Check-valve W.F. turning nuts

Controllable anti-pollution check valve, EA type.
Model with two turning nuts for fitting directly after the water meter.
For all drinking water networks: building, water distribution, pumping.
Quiet operation, low pressure drops.
Total tightness even with very low counter-pressure.
Supplied with two F 1/8” bosses and brass plugs.
Reduced implementation time to ensure tightness fittings.