Apex Engineering

A roto-seal coupling (also known as a rotary union) is a mechanical device that allows the transfer of fluids—like air, water, oil, or gas—from a stationary source into a rotating part. Uflow’s Roto Seal Coupling (UCV series) enables a leak-free, continuous flow through rotating shafts—ideal for systems requiring both motion and fluid transfer.

• Media compatibility: air, water, oil, gas

• Port sizes: ¼″ to 2″ (BSP/NPT options) 

• Pressure rating: up to 10 bar (≈145 psi) 

• Temperature range: –10 °C to +180 °C (Viton® seals) 

• Max speed: 1 000 RPM 

• Materials: stainless steel housing (CF8/CF8M), high-performance bearings & Viton® seals