Bore:
full.
Stem:
security system with self-adjusting gland.
Seats:
high resistance virgin PTFE.
Upper seal:
DSS4® Dynamic Sealing System (international patent) 4 anti-friction self-adjusting cone-shaped seals, in PTFE and dynamic seals.
Ideal system to ensure long life cycles, high and low pressure.
Finishing:
Internal surfaces are nickel free and comply with forthcoming European drinking water regulations.
Ball:
special self-cleaning system that avoids stagnation.
• The TOTAL DVGW series has been designed to fully comply with forthcoming European drinking water regulations. All internal surfaces are nickel free and all components in contact with water fully comply to the regualtions covering use in drinking water system.