How does the Safety Socket DN7.4, Air, Swivel, Threaded, Non-Pressurised Disconnect, 16 bar ensure safe disconnect under pressure?

How does the Safety Socket DN7.4, Air, Swivel, Threaded, Non-Pressurised Disconnect, 16 bar ensure safe disconnect under pressure? The Safety Socket DN7.4, Air, Swivel, Threaded, Non-Pressurised Disconnect, 16 bar ensures safe disconnect under pressure through a combination of mechanical design and standardized safety features: - One-sided shut-off valve: automatically isolates the supply when disconnected, preventing downstream pressurised escape. - Two-step push-button operation: first press vents residual pressure from the coupling while holding the plug captive; second press releases the plug without recoil, eliminating sudden ejection. - Push-button lock and rotatable housing: the lock prevents accidental actuation; the swivel allows comfortable, controlled operation even when under pressure. - Compliance with ISO 4414 and EN983: operation and safety meet recognized pneumatic standards for controlled depressurisation. - Robust materials and recommended steel plug: durable construction (galvanized steel, anodized aluminum, nickel-plated brass, stainless springs/balls) maintains reliable valve function and safe sealing at up to 16 bar. - High flow capacity and temperature range: ensures predictable depressurisation behavior across operating conditions. Together these features provide controlled venting, secure retention of the plug during venting, and recoil-free release, ensuring safe disconnection under pressure.

Can the Safety Socket DN7.4, Air, Swivel, Threaded, Non-Pressurised Disconnect, 16 bar be fitted with full stainless-steel construction for corrosion-prone environments?

Yes. The Safety Socket DN7.4, Air, Swivel, Threaded, Non-Pressurised Disconnect, 16 bar can be supplied in full stainless-steel construction on request, making it suitable for corrosion‑prone environments. Standard construction uses galvanized steel, anodized aluminium, nickel‑plated brass and stainless‑steel springs/balls for durability, but a full stainless option is available to maximize corrosion resistance while retaining the same safety features, non‑pressurised disconnect function, 16 bar rating and operating temperature range.

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

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

Additional information

Material	CS – steel (cast iron)
Standard length [m]	4

Socket swivel with a shut-off valve quick coupling EWO series EW-411 SAFETY DN 7.4 with thread external or internal BSP. single shut-off quick coupling for air disconnected without pressure, equipped in push-button mechanism locking. venting quick coupling against disconnection allows avoid effect recoil, when plug is detachable. ensures to safety use the operator in accordance with ISO 4414 and EN983. action quick coupling is straight: first pressing button vents quick coupling at secured plug. second pressing releases plug, which can be safe removed. possibility turn socket allows po screwing for installation set easily button in convenient position, also under pressure. Do socket recommended are plugs o profile compliant with with popular the standard EURO DN7.2 of steel (not with brass). on request socket can be made in other color: black, red, grey, yellow, green, or entirely made of steel stainless. Material: – body socket: outlet – steel galvanized, part central – anodized aluminum, part inlet – brass nickel-plated; – spring and balls of steel stainless. flow capacity: 1960 l/min (Pe = 6 bar,Δp = 1 bar, air). Working pressure: 16 bar (minimum 1 bar). Operating temperature: od -20°C up to +100°C. sealing: NBR.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
EW-411-401	Quick coupling socket SAFETY DN7.4, push-button, swivel, 1/4" BSP male	-	16	In stock	Enquiry
EW-411-402	Quick coupling socket SAFETY DN7.4, push-button, swivel, 1/4" BSP female	-	16	In stock	Enquiry
EW-411-421	Quick coupling socket SAFETY DN7.4, push-button, swivel, 3/8" BSP male	-	16	In stock	Enquiry
EW-411-422	Quick coupling socket SAFETY DN7.4, push-button, swivel, 3/8" BSP female	-	16	In stock	Enquiry
EW-411-441	Quick coupling socket SAFETY DN7.4, push-button, swivel, 1/2" BSP male	-	16	In stock	Enquiry
EW-411-442	Quick coupling socket SAFETY DN7.4, push-button, swivel, 1/2" BSP female	-	16	In stock	Enquiry

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Socket swivel with a shut-off valve quick coupling EWO series EW-411 SAFETY DN 7.4 with thread external or internal BSP. single shut-off quick coupling for air disconnected without pressure, equipped in push-button mechanism locking. venting quick coupling against disconnection allows avoid effect recoil, when plug is detachable. ensures to safety use the operator in accordance with ISO 4414 and EN983. action quick coupling is straight: first pressing button vents quick coupling at secured plug. second pressing releases plug, which can be safe removed. possibility turn socket allows po screwing for installation set easily button in convenient position, also under pressure. Do socket recommended are plugs o profile compliant with with popular the standard EURO DN7.2 of steel (not with brass). on request socket can be made in other color: black, red, grey, yellow, green, or entirely made of steel stainless. Material: – body socket: outlet – steel galvanized, part central – anodized aluminum, part inlet – brass nickel-plated; – spring and balls of steel stainless. flow capacity: 1960 l/min (Pe = 6 bar,Δp = 1 bar, air). Working pressure: 16 bar (minimum 1 bar). Operating temperature: od -20°C up to +100°C. sealing: NBR.