- FKM (Viton type) seals
- PTFE self-lubricating stem bushings and seats cannot stick or bind
- Precision moulded in polypropylene. Polypropylene is reinforced with fibreglass for additional strength
- Self-aligning ball moves freely against the PTFE seats for smooth operation. The valve opens and closes with very little pressure on the handle
- Ball is diamond turned, after moulding, to make it spherically perfect, which provides precise contact between ball and seats.