Coliter®’s telescopic joints provide axial extension, contraction, and angular misalignment compensation in water supply, HVAC, fire protection, and industrial pipelines. The series includes the VSSJA single flange telescopic joint, VSSJA-2 double flange limit expansion joint with built-in restraining rods to prevent over-extension during pressure surges, and the VSSJAF flanged telescopic coupling for easy installation between fixed flanges. Constructed from ductile iron with epoxy coating or stainless steel, these joints operate at PN10–PN16 (1.0–1.6 MPa) and temperatures up to 130°C. They absorb thermal movement, reduce pipe stress, simplify maintenance disassembly, and comply with GB/T 12465 standards—ideal for pump stations, long mains, and building risers.
