compensating capacity and face-to-face length depend on the size and are determined during selection from the completed questionnaire.
Other diameters and versions are manufactured to order.
Bellows unloaded expansion joint (SKR) is a expansion joint with a balancing bellows and external rods that compensates for axial movements without transferring the spacer force from internal pressure to fixed supports and equipment.
The unloaded circuit reduces the load on the supports and pipes of equipment (pumps, turbines), which is important for large-diameter and high-pressure pipelines.
OnePROM manufactures a control panel for the parameters of the object: diameter, pressure, temperature and axial stroke. The exact parameters are based on the questionnaire.
We receive the questionnaire or specification and select the type and parameters.
We calculate the compensating capacity and prepare a quotation.
We manufacture the expansion joint to project parameters under quality control.
We ship to site and, where required, provide installation, installation supervision and commissioning.
Compensation without transfer of spacer forces from pressure on supports and equipment. Balancing bellows and rods. Used in: heating networks and heat supply, steam pipelines, process pipelines, hot water and HVAC systems, boiler houses and central heating plants, oil and gas facilities.
The TFR is manufactured according to the parameters of the object: nominal diameter 50-800 mm (up to 3000 mm on request); working pressure up to 25 kgf/cm2; higher on request; temperature up to +450 °C; working medium — water, steam, gas, petroleum products and other non-aggressive media.
Complete the data sheet on the site or request a quote — we will select the size for your parameters (DN, PN, working travel, medium). Made to order, delivered across Russia and the CIS.
Send a data sheet or specification — we will prepare a calculation and a quotation.
Request a quote