Check-valve W.H. elbow

Controllable anti-pollution check valve, EA type.
Elbow model with turning nut 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 4 bosses with brass plugs (two by side).
Reduced implementation time to ensure tightness fittings.
1 model stored answers at left or right angle installation.