This non-retum valve which is certified by the French NF anti-pollution mark is designed to protect drinking water systems against polluted water returning to the supply, particularly when sited after the meter. Patent pending. This valve should be chosen wherever perfect water-tightness and on-site dismantling are required, together with excellent hydraulic performance and little energy loss.

FEATURES

• 1/2″ diameter bosses with test cock allowing checksand sampling
• Inspection cover for checks and replacement of internal parts without dismantling the device
• Axial guide at the head of the closing system ensures perfect centring guaran-teeing water-tightness under 3 cm of water column whatever the angle of the valve
• Water tightness guaranteed by flat seal
• Drain plug
• Removable locking system allows the entire closing system to bereplaced without special tooling
• Return spring allows the device to function in anyposition
• Seat and guide in bronze for anti-corrosion