Safety coupling I.D. 10, Steel / brass galvanised, R 3/4 ET - Riegler 107617

Safety coupling I.D. 10, Steel / brass galv., R 3/4 ET Operating pressure max. 16 bar, Med./ambient temp. -20 °C to 100 °C High-quality, robust and durable, one-hand quick disconnect safety couplings, with very high flow rate and only a small pressure drop. The coupling is released fully automatically in two steps. Air is relieved from the coupling before it is completely disconnected. The plug is only disconnected from the coupling if the residual pressure has dropped below 0.3 bar. The dreaded whiplash effect is thus avoided and the risk of injury virtually eliminated. Suitable for all applications with an above-average air consumption and characterised by extreme conditions. This safety version conforms to ISO-Standard DIN EN ISO 4414. These safety couplings are not suitable for direct attachment to pulsating tools. We recommend using our vibration dampers, according to ISO 6150 § 7.1. Areas of application: Pneumatic system, machine and plant engineering, manufacturing industry, workshops, automotive, mining.

Standards and origin

• Customs tariff number: 84812090
• Country of origin: SE

About Safety couplings

A safety coupling vents the hose before it releases the plug, so the line cannot whip around on disconnection. Coupling is done one-handed by pushing the plug in, uncoupling takes two steps via the locking sleeve. Operating pressure runs from 12 to 35 bar depending on the range.

What matters when choosing

• Plug profile and nominal size have to match the plugs already in use. Both are listed in the technical data of each article and act as the first filter before anything else.
• The connection is available as female and male thread in G 1/4 to G 3/4 and in NPT 1/4 to NPT 1/2. Choose NPT only where the installation is already built on that thread.
• The housing decides weight and durability. Nickel-plated brass and QPQ-treated steel are the workshop standard, anodised aluminium and glass fibre reinforced PA6 GF 30 save weight, stainless steel 1.4404 withstands wet and chemical areas.
• Operating pressure of 12 to 35 bar varies by range. Some versions work down to -0.95 bar and therefore cover vacuum as well, and flow rate is stated as 1350 l/min (air).
• For the seal, NBR covers normal service and FKM higher temperatures. Medium temperature runs from -20 °C to 60 °C or to 150 °C depending on the version.

Typical applications

• Air take-off points on workshop manifolds where hoses are swapped several times a day
• Connecting air tools such as impact wrenches and grinders at assembly stations
• Hose reels and wall outlets where a recoiling hose would put people at risk
• Test and filling stations handling gases that must be vented under control
• Wet or outdoor installations using couplings in stainless steel 1.4404

The released media are compressed air and gases, sealing is done with NBR or FKM. The range includes the Bi-Tec, DKSK and SEK series, 252 articles in total with overall lengths from 43 to 235 mm.