Single-sphere rubber expansion joint with galvanised flanges. It takes up axial, lateral and angular pipeline movements and damps vibration and noise from pumps and equipment.
The body is made of several rubber plies reinforced with textile cord. Its spherical shape takes up thermal expansion and installation misalignment and reduces the transmission of vibration and water hammer. Rubber beads on the ends act as the seal, so no separate gaskets are needed. Flanges are hot-dip galvanised steel, connected to GOST 33259.
PDF, 32.2 MB (in Russian)View
Products can also be manufactured to the customer's drawings and technical requirements, including larger diameters.
| Type | single sphere, flanged |
|---|---|
| Nominal bore, DN | 32–600mm |
| Working pressure | up to 1.0–1.6MPa |
| Medium temperature | −20 to +100 °C (depends on the rubber) |
| Body material | EPDM / NBR / NR, cord-reinforced |
| Flanges | steel, hot-dip galvanised, GOST 33259 |
| Manufacture | to the customer's sizes and drawings |
Send us the diameter, operating conditions and timeline — we will reply with an engineering review and an indicative price.
Pumping stations, water supply and heating systems, heat substations and boiler houses, water treatment, industrial pipelines.
The stuffing-box expansion joint is the most reliable, time-tested engineering device for absorbing the thermal expansion and contraction of metal (thermal deformation) on high-temperature trunk pipelines.
Flanged expansion joint with a corrugated stainless-steel bellows.
