Can the Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar be safely disconnected under pressure using its venting pushâbutton mechanism?

Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar . can be safely disconnected under pressure using its venting pushâbutton mechanism? Yes. The Safety coupling socket DN7.4 is designed for safe disconnection under pressure by means of its twoâstage pushâbutton venting mechanism. First press vents the coupling while the plug remains secured, relieving internal pressure and preventing recoil. The second press then releases the plug for removal. This sequence allows safe, pressureârelieved disconnection in accordance with ISO 4414 and EN983. The swivel socket permits convenient button positioning even when installed under pressure. Note recommended use of EURO DN7.2âprofile steel plugs and observe the specified working range (1â16 bar) and temperature limits.

Does the Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar require special plugs for correct sealing and safety?

Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar requires plugs with a EURO DN7.2 profile made of steel (not brass) for correct sealing and safe operation. The socket vents before release and meets ISO 4414/EN983, but proper mating plugs-EURO DN7.2 steel type-are recommended to ensure sealing (NBR) and reliable locking; other plug types or materials may compromise safety and function.

How do I rotate the Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar after installation under pressure?

How to rotate the Safety coupling socket DN7.4, for air, swivel, non-pressure disconnected, with hose socket, 16 bar after installation under pressure? The Safety coupling socket DN7.4 is designed to be rotated under pressure to position the pushâbutton conveniently. To rotate it safely after installation: 1. Ensure the system pressure is within the working range (1â16 bar) and that the coupling is connected to the plug. 2. Press the pushâbutton once to vent the coupling while the plug remains secured. this relieves any trapped pressure in the couplingâs movable parts and prevents recoil. 3. While the coupling is vented (button held in the first position), rotate the socket body to the desired orientation. The swivel feature and materials (galvanized steel body, anodized aluminum middle, nickelâplated brass inlet) allow repositioning without disconnecting. 4. Release the button; the coupling will reseal automatically. 5. If you must fully release the plug after repositioning, press the button a second time to unlock and safely remove the plug (disconnects without pressure). Notes: use plugs with EURO DN7.2 steel profile for optimal compatibility. Follow ISO 4414 and EN983 safety guidelines.

Socket quick coupling safe DN7.4, for air, swivel, disconnected without pressure, with fitting for hose, 16 bar

All products, General-purpose low-pressure quick couplings/

Additional information

Material	CS – steel (cast iron)
Standard length [m]	10

Rotary quick-coupling socket with a shut-off valve, EWO series EW-411, SAFETY, DN 7.4, with a hose fitting. A single shut-off quick coupling for air, disconnected without pressure, fitted with a push-button locking mechanism. Venting the quick coupling before disconnection avoids the recoil effect when the plug is disconnected. This ensures the operator’s safety in accordance with ISO 4414 and EN 983. Operation of the quick coupling is simple: the first press of the button vents the quick coupling with the plug secured. The second press releases the plug, which can then be safely removed. The ability to rotate the socket allows the button to be easily set in a convenient position after screwing it to the installation, even under pressure. Plugs with a profile compliant with the popular EURO DN7.2 standard, made of steel (not brass), are recommended for the socket. On request, the sockets can be made in a different color: black, red, grey, yellow, green, or entirely of stainless steel. Material: – socket body: outlet – galvanized steel, central part – anodized aluminum, inlet part – nickel-plated brass; – springs and balls of stainless steel. Flow rate: 1960 l/min (Pe = 6 bar, Δp = 1 bar, air). Working pressure: 16 bar (minimum 1 bar). Operating temperature: from -20°C to +100°C. Sealing: NBR.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
EW-411-423	Quick coupling socket SAFETY DN7.4, push-button, swivel, for 6 mm hose	6	16	In stock	Enquiry
EW-411-424	Quick coupling socket SAFETY DN7.4, push-button, swivel, for 9 mm hose	8	16	In stock	Enquiry
EW-411-425	Quick coupling socket SAFETY DN7.4, push-button, swivel, for 13 mm hose	12	16	In stock	Enquiry
EW-411-426	Quick coupling socket SAFETY DN7.4, push-button, swivel, for 8 mm hose	8	16	In stock	Enquiry
EW-411-427	Quick coupling socket SAFETY DN7.4, push-button, swivel, for 10 mm hose	10	16	In stock	Enquiry

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Rotary quick-coupling socket with a shut-off valve, EWO series EW-411, SAFETY, DN 7.4, with a hose fitting. A single shut-off quick coupling for air, disconnected without pressure, fitted with a push-button locking mechanism. Venting the quick coupling before disconnection avoids the recoil effect when the plug is disconnected. This ensures the operator’s safety in accordance with ISO 4414 and EN 983. Operation of the quick coupling is simple: the first press of the button vents the quick coupling with the plug secured. The second press releases the plug, which can then be safely removed. The ability to rotate the socket allows the button to be easily set in a convenient position after screwing it to the installation, even under pressure. Plugs with a profile compliant with the popular EURO DN7.2 standard, made of steel (not brass), are recommended for the socket. On request, the sockets can be made in a different color: black, red, grey, yellow, green, or entirely of stainless steel. Material: – socket body: outlet – galvanized steel, central part – anodized aluminum, inlet part – nickel-plated brass; – springs and balls of stainless steel. Flow rate: 1960 l/min (Pe = 6 bar, Δp = 1 bar, air). Working pressure: 16 bar (minimum 1 bar). Operating temperature: from -20°C to +100°C. Sealing: NBR.