Rotary socket with shut-off valve quick coupling EWO series EW-411 SAFETY DN7.4 with external or internal BSP thread. Air quick coupling disconnectable without pressure, equipped with a push-button locking mechanism. Compliance with ISO 4414 and EN983 standards. The rotary socket version allows easy positioning of the button in a convenient location after being screwed to the installation. Disconnection occurs in two stages: the first press of the button vents the quick coupling with the plug secured. The second press releases the plug, which can be safely removed. The plug has a profile compatible with the popular EURO standard DN7.2. Recommended plugs made of steel (not brass). Material: -socket body: outlet – galvanized steel, middle part – anodized aluminum, inlet part – nickel-plated brass; -springs and balls made of stainless steel. Performance: 1800 l/min (Pe = 6 bar, Δp = 1 bar, air). Working pressure: 12 bar. Operating temperature: from -10°C to +90°C. Sealing: NBR.